/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/recursive/Addition03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:19:26,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:19:26,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:19:26,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:19:26,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:19:26,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:19:26,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:19:26,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:19:26,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:19:26,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:19:26,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:19:26,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:19:26,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:19:26,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:19:26,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:19:26,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:19:26,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:19:26,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:19:26,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:19:26,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:19:26,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:19:26,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:19:26,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:19:26,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:19:26,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:19:26,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:19:26,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:19:26,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:19:26,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:19:26,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:19:26,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:19:26,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:19:26,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:19:26,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:19:26,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:19:26,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:19:26,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:19:26,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:19:26,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:19:26,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:19:26,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:19:26,323 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 11:19:26,375 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:19:26,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:19:26,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:19:26,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:19:26,378 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:19:26,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:19:26,379 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:19:26,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:19:26,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:19:26,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:19:26,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:19:26,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:19:26,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:19:26,381 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:19:26,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:19:26,382 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:19:26,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:19:26,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:19:26,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:19:26,383 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:19:26,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:19:26,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:19:26,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:19:26,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:19:26,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:19:26,384 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:19:26,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:19:26,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:19:26,384 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:19:26,385 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 11:19:26,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:19:26,878 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:19:26,882 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:19:26,884 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:19:26,884 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:19:26,886 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Addition03-1.c [2020-09-21 11:19:26,993 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97c46c3d1/15e83ccd570647a29ab79c2f4c8e69d3/FLAG64e78c3b0 [2020-09-21 11:19:27,547 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:19:27,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Addition03-1.c [2020-09-21 11:19:27,556 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97c46c3d1/15e83ccd570647a29ab79c2f4c8e69d3/FLAG64e78c3b0 [2020-09-21 11:19:27,906 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97c46c3d1/15e83ccd570647a29ab79c2f4c8e69d3 [2020-09-21 11:19:27,920 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:19:27,925 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:19:27,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:19:27,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:19:27,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:19:27,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:19:27" (1/1) ... [2020-09-21 11:19:27,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194bd3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:27, skipping insertion in model container [2020-09-21 11:19:27,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:19:27" (1/1) ... [2020-09-21 11:19:27,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:19:27,971 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:19:28,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:19:28,197 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:19:28,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:19:28,242 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:19:28,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:28 WrapperNode [2020-09-21 11:19:28,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:19:28,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:19:28,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:19:28,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:19:28,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:28" (1/1) ... [2020-09-21 11:19:28,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:28" (1/1) ... [2020-09-21 11:19:28,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:28" (1/1) ... [2020-09-21 11:19:28,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:28" (1/1) ... [2020-09-21 11:19:28,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:28" (1/1) ... [2020-09-21 11:19:28,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:28" (1/1) ... [2020-09-21 11:19:28,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:28" (1/1) ... [2020-09-21 11:19:28,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:19:28,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:19:28,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:19:28,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:19:28,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:28" (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 11:19:28,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:19:28,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:19:28,493 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-09-21 11:19:28,494 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:19:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:19:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:19:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-09-21 11:19:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:19:28,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:19:28,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:19:28,729 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:19:28,729 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 11:19:28,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:19:28 BoogieIcfgContainer [2020-09-21 11:19:28,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:19:28,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:19:28,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:19:28,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:19:28,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:19:27" (1/3) ... [2020-09-21 11:19:28,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@80b7f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:19:28, skipping insertion in model container [2020-09-21 11:19:28,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:28" (2/3) ... [2020-09-21 11:19:28,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@80b7f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:19:28, skipping insertion in model container [2020-09-21 11:19:28,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:19:28" (3/3) ... [2020-09-21 11:19:28,746 INFO L109 eAbstractionObserver]: Analyzing ICFG Addition03-1.c [2020-09-21 11:19:28,758 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:19:28,768 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:19:28,790 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:19:28,820 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:19:28,820 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:19:28,820 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:19:28,820 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:19:28,821 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:19:28,821 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:19:28,821 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:19:28,821 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:19:28,840 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-09-21 11:19:28,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-21 11:19:28,848 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:28,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:28,849 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:28,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:28,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1540493149, now seen corresponding path program 1 times [2020-09-21 11:19:28,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:28,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1812100174] [2020-09-21 11:19:28,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:28,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:29,024 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:29,024 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:29,024 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:29,025 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:29,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:19:29,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:29,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-21 11:19:29,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:29,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:19:29,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:19:29,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:19:29,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:29,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:29,093 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:29,093 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:29,094 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:29,094 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:29,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:29,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:29,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:19:29,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:29,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:29,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:29,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:29,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:29,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:19:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:29,119 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:29,120 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:29,120 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:29,120 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:29,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:19:29,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:29,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:19:29,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:29,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:19:29,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:29,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:19:29,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:29,172 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 11:19:29,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1812100174] [2020-09-21 11:19:29,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:19:29,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:19:29,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254307550] [2020-09-21 11:19:29,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:19:29,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:29,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:19:29,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:19:29,213 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-09-21 11:19:29,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:29,406 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2020-09-21 11:19:29,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:19:29,408 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-21 11:19:29,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:29,423 INFO L225 Difference]: With dead ends: 36 [2020-09-21 11:19:29,423 INFO L226 Difference]: Without dead ends: 22 [2020-09-21 11:19:29,427 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 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 11:19:29,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-21 11:19:29,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-09-21 11:19:29,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-21 11:19:29,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2020-09-21 11:19:29,477 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 13 [2020-09-21 11:19:29,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:29,477 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-09-21 11:19:29,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:19:29,478 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-09-21 11:19:29,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-21 11:19:29,480 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:29,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:29,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:19:29,481 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:29,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:29,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1700112874, now seen corresponding path program 1 times [2020-09-21 11:19:29,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:29,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208579963] [2020-09-21 11:19:29,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:29,504 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:29,504 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:29,505 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:29,505 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:29,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 11:19:29,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:29,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:19:29,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:29,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:19:29,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 11:19:29,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:19:29,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:29,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:29,522 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:29,522 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:29,522 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:29,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:29,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:29,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:29,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:19:29,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:29,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:29,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:29,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:29,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:29,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:19:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:29,537 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:29,537 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:29,537 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:29,538 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:29,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:19:29,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:29,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:19:29,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:29,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:19:29,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 11:19:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:19:29,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:29,576 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 11:19:29,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208579963] [2020-09-21 11:19:29,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:19:29,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:19:29,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264725298] [2020-09-21 11:19:29,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:19:29,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:29,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:19:29,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:19:29,585 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand 4 states. [2020-09-21 11:19:29,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:29,637 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2020-09-21 11:19:29,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 11:19:29,638 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-21 11:19:29,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:29,639 INFO L225 Difference]: With dead ends: 32 [2020-09-21 11:19:29,640 INFO L226 Difference]: Without dead ends: 24 [2020-09-21 11:19:29,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:19:29,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-09-21 11:19:29,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2020-09-21 11:19:29,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-21 11:19:29,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2020-09-21 11:19:29,650 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15 [2020-09-21 11:19:29,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:29,651 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2020-09-21 11:19:29,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:19:29,651 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2020-09-21 11:19:29,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-21 11:19:29,652 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:29,653 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:29,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:19:29,653 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:29,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:29,654 INFO L82 PathProgramCache]: Analyzing trace with hash -35294164, now seen corresponding path program 1 times [2020-09-21 11:19:29,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:29,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750759437] [2020-09-21 11:19:29,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:29,705 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:29,706 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:29,706 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:29,706 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:29,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:19:29,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:29,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 11:19:29,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:29,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:19:29,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:19:29,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:19:29,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:29,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:29,746 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:29,746 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:29,747 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:29,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:29,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:29,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:29,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:19:29,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:29,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:29,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:29,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:29,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:29,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:19:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:29,784 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:29,784 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:29,784 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:29,785 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:29,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:19:29,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:29,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 11:19:29,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:29,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:19:29,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:29,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:19:29,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:29,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:29,873 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:29,873 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:29,873 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:29,874 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:29,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:19:29,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:29,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 11:19:29,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:29,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:19:29,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:29,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:19:29,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:29,915 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:19:29,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750759437] [2020-09-21 11:19:29,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:19:29,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:19:29,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584766265] [2020-09-21 11:19:29,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:19:29,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:29,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:19:29,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:19:29,918 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 7 states. [2020-09-21 11:19:30,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:30,110 INFO L93 Difference]: Finished difference Result 52 states and 72 transitions. [2020-09-21 11:19:30,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:19:30,110 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-09-21 11:19:30,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:30,112 INFO L225 Difference]: With dead ends: 52 [2020-09-21 11:19:30,112 INFO L226 Difference]: Without dead ends: 34 [2020-09-21 11:19:30,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:19:30,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-21 11:19:30,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-09-21 11:19:30,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-21 11:19:30,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2020-09-21 11:19:30,124 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 20 [2020-09-21 11:19:30,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:30,124 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2020-09-21 11:19:30,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:19:30,125 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2020-09-21 11:19:30,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-21 11:19:30,126 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:30,127 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:30,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:19:30,127 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:30,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:30,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1261456781, now seen corresponding path program 2 times [2020-09-21 11:19:30,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:30,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820235202] [2020-09-21 11:19:30,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:30,185 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:30,185 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:30,186 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:30,186 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:30,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:19:30,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:30,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-21 11:19:30,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:30,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:19:30,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:19:30,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 11:19:30,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:30,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:30,217 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:30,218 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:30,218 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:30,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:30,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:30,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:30,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:19:30,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:30,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:30,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:30,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:30,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:30,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:19:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:30,270 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:30,270 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:30,271 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:30,271 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:30,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:19:30,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:30,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 11:19:30,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:30,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:19:30,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:30,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:19:30,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:30,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:30,324 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:30,324 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:30,325 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:30,325 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:30,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:19:30,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:30,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:19:30,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:30,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:19:30,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:30,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:19:30,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:30,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:30,358 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:30,358 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:30,358 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:30,359 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:30,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:19:30,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:30,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:19:30,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:30,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:19:30,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:30,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:19:30,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:30,384 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 11:19:30,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820235202] [2020-09-21 