/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/fragtest_simple.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:31:48,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:31:48,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:31:48,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:31:48,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:31:48,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:31:48,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:31:48,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:31:48,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:31:48,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:31:48,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:31:48,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:31:48,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:31:48,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:31:48,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:31:48,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:31:48,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:31:48,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:31:48,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:31:48,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:31:48,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:31:48,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:31:48,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:31:48,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:31:48,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:31:48,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:31:48,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:31:48,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:31:48,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:31:48,935 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:31:48,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:31:48,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:31:48,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:31:48,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:31:48,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:31:48,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:31:48,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:31:48,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:31:48,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:31:48,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:31:48,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:31:48,945 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 11:31:48,976 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:31:48,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:31:48,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:31:48,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:31:48,978 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:31:48,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:31:48,978 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:31:48,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:31:48,979 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:31:48,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:31:48,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:31:48,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:31:48,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:31:48,980 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:31:48,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:31:48,980 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:31:48,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:31:48,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:31:48,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:31:48,981 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:31:48,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:31:48,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:31:48,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:31:48,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:31:48,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:31:48,982 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:31:48,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:31:48,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:31:48,983 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:31:48,983 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:31:49,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:31:49,465 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:31:49,470 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:31:49,472 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:31:49,473 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:31:49,474 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/fragtest_simple.i [2020-09-21 11:31:49,570 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50ea462c8/06337ce54c8e484484f5f9ca8277053d/FLAG31a0fb5db [2020-09-21 11:31:50,131 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:31:50,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/fragtest_simple.i [2020-09-21 11:31:50,141 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50ea462c8/06337ce54c8e484484f5f9ca8277053d/FLAG31a0fb5db [2020-09-21 11:31:50,470 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50ea462c8/06337ce54c8e484484f5f9ca8277053d [2020-09-21 11:31:50,484 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:31:50,488 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:31:50,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:31:50,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:31:50,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:31:50,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:31:50" (1/1) ... [2020-09-21 11:31:50,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ad355a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:31:50, skipping insertion in model container [2020-09-21 11:31:50,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:31:50" (1/1) ... [2020-09-21 11:31:50,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:31:50,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:31:50,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:31:50,753 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:31:50,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:31:50,794 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:31:50,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:31:50 WrapperNode [2020-09-21 11:31:50,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:31:50,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:31:50,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:31:50,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:31:50,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:31:50" (1/1) ... [2020-09-21 11:31:50,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:31:50" (1/1) ... [2020-09-21 11:31:50,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:31:50" (1/1) ... [2020-09-21 11:31:50,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:31:50" (1/1) ... [2020-09-21 11:31:50,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:31:50" (1/1) ... [2020-09-21 11:31:50,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:31:50" (1/1) ... [2020-09-21 11:31:50,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:31:50" (1/1) ... [2020-09-21 11:31:50,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:31:50,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:31:50,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:31:50,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:31:50,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:31:50" (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 11:31:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:31:50,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:31:50,999 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-21 11:31:51,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-21 11:31:51,000 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:31:51,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:31:51,000 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-21 11:31:51,000 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-21 11:31:51,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-21 11:31:51,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:31:51,001 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:31:51,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:31:51,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:31:51,261 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:31:51,261 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-21 11:31:51,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:31:51 BoogieIcfgContainer [2020-09-21 11:31:51,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:31:51,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:31:51,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:31:51,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:31:51,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:31:50" (1/3) ... [2020-09-21 11:31:51,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6ce3e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:31:51, skipping insertion in model container [2020-09-21 11:31:51,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:31:50" (2/3) ... [2020-09-21 11:31:51,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6ce3e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:31:51, skipping insertion in model container [2020-09-21 11:31:51,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:31:51" (3/3) ... [2020-09-21 11:31:51,278 INFO L109 eAbstractionObserver]: Analyzing ICFG fragtest_simple.i [2020-09-21 11:31:51,295 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:31:51,309 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:31:51,334 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:31:51,374 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:31:51,374 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:31:51,374 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:31:51,375 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:31:51,375 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:31:51,375 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:31:51,375 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:31:51,376 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:31:51,404 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-09-21 11:31:51,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-21 11:31:51,413 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:31:51,414 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:31:51,415 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:31:51,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:31:51,424 INFO L82 PathProgramCache]: Analyzing trace with hash 317368997, now seen corresponding path program 1 times [2020-09-21 11:31:51,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:31:51,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2069974494] [2020-09-21 11:31:51,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:31:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:51,643 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:51,644 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:51,644 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:51,644 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:51,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 11:31:51,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:51,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:31:51,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:51,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:31:51,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:31:51,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:31:51,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:51,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:31:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:51,701 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:51,701 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:51,701 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:51,702 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:51,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:31:51,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:51,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:31:51,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:51,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:31:51,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:51,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:31:51,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:31:51,715 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 11:31:51,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2069974494] [2020-09-21 11:31:51,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:31:51,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-21 11:31:51,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322546340] [2020-09-21 11:31:51,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-21 11:31:51,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:31:51,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-21 11:31:51,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-21 11:31:51,753 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2020-09-21 11:31:51,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:31:51,784 INFO L93 Difference]: Finished difference Result 47 states and 62 transitions. [2020-09-21 11:31:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-21 11:31:51,786 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2020-09-21 11:31:51,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:31:51,797 INFO L225 Difference]: With dead ends: 47 [2020-09-21 11:31:51,797 INFO L226 Difference]: Without dead ends: 22 [2020-09-21 11:31:51,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-21 11:31:51,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-21 11:31:51,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-09-21 11:31:51,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-21 11:31:51,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2020-09-21 11:31:51,854 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 15 [2020-09-21 11:31:51,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:31:51,855 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2020-09-21 11:31:51,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-21 11:31:51,855 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-09-21 11:31:51,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-21 11:31:51,856 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:31:51,856 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:31:51,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:31:51,857 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:31:51,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:31:51,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1632722591, now seen corresponding path program 1 times [2020-09-21 11:31:51,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:31:51,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25140677] [2020-09-21 11:31:51,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:31:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:51,925 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:51,926 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:51,926 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:51,926 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:51,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:31:51,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:51,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 11:31:51,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:51,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:31:51,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:31:51,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:31:51,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:52,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:31:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:52,035 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:52,035 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:52,036 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:52,036 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:52,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:31:52,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:52,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:52,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:52,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:31:52,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:52,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:31:52,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:52,043 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 11:31:52,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25140677] [2020-09-21 11:31:52,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:31:52,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:31:52,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957421124] [2020-09-21 11:31:52,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:31:52,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:31:52,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:31:52,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:31:52,048 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 5 states. [2020-09-21 11:31:52,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:31:52,112 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2020-09-21 11:31:52,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 11:31:52,113 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-21 11:31:52,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:31:52,114 INFO L225 Difference]: With dead ends: 31 [2020-09-21 11:31:52,115 INFO L226 Difference]: Without dead ends: 29 [2020-09-21 11:31:52,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:31:52,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-09-21 11:31:52,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2020-09-21 11:31:52,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-21 11:31:52,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2020-09-21 11:31:52,128 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 17 [2020-09-21 11:31:52,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:31:52,128 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2020-09-21 11:31:52,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:31:52,128 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2020-09-21 11:31:52,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-21 11:31:52,130 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:31:52,130 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:31:52,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:31:52,131 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:31:52,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:31:52,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1401298672, now seen corresponding path program 1 times [2020-09-21 11:31:52,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:31:52,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122593138] [2020-09-21 11:31:52,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:31:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:52,174 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:52,174 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:52,174 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:52,175 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:52,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-21 11:31:52,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:52,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:31:52,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:52,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:31:52,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:31:52,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:31:52,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:52,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:31:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:52,251 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:52,252 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:52,252 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:52,252 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:52,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:31:52,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:52,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:52,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:52,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:31:52,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:52,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:31:52,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:52,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 11:31:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:52,265 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:52,265 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:52,265 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:52,266 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:52,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:52,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:52,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:31:52,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:52,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:52,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:52,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:52,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:52,275 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:31:52,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122593138] [2020-09-21 11:31:52,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:31:52,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:31:52,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302867302] [2020-09-21 11:31:52,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:31:52,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:31:52,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:31:52,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:31:52,278 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 5 states. [2020-09-21 11:31:52,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:31:52,371 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2020-09-21 11:31:52,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:31:52,372 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-09-21 11:31:52,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:31:52,377 INFO L225 Difference]: With dead ends: 49 [2020-09-21 11:31:52,377 INFO L226 Difference]: Without dead ends: 34 [2020-09-21 11:31:52,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:31:52,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-21 11:31:52,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2020-09-21 11:31:52,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-21 11:31:52,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-09-21 11:31:52,402 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 25 [2020-09-21 11:31:52,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:31:52,403 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-09-21 11:31:52,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:31:52,403 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-09-21 11:31:52,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-21 11:31:52,404 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:31:52,404 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:31:52,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:31:52,405 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:31:52,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:31:52,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1107622837, now seen corresponding path program 1 times [2020-09-21 11:31:52,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:31:52,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [823592399] [2020-09-21 11:31:52,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:31:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:52,451 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:52,451 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:52,451 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:52,453 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:52,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-21 11:31:52,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:52,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 11:31:52,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:52,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:31:52,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:31:52,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:31:52,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:52,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:31:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:52,513 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:52,513 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:52,514 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:52,514 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:52,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:31:52,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:52,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:52,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:52,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:31:52,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:52,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:31:52,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:52,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:31:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:52,524 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:52,525 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:52,525 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:52,525 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:52,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:52,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:52,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:31:52,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:52,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:52,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:52,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:52,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:52,534 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:31:52,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [823592399] [2020-09-21 11:31:52,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:31:52,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-21 11:31:52,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075257139] [2020-09-21 11:31:52,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:31:52,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:31:52,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:31:52,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:31:52,537 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 6 states. [2020-09-21 11:31:52,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:31:52,654 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2020-09-21 11:31:52,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 11:31:52,655 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-09-21 11:31:52,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:31:52,656 INFO L225 Difference]: With dead ends: 55 [2020-09-21 11:31:52,656 INFO L226 Difference]: Without dead ends: 40 [2020-09-21 11:31:52,657 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:31:52,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-21 11:31:52,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 32. [2020-09-21 11:31:52,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-21 11:31:52,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-09-21 11:31:52,665 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 27 [2020-09-21 11:31:52,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:31:52,666 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-09-21 11:31:52,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:31:52,666 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-09-21 11:31:52,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-21 11:31:52,667 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:31:52,667 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:31:52,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:31:52,668 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:31:52,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:31:52,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1590427366, now seen corresponding path program 2 times [2020-09-21 11:31:52,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:31:52,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313172492] [2020-09-21 11:31:52,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:31:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:52,745 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:52,745 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:52,746 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:52,746 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:52,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:31:52,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:52,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-21 11:31:52,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:31:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:31:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-21 11:31:52,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:52,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:31:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:52,854 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:52,854 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:52,854 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:52,854 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:52,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:31:52,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:52,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:52,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:52,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:31:52,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:52,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:31:52,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:52,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 11:31:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:52,862 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:52,862 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:52,862 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:52,863 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:52,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:52,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:52,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:52,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:52,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:52,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:52,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:52,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:52,870 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:31:52,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313172492] [2020-09-21 11:31:52,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:31:52,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:31:52,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529618630] [2020-09-21 11:31:52,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:31:52,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:31:52,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:31:52,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:31:52,872 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 7 states. [2020-09-21 11:31:52,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:31:52,964 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2020-09-21 11:31:52,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:31:52,965 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2020-09-21 11:31:52,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:31:52,966 INFO L225 Difference]: With dead ends: 47 [2020-09-21 11:31:52,966 INFO L226 Difference]: Without dead ends: 45 [2020-09-21 11:31:52,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:31:52,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-21 11:31:52,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2020-09-21 11:31:52,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-21 11:31:52,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2020-09-21 11:31:52,976 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 29 [2020-09-21 11:31:52,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:31:52,977 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2020-09-21 11:31:52,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:31:52,977 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2020-09-21 11:31:52,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-21 11:31:52,980 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:31:52,980 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:31:52,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:31:52,981 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:31:52,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:31:52,981 INFO L82 PathProgramCache]: Analyzing trace with hash -30298372, now seen corresponding path program 3 times [2020-09-21 11:31:52,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:31:52,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248292064] [2020-09-21 11:31:52,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:31:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:53,093 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:53,093 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:53,093 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:53,094 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:53,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-21 11:31:53,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:53,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-21 11:31:53,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:53,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:31:53,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:31:53,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-21 11:31:53,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:53,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:31:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:53,203 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:53,203 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:53,203 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:53,204 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:53,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:31:53,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:53,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:53,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:53,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:31:53,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:53,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:31:53,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:53,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 11:31:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:53,223 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:53,223 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:53,224 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:53,224 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:53,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:53,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:53,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:53,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:53,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:53,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:53,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:53,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:53,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-21 11:31:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:53,242 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:53,242 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:53,242 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:53,242 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:53,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:53,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:53,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:31:53,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:53,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:53,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:53,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:53,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:31:53,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:31:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:53,260 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:53,261 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:53,261 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:53,261 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:53,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:53,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:53,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:31:53,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:53,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:53,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:53,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:53,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:53,278 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-21 11:31:53,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248292064] [2020-09-21 11:31:53,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:31:53,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 11:31:53,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048850841] [2020-09-21 11:31:53,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:31:53,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:31:53,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:31:53,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:31:53,283 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 9 states. [2020-09-21 11:31:53,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:31:53,439 INFO L93 Difference]: Finished difference Result 83 states and 96 transitions. [2020-09-21 11:31:53,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:31:53,440 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2020-09-21 11:31:53,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:31:53,442 INFO L225 Difference]: With dead ends: 83 [2020-09-21 11:31:53,443 INFO L226 Difference]: Without dead ends: 58 [2020-09-21 11:31:53,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:31:53,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-21 11:31:53,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 46. [2020-09-21 11:31:53,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-21 11:31:53,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2020-09-21 11:31:53,457 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 45 [2020-09-21 11:31:53,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:31:53,457 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2020-09-21 11:31:53,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:31:53,458 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2020-09-21 11:31:53,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 11:31:53,459 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:31:53,459 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:31:53,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:31:53,460 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:31:53,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:31:53,460 INFO L82 PathProgramCache]: Analyzing trace with hash 130155809, now seen corresponding path program 4 times [2020-09-21 11:31:53,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:31:53,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2058432979] [2020-09-21 11:31:53,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:31:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:53,518 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:53,519 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:53,519 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:53,519 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:53,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:31:53,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:53,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-21 11:31:53,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:53,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:31:53,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:31:53,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-21 11:31:53,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:53,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:31:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:53,615 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:53,616 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:53,616 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:53,616 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:53,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:31:53,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:53,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:53,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:53,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:31:53,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:53,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:31:53,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:53,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 11:31:53,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:53,624 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:53,624 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:53,625 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:53,625 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:53,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:53,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:53,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:53,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:53,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:53,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:53,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:53,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:53,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-21 11:31:53,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:53,634 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:53,634 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:53,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:53,635 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:53,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:53,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:53,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:53,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:53,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:53,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:53,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:53,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:53,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:31:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:53,644 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:53,645 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:53,645 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:53,645 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:53,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:53,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:53,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:53,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:53,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:53,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:53,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:53,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:53,654 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 24 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-21 11:31:53,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2058432979] [2020-09-21 11:31:53,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:31:53,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:31:53,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612174585] [2020-09-21 11:31:53,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:31:53,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:31:53,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:31:53,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:31:53,657 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 10 states. [2020-09-21 11:31:53,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:31:53,873 INFO L93 Difference]: Finished difference Result 87 states and 103 transitions. [2020-09-21 11:31:53,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:31:53,877 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 47 [2020-09-21 11:31:53,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:31:53,881 INFO L225 Difference]: With dead ends: 87 [2020-09-21 11:31:53,882 INFO L226 Difference]: Without dead ends: 64 [2020-09-21 11:31:53,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:31:53,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-21 11:31:53,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 48. [2020-09-21 11:31:53,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-21 11:31:53,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-09-21 11:31:53,902 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 47 [2020-09-21 11:31:53,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:31:53,904 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-09-21 11:31:53,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:31:53,905 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-09-21 11:31:53,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-21 11:31:53,906 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:31:53,906 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:31:53,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:31:53,909 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:31:53,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:31:53,910 INFO L82 PathProgramCache]: Analyzing trace with hash -292198906, now seen corresponding path program 5 times [2020-09-21 11:31:53,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:31:53,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224396245] [2020-09-21 11:31:53,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:31:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:54,009 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:54,009 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:54,009 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:54,010 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:54,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-21 11:31:54,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:54,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-21 11:31:54,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:54,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:31:54,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:31:54,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:31:54,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:54,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:31:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:54,098 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:54,098 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:54,099 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:54,099 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:54,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:31:54,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:54,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:54,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:54,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:31:54,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:54,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:31:54,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:54,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 11:31:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:54,106 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:54,106 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:54,106 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:54,106 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:54,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:54,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:54,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:54,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:54,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:54,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:54,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:54,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:54,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:31:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:54,114 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:54,114 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:54,114 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:54,115 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:54,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:54,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:54,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:54,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:54,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:54,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:54,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:54,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:54,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:31:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:54,123 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:54,123 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:54,123 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:54,123 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:54,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:54,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:54,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:54,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:54,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:54,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:54,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:54,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:54,130 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 26 proven. 18 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-21 11:31:54,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [224396245] [2020-09-21 11:31:54,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:31:54,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 11:31:54,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488157219] [2020-09-21 11:31:54,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:31:54,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:31:54,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:31:54,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:31:54,133 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 9 states. [2020-09-21 11:31:54,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:31:54,224 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2020-09-21 11:31:54,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:31:54,225 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2020-09-21 11:31:54,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:31:54,226 INFO L225 Difference]: With dead ends: 63 [2020-09-21 11:31:54,226 INFO L226 Difference]: Without dead ends: 61 [2020-09-21 11:31:54,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:31:54,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-21 11:31:54,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2020-09-21 11:31:54,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-21 11:31:54,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2020-09-21 11:31:54,236 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 49 [2020-09-21 11:31:54,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:31:54,237 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2020-09-21 11:31:54,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:31:54,237 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2020-09-21 11:31:54,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-21 11:31:54,238 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:31:54,239 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:31:54,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:31:54,239 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:31:54,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:31:54,240 INFO L82 PathProgramCache]: Analyzing trace with hash 551795688, now seen corresponding path program 6 times [2020-09-21 11:31:54,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:31:54,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [202040281] [2020-09-21 11:31:54,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:31:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:54,332 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:54,333 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:54,333 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:54,333 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:54,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 11:31:54,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:54,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-21 11:31:54,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:54,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:31:54,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:31:54,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-21 11:31:54,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:54,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:31:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:54,524 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:54,524 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:54,525 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:54,525 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:54,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:31:54,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:54,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:54,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:54,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:31:54,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:54,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:31:54,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:54,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 11:31:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:54,531 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:54,531 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:54,531 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:54,531 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:54,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:54,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:54,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:54,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:54,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:54,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:54,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:54,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:54,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:31:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:54,539 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:54,539 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:54,539 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:54,539 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:54,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:54,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:54,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:54,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:54,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:54,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:54,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:54,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:54,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:31:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:54,547 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:54,547 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:54,548 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:54,548 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:54,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:54,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:54,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:54,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:54,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:54,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:54,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:54,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:54,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:31:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:54,555 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:54,556 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:54,556 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:54,556 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:54,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:54,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:54,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:54,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:54,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:54,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:54,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:54,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:54,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:31:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:54,564 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:54,564 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:54,565 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:54,565 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:54,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:54,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:54,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:54,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:54,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:54,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:54,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:54,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:54,575 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 60 proven. 20 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-21 11:31:54,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [202040281] [2020-09-21 11:31:54,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:31:54,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-21 11:31:54,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314053648] [2020-09-21 11:31:54,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 11:31:54,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:31:54,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 11:31:54,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:31:54,578 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand 13 states. [2020-09-21 11:31:54,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:31:54,777 INFO L93 Difference]: Finished difference Result 115 states and 135 transitions. [2020-09-21 11:31:54,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:31:54,778 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 65 [2020-09-21 11:31:54,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:31:54,780 INFO L225 Difference]: With dead ends: 115 [2020-09-21 11:31:54,780 INFO L226 Difference]: Without dead ends: 82 [2020-09-21 11:31:54,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2020-09-21 11:31:54,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-21 11:31:54,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 62. [2020-09-21 11:31:54,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-21 11:31:54,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2020-09-21 11:31:54,802 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 65 [2020-09-21 11:31:54,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:31:54,803 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2020-09-21 11:31:54,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 11:31:54,803 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2020-09-21 11:31:54,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 11:31:54,804 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:31:54,804 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:31:54,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:31:54,805 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:31:54,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:31:54,805 INFO L82 PathProgramCache]: Analyzing trace with hash -150434419, now seen corresponding path program 7 times [2020-09-21 11:31:54,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:31:54,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36487107] [2020-09-21 11:31:54,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:31:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:54,920 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:54,920 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:54,920 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:54,921 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:54,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:31:54,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:54,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-21 11:31:54,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:54,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:31:54,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:31:54,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-21 11:31:54,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:55,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:31:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:55,070 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:55,070 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:55,070 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:55,071 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:55,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:31:55,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:55,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:55,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:55,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:31:55,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:55,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:31:55,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:55,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 11:31:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:55,078 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:55,079 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:55,079 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:55,079 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:55,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:55,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:55,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:31:55,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:55,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:55,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:55,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:55,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:55,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-21 11:31:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:55,087 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:55,087 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:55,087 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:55,088 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:55,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:55,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:55,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:55,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:55,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:55,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:55,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:55,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:55,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:31:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:55,094 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:55,095 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:55,095 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:55,095 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:55,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:55,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:55,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:55,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:55,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:55,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:55,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:55,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:55,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:31:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:55,102 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:55,102 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:55,103 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:55,103 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:55,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:55,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:55,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:55,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:55,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:55,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:55,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:55,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:55,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 11:31:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:55,111 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:55,111 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:55,111 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:55,112 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:55,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:55,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:55,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:55,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:55,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:55,124 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 60 proven. 30 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-21 11:31:55,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [36487107] [2020-09-21 11:31:55,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:31:55,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-21 11:31:55,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854461142] [2020-09-21 11:31:55,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-21 11:31:55,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:31:55,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-21 11:31:55,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:31:55,130 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand 14 states. [2020-09-21 11:31:55,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:31:55,400 INFO L93 Difference]: Finished difference Result 119 states and 142 transitions. [2020-09-21 11:31:55,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-21 11:31:55,401 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 67 [2020-09-21 11:31:55,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:31:55,403 INFO L225 Difference]: With dead ends: 119 [2020-09-21 11:31:55,403 INFO L226 Difference]: Without dead ends: 88 [2020-09-21 11:31:55,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2020-09-21 11:31:55,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-21 11:31:55,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 64. [2020-09-21 11:31:55,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-09-21 11:31:55,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2020-09-21 11:31:55,430 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 67 [2020-09-21 11:31:55,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:31:55,431 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2020-09-21 11:31:55,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-21 11:31:55,431 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2020-09-21 11:31:55,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-21 11:31:55,432 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:31:55,433 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:31:55,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:31:55,435 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:31:55,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:31:55,435 INFO L82 PathProgramCache]: Analyzing trace with hash -683701774, now seen corresponding path program 8 times [2020-09-21 11:31:55,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:31:55,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [624503684] [2020-09-21 11:31:55,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:31:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:55,568 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:55,568 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:55,569 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:55,569 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:55,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 11:31:55,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:55,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-21 11:31:55,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:55,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:31:55,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:31:55,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-21 11:31:55,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:55,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:31:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:55,707 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:55,707 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:55,708 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:55,708 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:55,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:31:55,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:55,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:55,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:55,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:31:55,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:31:55,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:55,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-21 11:31:55,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:55,714 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:55,714 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:55,714 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:55,714 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:55,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:55,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:55,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:55,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:55,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:55,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:55,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:55,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:55,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:31:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:55,720 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:55,720 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:55,721 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:55,721 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:55,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:55,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:55,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:55,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:55,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:55,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:55,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:55,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:55,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:31:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:55,728 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:55,728 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:55,728 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:55,729 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:55,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:55,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:55,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:55,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:55,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:55,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:55,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:55,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:55,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:31:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:55,735 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:55,736 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:55,736 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:55,736 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:55,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:55,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:55,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:55,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:55,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:55,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:55,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:55,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:55,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 11:31:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:55,743 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:55,743 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:55,744 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:55,744 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:55,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:55,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:55,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:55,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:55,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:55,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:55,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:55,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:55,754 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 52 proven. 50 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-21 11:31:55,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [624503684] [2020-09-21 11:31:55,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:31:55,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-21 11:31:55,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671533142] [2020-09-21 11:31:55,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:31:55,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:31:55,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:31:55,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:31:55,757 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand 11 states. [2020-09-21 11:31:55,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:31:55,866 INFO L93 Difference]: Finished difference Result 79 states and 85 transitions. [2020-09-21 11:31:55,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:31:55,866 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 69 [2020-09-21 11:31:55,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:31:55,868 INFO L225 Difference]: With dead ends: 79 [2020-09-21 11:31:55,868 INFO L226 Difference]: Without dead ends: 77 [2020-09-21 11:31:55,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:31:55,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-09-21 11:31:55,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2020-09-21 11:31:55,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-21 11:31:55,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 82 transitions. [2020-09-21 11:31:55,877 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 82 transitions. Word has length 69 [2020-09-21 11:31:55,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:31:55,878 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 82 transitions. [2020-09-21 11:31:55,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:31:55,878 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 82 transitions. [2020-09-21 11:31:55,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-21 11:31:55,880 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:31:55,880 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:31:55,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:31:55,881 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:31:55,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:31:55,881 INFO L82 PathProgramCache]: Analyzing trace with hash 192972756, now seen corresponding path program 9 times [2020-09-21 11:31:55,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:31:55,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049862914] [2020-09-21 11:31:55,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:31:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:56,040 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:56,040 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:56,040 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:56,041 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:56,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-21 11:31:56,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:56,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-21 11:31:56,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:56,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 11:31:56,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:31:56,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-21 11:31:56,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:56,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:31:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:56,225 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:56,225 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:56,225 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:56,225 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:56,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:31:56,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:56,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:56,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:56,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:31:56,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:56,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:31:56,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:56,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-21 11:31:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:56,230 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:56,231 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:56,231 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:56,231 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:56,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:56,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:56,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:56,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:56,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:56,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:56,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:56,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:56,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:31:56,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:56,238 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:56,238 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:56,238 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:56,238 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:56,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:56,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:56,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:56,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:56,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:56,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:56,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:56,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:56,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:31:56,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:56,248 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:56,249 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:56,249 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:56,249 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:56,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:56,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:56,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:56,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:56,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:56,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:56,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:56,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:56,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:31:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:56,256 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:56,256 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:56,256 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:56,256 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:56,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:56,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:56,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:56,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:56,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:56,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:56,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:56,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:56,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 11:31:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:56,263 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:56,263 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:56,263 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:56,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:56,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:56,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:56,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:56,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:56,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:56,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:56,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:56,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:56,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 11:31:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:56,270 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:56,270 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:56,271 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:56,271 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:56,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:56,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:56,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:56,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:56,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:56,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:56,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:56,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:56,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 11:31:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:56,277 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:56,278 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:56,278 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:56,278 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:56,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:56,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:56,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:56,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:56,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:56,289 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 112 proven. 42 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-09-21 11:31:56,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1049862914] [2020-09-21 11:31:56,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:31:56,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-21 11:31:56,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957286307] [2020-09-21 11:31:56,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-21 11:31:56,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:31:56,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-21 11:31:56,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2020-09-21 11:31:56,292 INFO L87 Difference]: Start difference. First operand 76 states and 82 transitions. Second operand 17 states. [2020-09-21 11:31:56,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:31:56,563 INFO L93 Difference]: Finished difference Result 147 states and 174 transitions. [2020-09-21 11:31:56,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 11:31:56,564 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 85 [2020-09-21 11:31:56,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:31:56,565 INFO L225 Difference]: With dead ends: 147 [2020-09-21 11:31:56,566 INFO L226 Difference]: Without dead ends: 106 [2020-09-21 11:31:56,567 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2020-09-21 11:31:56,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-09-21 11:31:56,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 78. [2020-09-21 11:31:56,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-21 11:31:56,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 84 transitions. [2020-09-21 11:31:56,576 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 84 transitions. Word has length 85 [2020-09-21 11:31:56,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:31:56,577 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 84 transitions. [2020-09-21 11:31:56,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-21 11:31:56,577 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 84 transitions. [2020-09-21 11:31:56,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-21 11:31:56,578 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:31:56,578 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:31:56,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:31:56,579 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:31:56,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:31:56,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1722356985, now seen corresponding path program 10 times [2020-09-21 11:31:56,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:31:56,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137888891] [2020-09-21 11:31:56,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:31:56,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:56,731 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:56,731 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:56,732 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:56,732 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:56,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-21 11:31:56,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:56,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-21 11:31:56,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:31:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:31:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-21 11:31:56,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:56,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:31:56,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:56,924 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:56,925 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:56,925 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:56,925 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:56,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:31:56,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:56,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:56,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:56,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:31:56,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:56,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:31:56,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:56,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-21 11:31:56,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:56,932 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:56,932 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:56,932 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:56,933 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:56,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:56,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:56,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:56,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:56,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:56,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:56,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:56,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:56,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:31:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:56,941 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:56,941 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:56,941 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:56,942 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:56,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:56,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:56,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:56,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:56,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:56,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:56,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:56,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:56,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:31:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:56,949 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:56,950 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:56,950 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:56,950 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:56,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:56,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:56,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:56,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:56,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:56,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:56,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:56,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:56,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 11:31:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:56,957 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:56,958 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:56,958 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:56,958 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:56,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:56,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:56,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:56,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:56,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:56,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:56,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:56,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:56,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:31:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:56,967 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:56,967 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:56,968 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:56,968 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:56,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:56,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:56,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:56,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:56,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:56,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:56,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:56,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:56,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-21 11:31:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:56,975 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:56,975 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:56,976 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:56,976 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:56,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:56,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:56,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:56,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:56,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:56,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:56,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:56,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:56,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:31:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:56,984 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:56,984 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:56,984 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:56,984 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:56,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:56,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:56,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:56,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:56,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:56,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:56,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:56,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:56,998 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 112 proven. 56 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-09-21 11:31:56,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137888891] [2020-09-21 11:31:56,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:31:56,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-21 11:31:56,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459553063] [2020-09-21 11:31:57,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-21 11:31:57,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:31:57,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-21 11:31:57,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2020-09-21 11:31:57,001 INFO L87 Difference]: Start difference. First operand 78 states and 84 transitions. Second operand 18 states. [2020-09-21 11:31:57,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:31:57,309 INFO L93 Difference]: Finished difference Result 151 states and 181 transitions. [2020-09-21 11:31:57,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-21 11:31:57,309 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 87 [2020-09-21 11:31:57,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:31:57,311 INFO L225 Difference]: With dead ends: 151 [2020-09-21 11:31:57,311 INFO L226 Difference]: Without dead ends: 112 [2020-09-21 11:31:57,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=205, Invalid=445, Unknown=0, NotChecked=0, Total=650 [2020-09-21 11:31:57,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-21 11:31:57,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 80. [2020-09-21 11:31:57,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-21 11:31:57,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 86 transitions. [2020-09-21 11:31:57,320 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 86 transitions. Word has length 87 [2020-09-21 11:31:57,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:31:57,320 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 86 transitions. [2020-09-21 11:31:57,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-21 11:31:57,320 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 86 transitions. [2020-09-21 11:31:57,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-21 11:31:57,321 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:31:57,321 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:31:57,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-21 11:31:57,322 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:31:57,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:31:57,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1713181474, now seen corresponding path program 11 times [2020-09-21 11:31:57,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:31:57,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [775844505] [2020-09-21 11:31:57,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:31:57,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:57,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:57,496 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:57,496 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:57,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:57,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-21 11:31:57,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:57,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-21 11:31:57,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:57,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:31:57,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:31:57,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-21 11:31:57,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:57,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:31:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:57,664 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:57,665 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:57,665 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:57,665 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:57,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:31:57,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:57,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:57,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:57,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:31:57,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:57,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:31:57,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:57,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:31:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:57,672 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:57,672 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:57,673 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:57,673 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:57,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:57,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:57,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:57,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:57,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:57,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:57,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:57,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:57,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:31:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:57,681 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:57,681 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:57,682 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:57,682 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:57,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:57,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:57,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:57,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:57,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:57,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:57,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:57,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:57,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:31:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:57,689 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:57,689 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:57,690 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:57,690 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:57,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:57,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:57,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:57,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:57,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:57,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:57,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:57,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:57,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:31:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:57,697 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:57,697 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:57,697 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:57,698 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:57,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:57,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:57,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:57,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:57,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:57,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:57,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:57,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:57,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:31:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:57,704 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:57,704 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:57,705 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:57,705 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:57,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:57,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:57,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:57,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:57,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:57,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:57,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:57,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:57,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:31:57,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:57,712 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:57,712 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:57,713 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:57,713 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:57,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:57,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:57,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:57,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:57,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:57,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:57,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:57,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:57,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 11:31:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:57,721 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:57,721 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:57,721 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:57,722 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:57,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:57,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:57,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:57,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:57,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:57,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:57,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:57,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:31:57,735 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 86 proven. 