11:19:30,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:19:30,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:19:30,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877684917] [2020-09-21 11:19:30,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:19:30,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:30,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:19:30,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:19:30,387 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand 8 states. [2020-09-21 11:19:30,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:30,543 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2020-09-21 11:19:30,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:19:30,544 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2020-09-21 11:19:30,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:30,546 INFO L225 Difference]: With dead ends: 44 [2020-09-21 11:19:30,547 INFO L226 Difference]: Without dead ends: 40 [2020-09-21 11:19:30,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:19:30,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-21 11:19:30,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-09-21 11:19:30,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-21 11:19:30,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2020-09-21 11:19:30,562 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 27 [2020-09-21 11:19:30,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:30,562 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2020-09-21 11:19:30,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:19:30,565 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2020-09-21 11:19:30,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-21 11:19:30,567 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:30,567 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:30,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:19:30,568 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:30,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:30,569 INFO L82 PathProgramCache]: Analyzing trace with hash 2131329174, now seen corresponding path program 3 times [2020-09-21 11:19:30,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:30,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1763631144] [2020-09-21 11:19:30,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:30,661 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:30,661 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:30,661 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:30,662 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:30,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-21 11:19:30,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:30,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-21 11:19:30,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:30,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:19:30,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:19:30,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-21 11:19:30,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:30,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:30,693 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:30,693 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:30,693 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:30,693 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:30,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:30,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:30,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:19:30,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:30,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:30,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:30,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:30,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:30,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:19:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:30,765 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:30,765 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:30,765 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:30,766 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:30,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:19:30,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:30,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 11:19:30,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:30,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:19:30,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:30,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:19:30,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:30,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:30,822 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:30,822 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:30,822 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:30,823 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:30,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:19:30,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:30,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:19:30,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:30,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:19:30,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:30,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:19:30,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:30,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:30,865 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:30,865 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:30,866 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:30,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:30,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:19:30,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:30,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:19:30,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:30,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:19:30,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:30,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:19:30,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:30,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:30,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:30,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:30,894 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:30,894 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:30,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:19:30,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:30,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:19:30,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:30,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:19:30,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:30,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:19:30,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:30,915 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-21 11:19:30,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1763631144] [2020-09-21 11:19:30,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:19:30,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 11:19:30,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826996112] [2020-09-21 11:19:30,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:19:30,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:30,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:19:30,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:19:30,918 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 9 states. [2020-09-21 11:19:31,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:31,070 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2020-09-21 11:19:31,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:19:31,071 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2020-09-21 11:19:31,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:31,073 INFO L225 Difference]: With dead ends: 50 [2020-09-21 11:19:31,073 INFO L226 Difference]: Without dead ends: 46 [2020-09-21 11:19:31,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:19:31,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-21 11:19:31,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 38. [2020-09-21 11:19:31,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-21 11:19:31,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2020-09-21 11:19:31,086 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 34 [2020-09-21 11:19:31,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:31,086 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2020-09-21 11:19:31,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:19:31,087 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2020-09-21 11:19:31,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-21 11:19:31,088 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:31,089 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:31,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:19:31,089 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:31,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:31,090 INFO L82 PathProgramCache]: Analyzing trace with hash -867295607, now seen corresponding path program 4 times [2020-09-21 11:19:31,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:31,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1632132937] [2020-09-21 11:19:31,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:31,149 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:31,150 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:31,150 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:31,150 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:31,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:19:31,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:31,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 11:19:31,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:31,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:19:31,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:19:31,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-21 11:19:31,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 17 [2020-09-21 11:19:31,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:31,192 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:31,192 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:31,192 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:31,192 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:31,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:31,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:31,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:19:31,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:31,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:31,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:31,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:31,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:31,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:19:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:31,245 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:31,245 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:31,245 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:31,245 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:31,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:19:31,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:31,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-21 11:19:31,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:31,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:19:31,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:31,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 11:19:31,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:31,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:31,303 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:31,304 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:31,304 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:31,304 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:31,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:19:31,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:31,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-21 11:19:31,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:31,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:19:31,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:31,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:19:31,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:31,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:31,349 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:31,349 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:31,349 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:31,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:31,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:19:31,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:31,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:19:31,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:31,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:19:31,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:31,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:19:31,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:31,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:31,393 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:31,394 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:31,394 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:31,394 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:31,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:19:31,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:31,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:19:31,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:31,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:19:31,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:31,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:19:31,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:31,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:31,439 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:31,440 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:31,440 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:31,440 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:31,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:19:31,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:31,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:19:31,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:31,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:19:31,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:31,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:19:31,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:31,476 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 9 proven. 35 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-21 11:19:31,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1632132937] [2020-09-21 11:19:31,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:19:31,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-21 11:19:31,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819154844] [2020-09-21 11:19:31,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:19:31,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:31,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:19:31,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:19:31,480 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 11 states. [2020-09-21 11:19:31,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:31,640 INFO L93 Difference]: Finished difference Result 56 states and 67 transitions. [2020-09-21 11:19:31,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:19:31,641 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2020-09-21 11:19:31,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:31,642 INFO L225 Difference]: With dead ends: 56 [2020-09-21 11:19:31,643 INFO L226 Difference]: Without dead ends: 52 [2020-09-21 11:19:31,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2020-09-21 11:19:31,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-21 11:19:31,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2020-09-21 11:19:31,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-21 11:19:31,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2020-09-21 11:19:31,654 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 57 transitions. Word has length 41 [2020-09-21 11:19:31,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:31,655 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 57 transitions. [2020-09-21 11:19:31,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:19:31,655 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2020-09-21 11:19:31,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-21 11:19:31,657 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:31,657 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:31,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:19:31,658 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:31,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:31,658 INFO L82 PathProgramCache]: Analyzing trace with hash -943688704, now seen corresponding path program 5 times [2020-09-21 11:19:31,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:31,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [138270031] [2020-09-21 11:19:31,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:31,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:31,730 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:31,730 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:31,730 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:31,731 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:31,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-21 11:19:31,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:31,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-21 11:19:31,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:31,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-21 11:19:31,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:19:31,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:19:31,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:31,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:31,765 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:31,766 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:31,766 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:31,766 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:31,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:31,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:31,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:19:31,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:31,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:31,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:31,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:31,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:31,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:19:31,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:31,850 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:31,850 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:31,851 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:31,851 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:31,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:19:31,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:31,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-21 11:19:31,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:31,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-21 11:19:31,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:31,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:19:31,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:31,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:31,943 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:31,944 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:31,944 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:31,944 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:31,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:19:31,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:31,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 11:19:31,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:31,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:19:31,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:31,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 11:19:31,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:31,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:32,059 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:32,060 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:32,060 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:32,078 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:32,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:19:32,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:32,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-21 11:19:32,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:32,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:19:32,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:32,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:19:32,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:32,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:32,135 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:32,136 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:32,136 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:32,136 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:32,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:19:32,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:32,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:19:32,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:32,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:19:32,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:32,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:19:32,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:32,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:32,178 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:32,179 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:32,179 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:32,179 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:32,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:19:32,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:32,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:19:32,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:32,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:19:32,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:32,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:19:32,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:32,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:32,214 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:32,214 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:32,214 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:32,215 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:32,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:19:32,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:32,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:19:32,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:32,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:19:32,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:32,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:19:32,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:32,244 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 9 proven. 52 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-09-21 11:19:32,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [138270031] [2020-09-21 11:19:32,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:19:32,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-21 11:19:32,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850730744] [2020-09-21 11:19:32,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:19:32,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:32,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:19:32,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:19:32,248 INFO L87 Difference]: Start difference. First operand 46 states and 57 transitions. Second operand 11 states. [2020-09-21 11:19:32,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:32,478 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2020-09-21 11:19:32,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:19:32,479 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 48 [2020-09-21 11:19:32,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:32,481 INFO L225 Difference]: With dead ends: 62 [2020-09-21 11:19:32,481 INFO L226 Difference]: Without dead ends: 58 [2020-09-21 11:19:32,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-21 11:19:32,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-21 11:19:32,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 44. [2020-09-21 11:19:32,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-21 11:19:32,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2020-09-21 11:19:32,502 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 48 [2020-09-21 11:19:32,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:32,503 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2020-09-21 11:19:32,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:19:32,503 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2020-09-21 11:19:32,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-21 11:19:32,510 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:32,510 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:32,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:19:32,510 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:32,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:32,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1959654303, now seen corresponding path program 6 times [2020-09-21 11:19:32,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:32,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146957049] [2020-09-21 11:19:32,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:32,638 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:32,638 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:32,638 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:32,639 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:32,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-21 11:19:32,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:32,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-21 11:19:32,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 11:19:32,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:19:32,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-21 11:19:32,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:32,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:32,667 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:32,668 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:32,668 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:32,668 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:32,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:32,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:32,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:19:32,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:32,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:32,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:32,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:32,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:32,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:19:32,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:32,776 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:32,776 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:32,777 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:32,777 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:32,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-21 11:19:32,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:32,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-21 11:19:32,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:32,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 11:19:32,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:32,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:19:32,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:32,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:32,876 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:32,877 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:32,877 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:32,877 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:32,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:19:32,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:32,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-21 11:19:32,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:32,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:19:32,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:32,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:19:32,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:32,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:32,976 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:32,977 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:32,977 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:32,977 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:32,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:19:32,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:32,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-21 11:19:32,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:32,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:19:32,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:32,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 11:19:32,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:33,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:33,052 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:33,052 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:33,053 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:33,053 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:33,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:19:33,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:33,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-21 11:19:33,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:19:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:19:33,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:33,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:33,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:33,132 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:33,132 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:33,132 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:33,133 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:33,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:19:33,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:33,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 11:19:33,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:33,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:19:33,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:33,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:19:33,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:33,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:33,173 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:33,174 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:33,174 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:33,175 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:33,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:19:33,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:33,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:19:33,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:33,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:19:33,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:33,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:19:33,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:33,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:33,205 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:33,205 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:33,206 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:33,206 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:33,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:19:33,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:33,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:19:33,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:33,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:19:33,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:33,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:19:33,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:33,239 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 12 proven. 