98 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-09-21 11:31:57,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [775844505] [2020-09-21 11:31:57,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:31:57,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-21 11:31:57,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255476558] [2020-09-21 11:31:57,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 11:31:57,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:31:57,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 11:31:57,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:31:57,737 INFO L87 Difference]: Start difference. First operand 80 states and 86 transitions. Second operand 13 states. [2020-09-21 11:31:57,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:31:57,860 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2020-09-21 11:31:57,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 11:31:57,861 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 89 [2020-09-21 11:31:57,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:31:57,862 INFO L225 Difference]: With dead ends: 95 [2020-09-21 11:31:57,862 INFO L226 Difference]: Without dead ends: 93 [2020-09-21 11:31:57,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:31:57,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-09-21 11:31:57,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2020-09-21 11:31:57,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-21 11:31:57,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 99 transitions. [2020-09-21 11:31:57,870 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 99 transitions. Word has length 89 [2020-09-21 11:31:57,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:31:57,871 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 99 transitions. [2020-09-21 11:31:57,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 11:31:57,871 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 99 transitions. [2020-09-21 11:31:57,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-09-21 11:31:57,872 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:31:57,872 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:31:57,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-21 11:31:57,873 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:31:57,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:31:57,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1950838080, now seen corresponding path program 12 times [2020-09-21 11:31:57,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:31:57,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1192772320] [2020-09-21 11:31:57,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:31:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:58,082 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:58,082 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:58,082 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:58,083 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:58,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-21 11:31:58,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:58,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-09-21 11:31:58,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:58,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-21 11:31:58,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:31:58,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-21 11:31:58,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:58,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:31:58,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:58,346 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:58,346 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:58,346 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:58,346 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:58,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:31:58,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:58,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:58,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:58,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:31:58,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:58,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:31:58,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:58,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:31:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:58,352 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:58,353 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:58,353 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:58,353 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:58,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:58,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:58,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:58,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:58,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:58,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:58,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:58,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:58,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:31:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:58,361 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:58,362 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:58,362 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:58,362 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:58,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:58,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:58,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:58,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:58,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:58,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:58,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:58,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:58,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:31:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:58,369 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:58,369 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:58,369 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:58,369 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:58,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:58,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:58,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:58,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:58,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:58,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:58,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:58,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:58,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:31:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:58,376 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:58,377 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:58,377 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:58,377 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:58,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:58,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:58,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:58,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:58,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:58,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:58,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:58,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:58,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:31:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:58,384 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:58,384 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:58,384 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:58,384 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:58,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:58,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:58,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:58,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:58,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:58,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:58,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:58,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:58,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:31:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:58,390 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:58,391 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:58,391 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:58,391 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:58,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:58,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:58,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:58,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:58,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:58,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:58,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:58,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:58,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 11:31:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:58,397 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:58,398 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:58,398 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:58,398 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:58,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:58,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:58,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:58,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:58,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:58,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:58,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:58,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:58,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-21 11:31:58,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:58,407 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:58,407 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:58,408 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:58,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:58,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:58,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:58,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:31:58,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:58,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:58,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:58,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:58,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:58,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-09-21 11:31:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:58,419 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:58,419 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:58,419 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:58,419 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:58,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:58,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:58,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:58,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:58,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:58,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:58,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:58,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:58,441 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 180 proven. 72 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-09-21 11:31:58,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1192772320] [2020-09-21 11:31:58,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:31:58,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-21 11:31:58,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982272951] [2020-09-21 11:31:58,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-21 11:31:58,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:31:58,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-21 11:31:58,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-09-21 11:31:58,444 INFO L87 Difference]: Start difference. First operand 92 states and 99 transitions. Second operand 21 states. [2020-09-21 11:31:58,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:31:58,811 INFO L93 Difference]: Finished difference Result 179 states and 213 transitions. [2020-09-21 11:31:58,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-21 11:31:58,816 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 105 [2020-09-21 11:31:58,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:31:58,818 INFO L225 Difference]: With dead ends: 179 [2020-09-21 11:31:58,818 INFO L226 Difference]: Without dead ends: 130 [2020-09-21 11:31:58,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=606, Unknown=0, NotChecked=0, Total=870 [2020-09-21 11:31:58,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-09-21 11:31:58,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 94. [2020-09-21 11:31:58,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-21 11:31:58,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 101 transitions. [2020-09-21 11:31:58,827 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 101 transitions. Word has length 105 [2020-09-21 11:31:58,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:31:58,827 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 101 transitions. [2020-09-21 11:31:58,827 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-21 11:31:58,827 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 101 transitions. [2020-09-21 11:31:58,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-21 11:31:58,828 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:31:58,828 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:31:58,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-21 11:31:58,829 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:31:58,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:31:58,829 INFO L82 PathProgramCache]: Analyzing trace with hash -734782619, now seen corresponding path program 13 times [2020-09-21 11:31:58,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:31:58,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603526302] [2020-09-21 11:31:58,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:31:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:59,047 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:59,048 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:59,048 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:59,048 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:59,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-21 11:31:59,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:59,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-21 11:31:59,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:59,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:31:59,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:31:59,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-21 11:31:59,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:59,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:31:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:59,333 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:59,333 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:59,333 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:59,334 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:59,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:31:59,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:59,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:59,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:59,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:31:59,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:59,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:31:59,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:59,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-21 11:31:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:59,340 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:59,341 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:59,341 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:59,341 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:59,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:59,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:59,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:31:59,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:59,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:59,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:59,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:59,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:59,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:31:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:59,349 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:59,350 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:59,350 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:59,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:59,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:59,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:59,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:59,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:59,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:59,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:59,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:59,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:59,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:31:59,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:59,357 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:59,357 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:59,357 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:59,357 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:59,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:59,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:59,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:59,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:59,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:59,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:59,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:59,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:59,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 11:31:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:59,363 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:59,363 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:59,364 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:59,364 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:59,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:59,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:59,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:59,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:59,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:59,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:59,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:59,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:59,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-21 11:31:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:59,370 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:59,370 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:59,371 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:59,371 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:59,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:59,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:59,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:59,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:59,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:59,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:59,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:59,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:59,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:31:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:59,377 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:59,377 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:59,377 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:59,378 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:59,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:59,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:59,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:59,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:59,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:59,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:59,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:59,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:59,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-21 11:31:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:59,385 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:59,385 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:59,386 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:59,386 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:59,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:59,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:59,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:59,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:59,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:59,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:59,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:59,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:59,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-21 11:31:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:59,392 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:59,392 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:59,392 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:59,392 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:59,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:59,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:59,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:59,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:59,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:59,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:59,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:59,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:59,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-21 11:31:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:31:59,398 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:31:59,399 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:31:59,399 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:31:59,399 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:31:59,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:31:59,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:31:59,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:31:59,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:31:59,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:31:59,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:31:59,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:31:59,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:31:59,414 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 180 proven. 90 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-09-21 11:31:59,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [603526302] [2020-09-21 11:31:59,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:31:59,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-09-21 11:31:59,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808468887] [2020-09-21 11:31:59,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-21 11:31:59,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:31:59,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-21 11:31:59,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-09-21 11:31:59,418 INFO L87 Difference]: Start difference. First operand 94 states and 101 transitions. Second operand 22 states. [2020-09-21 11:31:59,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:31:59,852 INFO L93 Difference]: Finished difference Result 183 states and 220 transitions. [2020-09-21 11:31:59,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 11:31:59,852 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 107 [2020-09-21 11:31:59,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:31:59,854 INFO L225 Difference]: With dead ends: 183 [2020-09-21 11:31:59,854 INFO L226 Difference]: Without dead ends: 136 [2020-09-21 11:31:59,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2020-09-21 11:31:59,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-09-21 11:31:59,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 96. [2020-09-21 11:31:59,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-09-21 11:31:59,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 103 transitions. [2020-09-21 11:31:59,863 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 103 transitions. Word has length 107 [2020-09-21 11:31:59,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:31:59,864 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 103 transitions. [2020-09-21 11:31:59,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-21 11:31:59,864 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 103 transitions. [2020-09-21 11:31:59,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-09-21 11:31:59,865 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:31:59,865 INFO L422 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:31:59,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-21 11:31:59,866 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:31:59,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:31:59,866 INFO L82 PathProgramCache]: Analyzing trace with hash -336589110, now seen corresponding path program 14 times [2020-09-21 11:31:59,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:31:59,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [262565492] [2020-09-21 11:31:59,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:31:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:00,102 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:00,102 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:00,102 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:00,102 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:00,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-21 11:32:00,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:00,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-21 11:32:00,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:00,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:32:00,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:32:00,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-21 11:32:00,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:00,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:00,249 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:00,249 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:00,249 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:00,250 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:00,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:32:00,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:00,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:00,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:00,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:00,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:00,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:00,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:00,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:32:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:00,255 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:00,256 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:00,256 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:00,256 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:00,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:00,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:00,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:00,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:00,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:00,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:00,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:00,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:00,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:32:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:00,262 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:00,262 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:00,262 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:00,262 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:00,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:00,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:00,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:00,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:00,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:00,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:00,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:00,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:00,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:32:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:00,267 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:00,268 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:00,268 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:00,268 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:00,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:00,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:00,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:00,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:00,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:00,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:00,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:00,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:00,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 11:32:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:00,273 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:00,273 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:00,273 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:00,274 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:00,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:00,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:00,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:00,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:00,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:00,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:00,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:00,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:00,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 11:32:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:00,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:00,279 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:00,279 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:00,279 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:00,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:00,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:00,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:00,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:00,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:00,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:00,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:00,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:00,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 11:32:00,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:00,285 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:00,285 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:00,286 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:00,286 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:00,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:00,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:00,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:00,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:00,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:00,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:00,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:00,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:00,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-21 11:32:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:00,291 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:00,291 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:00,291 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:00,291 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:00,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:00,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:00,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:00,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:00,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:00,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:00,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:00,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:00,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-21 11:32:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:00,298 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:00,298 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:00,298 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:00,298 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:00,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:00,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:00,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:00,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:00,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:00,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:00,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:00,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:00,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-09-21 11:32:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:00,305 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:00,305 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:00,306 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:00,306 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:00,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:00,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:00,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:00,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:00,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:00,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:00,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:00,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:00,322 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 128 proven. 162 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-09-21 11:32:00,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [262565492] [2020-09-21 11:32:00,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:32:00,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-21 11:32:00,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029323421] [2020-09-21 11:32:00,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-21 11:32:00,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:00,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-21 11:32:00,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:32:00,325 INFO L87 Difference]: Start difference. First operand 96 states and 103 transitions. Second operand 15 states. [2020-09-21 11:32:00,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:00,452 INFO L93 Difference]: Finished difference Result 111 states and 119 transitions. [2020-09-21 11:32:00,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 11:32:00,452 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 109 [2020-09-21 11:32:00,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:00,454 INFO L225 Difference]: With dead ends: 111 [2020-09-21 11:32:00,454 INFO L226 Difference]: Without dead ends: 109 [2020-09-21 11:32:00,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2020-09-21 11:32:00,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-21 11:32:00,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2020-09-21 11:32:00,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-09-21 11:32:00,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 116 transitions. [2020-09-21 11:32:00,463 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 116 transitions. Word has length 109 [2020-09-21 11:32:00,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:00,463 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 116 transitions. [2020-09-21 11:32:00,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-21 11:32:00,463 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 116 transitions. [2020-09-21 11:32:00,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-09-21 11:32:00,465 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:00,465 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:00,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-21 11:32:00,465 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:00,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:00,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1711037612, now seen corresponding path program 15 times [2020-09-21 11:32:00,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:00,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456877223] [2020-09-21 11:32:00,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:00,735 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:00,735 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:00,735 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:00,736 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:00,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-21 11:32:00,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:00,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-21 11:32:00,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:00,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-21 11:32:00,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:32:00,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-21 11:32:00,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:01,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:01,069 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:01,070 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:01,070 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:01,070 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:01,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:32:01,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:01,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:01,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:01,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:01,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:01,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:01,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:01,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:32:01,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:01,076 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:01,077 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:01,077 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:01,077 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:01,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:01,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:01,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:32:01,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:01,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:01,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:01,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:01,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:01,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:32:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:01,085 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:01,085 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:01,085 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:01,086 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:01,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:01,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:01,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:01,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:01,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:01,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:01,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:01,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:01,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:32:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:01,093 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:01,093 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:01,094 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:01,094 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:01,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:01,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:01,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:01,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:01,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:01,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:01,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:01,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:01,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 11:32:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:01,101 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:01,102 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:01,102 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:01,102 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:01,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:01,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:01,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:01,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:01,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:01,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:01,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:01,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:01,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 11:32:01,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:01,108 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:01,108 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:01,109 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:01,109 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:01,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:01,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:01,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:01,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:01,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:01,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:01,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:01,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:01,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 11:32:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:01,115 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:01,115 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:01,115 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:01,115 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:01,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:01,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:01,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:01,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:01,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:01,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:01,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:01,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:01,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-21 11:32:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:01,122 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:01,122 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:01,122 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:01,123 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:01,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:01,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:01,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:01,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:01,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:01,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:01,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:01,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:01,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-21 11:32:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:01,131 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:01,132 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:01,132 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:01,133 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:01,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:01,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:01,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:32:01,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:01,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:01,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:01,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:01,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:01,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-09-21 11:32:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:01,148 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:01,149 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:01,149 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:01,149 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:01,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:01,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:01,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:32:01,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:01,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:01,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:01,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:01,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:01,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 11:32:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:01,156 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:01,156 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:01,156 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:01,156 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:01,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:01,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:01,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:01,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:01,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:01,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:01,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:01,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:01,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-09-21 11:32:01,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:01,165 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:01,165 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:01,166 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:01,166 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:01,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:01,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:01,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:01,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:01,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:01,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:01,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:01,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:01,197 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 264 proven. 110 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-09-21 11:32:01,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456877223] [2020-09-21 11:32:01,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:32:01,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-21 11:32:01,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067306807] [2020-09-21 11:32:01,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-21 11:32:01,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:01,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-21 11:32:01,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-09-21 11:32:01,209 INFO L87 Difference]: Start difference. First operand 108 states and 116 transitions. Second operand 25 states. [2020-09-21 11:32:01,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:01,671 INFO L93 Difference]: Finished difference Result 211 states and 252 transitions. [2020-09-21 11:32:01,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-21 11:32:01,672 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 125 [2020-09-21 11:32:01,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:01,673 INFO L225 Difference]: With dead ends: 211 [2020-09-21 11:32:01,673 INFO L226 Difference]: Without dead ends: 154 [2020-09-21 11:32:01,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=377, Invalid=883, Unknown=0, NotChecked=0, Total=1260 [2020-09-21 11:32:01,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-09-21 11:32:01,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 110. [2020-09-21 11:32:01,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-09-21 11:32:01,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 118 transitions. [2020-09-21 11:32:01,684 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 118 transitions. Word has length 125 [2020-09-21 11:32:01,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:01,684 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 118 transitions. [2020-09-21 11:32:01,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-21 11:32:01,684 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 118 transitions. [2020-09-21 11:32:01,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-09-21 11:32:01,688 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:01,688 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:01,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-21 11:32:01,689 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:01,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:01,689 INFO L82 PathProgramCache]: Analyzing trace with hash 66724049, now seen corresponding path program 16 times [2020-09-21 11:32:01,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:01,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [842938511] [2020-09-21 11:32:01,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:01,975 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:01,975 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:01,976 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:01,976 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:01,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-09-21 11:32:01,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:01,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-21 11:32:01,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:01,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:32:01,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:32:01,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-21 11:32:01,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:02,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:02,376 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:02,377 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:02,377 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:02,377 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:02,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:32:02,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:02,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:02,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:02,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:02,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:02,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:02,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:02,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:32:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:02,382 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:02,382 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:02,383 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:02,383 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:02,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:02,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:02,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:02,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:02,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:02,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:02,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:02,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:02,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:32:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:02,390 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:02,390 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:02,390 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:02,391 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:02,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:02,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:02,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:32:02,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:02,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:02,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:02,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:02,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:02,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 11:32:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:02,399 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:02,399 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:02,400 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:02,400 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:02,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:02,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:02,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:32:02,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:02,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:02,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:02,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:02,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:02,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:32:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:02,424 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:02,424 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:02,424 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:02,425 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:02,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:02,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:02,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:32:02,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:02,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:02,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:02,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:02,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:02,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-21 11:32:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:02,435 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:02,436 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:02,436 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:02,437 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:02,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:02,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:02,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:32:02,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:02,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:02,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:02,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:02,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:02,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:32:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:02,445 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:02,445 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:02,446 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:02,446 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:02,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:02,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:02,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:32:02,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:02,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:02,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:02,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:02,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:02,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-21 11:32:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:02,456 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:02,456 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:02,456 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:02,456 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:02,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:02,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:02,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:02,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:02,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:02,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:02,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:02,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:02,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 11:32:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:02,466 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:02,466 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:02,466 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:02,467 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:02,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:02,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:02,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:32:02,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:02,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:02,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:02,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:02,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:02,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-21 11:32:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:02,474 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:02,474 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:02,475 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:02,475 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:02,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:02,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:02,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:02,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:02,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:02,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:02,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:02,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:02,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-21 11:32:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:02,483 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:02,483 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:02,483 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:02,484 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:02,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:02,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:02,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:02,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:02,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:02,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:02,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:02,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:02,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-21 11:32:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:02,491 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:02,492 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:02,492 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:02,492 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:02,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:02,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:02,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:32:02,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:02,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:02,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:02,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:02,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:02,532 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 264 proven. 132 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-09-21 11:32:02,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [842938511] [2020-09-21 11:32:02,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:32:02,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-09-21 11:32:02,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696998980] [2020-09-21 11:32:02,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-09-21 11:32:02,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:02,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-09-21 11:32:02,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=469, Unknown=0, NotChecked=0, Total=650 [2020-09-21 11:32:02,536 INFO L87 Difference]: Start difference. First operand 110 states and 118 transitions. Second operand 26 states. [2020-09-21 11:32:03,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:03,194 INFO L93 Difference]: Finished difference Result 215 states and 259 transitions. [2020-09-21 11:32:03,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-21 11:32:03,194 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 127 [2020-09-21 11:32:03,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:03,198 INFO L225 Difference]: With dead ends: 215 [2020-09-21 11:32:03,198 INFO L226 Difference]: Without dead ends: 160 [2020-09-21 11:32:03,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=427, Invalid=979, Unknown=0, NotChecked=0, Total=1406 [2020-09-21 11:32:03,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-09-21 11:32:03,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 112. [2020-09-21 11:32:03,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-21 11:32:03,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 120 transitions. [2020-09-21 11:32:03,214 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 120 transitions. Word has length 127 [2020-09-21 11:32:03,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:03,215 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 120 transitions. [2020-09-21 11:32:03,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-09-21 11:32:03,215 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 120 transitions. [2020-09-21 11:32:03,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-09-21 11:32:03,218 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:03,218 INFO L422 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:03,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-21 11:32:03,219 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:03,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:03,220 INFO L82 PathProgramCache]: Analyzing trace with hash 429354934, now seen corresponding path program 17 times [2020-09-21 11:32:03,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:03,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506396242] [2020-09-21 11:32:03,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:03,635 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:03,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:03,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:03,636 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:03,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-09-21 11:32:03,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:03,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-09-21 11:32:03,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:03,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:32:03,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:32:03,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-09-21 11:32:03,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:03,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:03,837 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:03,837 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:03,838 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:03,838 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:03,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:32:03,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:03,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:03,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:03,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:03,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:03,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:03,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:03,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:32:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:03,845 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:03,845 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:03,846 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:03,846 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:03,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:03,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:03,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:03,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:03,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:03,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:03,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:32:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:03,853 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:03,853 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:03,853 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:03,854 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:03,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:03,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:03,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:03,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:03,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:03,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:03,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:03,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:03,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:32:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:03,859 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:03,860 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:03,860 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:03,860 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:03,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:03,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:03,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:03,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:03,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:03,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:03,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:03,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:03,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:32:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:03,867 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:03,867 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:03,868 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:03,868 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:03,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:03,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:03,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:03,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:03,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:03,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:03,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:03,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:03,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:32:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:03,875 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:03,875 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:03,875 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:03,876 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:03,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:03,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:03,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:03,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:03,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:03,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:03,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:03,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:03,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 11:32:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:03,882 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:03,882 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:03,883 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:03,883 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:03,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:03,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:03,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:03,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:03,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:03,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:03,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:03,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:03,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-21 11:32:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:03,889 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:03,889 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:03,889 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:03,889 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:03,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:03,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:03,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:03,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:03,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:03,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:03,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:03,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:03,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-09-21 11:32:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:03,896 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:03,896 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:03,896 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:03,897 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:03,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:03,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:03,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:03,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:03,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:03,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:03,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:03,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:03,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-21 11:32:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:03,903 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:03,903 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:03,903 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:03,904 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:03,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:03,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:03,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:03,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:03,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:03,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:03,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:03,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:03,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-21 11:32:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:03,911 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:03,911 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:03,912 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:03,912 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:03,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:03,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:03,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:03,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:03,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:03,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:03,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:03,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:03,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-21 11:32:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:03,919 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:03,920 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:03,920 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:03,920 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:03,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:03,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:03,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:03,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:03,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:03,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:03,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:03,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:03,946 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 178 proven. 242 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-09-21 11:32:03,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506396242] [2020-09-21 11:32:03,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:32:03,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-21 11:32:03,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59397731] [2020-09-21 11:32:03,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-21 11:32:03,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:03,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-21 11:32:03,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=163, Unknown=0, NotChecked=0, Total=272 [2020-09-21 11:32:03,950 INFO L87 Difference]: Start difference. First operand 112 states and 120 transitions. Second operand 17 states. [2020-09-21 11:32:04,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:04,119 INFO L93 Difference]: Finished difference Result 127 states and 136 transitions. [2020-09-21 11:32:04,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 11:32:04,119 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 129 [2020-09-21 11:32:04,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:04,121 INFO L225 Difference]: With dead ends: 127 [2020-09-21 11:32:04,121 INFO L226 Difference]: Without dead ends: 125 [2020-09-21 11:32:04,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=193, Unknown=0, NotChecked=0, Total=306 [2020-09-21 11:32:04,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-09-21 11:32:04,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 124. [2020-09-21 11:32:04,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-09-21 11:32:04,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 133 transitions. [2020-09-21 11:32:04,131 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 133 transitions. Word has length 129 [2020-09-21 11:32:04,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:04,131 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 133 transitions. [2020-09-21 11:32:04,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-21 11:32:04,132 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 133 transitions. [2020-09-21 11:32:04,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-09-21 11:32:04,133 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:04,133 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:04,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-21 11:32:04,135 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:04,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:04,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1971086744, now seen corresponding path program 18 times [2020-09-21 11:32:04,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:04,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1568310397] [2020-09-21 11:32:04,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:04,497 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:04,497 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:04,497 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:04,498 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:04,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-09-21 11:32:04,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:04,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-09-21 11:32:04,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:04,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-21 11:32:04,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:32:04,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-21 11:32:04,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:04,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:05,000 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:05,000 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:05,001 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:05,001 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:05,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:32:05,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:05,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:05,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:05,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:05,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:05,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:05,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:05,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:32:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:05,007 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:05,007 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:05,007 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:05,008 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:05,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:05,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:05,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:05,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:05,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:05,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:05,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:05,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:05,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:32:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:05,014 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:05,014 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:05,014 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:05,015 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:05,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:05,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:05,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:05,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:05,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:05,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:05,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:05,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:05,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:32:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:05,021 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:05,021 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:05,022 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:05,022 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:05,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:05,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:05,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:05,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:05,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:05,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:05,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:05,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:05,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:32:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:05,027 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:05,027 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:05,028 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:05,028 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:05,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:05,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:05,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:05,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:05,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:05,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:05,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:05,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:05,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:32:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:05,033 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:05,033 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:05,034 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:05,034 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:05,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:05,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:05,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:05,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:05,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:05,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:05,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:05,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:05,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 11:32:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:05,039 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:05,039 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:05,039 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:05,039 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:05,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:05,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:05,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:05,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:05,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:05,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:05,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:05,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:05,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-21 11:32:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:05,044 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:05,045 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:05,045 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:05,045 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:05,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:05,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:05,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:05,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:05,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:05,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:05,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:05,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:05,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-09-21 11:32:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:05,050 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:05,051 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:05,051 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:05,051 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:05,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:05,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:05,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:05,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:05,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:05,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:05,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:05,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:05,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-21 11:32:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:05,057 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:05,057 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:05,057 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:05,058 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:05,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:05,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:05,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:05,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:05,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:05,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:05,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:05,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:05,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-21 11:32:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:05,063 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:05,064 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:05,064 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:05,064 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:05,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:05,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:05,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:05,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:05,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:05,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:05,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-21 11:32:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:05,070 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:05,070 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:05,071 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:05,071 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:05,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:05,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:05,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:05,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:05,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:05,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:05,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:05,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:05,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-21 11:32:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:05,077 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:05,077 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:05,078 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:05,078 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:05,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:05,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:05,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:05,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:05,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:05,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:05,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:05,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:05,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-21 11:32:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:05,083 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:05,084 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:05,084 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:05,084 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:05,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:05,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:05,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:05,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:05,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:05,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:05,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:05,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:05,114 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 364 proven. 156 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-09-21 11:32:05,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1568310397] [2020-09-21 11:32:05,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:32:05,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-09-21 11:32:05,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349370585] [2020-09-21 11:32:05,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-09-21 11:32:05,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:05,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-09-21 11:32:05,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2020-09-21 11:32:05,118 INFO L87 Difference]: Start difference. First operand 124 states and 133 transitions. Second operand 29 states. [2020-09-21 11:32:05,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:05,718 INFO L93 Difference]: Finished difference Result 243 states and 291 transitions. [2020-09-21 11:32:05,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-21 11:32:05,719 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 145 [2020-09-21 11:32:05,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:05,720 INFO L225 Difference]: With dead ends: 243 [2020-09-21 11:32:05,720 INFO L226 Difference]: Without dead ends: 178 [2020-09-21 11:32:05,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=510, Invalid=1212, Unknown=0, NotChecked=0, Total=1722 [2020-09-21 11:32:05,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-21 11:32:05,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 126. [2020-09-21 11:32:05,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-21 11:32:05,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 135 transitions. [2020-09-21 11:32:05,734 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 135 transitions. Word has length 145 [2020-09-21 11:32:05,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:05,734 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 135 transitions. [2020-09-21 11:32:05,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-09-21 11:32:05,734 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 135 transitions. [2020-09-21 11:32:05,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-09-21 11:32:05,736 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:05,736 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:05,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-21 11:32:05,736 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:05,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:05,737 INFO L82 PathProgramCache]: Analyzing trace with hash 554411325, now seen corresponding path program 19 times [2020-09-21 11:32:05,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:05,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265281601] [2020-09-21 11:32:05,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:06,122 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:06,122 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:06,122 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:06,122 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:06,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-21 11:32:06,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:06,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 333 [2020-09-21 11:32:06,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:06,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:32:06,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:32:06,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-09-21 11:32:06,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:06,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:06,709 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:06,709 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:06,710 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:06,710 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:06,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:32:06,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:06,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:06,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:06,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:06,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:06,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:06,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:06,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:32:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:06,715 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:06,715 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:06,715 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:06,716 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:06,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:06,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:06,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:06,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:06,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:06,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:06,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:06,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:06,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:32:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:06,722 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:06,722 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:06,723 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:06,723 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:06,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:06,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:06,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:06,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:06,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:06,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:06,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:06,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:06,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 11:32:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:06,728 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:06,729 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:06,729 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:06,729 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:06,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:06,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:06,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:06,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:06,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:06,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:06,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:06,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:06,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-21 11:32:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:06,735 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:06,735 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:06,735 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:06,735 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:06,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:06,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:06,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:06,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:06,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:06,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:06,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:06,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:06,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:32:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:06,741 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:06,741 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:06,741 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:06,741 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:06,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:06,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:06,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:06,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:06,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:06,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:06,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:06,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:06,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-21 11:32:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:06,747 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:06,748 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:06,748 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:06,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:06,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:06,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:06,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:06,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:06,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:06,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:06,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:06,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:06,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-21 11:32:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:06,754 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:06,754 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:06,754 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:06,754 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:06,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:06,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:06,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:06,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:06,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:06,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:06,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:06,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:06,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-21 11:32:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:06,760 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:06,760 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:06,761 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:06,761 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:06,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:06,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:06,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:06,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:06,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:06,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:06,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:06,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:06,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-21 11:32:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:06,767 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:06,767 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:06,767 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:06,768 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:06,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:06,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:06,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:06,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:06,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:06,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:06,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:06,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:06,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-21 11:32:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:06,775 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:06,775 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:06,775 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:06,775 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:06,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:06,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:06,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:06,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:06,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:06,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:06,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:06,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:06,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-09-21 11:32:06,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:06,782 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:06,782 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:06,782 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:06,782 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:06,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:06,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:06,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:06,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:06,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:06,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:06,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:06,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:06,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-21 11:32:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:06,788 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:06,788 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:06,788 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:06,789 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:06,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:06,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:06,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:06,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:06,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:06,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:06,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:06,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:06,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-21 11:32:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:06,798 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:06,798 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:06,798 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:06,799 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:06,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:06,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:06,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:06,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:06,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:06,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:06,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:06,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:06,827 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 364 proven. 