71 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-09-21 11:19:33,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146957049] [2020-09-21 11:19:33,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:19:33,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 11:19:33,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926757948] [2020-09-21 11:19:33,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:19:33,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:33,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:19:33,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:19:33,243 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand 12 states. [2020-09-21 11:19:33,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:33,433 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2020-09-21 11:19:33,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 11:19:33,433 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 55 [2020-09-21 11:19:33,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:33,439 INFO L225 Difference]: With dead ends: 51 [2020-09-21 11:19:33,439 INFO L226 Difference]: Without dead ends: 47 [2020-09-21 11:19:33,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2020-09-21 11:19:33,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-21 11:19:33,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-09-21 11:19:33,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-21 11:19:33,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2020-09-21 11:19:33,454 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 55 [2020-09-21 11:19:33,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:33,455 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2020-09-21 11:19:33,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:19:33,455 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2020-09-21 11:19:33,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-21 11:19:33,462 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:33,463 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:33,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:19:33,463 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:33,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:33,464 INFO L82 PathProgramCache]: Analyzing trace with hash 75083370, now seen corresponding path program 7 times [2020-09-21 11:19:33,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:33,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1695394049] [2020-09-21 11:19:33,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:33,599 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:33,599 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:33,599 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:33,599 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:33,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:19:33,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:33,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-21 11:19:33,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:33,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-21 11:19:33,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:19:33,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:19:33,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:33,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:33,632 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:33,632 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:33,633 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:33,633 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:33,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:33,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:33,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:19:33,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:33,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:33,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:33,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:33,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:33,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:19:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:33,737 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:33,737 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:33,737 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:33,738 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:33,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-21 11:19:33,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:33,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-21 11:19:33,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:33,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-21 11:19:33,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:33,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:19:33,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:33,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:33,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:33,860 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:33,861 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:33,861 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:33,861 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:33,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-21 11:19:33,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:33,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-21 11:19:33,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:33,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:19:33,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:33,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:19:33,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:33,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:33,951 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:33,952 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:33,952 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:33,952 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:33,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:19:33,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:33,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-21 11:19:33,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:33,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:19:33,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:33,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:19:33,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:33,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:34,033 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:34,034 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:34,034 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:34,034 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:34,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:19:34,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:34,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:19:34,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:34,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:19:34,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:34,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 11:19:34,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:34,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:34,095 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:34,096 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:34,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:34,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:34,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:19:34,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:34,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 11:19:34,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:34,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:19:34,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:34,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:19:34,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:34,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:34,163 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:34,163 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:34,164 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:34,164 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:34,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:19:34,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:34,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:19:34,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:34,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:19:34,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:34,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:19:34,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:34,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:34,202 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:34,203 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:34,203 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:34,204 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:34,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:19:34,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:34,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:19:34,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:34,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:19:34,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:34,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:19:34,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:34,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:34,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:34,236 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:34,236 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:34,237 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:34,237 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:34,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:19:34,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:34,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:19:34,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:34,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:19:34,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:34,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:19:34,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:34,272 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 12 proven. 104 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-09-21 11:19:34,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1695394049] [2020-09-21 11:19:34,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:19:34,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-21 11:19:34,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969636438] [2020-09-21 11:19:34,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 11:19:34,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:34,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 11:19:34,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:19:34,275 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand 13 states. [2020-09-21 11:19:34,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:34,463 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2020-09-21 11:19:34,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-21 11:19:34,464 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 62 [2020-09-21 11:19:34,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:34,465 INFO L225 Difference]: With dead ends: 74 [2020-09-21 11:19:34,465 INFO L226 Difference]: Without dead ends: 70 [2020-09-21 11:19:34,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-21 11:19:34,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-21 11:19:34,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 55. [2020-09-21 11:19:34,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-21 11:19:34,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 66 transitions. [2020-09-21 11:19:34,475 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 66 transitions. Word has length 62 [2020-09-21 11:19:34,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:34,476 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 66 transitions. [2020-09-21 11:19:34,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 11:19:34,476 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 66 transitions. [2020-09-21 11:19:34,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-21 11:19:34,477 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:34,477 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:34,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:19:34,478 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:34,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:34,478 INFO L82 PathProgramCache]: Analyzing trace with hash 980406709, now seen corresponding path program 8 times [2020-09-21 11:19:34,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:34,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2035066891] [2020-09-21 11:19:34,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:34,601 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:34,601 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:34,602 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:34,602 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:34,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-21 11:19:34,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:34,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-21 11:19:34,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:34,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-21 11:19:34,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:19:34,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-21 11:19:34,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:34,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:34,633 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:34,633 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:34,633 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:34,634 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:34,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:34,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:34,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:19:34,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:34,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:34,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:34,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:34,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:34,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:19:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:34,756 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:34,756 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:34,756 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:34,757 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:34,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:19:34,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:34,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-21 11:19:34,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:34,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-21 11:19:34,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:34,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:19:34,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:34,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:34,889 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:34,890 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:34,890 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:34,890 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:34,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-21 11:19:34,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:34,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-21 11:19:34,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:34,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:19:34,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:34,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:19:34,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:34,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:35,003 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:35,004 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:35,004 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:35,004 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:35,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-21 11:19:35,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:35,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-21 11:19:35,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:35,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:19:35,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:35,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:19:35,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:35,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:35,110 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:35,110 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:35,110 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:35,110 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:35,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:19:35,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:35,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-21 11:19:35,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:35,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:19:35,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:35,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:19:35,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:35,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:35,180 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:35,180 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:35,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:35,181 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:35,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:19:35,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:35,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-21 11:19:35,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:35,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:19:35,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:35,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 11:19:35,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:35,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:35,238 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:35,238 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:35,239 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:35,239 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:35,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:19:35,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:35,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 11:19:35,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:35,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:19:35,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:35,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:19:35,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:35,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:35,290 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:35,290 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:35,291 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:35,291 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:35,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:19:35,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:35,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:19:35,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:35,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:19:35,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:35,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:19:35,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:35,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:35,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:35,346 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:35,346 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:35,347 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:35,347 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:35,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:19:35,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:35,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:19:35,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:35,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:19:35,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:35,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:19:35,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:35,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:35,382 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:35,383 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:35,383 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:35,383 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:35,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:19:35,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:35,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:19:35,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:35,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:19:35,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:35,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:19:35,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:35,429 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 36 proven. 102 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-09-21 11:19:35,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2035066891] [2020-09-21 11:19:35,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:19:35,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-21 11:19:35,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153379020] [2020-09-21 11:19:35,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-21 11:19:35,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:35,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-21 11:19:35,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:19:35,432 INFO L87 Difference]: Start difference. First operand 55 states and 66 transitions. Second operand 14 states. [2020-09-21 11:19:35,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:35,644 INFO L93 Difference]: Finished difference Result 80 states and 92 transitions. [2020-09-21 11:19:35,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 11:19:35,644 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 69 [2020-09-21 11:19:35,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:35,646 INFO L225 Difference]: With dead ends: 80 [2020-09-21 11:19:35,646 INFO L226 Difference]: Without dead ends: 76 [2020-09-21 11:19:35,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:19:35,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-09-21 11:19:35,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 53. [2020-09-21 11:19:35,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-21 11:19:35,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2020-09-21 11:19:35,656 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 69 [2020-09-21 11:19:35,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:35,657 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2020-09-21 11:19:35,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-21 11:19:35,657 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2020-09-21 11:19:35,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-09-21 11:19:35,658 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:35,658 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:35,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:19:35,659 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:35,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:35,659 INFO L82 PathProgramCache]: Analyzing trace with hash -654012460, now seen corresponding path program 9 times [2020-09-21 11:19:35,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:35,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1246630576] [2020-09-21 11:19:35,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:35,807 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:35,807 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:35,808 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:35,808 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:35,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-09-21 11:19:35,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:35,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-21 11:19:35,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:35,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-21 11:19:35,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:19:35,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-21 11:19:35,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:35,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:35,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:35,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:35,839 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:35,839 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:35,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:35,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:35,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:19:35,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:35,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:35,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:35,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:35,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:35,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:19:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:35,981 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:35,981 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:35,981 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:35,982 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:35,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-21 11:19:35,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:35,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-21 11:19:35,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:35,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-21 11:19:35,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:35,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-21 11:19:35,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:36,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:36,206 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:36,207 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:36,207 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:36,207 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:36,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:19:36,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:36,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-21 