182 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-09-21 11:32:06,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265281601] [2020-09-21 11:32:06,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:32:06,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-09-21 11:32:06,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610977187] [2020-09-21 11:32:06,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-09-21 11:32:06,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:06,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-09-21 11:32:06,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2020-09-21 11:32:06,832 INFO L87 Difference]: Start difference. First operand 126 states and 135 transitions. Second operand 30 states. [2020-09-21 11:32:07,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:07,560 INFO L93 Difference]: Finished difference Result 247 states and 298 transitions. [2020-09-21 11:32:07,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-21 11:32:07,560 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 147 [2020-09-21 11:32:07,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:07,562 INFO L225 Difference]: With dead ends: 247 [2020-09-21 11:32:07,562 INFO L226 Difference]: Without dead ends: 184 [2020-09-21 11:32:07,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=568, Invalid=1324, Unknown=0, NotChecked=0, Total=1892 [2020-09-21 11:32:07,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-09-21 11:32:07,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 128. [2020-09-21 11:32:07,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-21 11:32:07,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 137 transitions. [2020-09-21 11:32:07,573 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 137 transitions. Word has length 147 [2020-09-21 11:32:07,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:07,574 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 137 transitions. [2020-09-21 11:32:07,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-09-21 11:32:07,574 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 137 transitions. [2020-09-21 11:32:07,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-21 11:32:07,576 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:07,576 INFO L422 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:07,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-09-21 11:32:07,576 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:07,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:07,577 INFO L82 PathProgramCache]: Analyzing trace with hash 633966498, now seen corresponding path program 20 times [2020-09-21 11:32:07,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:07,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1598420512] [2020-09-21 11:32:07,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:08,042 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:08,042 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:08,042 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:08,043 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:08,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-09-21 11:32:08,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:08,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-09-21 11:32:08,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:08,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:32:08,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:32:08,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-09-21 11:32:08,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:08,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:08,306 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:08,306 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:08,306 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:08,306 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:08,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:32:08,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:08,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:08,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:08,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:08,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:08,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:08,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:08,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:32:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:08,318 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:08,318 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:08,318 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:08,318 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:08,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:08,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:08,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:08,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:08,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:08,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:08,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:08,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:32:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:08,328 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:08,328 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:08,329 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:08,329 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:08,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:08,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:08,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:08,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:08,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:08,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:08,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:08,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:08,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 11:32:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:08,335 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:08,335 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:08,336 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:08,336 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:08,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:08,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:08,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:08,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:08,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:08,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 11:32:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:08,342 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:08,342 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:08,342 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:08,342 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:08,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:08,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:08,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:08,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:08,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:08,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:08,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:08,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:08,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 11:32:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:08,349 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:08,349 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:08,349 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:08,349 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:08,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:08,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:08,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:08,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:08,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:08,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:08,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:08,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:08,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-21 11:32:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:08,355 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:08,355 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:08,356 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:08,356 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:08,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:08,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:08,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:08,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:08,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:08,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-21 11:32:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:08,362 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:08,362 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:08,362 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:08,362 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:08,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:08,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:08,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:08,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:08,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:08,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:08,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-09-21 11:32:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:08,368 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:08,369 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:08,369 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:08,369 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:08,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:08,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:08,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:08,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:08,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:08,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:08,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:08,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:08,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 11:32:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:08,377 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:08,377 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:08,377 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:08,378 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:08,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:08,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:08,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:08,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:08,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:08,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:08,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:08,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:08,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-09-21 11:32:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:08,384 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:08,384 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:08,385 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:08,385 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:08,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:08,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:08,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:08,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:08,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:08,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:08,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:08,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:08,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-21 11:32:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:08,392 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:08,392 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:08,392 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:08,392 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:08,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:08,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:08,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:08,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:08,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:08,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:08,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-21 11:32:08,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:08,402 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:08,403 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:08,403 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:08,403 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:08,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:08,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:08,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:32:08,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:08,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:08,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:08,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:08,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:08,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-21 11:32:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:08,409 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:08,409 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:08,410 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:08,410 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:08,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:08,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:08,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:08,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:08,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:08,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:08,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:08,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:08,438 INFO L134 CoverageAnalysis]: Checked inductivity of 886 backedges. 236 proven. 338 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-09-21 11:32:08,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1598420512] [2020-09-21 11:32:08,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:32:08,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-21 11:32:08,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430096968] [2020-09-21 11:32:08,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-21 11:32:08,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:08,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-21 11:32:08,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=202, Unknown=0, NotChecked=0, Total=342 [2020-09-21 11:32:08,449 INFO L87 Difference]: Start difference. First operand 128 states and 137 transitions. Second operand 19 states. [2020-09-21 11:32:08,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:08,621 INFO L93 Difference]: Finished difference Result 143 states and 153 transitions. [2020-09-21 11:32:08,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-21 11:32:08,622 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 149 [2020-09-21 11:32:08,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:08,623 INFO L225 Difference]: With dead ends: 143 [2020-09-21 11:32:08,623 INFO L226 Difference]: Without dead ends: 141 [2020-09-21 11:32:08,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=236, Unknown=0, NotChecked=0, Total=380 [2020-09-21 11:32:08,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-09-21 11:32:08,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 140. [2020-09-21 11:32:08,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-21 11:32:08,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 150 transitions. [2020-09-21 11:32:08,634 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 150 transitions. Word has length 149 [2020-09-21 11:32:08,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:08,634 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 150 transitions. [2020-09-21 11:32:08,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-21 11:32:08,634 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 150 transitions. [2020-09-21 11:32:08,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-21 11:32:08,637 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:08,637 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:08,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-09-21 11:32:08,637 INFO L427 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:08,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:08,638 INFO L82 PathProgramCache]: Analyzing trace with hash -869716604, now seen corresponding path program 21 times [2020-09-21 11:32:08,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:08,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520630558] [2020-09-21 11:32:08,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:09,104 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:09,104 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:09,105 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:09,105 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:09,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-09-21 11:32:09,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:09,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-09-21 11:32:09,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:09,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-21 11:32:09,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:32:09,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-09-21 11:32:09,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:09,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:09,704 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:09,705 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:09,705 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:09,705 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:09,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:32:09,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:09,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:09,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:09,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:09,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:09,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:09,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:09,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:32:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:09,710 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:09,710 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:09,711 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:09,711 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:09,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:09,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:09,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:09,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:09,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:09,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:09,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:09,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:09,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:32:09,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:09,716 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:09,716 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:09,717 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:09,717 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:09,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:09,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:09,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:09,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:09,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:09,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:09,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:09,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:09,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 11:32:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:09,723 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:09,723 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:09,724 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:09,724 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:09,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:09,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:09,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:09,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:09,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:09,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:09,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:09,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:09,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 11:32:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:09,730 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:09,731 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:09,731 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:09,731 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:09,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:09,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:09,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:09,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:09,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:09,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:09,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 11:32:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:09,738 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:09,738 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:09,738 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:09,738 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:09,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:09,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:09,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:09,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:09,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:09,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:09,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:09,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:09,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-21 11:32:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:09,747 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:09,747 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:09,747 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:09,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:09,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:09,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:09,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:09,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:09,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:09,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:09,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:09,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:09,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-21 11:32:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:09,754 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:09,755 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:09,755 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:09,755 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:09,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:09,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:09,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:09,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:09,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:09,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:09,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:09,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:09,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-09-21 11:32:09,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:09,762 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:09,762 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:09,762 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:09,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:09,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:09,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:09,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:09,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:09,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:09,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:09,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:09,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:09,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 11:32:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:09,786 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:09,786 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:09,786 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:09,787 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:09,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:09,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:09,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:09,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:09,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:09,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:09,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:09,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:09,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-09-21 11:32:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:09,792 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:09,792 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:09,792 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:09,793 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:09,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:09,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:09,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:09,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:09,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:09,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:09,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:09,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:09,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-21 11:32:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:09,798 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:09,798 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:09,799 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:09,799 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:09,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:09,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:09,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:09,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:09,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:09,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:09,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:09,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:09,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-21 11:32:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:09,804 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:09,804 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:09,804 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:09,805 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:09,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:09,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:09,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:09,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:09,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:09,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:09,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:09,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:09,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-21 11:32:09,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:09,810 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:09,810 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:09,811 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:09,811 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:09,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:09,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:09,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:09,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:09,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:09,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:09,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:09,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:09,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-21 11:32:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:09,816 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:09,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:09,816 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:09,817 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:09,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:09,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:09,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:09,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:09,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:09,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:09,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:09,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:09,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-21 11:32:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:09,822 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:09,822 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:09,822 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:09,822 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:09,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:09,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:09,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:09,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:09,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:09,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:09,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:09,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:09,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1110 backedges. 480 proven. 210 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-09-21 11:32:09,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520630558] [2020-09-21 11:32:09,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:32:09,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-09-21 11:32:09,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349050240] [2020-09-21 11:32:09,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-09-21 11:32:09,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:09,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-09-21 11:32:09,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2020-09-21 11:32:09,858 INFO L87 Difference]: Start difference. First operand 140 states and 150 transitions. Second operand 33 states. [2020-09-21 11:32:10,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:10,589 INFO L93 Difference]: Finished difference Result 275 states and 330 transitions. [2020-09-21 11:32:10,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-21 11:32:10,591 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 165 [2020-09-21 11:32:10,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:10,593 INFO L225 Difference]: With dead ends: 275 [2020-09-21 11:32:10,594 INFO L226 Difference]: Without dead ends: 202 [2020-09-21 11:32:10,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=663, Invalid=1593, Unknown=0, NotChecked=0, Total=2256 [2020-09-21 11:32:10,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-21 11:32:10,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 142. [2020-09-21 11:32:10,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-09-21 11:32:10,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 152 transitions. [2020-09-21 11:32:10,612 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 152 transitions. Word has length 165 [2020-09-21 11:32:10,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:10,612 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 152 transitions. [2020-09-21 11:32:10,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-09-21 11:32:10,612 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 152 transitions. [2020-09-21 11:32:10,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-21 11:32:10,616 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:10,616 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:10,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-09-21 11:32:10,617 INFO L427 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:10,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:10,617 INFO L82 PathProgramCache]: Analyzing trace with hash -583456599, now seen corresponding path program 22 times [2020-09-21 11:32:10,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:10,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672945066] [2020-09-21 11:32:10,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:11,069 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:11,069 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:11,069 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:11,070 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:11,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-21 11:32:11,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:11,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-09-21 11:32:11,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:11,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:32:11,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:32:11,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 184 [2020-09-21 11:32:11,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:11,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:11,684 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:11,684 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:11,684 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:11,685 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:11,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:32:11,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:11,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:11,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:11,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:11,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:11,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:11,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:11,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:32:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:11,689 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:11,689 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:11,689 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:11,689 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:11,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:11,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:11,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:11,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:11,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:11,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 11:32:11,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:11,693 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:11,693 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:11,693 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:11,694 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:11,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:11,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:11,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:11,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:11,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:11,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:11,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:11,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:11,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:32:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:11,698 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:11,698 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:11,698 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:11,698 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:11,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:11,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:11,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:11,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:11,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:11,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:11,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:11,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:11,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-21 11:32:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:11,704 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:11,704 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:11,704 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:11,704 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:11,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:11,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:11,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:11,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:11,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:11,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:11,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:11,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:11,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:32:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:11,710 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:11,710 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:11,710 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:11,710 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:11,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:11,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:11,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:11,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:11,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:11,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:11,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:11,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:11,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-21 11:32:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:11,716 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:11,716 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:11,716 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:11,716 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:11,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:11,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:11,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:11,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:11,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:11,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:11,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:11,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:11,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 11:32:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:11,722 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:11,722 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:11,722 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:11,723 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:11,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:11,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:11,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:11,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:11,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:11,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:11,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:11,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:11,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-21 11:32:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:11,728 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:11,728 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:11,728 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:11,729 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:11,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:11,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:11,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:11,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:11,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:11,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:11,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:11,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:11,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-21 11:32:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:11,734 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:11,734 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:11,734 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:11,735 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:11,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:11,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:11,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:11,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:11,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:11,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:11,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:11,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:11,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-21 11:32:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:11,740 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:11,740 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:11,740 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:11,741 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:11,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:11,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:11,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:11,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:11,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:11,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:11,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:11,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:11,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:32:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:11,746 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:11,746 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:11,746 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:11,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:11,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:11,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:11,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:11,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:11,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:11,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:11,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:11,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:11,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-21 11:32:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:11,752 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:11,753 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:11,753 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:11,753 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:11,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:11,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:11,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:11,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:11,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:11,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:11,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:11,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:11,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-21 11:32:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:11,758 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:11,759 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:11,759 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:11,759 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:11,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:11,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:11,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:11,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:11,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:11,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:11,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:11,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:11,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-21 11:32:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:11,764 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:11,765 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:11,765 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:11,765 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:11,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:11,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:11,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:11,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:11,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:11,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:11,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:11,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:11,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-21 11:32:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:11,771 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:11,771 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:11,772 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:11,772 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:11,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:11,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:11,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:11,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:11,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:11,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:11,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:11,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:11,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 480 proven. 240 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-09-21 11:32:11,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672945066] [2020-09-21 11:32:11,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:32:11,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-09-21 11:32:11,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337698697] [2020-09-21 11:32:11,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-09-21 11:32:11,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:11,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-09-21 11:32:11,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=817, Unknown=0, NotChecked=0, Total=1122 [2020-09-21 11:32:11,807 INFO L87 Difference]: Start difference. First operand 142 states and 152 transitions. Second operand 34 states. [2020-09-21 11:32:12,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:12,617 INFO L93 Difference]: Finished difference Result 279 states and 337 transitions. [2020-09-21 11:32:12,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-09-21 11:32:12,617 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 167 [2020-09-21 11:32:12,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:12,619 INFO L225 Difference]: With dead ends: 279 [2020-09-21 11:32:12,619 INFO L226 Difference]: Without dead ends: 208 [2020-09-21 11:32:12,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=729, Invalid=1721, Unknown=0, NotChecked=0, Total=2450 [2020-09-21 11:32:12,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-09-21 11:32:12,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 144. [2020-09-21 11:32:12,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-09-21 11:32:12,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 154 transitions. [2020-09-21 11:32:12,630 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 154 transitions. Word has length 167 [2020-09-21 11:32:12,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:12,630 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 154 transitions. [2020-09-21 11:32:12,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-09-21 11:32:12,630 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 154 transitions. [2020-09-21 11:32:12,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-21 11:32:12,632 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:12,632 INFO L422 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:12,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-09-21 11:32:12,633 INFO L427 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:12,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:12,633 INFO L82 PathProgramCache]: Analyzing trace with hash -365498738, now seen corresponding path program 23 times [2020-09-21 11:32:12,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:12,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [124399078] [2020-09-21 11:32:12,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:13,137 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:13,138 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:13,138 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:13,138 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:13,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-21 11:32:13,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:13,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461 [2020-09-21 11:32:13,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:13,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:32:13,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:32:13,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-09-21 11:32:13,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:13,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:13,470 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:13,470 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:13,470 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:13,470 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:13,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:32:13,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:13,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:13,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:13,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:13,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:13,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:13,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:13,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:32:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:13,475 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:13,475 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:13,475 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:13,476 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:13,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:13,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:13,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:13,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:13,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:13,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:13,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:13,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:13,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:32:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:13,481 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:13,481 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:13,481 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:13,482 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:13,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:13,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:13,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:13,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:13,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:13,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:13,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:13,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:13,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:32:13,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:13,487 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:13,487 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:13,487 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:13,487 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:13,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:13,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:13,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:13,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:13,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:13,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:13,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:13,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:13,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:32:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:13,492 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:13,493 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:13,493 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:13,493 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:13,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:13,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:13,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:13,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:13,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:13,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:13,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:13,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:13,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 11:32:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:13,498 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:13,498 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:13,499 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:13,499 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:13,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:13,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:13,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:13,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:13,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:13,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:13,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:13,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:13,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-21 11:32:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:13,504 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:13,504 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:13,504 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:13,504 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:13,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:13,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:13,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:13,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:13,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:13,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:13,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:13,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:13,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-09-21 11:32:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:13,510 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:13,510 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:13,510 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:13,510 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:13,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:13,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:13,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:13,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:13,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:13,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:13,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:13,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:13,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-21 11:32:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:13,517 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:13,517 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:13,517 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:13,517 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:13,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:13,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:13,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:13,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:13,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:13,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:13,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:13,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:13,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-21 11:32:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:13,523 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:13,523 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:13,523 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:13,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:13,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:13,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:13,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:13,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:13,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:13,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:13,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:13,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:13,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-21 11:32:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:13,528 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:13,529 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:13,529 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:13,529 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:13,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:13,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:13,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:13,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:13,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:13,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:13,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:13,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:13,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-21 11:32:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:13,534 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:13,534 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:13,534 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:13,534 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:13,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:13,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:13,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:13,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:13,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:13,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:13,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:13,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:13,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-21 11:32:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:13,540 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:13,540 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:13,540 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:13,540 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:13,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:13,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:13,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:13,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:13,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:13,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:13,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:13,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:13,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-21 11:32:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:13,546 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:13,546 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:13,546 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:13,546 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:13,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:13,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:13,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:13,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:13,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:13,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:13,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:13,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:13,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-21 11:32:13,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:13,552 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:13,552 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:13,552 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:13,552 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:13,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:13,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:13,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:13,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:13,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:13,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:13,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:13,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:13,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 11:32:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:13,557 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:13,558 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:13,558 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:13,558 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:13,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:13,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:13,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:13,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:13,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:13,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:13,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:13,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:13,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1172 backedges. 302 proven. 450 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-09-21 11:32:13,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [124399078] [2020-09-21 11:32:13,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:32:13,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-21 11:32:13,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221455317] [2020-09-21 11:32:13,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-21 11:32:13,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:13,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-21 11:32:13,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=245, Unknown=0, NotChecked=0, Total=420 [2020-09-21 11:32:13,581 INFO L87 Difference]: Start difference. First operand 144 states and 154 transitions. Second operand 21 states. [2020-09-21 11:32:13,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:13,779 INFO L93 Difference]: Finished difference Result 159 states and 170 transitions. [2020-09-21 11:32:13,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 11:32:13,779 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 169 [2020-09-21 11:32:13,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:13,781 INFO L225 Difference]: With dead ends: 159 [2020-09-21 11:32:13,781 INFO L226 Difference]: Without dead ends: 157 [2020-09-21 11:32:13,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=283, Unknown=0, NotChecked=0, Total=462 [2020-09-21 11:32:13,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-09-21 11:32:13,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2020-09-21 11:32:13,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-09-21 11:32:13,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 167 transitions. [2020-09-21 11:32:13,795 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 167 transitions. Word has length 169 [2020-09-21 11:32:13,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:13,795 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 167 transitions. [2020-09-21 11:32:13,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-21 11:32:13,796 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 167 transitions. [2020-09-21 11:32:13,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-21 11:32:13,798 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:13,798 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:13,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-09-21 11:32:13,798 INFO L427 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:13,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:13,799 INFO L82 PathProgramCache]: Analyzing trace with hash -760007568, now seen corresponding path program 24 times [2020-09-21 11:32:13,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:13,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514098497] [2020-09-21 11:32:13,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:14,345 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:14,345 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:14,345 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:14,346 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:14,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-21 11:32:14,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:14,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 500 [2020-09-21 11:32:14,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:14,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-09-21 11:32:14,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:32:14,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 206 [2020-09-21 11:32:14,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:15,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:15,249 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:15,249 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:15,249 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:15,250 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:15,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:32:15,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:15,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:15,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:15,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:15,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:15,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:32:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:15,256 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:15,256 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:15,256 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:15,257 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:15,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:15,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:15,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:15,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:15,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:15,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:15,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:15,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:15,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:32:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:15,263 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:15,264 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:15,264 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:15,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:15,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:15,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:15,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:15,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:15,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:15,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:15,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:15,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:15,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:32:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:15,271 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:15,272 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:15,272 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:15,272 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:15,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:15,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:15,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:15,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:15,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:15,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:15,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:15,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:15,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:32:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:15,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:15,280 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:15,280 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:15,280 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:15,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:15,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:15,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:15,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:15,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:15,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:15,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:15,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:15,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 11:32:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:15,287 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:15,287 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:15,287 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:15,287 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:15,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:15,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:15,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:15,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:15,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:15,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:15,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:15,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:15,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-21 11:32:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:15,294 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:15,295 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:15,295 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:15,296 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:15,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:15,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:15,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:15,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:15,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:15,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:15,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:15,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:15,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-09-21 11:32:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:15,303 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:15,303 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:15,303 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:15,304 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:15,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:15,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:15,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:15,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:15,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:15,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:15,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:15,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:15,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-21 11:32:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:15,311 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:15,311 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:15,311 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:15,312 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:15,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:15,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:15,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:15,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:15,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:15,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:15,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:15,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:15,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-21 11:32:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:15,319 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:15,319 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:15,320 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:15,320 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:15,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:15,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:15,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:15,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:15,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:15,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:15,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:15,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:15,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-21 11:32:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:15,327 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:15,327 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:15,327 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:15,328 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:15,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:15,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:15,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:15,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:15,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:15,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:15,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:15,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:15,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-21 11:32:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:15,334 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:15,334 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:15,334 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:15,334 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:15,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:15,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:15,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:15,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:15,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:15,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:15,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:15,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:15,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-21 11:32:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:15,341 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:15,342 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:15,342 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:15,342 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:15,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:15,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:15,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:15,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:15,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:15,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:15,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:15,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:15,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-21 11:32:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:15,350 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:15,350 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:15,350 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:15,351 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:15,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:15,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:15,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:15,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:15,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:15,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:15,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:15,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:15,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-21 11:32:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:15,359 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:15,359 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:15,359 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:15,359 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:15,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:15,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:15,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:15,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:15,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:15,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:15,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:15,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:15,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 11:32:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:15,367 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:15,367 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:15,368 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:15,368 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:15,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:15,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:15,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:15,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:15,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:15,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:15,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:15,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:15,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-21 11:32:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:15,375 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:15,376 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:15,376 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:15,376 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:15,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:15,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:15,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:15,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:15,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:15,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:15,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:15,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:15,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-21 11:32:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:15,383 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:15,384 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:15,384 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:15,384 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:15,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:15,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:15,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:15,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:15,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:15,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:15,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:15,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:15,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 612 proven. 272 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-09-21 11:32:15,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514098497] [2020-09-21 11:32:15,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:32:15,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2020-09-21 11:32:15,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111489909] [2020-09-21 11:32:15,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-09-21 11:32:15,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:15,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-09-21 11:32:15,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=360, Invalid=972, Unknown=0, NotChecked=0, Total=1332 [2020-09-21 11:32:15,461 INFO L87 Difference]: Start difference. First operand 156 states and 167 transitions. Second operand 37 states. [2020-09-21 11:32:16,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:16,551 INFO L93 Difference]: Finished difference Result 307 states and 369 transitions. [2020-09-21 11:32:16,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-21 11:32:16,551 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 185 [2020-09-21 11:32:16,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:16,553 INFO L225 Difference]: With dead ends: 307 [2020-09-21 11:32:16,554 INFO L226 Difference]: Without dead ends: 226 [2020-09-21 11:32:16,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=836, Invalid=2026, Unknown=0, NotChecked=0, Total=2862 [2020-09-21 11:32:16,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-21 11:32:16,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 158. [2020-09-21 11:32:16,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-09-21 11:32:16,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 169 transitions. [2020-09-21 11:32:16,565 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 169 transitions. Word has length 185 [2020-09-21 11:32:16,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:16,565 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 169 transitions. [2020-09-21 11:32:16,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-09-21 11:32:16,565 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 169 transitions. [2020-09-21 11:32:16,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-21 11:32:16,566 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:16,567 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:16,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-09-21 11:32:16,567 INFO L427 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:16,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:16,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1861014763, now seen corresponding path program 25 times [2020-09-21 11:32:16,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:16,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331417451] [2020-09-21 11:32:16,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:17,194 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:17,195 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:17,195 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:17,195 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:17,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-21 11:32:17,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:17,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 583 [2020-09-21 11:32:17,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:17,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-21 11:32:17,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:32:17,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 208 [2020-09-21 11:32:17,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:18,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:18,110 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:18,111 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:18,111 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:18,111 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:18,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:32:18,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:18,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:18,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:18,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:18,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:18,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:18,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:18,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:32:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:18,115 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:18,116 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:18,116 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:18,116 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:18,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:18,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:18,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:18,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:18,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:18,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:18,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:18,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:18,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 11:32:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:18,121 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:18,121 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:18,121 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:18,122 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:18,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:18,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:18,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:18,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:18,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:18,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:18,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:18,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:18,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-21 11:32:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:18,126 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:18,126 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:18,127 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:18,127 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:18,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:18,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:18,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:18,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:18,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:18,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:18,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:18,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:18,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:32:18,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:18,133 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:18,133 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:18,133 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:18,134 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:18,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:18,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:18,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:32:18,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:18,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:18,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:18,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:18,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:18,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-21 11:32:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:18,139 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:18,139 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:18,140 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:18,140 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:18,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:18,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:18,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:18,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:18,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:18,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:18,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:18,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:18,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-21 11:32:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:18,145 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:18,146 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:18,146 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:18,146 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:18,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:18,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:18,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:18,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:18,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:18,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:18,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:18,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:18,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-21 11:32:18,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:18,151 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:18,151 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:18,152 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:18,152 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:18,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:18,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:18,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:18,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:18,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:18,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-21 11:32:18,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:18,157 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:18,157 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:18,157 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:18,157 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:18,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:18,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:18,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:18,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:18,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:18,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:18,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:18,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:18,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-21 11:32:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:18,163 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:18,163 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:18,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:18,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:18,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:18,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:18,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:18,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:18,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:18,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:18,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:18,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:18,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-09-21 11:32:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:18,169 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:18,169 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:18,169 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:18,170 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:18,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:18,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:18,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:18,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:18,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:18,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:18,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:18,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:18,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-21 11:32:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:18,175 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:18,175 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:18,176 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:18,176 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:18,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:18,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:18,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:18,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:18,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:18,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:18,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:18,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:18,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-21 11:32:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:18,181 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:18,182 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:18,182 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:18,182 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:18,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:18,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:18,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:18,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:18,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:18,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:18,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:18,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:18,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-21 11:32:18,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:18,188 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:18,188 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:18,188 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:18,189 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:18,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:18,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:18,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:18,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:18,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:18,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:18,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:18,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:18,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-21 11:32:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:18,194 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:18,195 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:18,195 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:18,195 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:18,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:18,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:18,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:18,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:18,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:18,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:18,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:18,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:18,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-21 11:32:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:18,200 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:18,201 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:18,201 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:18,201 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:18,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:18,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:18,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:18,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:18,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:18,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:18,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:18,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:18,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-21 11:32:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:18,206 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:18,206 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:18,207 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:18,207 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:18,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:18,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:18,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:18,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:18,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:18,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:18,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:18,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:18,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-09-21 11:32:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:18,212 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:18,212 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:18,213 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:18,213 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:18,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:18,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:18,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:18,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:18,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:18,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:18,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:18,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:18,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1462 backedges. 612 proven. 306 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-09-21 11:32:18,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1331417451] [2020-09-21 11:32:18,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:32:18,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-09-21 11:32:18,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377228685] [2020-09-21 11:32:18,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-09-21 11:32:18,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:18,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-09-21 11:32:18,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=379, Invalid=1027, Unknown=0, NotChecked=0, Total=1406 [2020-09-21 11:32:18,257 INFO L87 Difference]: Start difference. First operand 158 states and 169 transitions. Second operand 38 states. [2020-09-21 11:32:19,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:19,249 INFO L93 Difference]: Finished difference Result 311 states and 376 transitions. [2020-09-21 11:32:19,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-09-21 11:32:19,250 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 187 [2020-09-21 11:32:19,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:19,252 INFO L225 Difference]: With dead ends: 311 [2020-09-21 11:32:19,253 INFO L226 Difference]: Without dead ends: 232 [2020-09-21 11:32:19,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=910, Invalid=2170, Unknown=0, NotChecked=0, Total=3080 [2020-09-21 11:32:19,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-09-21 11:32:19,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 160. [2020-09-21 11:32:19,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-09-21 11:32:19,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 171 transitions. [2020-09-21 11:32:19,269 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 171 transitions. Word has length 187 [2020-09-21 11:32:19,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:19,270 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 171 transitions. [2020-09-21 11:32:19,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-09-21 11:32:19,270 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 171 transitions. [2020-09-21 11:32:19,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-21 11:32:19,273 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:19,273 INFO L422 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:19,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-09-21 11:32:19,273 INFO L427 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:19,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:19,274 INFO L82 PathProgramCache]: Analyzing trace with hash 927992954, now seen corresponding path program 26 times [2020-09-21 11:32:19,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:19,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1676238419] [2020-09-21 11:32:19,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:19,979 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:19,979 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:19,979 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:19,980 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:19,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-09-21 11:32:19,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:19,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 643 [2020-09-21 11:32:19,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:19,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-21 11:32:19,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:32:19,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-09-21 11:32:19,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:20,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:20,419 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:20,419 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:20,420 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:20,420 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:20,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:32:20,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:20,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:20,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:20,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:20,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:20,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:20,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:20,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:32:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:20,426 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:20,426 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:20,426 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:20,426 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:20,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:20,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:20,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:20,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:20,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:20,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:20,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:20,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:20,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 11:32:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:20,434 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:20,434 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:20,435 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:20,435 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:20,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:20,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:20,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:20,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:20,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:20,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:20,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:20,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:20,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 11:32:20,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:20,441 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:20,442 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:20,442 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:20,442 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:20,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:20,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:20,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:20,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:20,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:20,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:20,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:20,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:20,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 11:32:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:20,449 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:20,449 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:20,449 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:20,449 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:20,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:20,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:20,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:20,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:20,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:20,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:20,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:20,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:20,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-21 11:32:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:20,455 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:20,456 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:20,456 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:20,456 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:20,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:20,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:20,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:20,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:20,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:20,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:20,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:20,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:20,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-21 11:32:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:20,463 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:20,463 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:20,464 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:20,464 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:20,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:20,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:20,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:20,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:20,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:20,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:20,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:20,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:20,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-09-21 11:32:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:20,471 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:20,471 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:20,472 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:20,472 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:20,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:20,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:20,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:20,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:20,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:20,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:20,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:20,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:20,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 11:32:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:20,479 