11:19:36,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:36,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:19:36,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:36,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:19:36,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:36,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:36,350 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:36,350 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:36,350 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:36,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:36,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-21 11:19:36,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:36,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-21 11:19:36,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:36,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:19:36,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:36,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:19:36,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:36,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:36,457 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:36,458 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:36,458 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:36,458 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:36,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-21 11:19:36,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:36,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-21 11:19:36,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:36,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:19:36,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:36,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:19:36,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:36,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:36,551 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:36,552 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:36,552 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:36,552 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:36,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:19:36,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:36,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-21 11:19:36,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:36,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:19:36,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:36,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:19:36,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:36,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:36,629 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:36,630 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:36,630 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:36,630 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:36,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:19:36,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:36,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 11:19:36,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:36,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:19:36,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:36,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 11:19:36,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:36,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:36,699 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:36,700 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:36,700 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:36,701 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:36,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:19:36,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:36,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 11:19:36,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:36,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:19:36,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:36,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:19:36,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:36,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:36,759 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:36,760 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:36,760 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:36,761 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:36,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:19:36,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:36,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:19:36,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:19:36,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:36,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:19:36,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:36,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:36,818 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:36,819 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:36,819 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:36,820 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:36,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:19:36,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:36,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:19:36,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:36,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:19:36,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:36,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:19:36,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:36,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:36,865 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:36,865 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:36,866 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:36,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:36,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:19:36,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:36,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:19:36,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:36,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:19:36,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:36,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:19:36,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:36,930 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 45 proven. 141 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-09-21 11:19:36,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1246630576] [2020-09-21 11:19:36,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:19:36,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-21 11:19:36,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339137935] [2020-09-21 11:19:36,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-21 11:19:36,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:36,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-21 11:19:36,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:19:36,934 INFO L87 Difference]: Start difference. First operand 53 states and 61 transitions. Second operand 15 states. [2020-09-21 11:19:37,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:37,232 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2020-09-21 11:19:37,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 11:19:37,233 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 76 [2020-09-21 11:19:37,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:37,234 INFO L225 Difference]: With dead ends: 60 [2020-09-21 11:19:37,234 INFO L226 Difference]: Without dead ends: 56 [2020-09-21 11:19:37,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-21 11:19:37,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-21 11:19:37,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-09-21 11:19:37,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-21 11:19:37,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2020-09-21 11:19:37,252 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 76 [2020-09-21 11:19:37,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:37,258 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2020-09-21 11:19:37,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-21 11:19:37,259 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2020-09-21 11:19:37,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 11:19:37,261 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:37,261 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:37,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:19:37,262 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:37,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:37,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1057728309, now seen corresponding path program 10 times [2020-09-21 11:19:37,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:37,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361379644] [2020-09-21 11:19:37,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:37,467 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:37,467 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:37,467 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:37,468 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:37,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-21 11:19:37,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:37,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-09-21 11:19:37,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:37,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-21 11:19:37,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:19:37,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-21 11:19:37,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:37,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:37,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:37,500 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:37,501 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:37,501 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:37,501 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:37,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:37,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:37,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:19:37,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:37,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:37,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:37,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:37,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:19:37,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:19:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:37,675 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:37,676 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:37,676 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:37,676 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:37,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:19:37,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:37,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-21 11:19:37,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:37,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-21 11:19:37,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:37,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 11:19:37,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:37,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:37,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:37,880 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:37,880 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:37,881 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:37,881 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:37,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-21 11:19:37,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:37,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-21 11:19:37,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:37,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:19:37,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:37,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-21 11:19:37,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:37,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:38,071 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:38,072 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:38,072 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:38,073 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:38,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:19:38,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:38,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-21 11:19:38,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:38,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:19:38,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:38,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:19:38,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:38,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:38,221 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:38,221 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:38,222 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:38,222 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:38,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-21 11:19:38,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:38,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-21 11:19:38,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:38,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:19:38,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:38,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:19:38,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:38,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:38,334 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:38,334 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:38,334 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:38,335 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:38,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-21 11:19:38,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:38,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-21 11:19:38,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:38,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:19:38,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:38,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:19:38,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:38,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:38,440 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:38,441 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:38,441 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:38,441 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:38,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:19:38,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:38,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-21 11:19:38,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:38,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:19:38,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:38,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:19:38,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:38,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:38,519 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:38,520 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:38,520 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:38,520 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:38,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:19:38,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:38,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:19:38,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:38,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:19:38,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:38,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 11:19:38,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:38,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:38,581 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:38,581 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:38,581 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:38,582 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:38,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:19:38,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:38,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 11:19:38,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:38,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:19:38,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:38,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:19:38,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:38,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:38,634 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:38,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:38,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:38,635 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:38,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:19:38,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:38,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:19:38,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:38,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:19:38,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:38,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:19:38,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:38,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:38,680 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:38,681 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:38,681 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:38,681 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:38,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:19:38,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:38,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:19:38,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:38,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:19:38,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:38,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:19:38,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:38,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:38,715 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:38,716 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:38,716 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:38,717 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:38,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:19:38,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:38,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:19:38,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:38,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:19:38,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:38,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:19:38,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:38,795 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 39 proven. 192 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-09-21 11:19:38,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361379644] [2020-09-21 11:19:38,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:19:38,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-21 11:19:38,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688280100] [2020-09-21 11:19:38,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-21 11:19:38,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:38,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-21 11:19:38,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-21 11:19:38,798 INFO L87 Difference]: Start difference. First operand 56 states and 64 transitions. Second operand 16 states. [2020-09-21 11:19:39,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:39,026 INFO L93 Difference]: Finished difference Result 63 states and 71 transitions. [2020-09-21 11:19:39,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 11:19:39,027 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 83 [2020-09-21 11:19:39,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:39,028 INFO L225 Difference]: With dead ends: 63 [2020-09-21 11:19:39,028 INFO L226 Difference]: Without dead ends: 59 [2020-09-21 11:19:39,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-09-21 11:19:39,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-21 11:19:39,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-21 11:19:39,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-21 11:19:39,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 67 transitions. [2020-09-21 11:19:39,045 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 67 transitions. Word has length 83 [2020-09-21 11:19:39,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:39,045 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 67 transitions. [2020-09-21 11:19:39,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-21 11:19:39,046 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 67 transitions. [2020-09-21 11:19:39,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-09-21 11:19:39,047 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:39,050 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:39,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:19:39,050 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:39,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:39,051 INFO L82 PathProgramCache]: Analyzing trace with hash -2104461250, now seen corresponding path program 11 times [2020-09-21 11:19:39,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:39,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27796396] [2020-09-21 11:19:39,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:39,248 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:39,249 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:39,249 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:39,249 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:39,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-21 11:19:39,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:39,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-21 11:19:39,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:39,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-21 11:19:39,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:19:39,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-21 11:19:39,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:39,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:39,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:39,285 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:39,285 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:39,285 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:39,286 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:39,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:39,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:39,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:19:39,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:39,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:39,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:39,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:39,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:39,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:19:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:39,473 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:39,473 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:39,473 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:39,474 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:39,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-21 11:19:39,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:39,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-21 11:19:39,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:39,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-21 11:19:39,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:39,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-21 11:19:39,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:39,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:39,674 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:39,674 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:39,674 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:39,674 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:39,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:19:39,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:39,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-21 11:19:39,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:39,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:19:39,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:39,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 11:19:39,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:39,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:39,846 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:39,847 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:39,847 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:39,847 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:39,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-21 11:19:39,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:39,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-21 11:19:39,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:39,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:19:39,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:39,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-21 11:19:39,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:39,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:40,028 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:40,029 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:40,029 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:40,029 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:40,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:19:40,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:40,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-21 11:19:40,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:40,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:19:40,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:40,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:19:40,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:40,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:40,162 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:40,162 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:40,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:40,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:40,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-21 11:19:40,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:40,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-21 11:19:40,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:40,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:19:40,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:40,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:19:40,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:40,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:40,268 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:40,269 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:40,269 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:40,269 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:40,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-21 11:19:40,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:40,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-21 11:19:40,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:40,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:19:40,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:40,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:19:40,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:40,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:40,349 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:40,349 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:40,350 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:40,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:40,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:19:40,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:40,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 11:19:40,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:40,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:19:40,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:40,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:19:40,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:40,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:40,419 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:40,419 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:40,420 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:40,420 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:40,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:19:40,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:40,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 11:19:40,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:40,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:19:40,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:40,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 11:19:40,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:40,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:40,480 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:40,480 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:40,481 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:40,481 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:40,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:19:40,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:40,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 11:19:40,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:40,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:19:40,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:40,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:19:40,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:40,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:40,533 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:40,534 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:40,534 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:40,535 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:40,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:19:40,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:40,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 11:19:40,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:40,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:19:40,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:40,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:19:40,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:40,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:40,575 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:40,576 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:40,576 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:40,577 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:40,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:19:40,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:40,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:19:40,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:40,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:19:40,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:40,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:19:40,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:40,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:40,609 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:40,610 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:40,610 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:40,610 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:40,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:19:40,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:40,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:19:40,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:40,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:19:40,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:40,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:19:40,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:40,668 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 27 proven. 