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:20,479 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:20,480 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:20,480 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:20,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:20,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:20,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:20,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:20,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:20,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:20,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:20,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:20,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-09-21 11:32:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:20,487 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:20,488 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:20,488 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:20,488 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:20,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:20,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:20,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:20,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:20,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:20,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:20,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:20,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:20,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-21 11:32:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:20,496 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:20,497 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:20,497 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:20,498 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:20,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:20,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:20,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:20,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:20,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:20,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:20,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:20,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:20,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-21 11:32:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:20,505 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:20,505 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:20,505 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:20,506 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:20,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:20,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:20,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:20,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:20,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:20,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:20,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:20,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-21 11:32:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:20,513 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:20,514 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:20,514 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:20,514 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:20,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:20,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:20,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:20,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:20,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:20,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:20,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:20,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:20,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-21 11:32:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:20,522 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:20,522 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:20,523 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:20,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:20,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:20,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:20,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:20,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:20,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:20,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:20,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:20,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:20,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-21 11:32:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:20,531 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:20,531 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:20,531 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:20,532 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:20,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:20,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:20,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:20,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:20,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:20,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:20,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:20,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:20,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-21 11:32:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:20,539 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:20,540 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:20,540 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:20,540 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:20,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:20,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:20,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:20,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:20,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:20,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:20,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:20,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:20,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-21 11:32:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:20,548 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:20,548 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:20,548 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:20,549 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:20,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:20,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:20,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:20,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:20,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:20,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:20,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:20,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:20,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-21 11:32:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:20,562 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:20,563 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:20,563 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:20,563 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:20,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:20,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:20,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:20,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:20,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:20,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:20,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:20,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:20,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1498 backedges. 376 proven. 578 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-09-21 11:32:20,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1676238419] [2020-09-21 11:32:20,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:32:20,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-21 11:32:20,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214259346] [2020-09-21 11:32:20,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-21 11:32:20,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:20,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-21 11:32:20,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=292, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:32:20,629 INFO L87 Difference]: Start difference. First operand 160 states and 171 transitions. Second operand 23 states. [2020-09-21 11:32:20,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:20,920 INFO L93 Difference]: Finished difference Result 175 states and 187 transitions. [2020-09-21 11:32:20,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-21 11:32:20,921 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 189 [2020-09-21 11:32:20,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:20,924 INFO L225 Difference]: With dead ends: 175 [2020-09-21 11:32:20,924 INFO L226 Difference]: Without dead ends: 173 [2020-09-21 11:32:20,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=218, Invalid=334, Unknown=0, NotChecked=0, Total=552 [2020-09-21 11:32:20,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-09-21 11:32:20,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 172. [2020-09-21 11:32:20,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-09-21 11:32:20,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 184 transitions. [2020-09-21 11:32:20,937 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 184 transitions. Word has length 189 [2020-09-21 11:32:20,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:20,938 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 184 transitions. [2020-09-21 11:32:20,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-21 11:32:20,939 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 184 transitions. [2020-09-21 11:32:20,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-21 11:32:20,941 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:20,941 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:20,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-09-21 11:32:20,942 INFO L427 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:20,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:20,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1753938524, now seen corresponding path program 27 times [2020-09-21 11:32:20,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:20,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [591839330] [2020-09-21 11:32:20,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:21,711 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:21,712 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:21,712 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:21,712 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:21,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-21 11:32:21,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:21,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 697 [2020-09-21 11:32:21,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:21,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-09-21 11:32:21,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:32:21,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 230 [2020-09-21 11:32:21,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:22,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:22,580 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:22,580 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:22,580 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:22,580 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:22,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:32:22,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:22,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:22,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:22,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:22,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:22,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:22,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:22,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:32:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:22,585 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:22,585 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:22,585 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:22,586 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:22,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:22,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:22,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:22,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:22,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:22,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:22,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:22,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:22,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 11:32:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:22,591 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:22,591 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:22,591 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:22,592 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:22,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:22,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:22,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:22,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:22,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:22,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:22,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:22,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:22,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 11:32:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:22,597 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:22,598 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:22,598 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:22,598 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:22,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:22,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:22,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:22,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:22,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:22,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:22,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:22,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:22,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 11:32:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:22,603 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:22,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:22,604 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:22,604 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:22,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:22,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:22,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:22,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:22,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:22,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:22,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:22,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:22,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-21 11:32:22,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:22,609 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:22,609 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:22,609 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:22,610 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:22,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:22,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:22,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:22,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:22,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:22,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:22,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:22,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:22,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-21 11:32:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:22,615 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:22,615 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:22,615 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:22,616 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:22,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:22,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:22,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:22,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:22,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:22,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:22,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:22,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:22,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-09-21 11:32:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:22,622 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:22,622 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:22,622 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:22,623 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:22,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:22,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:22,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:22,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:22,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:22,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:22,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:22,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:22,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 11:32:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:22,628 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:22,629 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:22,629 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:22,629 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:22,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:22,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:22,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:22,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:22,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:22,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:22,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:22,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:22,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-09-21 11:32:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:22,634 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:22,634 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:22,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:22,635 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:22,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:22,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:22,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:22,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:22,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:22,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:22,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:22,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:22,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-21 11:32:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:22,640 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:22,640 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:22,641 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:22,641 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:22,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:22,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:22,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:22,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:22,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:22,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:22,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:22,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:22,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-21 11:32:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:22,646 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:22,646 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:22,646 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:22,647 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:22,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:22,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:22,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:22,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:22,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:22,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:22,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:22,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:22,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-21 11:32:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:22,653 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:22,653 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:22,654 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:22,654 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:22,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:22,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:22,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:22,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:22,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:22,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:22,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:22,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:22,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-21 11:32:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:22,660 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:22,660 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:22,660 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:22,661 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:22,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:22,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:22,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:22,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:22,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:22,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:22,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:22,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:22,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-21 11:32:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:22,667 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:22,667 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:22,667 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:22,667 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:22,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:22,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:22,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:22,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:22,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:22,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:22,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:22,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:22,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-21 11:32:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:22,673 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:22,673 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:22,673 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:22,674 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:22,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:22,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:22,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:22,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:22,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:22,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:22,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:22,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:22,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-21 11:32:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:22,679 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:22,679 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:22,679 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:22,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:22,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:22,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:22,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:22,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:22,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:22,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:22,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:22,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:22,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-21 11:32:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:22,685 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:22,685 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:22,685 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:22,686 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:22,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:22,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:22,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:22,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:22,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:22,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:22,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:22,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:22,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-21 11:32:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:22,689 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:22,690 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:22,690 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:22,690 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:22,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:22,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:22,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:22,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:22,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:22,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:22,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:22,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:22,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-21 11:32:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:22,694 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:22,694 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:22,694 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:22,694 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:22,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:22,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:22,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:22,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:22,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:22,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:22,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:22,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:22,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1786 backedges. 760 proven. 342 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-09-21 11:32:22,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [591839330] [2020-09-21 11:32:22,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:32:22,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2020-09-21 11:32:22,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612810555] [2020-09-21 11:32:22,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-09-21 11:32:22,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:22,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-09-21 11:32:22,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=440, Invalid=1200, Unknown=0, NotChecked=0, Total=1640 [2020-09-21 11:32:22,727 INFO L87 Difference]: Start difference. First operand 172 states and 184 transitions. Second operand 41 states. [2020-09-21 11:32:23,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:23,810 INFO L93 Difference]: Finished difference Result 339 states and 408 transitions. [2020-09-21 11:32:23,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-09-21 11:32:23,811 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 205 [2020-09-21 11:32:23,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:23,814 INFO L225 Difference]: With dead ends: 339 [2020-09-21 11:32:23,814 INFO L226 Difference]: Without dead ends: 250 [2020-09-21 11:32:23,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1029, Invalid=2511, Unknown=0, NotChecked=0, Total=3540 [2020-09-21 11:32:23,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-09-21 11:32:23,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 174. [2020-09-21 11:32:23,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-09-21 11:32:23,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 186 transitions. [2020-09-21 11:32:23,841 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 186 transitions. Word has length 205 [2020-09-21 11:32:23,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:23,841 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 186 transitions. [2020-09-21 11:32:23,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-09-21 11:32:23,842 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 186 transitions. [2020-09-21 11:32:23,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-21 11:32:23,846 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:23,847 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:23,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-09-21 11:32:23,847 INFO L427 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:23,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:23,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1542073473, now seen corresponding path program 28 times [2020-09-21 11:32:23,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:23,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [926982875] [2020-09-21 11:32:23,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:24,588 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:24,589 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:24,589 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:24,589 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:24,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-09-21 11:32:24,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:24,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 668 [2020-09-21 11:32:24,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:24,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-09-21 11:32:24,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:32:24,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 232 [2020-09-21 11:32:24,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:25,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:25,571 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:25,572 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:25,572 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:25,572 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:25,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:32:25,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:25,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:25,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:25,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:25,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:25,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:25,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:25,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 11:32:25,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:25,577 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:25,577 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:25,577 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:25,577 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:25,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:25,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:25,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:25,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:25,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:25,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:25,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:25,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:25,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:32:25,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:25,581 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:25,582 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:25,582 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:25,582 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:25,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:25,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:25,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:25,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:25,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:25,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:25,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:25,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:25,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-21 11:32:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:25,587 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:25,587 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:25,587 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:25,588 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:25,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:25,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:25,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:25,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:25,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:25,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:25,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:25,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:25,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:32:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:25,591 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:25,592 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:25,592 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:25,592 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:25,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:25,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:25,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:25,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:25,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:25,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:25,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:25,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:25,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-21 11:32:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:25,596 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:25,596 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:25,596 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:25,597 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:25,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:25,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:25,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:25,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:25,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:25,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:25,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:25,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:25,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 11:32:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:25,601 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:25,601 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:25,601 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:25,602 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:25,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:25,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:25,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:25,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:25,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:25,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:25,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:25,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:25,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-21 11:32:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:25,607 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:25,607 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:25,607 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:25,607 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:25,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:25,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:25,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:25,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:25,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:25,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:25,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:25,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:25,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-21 11:32:25,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:25,613 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:25,613 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:25,613 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:25,614 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:25,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:25,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:25,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:25,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:25,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:25,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:25,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:25,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:25,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-21 11:32:25,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:25,619 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:25,620 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:25,620 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:25,620 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:25,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:25,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:25,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:25,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:25,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:25,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:25,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:25,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-09-21 11:32:25,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:32:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:25,638 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:25,638 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:25,639 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:25,639 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:25,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:25,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:25,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:25,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:25,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:25,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:25,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:25,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:25,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-21 11:32:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:25,642 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:25,642 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:25,642 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:25,642 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:25,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:25,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:25,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:25,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:25,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:25,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:25,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:25,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:25,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-21 11:32:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:25,647 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:25,647 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:25,647 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:25,647 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:25,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:25,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:25,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:25,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:25,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:25,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:25,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:25,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:25,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-21 11:32:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:25,652 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:25,652 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:25,652 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:25,652 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:25,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:25,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:25,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:25,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:25,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:25,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:25,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:25,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:25,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-21 11:32:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:25,657 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:25,657 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:25,657 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:25,657 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:25,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:25,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:25,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:25,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:25,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:25,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:25,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:25,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:25,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-21 11:32:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:25,661 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:25,661 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:25,661 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:25,661 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:25,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:25,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:25,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:25,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:25,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:25,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:25,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:25,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:25,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-21 11:32:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:25,665 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:25,665 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:25,665 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:25,666 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:25,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:25,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:25,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:25,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:25,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:25,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:25,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:25,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:25,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-09-21 11:32:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:25,669 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:25,670 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:25,670 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:25,670 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:25,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:25,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:25,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:25,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:25,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:25,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:25,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:25,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:25,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-21 11:32:25,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:25,674 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:25,675 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:25,675 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:25,675 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:25,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:25,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:25,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:25,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:25,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:25,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:25,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:25,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:25,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-21 11:32:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:25,679 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:25,679 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:25,679 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:25,679 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:25,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:25,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:25,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:25,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:25,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:25,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:25,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:25,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:25,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1824 backedges. 760 proven. 