235 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2020-09-21 11:19:40,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [27796396] [2020-09-21 11:19:40,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:19:40,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-21 11:19:40,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241441256] [2020-09-21 11:19:40,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-21 11:19:40,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:40,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-21 11:19:40,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-21 11:19:40,672 INFO L87 Difference]: Start difference. First operand 59 states and 67 transitions. Second operand 17 states. [2020-09-21 11:19:40,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:40,912 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2020-09-21 11:19:40,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-21 11:19:40,913 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 90 [2020-09-21 11:19:40,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:40,915 INFO L225 Difference]: With dead ends: 66 [2020-09-21 11:19:40,915 INFO L226 Difference]: Without dead ends: 62 [2020-09-21 11:19:40,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-21 11:19:40,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-21 11:19:40,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-09-21 11:19:40,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-21 11:19:40,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2020-09-21 11:19:40,928 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 90 [2020-09-21 11:19:40,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:40,928 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2020-09-21 11:19:40,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-21 11:19:40,929 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2020-09-21 11:19:40,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-09-21 11:19:40,931 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:40,932 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:40,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-21 11:19:40,933 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:40,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:40,933 INFO L82 PathProgramCache]: Analyzing trace with hash 565979361, now seen corresponding path program 12 times [2020-09-21 11:19:40,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:40,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305804972] [2020-09-21 11:19:40,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:41,190 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:41,190 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:41,190 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:41,190 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:41,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:19:41,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:41,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-21 11:19:41,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:41,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-21 11:19:41,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:19:41,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-21 11:19:41,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:41,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:41,228 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:41,229 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:41,229 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:41,229 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:41,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:41,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:41,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:19:41,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:41,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:41,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:41,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:41,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:41,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:19:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:41,455 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:41,456 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:41,456 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:41,456 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:41,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 11:19:41,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:41,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-09-21 11:19:41,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:41,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-21 11:19:41,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:41,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-21 11:19:41,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:41,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:41,684 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:41,684 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:41,684 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:41,685 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:41,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-21 11:19:41,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:41,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-21 11:19:41,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:41,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:19:41,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:41,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-21 11:19:41,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:41,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:41,886 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:41,887 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:41,887 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:41,887 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:41,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:19:41,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:41,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-21 11:19:41,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:41,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:19:41,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:41,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 11:19:41,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:41,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:42,072 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:42,072 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:42,073 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:42,073 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:42,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-21 11:19:42,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:42,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-21 11:19:42,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:42,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:19:42,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:42,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-21 11:19:42,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:42,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:42,229 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:42,230 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:42,230 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:42,231 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:42,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:19:42,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:42,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-21 11:19:42,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:42,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:19:42,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:42,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:19:42,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:42,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:42,372 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:42,373 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:42,373 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:42,373 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:42,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-21 11:19:42,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:42,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-21 11:19:42,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:42,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:19:42,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:42,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:19:42,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:42,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:42,469 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:42,469 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:42,469 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:42,470 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:42,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-21 11:19:42,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:42,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-21 11:19:42,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:42,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:19:42,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:42,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:19:42,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:42,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:42,552 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:42,552 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:42,553 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:42,553 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:42,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:19:42,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:42,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 11:19:42,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:42,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:19:42,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:42,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:19:42,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:42,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:42,621 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:42,621 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:42,621 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:42,622 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:42,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:19:42,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:42,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 11:19:42,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:42,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:19:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 11:19:42,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:42,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:42,680 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:42,680 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:42,680 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:42,681 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:42,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:19:42,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:42,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 11:19:42,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:42,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:19:42,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:42,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:19:42,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:42,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:42,728 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:42,728 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:42,728 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:42,729 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:42,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:19:42,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:42,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:19:42,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:42,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:19:42,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:42,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:19:42,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:42,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:42,767 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:42,768 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:42,768 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:42,768 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:42,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:19:42,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:42,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:19:42,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:42,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:19:42,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:42,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:19:42,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:42,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:42,831 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:42,831 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:42,832 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:42,832 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:42,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:19:42,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:42,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:19:42,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:42,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:19:42,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:42,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:19:42,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:42,894 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 6 proven. 278 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2020-09-21 11:19:42,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1305804972] [2020-09-21 11:19:42,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:19:42,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-21 11:19:42,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182127477] [2020-09-21 11:19:42,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-21 11:19:42,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:42,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-21 11:19:42,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-09-21 11:19:42,897 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand 18 states. [2020-09-21 11:19:43,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:43,163 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2020-09-21 11:19:43,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-21 11:19:43,164 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2020-09-21 11:19:43,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:43,165 INFO L225 Difference]: With dead ends: 69 [2020-09-21 11:19:43,165 INFO L226 Difference]: Without dead ends: 65 [2020-09-21 11:19:43,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2020-09-21 11:19:43,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-21 11:19:43,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-09-21 11:19:43,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-09-21 11:19:43,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2020-09-21 11:19:43,172 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 97 [2020-09-21 11:19:43,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:43,172 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions. [2020-09-21 11:19:43,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-21 11:19:43,173 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2020-09-21 11:19:43,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-21 11:19:43,174 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:43,174 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:43,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-21 11:19:43,174 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:43,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:43,175 INFO L82 PathProgramCache]: Analyzing trace with hash -106117208, now seen corresponding path program 13 times [2020-09-21 11:19:43,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:43,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552825467] [2020-09-21 11:19:43,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:43,416 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:43,416 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:43,416 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:43,416 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:43,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-09-21 11:19:43,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:43,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-21 11:19:43,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:43,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-21 11:19:43,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:19:43,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-21 11:19:43,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:43,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:43,461 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:43,461 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:43,462 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:43,462 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:43,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:43,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:43,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:19:43,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:43,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:43,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:43,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:43,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:43,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:19:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:43,689 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:43,689 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:43,689 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:43,690 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:43,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-21 11:19:43,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:43,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-21 11:19:43,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:43,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-21 11:19:43,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:43,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-21 11:19:43,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:43,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:43,964 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:43,964 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:43,964 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:43,964 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:43,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 11:19:43,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:43,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-21 11:19:43,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:43,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:19:43,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:43,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-21 11:19:43,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:44,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:44,201 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:44,201 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:44,201 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:44,202 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:44,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-21 11:19:44,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:44,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-21 11:19:44,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:44,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:19:44,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:44,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-21 11:19:44,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:44,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:44,418 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:44,419 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:44,419 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:44,420 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:44,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:19:44,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:44,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-21 11:19:44,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:44,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:19:44,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:44,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 11:19:44,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:44,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:44,576 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:44,577 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:44,577 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:44,577 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:44,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-21 11:19:44,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:44,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-21 11:19:44,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:44,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:19:44,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:44,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-21 11:19:44,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:44,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:44,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:44,717 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:44,718 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:44,718 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:44,718 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:44,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:19:44,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:44,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-21 11:19:44,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:44,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:19:44,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:44,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:19:44,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:44,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:44,847 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:44,848 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:44,848 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:44,849 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:44,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-21 11:19:44,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:44,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-21 11:19:44,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:44,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:19:44,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:44,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:19:44,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:44,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:44,962 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:44,963 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:44,963 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:44,963 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:44,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-21 11:19:44,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:44,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-21 11:19:44,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:44,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:19:44,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:44,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:19:44,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:44,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:45,045 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:45,046 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:45,046 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:45,047 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:45,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:19:45,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:45,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:19:45,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:45,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:19:45,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:45,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:19:45,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:45,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:45,117 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:45,118 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:45,118 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:45,118 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:45,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:19:45,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:45,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 11:19:45,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:45,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:19:45,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:45,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 11:19:45,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:45,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:45,175 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:45,175 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:45,176 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:45,176 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:45,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:19:45,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:45,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 11:19:45,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:45,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:19:45,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:45,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:19:45,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:45,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:45,220 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:45,221 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:45,221 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:45,222 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:45,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:19:45,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:45,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:19:45,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:45,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:19:45,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:45,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:19:45,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:45,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:45,261 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:45,262 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:45,262 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:45,262 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:45,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:19:45,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:45,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:19:45,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:45,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:19:45,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:45,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:19:45,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:45,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:45,297 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:45,297 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:45,297 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:45,298 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:45,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:19:45,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:45,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:19:45,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:45,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:19:45,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:45,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:19:45,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:45,379 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 30 proven. 