380 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-09-21 11:32:25,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [926982875] [2020-09-21 11:32:25,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:32:25,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2020-09-21 11:32:25,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172488866] [2020-09-21 11:32:25,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-09-21 11:32:25,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:25,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-09-21 11:32:25,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=461, Invalid=1261, Unknown=0, NotChecked=0, Total=1722 [2020-09-21 11:32:25,718 INFO L87 Difference]: Start difference. First operand 174 states and 186 transitions. Second operand 42 states. [2020-09-21 11:32:26,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:26,989 INFO L93 Difference]: Finished difference Result 343 states and 415 transitions. [2020-09-21 11:32:26,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-21 11:32:26,989 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 207 [2020-09-21 11:32:26,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:26,991 INFO L225 Difference]: With dead ends: 343 [2020-09-21 11:32:26,991 INFO L226 Difference]: Without dead ends: 256 [2020-09-21 11:32:26,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1111, Invalid=2671, Unknown=0, NotChecked=0, Total=3782 [2020-09-21 11:32:26,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-09-21 11:32:27,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 176. [2020-09-21 11:32:27,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-09-21 11:32:27,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 188 transitions. [2020-09-21 11:32:27,004 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 188 transitions. Word has length 207 [2020-09-21 11:32:27,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:27,004 INFO L479 AbstractCegarLoop]: Abstraction has 176 states and 188 transitions. [2020-09-21 11:32:27,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-09-21 11:32:27,004 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 188 transitions. [2020-09-21 11:32:27,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-09-21 11:32:27,006 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:27,006 INFO L422 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 20, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:27,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-09-21 11:32:27,007 INFO L427 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:27,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:27,007 INFO L82 PathProgramCache]: Analyzing trace with hash -196777626, now seen corresponding path program 29 times [2020-09-21 11:32:27,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:27,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [387200717] [2020-09-21 11:32:27,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:27,832 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:27,833 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:27,833 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:27,833 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:27,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-09-21 11:32:27,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:27,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 766 [2020-09-21 11:32:27,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:27,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-21 11:32:27,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:32:27,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-09-21 11:32:27,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:32:28,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:28,234 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:28,234 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:28,234 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:28,235 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:28,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:32:28,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:28,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:28,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:28,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:28,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:28,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:28,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:28,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:32:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:28,238 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:28,238 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:28,238 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:28,239 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:28,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:28,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:28,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:28,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:28,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:28,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:28,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:28,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:28,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:32:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:28,242 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:28,242 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:28,242 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:28,242 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:28,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:28,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:28,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:28,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:28,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:28,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:28,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:28,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:28,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:32:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:28,246 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:28,246 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:28,246 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:28,246 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:28,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:28,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:28,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:28,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:28,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:28,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:28,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:28,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:28,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 11:32:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:28,250 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:28,250 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:28,250 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:28,250 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:28,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:28,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:28,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:28,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:28,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:28,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:28,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:28,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:28,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-21 11:32:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:28,253 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:28,253 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:28,254 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:28,254 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:28,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:28,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:28,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:28,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:28,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:28,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:28,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:28,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:28,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-09-21 11:32:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:28,258 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:28,258 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:28,258 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:28,258 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:28,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:28,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:28,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:28,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:28,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:28,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:28,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:28,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:28,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-21 11:32:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:28,263 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:28,264 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:28,264 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:28,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:28,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:28,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:28,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:28,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:28,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:28,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:28,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:28,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:28,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-21 11:32:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:28,269 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:28,269 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:28,269 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:28,269 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:28,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:28,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:28,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:28,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:28,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:28,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:28,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:28,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:28,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-21 11:32:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:28,274 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:28,275 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:28,275 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:28,275 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:28,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:28,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:28,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:28,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:28,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:28,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:28,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:28,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:28,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-21 11:32:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:28,280 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:28,280 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:28,280 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:28,280 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:28,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:28,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:28,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:28,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:28,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:28,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:28,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:28,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:28,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-21 11:32:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:28,286 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:28,286 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:28,286 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:28,286 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:28,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:28,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:28,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:28,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:28,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:28,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:28,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:28,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:28,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-21 11:32:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:28,291 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:28,291 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:28,291 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:28,292 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:28,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:28,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:28,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:28,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:28,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:28,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:28,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:28,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:28,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-21 11:32:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:28,297 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:28,297 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:28,297 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:28,298 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:28,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:28,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:28,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:28,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:28,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:28,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:28,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:28,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:28,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 11:32:28,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:28,302 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:28,302 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:28,302 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:28,303 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:28,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:28,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:28,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:28,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:28,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:28,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:28,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:28,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:28,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-21 11:32:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:28,306 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:28,306 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:28,306 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:28,307 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:28,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:28,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:28,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:28,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:28,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:28,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:28,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:28,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:28,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-21 11:32:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:28,310 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:28,310 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:28,310 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:28,310 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:28,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:28,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:28,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:28,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:28,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:28,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:28,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:28,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:28,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-21 11:32:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:28,314 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:28,314 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:28,314 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:28,314 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:28,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:28,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:28,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:28,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:28,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:28,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:28,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:28,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:28,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-21 11:32:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:28,319 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:28,319 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:28,319 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:28,319 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:28,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:28,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:28,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:28,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:28,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:28,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:28,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:28,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:28,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-21 11:32:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:28,323 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:28,324 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:28,324 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:28,324 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:28,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:28,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:28,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:28,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:28,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:28,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:28,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:28,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:28,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1864 backedges. 458 proven. 722 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-09-21 11:32:28,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [387200717] [2020-09-21 11:32:28,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:32:28,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-21 11:32:28,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067476019] [2020-09-21 11:32:28,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-21 11:32:28,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:28,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-21 11:32:28,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=343, Unknown=0, NotChecked=0, Total=600 [2020-09-21 11:32:28,365 INFO L87 Difference]: Start difference. First operand 176 states and 188 transitions. Second operand 25 states. [2020-09-21 11:32:28,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:28,667 INFO L93 Difference]: Finished difference Result 191 states and 204 transitions. [2020-09-21 11:32:28,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-21 11:32:28,667 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 209 [2020-09-21 11:32:28,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:28,670 INFO L225 Difference]: With dead ends: 191 [2020-09-21 11:32:28,670 INFO L226 Difference]: Without dead ends: 189 [2020-09-21 11:32:28,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=389, Unknown=0, NotChecked=0, Total=650 [2020-09-21 11:32:28,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-09-21 11:32:28,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 188. [2020-09-21 11:32:28,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-09-21 11:32:28,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 201 transitions. [2020-09-21 11:32:28,681 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 201 transitions. Word has length 209 [2020-09-21 11:32:28,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:28,681 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 201 transitions. [2020-09-21 11:32:28,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-21 11:32:28,682 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 201 transitions. [2020-09-21 11:32:28,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-21 11:32:28,683 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:28,683 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 21, 21, 21, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:28,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-09-21 11:32:28,684 INFO L427 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:28,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:28,684 INFO L82 PathProgramCache]: Analyzing trace with hash 65077064, now seen corresponding path program 30 times [2020-09-21 11:32:28,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:28,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1940580659] [2020-09-21 11:32:28,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:29,423 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:29,424 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:29,424 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:29,424 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:29,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-09-21 11:32:29,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:29,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 679 [2020-09-21 11:32:29,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:29,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-09-21 11:32:29,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:32:29,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 254 [2020-09-21 11:32:29,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:30,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,531 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,531 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,532 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,532 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:32:30,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:30,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:30,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:30,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:32:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,535 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,535 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,535 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,535 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:30,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 11:32:30,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,539 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,539 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,539 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,540 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:30,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:32:30,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,543 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,543 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,544 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,544 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:30,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 11:32:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,547 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,548 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,548 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,548 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:30,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-21 11:32:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,551 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,552 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,552 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,552 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:30,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-09-21 11:32:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,555 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,556 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,556 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,556 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:30,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-21 11:32:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,559 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,560 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,560 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:30,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-21 11:32:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,565 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,565 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,565 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,565 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:30,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-21 11:32:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,570 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,571 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,571 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,571 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:30,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-21 11:32:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,576 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,576 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,577 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,577 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:30,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-21 11:32:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,582 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,582 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,582 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,582 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:30,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-21 11:32:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,588 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,588 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,588 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,589 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:30,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-21 11:32:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,594 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,594 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,594 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,595 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:30,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 11:32:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,600 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,600 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,600 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,600 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:30,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-21 11:32:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,606 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,606 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,606 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,606 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:30,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-21 11:32:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,612 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,612 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,612 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,613 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:30,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-21 11:32:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,618 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,618 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,619 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,619 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:30,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-21 11:32:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,625 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,625 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,625 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,625 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:30,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-21 11:32:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,631 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,632 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,632 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,632 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:30,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-21 11:32:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,638 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,638 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,638 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,638 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:30,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-09-21 11:32:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:30,644 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:30,644 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:30,644 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:30,644 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:30,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:30,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:30,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:30,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:30,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:30,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:30,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:30,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:30,687 INFO L134 CoverageAnalysis]: Checked inductivity of 2184 backedges. 924 proven. 420 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-09-21 11:32:30,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1940580659] [2020-09-21 11:32:30,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:32:30,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2020-09-21 11:32:30,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884619348] [2020-09-21 11:32:30,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-09-21 11:32:30,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:30,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-09-21 11:32:30,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=1452, Unknown=0, NotChecked=0, Total=1980 [2020-09-21 11:32:30,689 INFO L87 Difference]: Start difference. First operand 188 states and 201 transitions. Second operand 45 states. [2020-09-21 11:32:31,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:31,889 INFO L93 Difference]: Finished difference Result 371 states and 447 transitions. [2020-09-21 11:32:31,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-09-21 11:32:31,890 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 225 [2020-09-21 11:32:31,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:31,892 INFO L225 Difference]: With dead ends: 371 [2020-09-21 11:32:31,892 INFO L226 Difference]: Without dead ends: 274 [2020-09-21 11:32:31,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1242, Invalid=3048, Unknown=0, NotChecked=0, Total=4290 [2020-09-21 11:32:31,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-21 11:32:31,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 190. [2020-09-21 11:32:31,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-09-21 11:32:31,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 203 transitions. [2020-09-21 11:32:31,913 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 203 transitions. Word has length 225 [2020-09-21 11:32:31,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:31,913 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 203 transitions. [2020-09-21 11:32:31,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-09-21 11:32:31,914 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 203 transitions. [2020-09-21 11:32:31,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-09-21 11:32:31,915 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:31,915 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:31,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-09-21 11:32:31,916 INFO L427 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:31,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:31,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1137618157, now seen corresponding path program 31 times [2020-09-21 11:32:31,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:31,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219525176] [2020-09-21 11:32:31,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:32,762 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:32,763 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:32,763 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:32,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:32,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 278 [2020-09-21 11:32:32,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:32,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 753 [2020-09-21 11:32:32,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:32,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-09-21 11:32:32,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:32:32,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 256 [2020-09-21 11:32:32,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,870 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,871 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,871 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,871 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:32:33,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:33,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:33,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:33,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 11:32:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,875 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,876 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,876 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,876 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:33,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-21 11:32:33,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,881 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,881 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,881 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,881 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:33,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:32:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,885 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,885 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,886 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,886 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:33,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-21 11:32:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,889 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,889 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,889 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,889 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:33,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-21 11:32:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,893 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,893 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:33,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-21 11:32:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,897 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,897 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,897 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,897 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:33,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-21 11:32:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,900 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,900 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,901 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,901 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:33,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-21 11:32:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,904 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,904 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,904 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,904 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:33,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-09-21 11:32:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,908 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,908 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,908 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,908 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:33,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-21 11:32:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,912 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,912 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,912 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,912 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:33,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-21 11:32:33,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,916 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,916 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,916 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,916 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:33,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-21 11:32:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,921 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,922 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,922 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,922 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:33,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-21 11:32:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,926 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,926 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,926 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,926 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:33,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-21 11:32:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,930 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,930 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,930 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,930 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:33,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-21 11:32:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,935 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,935 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,935 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,935 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:33,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-09-21 11:32:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,947 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,948 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,948 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,948 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:33,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-21 11:32:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,954 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,954 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,955 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,955 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:33,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-21 11:32:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,960 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,960 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,960 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,960 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:33,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-21 11:32:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,965 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,965 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,965 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,965 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:33,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-21 11:32:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,969 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,969 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,970 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,970 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:33,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:33,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-09-21 11:32:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:33,974 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:33,974 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:33,974 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:33,974 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:33,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:33,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:33,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:33,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:33,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:33,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:33,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:33,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:34,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2226 backedges. 924 proven. 462 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-09-21 11:32:34,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219525176] [2020-09-21 11:32:34,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:32:34,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2020-09-21 11:32:34,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590379278] [2020-09-21 11:32:34,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-09-21 11:32:34,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:34,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-09-21 11:32:34,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2020-09-21 11:32:34,035 INFO L87 Difference]: Start difference. First operand 190 states and 203 transitions. Second operand 46 states. [2020-09-21 11:32:35,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:35,488 INFO L93 Difference]: Finished difference Result 375 states and 454 transitions. [2020-09-21 11:32:35,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-09-21 11:32:35,488 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 227 [2020-09-21 11:32:35,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:35,490 INFO L225 Difference]: With dead ends: 375 [2020-09-21 11:32:35,490 INFO L226 Difference]: Without dead ends: 280 [2020-09-21 11:32:35,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2020-09-21 11:32:35,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-09-21 11:32:35,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 192. [2020-09-21 11:32:35,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-09-21 11:32:35,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 205 transitions. [2020-09-21 11:32:35,504 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 205 transitions. Word has length 227 [2020-09-21 11:32:35,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:35,504 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 205 transitions. [2020-09-21 11:32:35,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-09-21 11:32:35,504 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 205 transitions. [2020-09-21 11:32:35,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-09-21 11:32:35,506 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:35,506 INFO L422 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 22, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:35,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-09-21 11:32:35,506 INFO L427 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:35,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:35,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1057457490, now seen corresponding path program 32 times [2020-09-21 11:32:35,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:35,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699533512] [2020-09-21 11:32:35,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,291 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,292 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,292 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,292 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-21 11:32:36,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 727 [2020-09-21 11:32:36,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-09-21 11:32:36,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:32:36,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-09-21 11:32:36,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:32:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,826 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,826 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,826 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,827 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:32:36,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:36,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:32:36,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:32:36,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 11:32:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,830 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,830 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,830 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,831 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:36,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 11:32:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,834 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,834 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,834 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,835 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:36,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 11:32:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,839 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,839 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:36,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-21 11:32:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,844 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,844 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,844 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,844 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:36,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-21 11:32:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,849 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,849 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,849 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,850 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:36,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-09-21 11:32:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,854 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,854 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,854 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,855 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:36,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 11:32:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,859 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,859 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,860 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,860 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:36,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-09-21 11:32:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,865 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,865 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,865 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:36,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-21 11:32:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,870 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,870 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,870 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,870 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:36,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-21 11:32:36,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,874 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,875 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,875 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,875 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:36,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-21 11:32:36,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,879 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,879 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,880 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,880 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:36,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-21 11:32:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,883 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,884 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,884 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,884 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:32:36,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-21 11:32:36,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,888 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,888 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,888 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,889 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:36,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-21 11:32:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,894 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,894 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,894 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,894 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:36,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-21 11:32:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,899 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,900 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,900 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,900 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:36,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-21 11:32:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,905 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,906 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,906 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,906 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:36,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-21 11:32:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,912 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,912 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,912 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,912 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:36,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-21 11:32:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,918 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,918 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,919 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,919 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:36,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-09-21 11:32:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,925 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,925 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,925 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,926 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:36,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-09-21 11:32:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,931 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,932 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,932 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,932 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:36,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-21 11:32:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:36,937 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:36,938 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:36,938 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:36,938 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:36,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:32:36,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:36,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:32:36,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:36,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:32:36,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:32:36,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:32:36,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:32:36,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2270 backedges. 548 proven. 882 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-09-21 11:32:36,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699533512] [2020-09-21 11:32:36,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:32:36,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-21 11:32:36,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877146193] [2020-09-21 11:32:36,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-21 11:32:36,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:32:36,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-21 11:32:36,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=398, Unknown=0, NotChecked=0, Total=702 [2020-09-21 11:32:36,988 INFO L87 Difference]: Start difference. First operand 192 states and 205 transitions. Second operand 27 states. [2020-09-21 11:32:37,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:32:37,282 INFO L93 Difference]: Finished difference Result 207 states and 221 transitions. [2020-09-21 11:32:37,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-21 11:32:37,282 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 229 [2020-09-21 11:32:37,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:32:37,284 INFO L225 Difference]: With dead ends: 207 [2020-09-21 11:32:37,285 INFO L226 Difference]: Without dead ends: 205 [2020-09-21 11:32:37,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=308, Invalid=448, Unknown=0, NotChecked=0, Total=756 [2020-09-21 11:32:37,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-09-21 11:32:37,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 204. [2020-09-21 11:32:37,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-09-21 11:32:37,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 218 transitions. [2020-09-21 11:32:37,296 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 218 transitions. Word has length 229 [2020-09-21 11:32:37,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:32:37,296 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 218 transitions. [2020-09-21 11:32:37,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-21 11:32:37,297 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 218 transitions. [2020-09-21 11:32:37,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-09-21 11:32:37,298 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:32:37,298 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:32:37,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-09-21 11:32:37,299 INFO L427 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:32:37,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:32:37,299 INFO L82 PathProgramCache]: Analyzing trace with hash -777665740, now seen corresponding path program 33 times [2020-09-21 11:32:37,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:32:37,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [499627345] [2020-09-21 11:32:37,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:32:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:32:38,180 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:32:38,180 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:32:38,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:32:38,181 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:32:38,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-09-21 11:32:38,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:32:38,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 803 [2020-09-21 11:32:38,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:32:38,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-09-21 11:32:38,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:32:38,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 278 [2020-09-21 11:32:38,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0