355 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2020-09-21 11:19:45,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [552825467] [2020-09-21 11:19:45,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:19:45,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-21 11:19:45,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496236475] [2020-09-21 11:19:45,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-21 11:19:45,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:45,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-21 11:19:45,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=215, Unknown=0, NotChecked=0, Total=342 [2020-09-21 11:19:45,382 INFO L87 Difference]: Start difference. First operand 65 states and 73 transitions. Second operand 19 states. [2020-09-21 11:19:45,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:45,666 INFO L93 Difference]: Finished difference Result 72 states and 80 transitions. [2020-09-21 11:19:45,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-21 11:19:45,666 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 104 [2020-09-21 11:19:45,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:45,668 INFO L225 Difference]: With dead ends: 72 [2020-09-21 11:19:45,668 INFO L226 Difference]: Without dead ends: 68 [2020-09-21 11:19:45,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=379, Invalid=677, Unknown=0, NotChecked=0, Total=1056 [2020-09-21 11:19:45,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-21 11:19:45,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-21 11:19:45,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-21 11:19:45,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2020-09-21 11:19:45,675 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 104 [2020-09-21 11:19:45,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:45,675 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2020-09-21 11:19:45,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-21 11:19:45,675 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2020-09-21 11:19:45,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-21 11:19:45,676 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:45,677 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:45,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-21 11:19:45,677 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:45,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:45,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1237836279, now seen corresponding path program 14 times [2020-09-21 11:19:45,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:45,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702234990] [2020-09-21 11:19:45,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:45,943 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:45,943 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:45,943 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:45,944 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:45,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-09-21 11:19:45,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:45,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-21 11:19:45,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:45,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-21 11:19:45,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:19:45,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-21 11:19:45,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:45,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:45,979 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:45,980 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:45,980 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:45,980 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:45,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:45,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:45,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:19:45,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:45,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:45,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:45,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:45,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:45,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:19:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:46,216 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:46,217 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:46,217 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:46,217 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:46,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-21 11:19:46,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:46,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-21 11:19:46,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:46,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-21 11:19:46,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:46,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-21 11:19:46,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:46,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:46,514 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:46,514 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:46,515 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:46,515 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:46,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-21 11:19:46,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:46,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-21 11:19:46,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:19:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-21 11:19:46,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:46,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:46,803 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:46,804 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:46,804 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:46,804 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:46,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 11:19:46,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:46,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-21 11:19:46,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:46,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:19:46,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:46,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-21 11:19:46,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:46,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:47,044 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:47,044 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:47,044 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:47,044 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:47,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-21 11:19:47,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:47,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-21 11:19:47,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:19:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-21 11:19:47,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:47,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:47,251 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:47,251 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:47,251 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:47,252 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:47,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:19:47,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:47,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-21 11:19:47,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:47,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:19:47,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:47,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 11:19:47,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:47,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:47,431 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:47,432 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:47,432 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:47,432 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:47,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-21 11:19:47,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:47,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-21 11:19:47,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:47,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:19:47,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:47,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-21 11:19:47,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:47,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:47,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:47,650 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:47,652 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:47,652 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:47,653 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:47,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:19:47,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:47,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-21 11:19:47,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:47,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:19:47,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:47,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:19:47,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:47,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:47,766 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:47,766 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:47,766 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:47,767 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:47,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-21 11:19:47,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:47,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-21 11:19:47,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:47,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:19:47,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:47,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:19:47,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:47,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:47,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:47,854 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:47,855 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:47,855 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:47,856 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:47,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-21 11:19:47,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:47,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-21 11:19:47,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:47,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:19:47,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:47,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:19:47,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:47,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:47,950 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:47,950 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:47,950 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:47,951 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:47,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:19:47,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:47,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 11:19:47,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:47,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:19:47,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:47,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:19:47,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:47,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:47,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:48,019 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:48,020 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:48,020 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:48,021 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:48,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:19:48,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:48,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 11:19:48,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:48,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:19:48,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:48,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 11:19:48,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:48,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:48,079 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:48,080 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:48,080 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:48,081 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:48,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:19:48,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:48,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 11:19:48,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:48,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:19:48,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:48,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:19:48,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:48,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:48,134 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:48,134 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:48,135 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:48,135 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:48,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:19:48,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:48,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:19:48,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:48,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:19:48,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:48,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:19:48,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:48,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:48,181 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:48,182 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:48,182 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:48,183 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:48,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:19:48,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:48,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:19:48,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:48,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:19:48,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:48,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:19:48,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:19:48,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:48,222 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:48,223 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:48,223 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:48,224 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:48,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:19:48,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:48,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:19:48,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:48,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:19:48,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:48,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:19:48,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:48,314 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 78 proven. 373 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2020-09-21 11:19:48,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702234990] [2020-09-21 11:19:48,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:19:48,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-21 11:19:48,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475030295] [2020-09-21 11:19:48,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-21 11:19:48,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:48,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-21 11:19:48,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=237, Unknown=0, NotChecked=0, Total=380 [2020-09-21 11:19:48,316 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand 20 states. [2020-09-21 11:19:48,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:48,634 INFO L93 Difference]: Finished difference Result 116 states and 127 transitions. [2020-09-21 11:19:48,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 11:19:48,635 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 111 [2020-09-21 11:19:48,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:48,637 INFO L225 Difference]: With dead ends: 116 [2020-09-21 11:19:48,637 INFO L226 Difference]: Without dead ends: 112 [2020-09-21 11:19:48,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=428, Invalid=762, Unknown=0, NotChecked=0, Total=1190 [2020-09-21 11:19:48,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-21 11:19:48,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 76. [2020-09-21 11:19:48,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-21 11:19:48,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 87 transitions. [2020-09-21 11:19:48,651 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 87 transitions. Word has length 111 [2020-09-21 11:19:48,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:48,651 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 87 transitions. [2020-09-21 11:19:48,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-21 11:19:48,651 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 87 transitions. [2020-09-21 11:19:48,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-09-21 11:19:48,655 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:48,655 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:48,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-21 11:19:48,656 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:48,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:48,656 INFO L82 PathProgramCache]: Analyzing trace with hash 340319762, now seen corresponding path program 15 times [2020-09-21 11:19:48,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:48,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164362067] [2020-09-21 11:19:48,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:48,974 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:48,975 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:48,975 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:48,975 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:48,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-09-21 11:19:48,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:48,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-09-21 11:19:48,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:48,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-21 11:19:48,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:19:48,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-09-21 11:19:48,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:49,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:49,059 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:49,059 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:49,060 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:49,060 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:49,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:49,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:49,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:19:49,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:49,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:49,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:49,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:49,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:49,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:19:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:49,358 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:49,358 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:49,358 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:49,359 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:49,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-21 11:19:49,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:49,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-09-21 11:19:49,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:49,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-21 11:19:49,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:49,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-09-21 11:19:49,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:49,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:49,672 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:49,672 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:49,672 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:49,673 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:49,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-21 11:19:49,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:49,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-09-21 11:19:49,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:49,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:19:49,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:49,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-21 11:19:49,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:49,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:49,945 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:49,945 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:49,945 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:49,945 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:49,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-21 11:19:49,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:49,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-09-21 11:19:49,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:49,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:19:49,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:49,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-21 11:19:49,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:49,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:50,200 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:50,201 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:50,201 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:50,201 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:50,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 11:19:50,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:50,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-09-21 11:19:50,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:50,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:19:50,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:50,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-21 11:19:50,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:50,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:50,408 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:50,409 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:50,409 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:50,409 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:50,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-21 11:19:50,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:50,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-21 11:19:50,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:50,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:19:50,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:50,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-21 11:19:50,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:50,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:50,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:50,572 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:50,573 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:50,573 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:50,573 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:50,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:19:50,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:50,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-21 11:19:50,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:50,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:19:50,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:50,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 11:19:50,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:50,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:50,720 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:50,720 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:50,720 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:50,721 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:50,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-21 11:19:50,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:50,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-21 11:19:50,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:50,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:19:50,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:50,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-21 11:19:50,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:50,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:50,836 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:50,837 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:50,837 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:50,837 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:50,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:19:50,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:50,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-21 11:19:50,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:50,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:19:50,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:50,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:19:50,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:50,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:51,005 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:51,006 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:51,006 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:51,007 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:51,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-21 11:19:51,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:51,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-21 11:19:51,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:51,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:19:51,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:51,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:19:51,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:51,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:51,111 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:51,112 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:51,112 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:51,113 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:51,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-21 11:19:51,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:51,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-21 11:19:51,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:51,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:19:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:19:51,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:51,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:51,201 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:51,202 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:51,203 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:51,203 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:51,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:19:51,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:51,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 11:19:51,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:51,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:19:51,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:51,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:19:51,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:51,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:51,276 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:51,277 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:51,277 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:51,277 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:51,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:19:51,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:51,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-21 11:19:51,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:51,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:19:51,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:51,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 11:19:51,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:51,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:51,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:51,329 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:51,330 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:51,330 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:51,331 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:51,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:19:51,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:51,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 11:19:51,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:51,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:19:51,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:51,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:19:51,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:51,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:51,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:51,374 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:51,375 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:51,375 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:51,376 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:51,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:19:51,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:51,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:19:51,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:51,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:19:51,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:51,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:19:51,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:51,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:51,413 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:51,414 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:51,414 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:51,414 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:51,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:19:51,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:51,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:19:51,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:51,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:19:51,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:51,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:19:51,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:51,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:51,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:51,449 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:51,450 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:51,450 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:51,450 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:51,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:19:51,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:51,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:19:51,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:51,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:19:51,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:51,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:19:51,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:51,530 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 29 proven. 459 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2020-09-21 11:19:51,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [164362067] [2020-09-21 11:19:51,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:19:51,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-21 11:19:51,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904138679] [2020-09-21 11:19:51,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-21 11:19:51,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:51,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-21 11:19:51,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=260, Unknown=0, NotChecked=0, Total=420 [2020-09-21 11:19:51,533 INFO L87 Difference]: Start difference. First operand 76 states and 87 transitions. Second operand 21 states. [2020-09-21 11:19:51,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:51,866 INFO L93 Difference]: Finished difference Result 83 states and 94 transitions. [2020-09-21 11:19:51,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 11:19:51,867 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 118 [2020-09-21 11:19:51,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:51,868 INFO L225 Difference]: With dead ends: 83 [2020-09-21 11:19:51,868 INFO L226 Difference]: Without dead ends: 79 [2020-09-21 11:19:51,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=480, Invalid=852, Unknown=0, NotChecked=0, Total=1332 [2020-09-21 11:19:51,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-21 11:19:51,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-09-21 11:19:51,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-21 11:19:51,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 90 transitions. [2020-09-21 11:19:51,875 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 90 transitions. Word has length 118 [2020-09-21 11:19:51,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:51,875 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 90 transitions. [2020-09-21 11:19:51,875 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-21 11:19:51,875 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 90 transitions. [2020-09-21 11:19:51,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-09-21 11:19:51,877 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:51,877 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:51,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-21 11:19:51,877 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:51,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:51,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1471685645, now seen corresponding path program 16 times [2020-09-21 11:19:51,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:51,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456753744] [2020-09-21 11:19:51,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:52,162 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:52,163 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:52,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:52,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:52,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-21 11:19:52,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:52,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-09-21 11:19:52,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:52,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-09-21 11:19:52,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:19:52,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-21 11:19:52,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:52,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:52,197 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:52,198 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:52,198 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:52,198 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:52,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:52,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:52,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:19:52,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:52,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:52,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:52,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:52,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:52,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:19:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:52,573 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:52,573 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:52,574 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:52,574 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:52,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-21 11:19:52,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:52,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-09-21 11:19:52,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:52,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-09-21 11:19:52,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:52,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-21 11:19:52,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:52,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:52,970 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:52,970 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:52,970 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:52,970 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:52,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-21 11:19:52,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:52,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-09-21 11:19:52,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:52,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:19:52,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:52,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-09-21 11:19:52,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:53,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:53,278 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:53,279 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:53,279 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:53,279 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:53,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-21 11:19:53,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:53,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-21 11:19:53,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:53,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:19:53,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:53,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-21 11:19:53,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:53,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:53,532 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:53,532 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:53,532 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:53,532 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:53,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-21 11:19:53,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:53,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-21 11:19:53,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:53,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:19:53,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:53,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-21 11:19:53,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:53,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:53,722 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:53,723 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:53,723 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:53,723 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:53,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 11:19:53,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:53,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-21 11:19:53,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:53,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:19:53,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:53,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-21 11:19:53,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:53,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:53,931 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:53,931 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:53,932 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:53,932 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:53,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-21 11:19:53,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:53,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-21 11:19:53,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:53,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:19:53,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:53,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-21 11:19:53,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:53,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:54,115 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:54,116 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:54,116 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:54,116 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:54,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:19:54,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:54,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-21 11:19:54,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:54,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:19:54,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:54,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 11:19:54,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:54,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:54,258 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:54,259 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:54,259 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:54,259 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:54,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-21 11:19:54,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:54,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-21 11:19:54,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:54,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:19:54,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:54,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-21 11:19:54,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:54,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:54,380 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:54,380 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:54,381 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:54,381 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:54,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:19:54,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:54,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-21 11:19:54,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:54,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:19:54,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:54,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:19:54,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:54,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:54,497 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:54,498 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:54,498 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:54,498 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:54,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-21 11:19:54,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:54,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-21 11:19:54,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:54,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:19:54,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:54,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:19:54,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:54,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:54,618 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:54,619 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:54,619 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:54,619 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:54,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-21 11:19:54,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:54,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 11:19:54,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:54,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:19:54,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:54,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:19:54,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:54,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:54,692 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:54,692 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:54,692 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:54,693 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:54,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:19:54,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:54,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 11:19:54,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:54,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:19:54,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:54,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:19:54,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:54,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:54,762 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:54,763 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:54,763 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:54,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:54,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:19:54,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:54,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-21 11:19:54,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:19:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 11:19:54,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:54,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:54,826 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:54,826 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:54,826 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:54,827 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:54,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:19:54,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:54,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:19:54,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:54,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:19:54,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:54,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:19:54,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:54,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:54,869 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:54,869 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:54,870 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:54,870 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:54,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:19:54,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:54,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:19:54,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:54,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:19:54,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:54,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:19:54,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:54,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:54,911 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:54,912 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:54,912 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:54,913 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:54,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:19:54,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:54,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:19:54,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:54,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:19:54,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:54,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:19:54,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:54,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:54,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:54,984 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:54,984 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:54,985 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:54,985 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:54,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:19:54,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:54,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:19:54,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:54,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:19:54,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:54,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:19:54,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:55,104 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 43 proven. 566 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-09-21 11:19:55,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456753744] [2020-09-21 11:19:55,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:19:55,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-21 11:19:55,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371855427] [2020-09-21 11:19:55,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-21 11:19:55,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:55,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-21 11:19:55,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=322, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:19:55,106 INFO L87 Difference]: Start difference. First operand 79 states and 90 transitions. Second operand 23 states. [2020-09-21 11:19:55,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:55,545 INFO L93 Difference]: Finished difference Result 86 states and 97 transitions. [2020-09-21 11:19:55,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-21 11:19:55,546 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 125 [2020-09-21 11:19:55,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:55,547 INFO L225 Difference]: With dead ends: 86 [2020-09-21 11:19:55,547 INFO L226 Difference]: Without dead ends: 82 [2020-09-21 11:19:55,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=558, Invalid=1002, Unknown=0, NotChecked=0, Total=1560 [2020-09-21 11:19:55,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-21 11:19:55,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-09-21 11:19:55,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-21 11:19:55,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions. [2020-09-21 11:19:55,558 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 93 transitions. Word has length 125 [2020-09-21 11:19:55,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:55,559 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 93 transitions. [2020-09-21 11:19:55,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-21 11:19:55,559 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 93 transitions. [2020-09-21 11:19:55,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-21 11:19:55,560 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:55,561 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:55,561 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-21 11:19:55,561 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:55,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:55,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1481368708, now seen corresponding path program 17 times [2020-09-21 11:19:55,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:55,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [69089637] [2020-09-21 11:19:55,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:55,878 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:55,878 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:55,878 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:55,879 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:55,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-21 11:19:55,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:55,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-09-21 11:19:55,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:55,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-09-21 11:19:55,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:19:55,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-09-21 11:19:55,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:55,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:55,915 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:55,915 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:55,916 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:55,916 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:55,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:55,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:55,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:19:55,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:55,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:55,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:55,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:55,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:55,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:19:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:56,339 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:56,339 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:56,339 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:56,339 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:56,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-21 11:19:56,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:56,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 383 [2020-09-21 11:19:56,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:56,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-09-21 11:19:56,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:56,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-09-21 11:19:56,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:56,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:56,808 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:56,808 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:56,809 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:56,809 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:56,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-21 11:19:56,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:56,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-09-21 11:19:56,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:56,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-21 11:19:56,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:56,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-21 11:19:56,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:56,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:57,166 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:57,166 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:57,166 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:57,167 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:57,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-21 11:19:57,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:57,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-09-21 11:19:57,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:57,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:19:57,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:57,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-09-21 11:19:57,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:57,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:57,511 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:57,511 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:57,511 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:57,512 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:57,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-21 11:19:57,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:57,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-09-21 11:19:57,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:57,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:19:57,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:57,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-21 11:19:57,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:57,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:57,779 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:57,779 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:57,779 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:57,780 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:57,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-21 11:19:57,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:57,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-09-21 11:19:57,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:57,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:19:57,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:57,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-21 11:19:57,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:57,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:58,010 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:58,010 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:58,010 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:58,011 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:58,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 11:19:58,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:58,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-21 11:19:58,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:58,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:19:58,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:58,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-21 11:19:58,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:58,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:58,213 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:58,214 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:58,214 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:58,214 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:58,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-21 11:19:58,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:58,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-21 11:19:58,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:58,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:19:58,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:58,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-21 11:19:58,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:58,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:58,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:58,404 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:58,405 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:58,405 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:58,405 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:58,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:19:58,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:58,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-21 11:19:58,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:58,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:19:58,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:58,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 11:19:58,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:58,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:58,578 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:58,578 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:58,578 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:58,578 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:58,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-21 11:19:58,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:58,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-21 11:19:58,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:58,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:19:58,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:58,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-21 11:19:58,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:58,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:58,745 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:58,746 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:58,746 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:58,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:58,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:19:58,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:58,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-21 11:19:58,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:58,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:19:58,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:58,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:19:58,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:58,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:58,857 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:58,858 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:58,858 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:58,858 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:58,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-21 11:19:58,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:58,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-21 11:19:58,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:58,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:19:58,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:58,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:19:58,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:58,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:58,954 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:58,955 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:58,955 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:58,955 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:58,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-21 11:19:58,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:58,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-21 11:19:58,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:58,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:19:58,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:58,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:19:58,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:58,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:59,032 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:59,040 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:59,040 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:59,041 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:59,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:19:59,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:59,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 11:19:59,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:59,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:19:59,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:59,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:19:59,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:59,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:59,116 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:59,117 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:59,117 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:59,118 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:59,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:19:59,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:59,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-21 11:19:59,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:59,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:19:59,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:59,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 11:19:59,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 11:19:59,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:59,192 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:59,193 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:59,193 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:59,193 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:59,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:19:59,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:59,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 11:19:59,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:59,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:19:59,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:59,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:19:59,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:59,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:59,259 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:59,260 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:59,261 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:59,261 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:59,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:19:59,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:59,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:19:59,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:59,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:19:59,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:59,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:19:59,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:19:59,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:59,313 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:59,314 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:59,315 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:59,315 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:59,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:19:59,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:59,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:19:59,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:59,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:19:59,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:59,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:19:59,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:19:59,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:19:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:59,364 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:59,365 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:59,365 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:59,366 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:59,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:19:59,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:59,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:19:59,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:59,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:19:59,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:59,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:19:59,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:19:59,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 105 proven. 561 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2020-09-21 11:19:59,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [69089637] [2020-09-21 11:19:59,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:19:59,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-21 11:19:59,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952749666] [2020-09-21 11:19:59,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-21 11:19:59,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:59,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-21 11:19:59,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=309, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:19:59,595 INFO L87 Difference]: Start difference. First operand 82 states and 93 transitions. Second operand 23 states. [2020-09-21 11:20:00,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:20:00,021 INFO L93 Difference]: Finished difference Result 134 states and 146 transitions. [2020-09-21 11:20:00,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-21 11:20:00,021 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 132 [2020-09-21 11:20:00,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:20:00,023 INFO L225 Difference]: With dead ends: 134 [2020-09-21 11:20:00,023 INFO L226 Difference]: Without dead ends: 130 [2020-09-21 11:20:00,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=593, Invalid=1047, Unknown=0, NotChecked=0, Total=1640 [2020-09-21 11:20:00,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-09-21 11:20:00,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 80. [2020-09-21 11:20:00,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-21 11:20:00,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2020-09-21 11:20:00,035 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 132 [2020-09-21 11:20:00,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:20:00,035 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2020-09-21 11:20:00,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-21 11:20:00,036 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2020-09-21 11:20:00,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-09-21 11:20:00,037 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:20:00,038 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:20:00,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-21 11:20:00,038 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:20:00,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:20:00,039 INFO L82 PathProgramCache]: Analyzing trace with hash -103968989, now seen corresponding path program 18 times [2020-09-21 11:20:00,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:20:00,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119569666] [2020-09-21 11:20:00,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:20:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:00,425 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:00,425 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:00,426 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:00,426 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:00,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-09-21 11:20:00,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:00,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-09-21 11:20:00,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:00,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-09-21 11:20:00,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:20:00,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-09-21 11:20:00,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:20:00,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:20:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:00,467 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:00,468 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:00,468 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:00,468 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:00,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:20:00,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:00,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:20:00,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:00,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:20:00,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:00,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:20:00,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:00,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:20:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:00,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:00,838 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:00,838 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:00,838 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:00,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-09-21 11:20:00,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:00,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-09-21 11:20:00,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:00,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-09-21 11:20:00,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:00,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-09-21 11:20:00,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:00,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:01,171 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:01,172 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:01,172 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:01,172 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:01,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-21 11:20:01,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:01,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-21 11:20:01,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:01,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-21 11:20:01,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:01,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-09-21 11:20:01,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:01,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:01,463 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:01,463 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:01,464 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:01,464 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:01,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-21 11:20:01,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:01,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-21 11:20:01,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:01,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-21 11:20:01,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:01,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-21 11:20:01,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:01,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:01,732 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:01,732 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:01,732 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:01,733 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:01,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-21 11:20:01,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:01,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-21 11:20:01,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:01,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:20:01,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:01,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-09-21 11:20:01,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:01,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:01,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:01,973 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:01,974 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:01,974 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:01,974 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:01,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-21 11:20:01,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:01,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-21 11:20:01,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:01,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:20:01,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:01,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-21 11:20:01,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:02,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:02,173 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:02,174 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:02,174 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:02,174 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:02,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-21 11:20:02,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:02,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-21 11:20:02,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:02,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:20:02,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:02,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-21 11:20:02,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:02,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:02,375 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:02,376 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:02,376 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:02,376 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:02,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 11:20:02,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:02,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-21 11:20:02,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:02,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:20:02,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:02,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-21 11:20:02,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:02,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:02,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:02,602 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:02,603 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:02,603 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:02,603 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:02,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-21 11:20:02,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:02,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-21 11:20:02,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:02,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:20:02,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:02,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-21 11:20:02,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:02,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:02,744 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:02,744 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:02,744 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:02,744 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:02,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:20:02,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:02,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-21 11:20:02,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:02,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:20:02,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:02,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 11:20:02,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:02,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:02,877 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:02,877 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:02,877 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:02,878 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:02,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-21 11:20:02,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:02,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-21 11:20:02,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:02,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:20:02,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:02,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-21 11:20:02,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:02,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:02,991 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:02,991 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:02,992 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:02,992 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:02,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:20:02,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:02,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-21 11:20:02,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:02,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:20:02,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:02,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:20:02,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:03,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:03,083 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:03,084 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:03,084 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:03,084 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:03,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-21 11:20:03,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:03,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-21 11:20:03,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:20:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:20:03,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:03,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:03,167 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:03,167 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:03,168 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:03,168 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:03,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-21 11:20:03,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:03,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 11:20:03,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:03,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:20:03,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:03,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:20:03,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:03,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:03,244 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:03,245 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:03,245 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:03,245 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:03,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:20:03,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:03,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 11:20:03,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:03,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:20:03,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:03,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:20:03,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:03,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:03,307 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:03,308 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:03,308 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:03,308 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:03,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:20:03,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:03,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 11:20:03,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:03,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:20:03,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:03,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 11:20:03,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:03,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:03,362 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:03,362 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:03,362 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:03,362 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:03,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:20:03,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:03,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:20:03,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:03,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:20:03,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:03,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:20:03,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:03,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:03,411 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:03,411 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:03,412 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:03,412 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:03,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:20:03,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:03,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:20:03,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:03,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:20:03,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:03,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:20:03,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:03,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:03,457 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:03,458 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:03,458 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:03,458 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:03,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:20:03,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:03,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:20:03,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:03,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:20:03,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:03,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:20:03,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:03,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:03,497 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:03,498 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:03,498 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:03,498 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:03,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:20:03,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:03,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:20:03,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:03,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:20:03,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:03,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:20:03,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:03,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 162 proven. 571 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2020-09-21 11:20:03,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119569666] [2020-09-21 11:20:03,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:20:03,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-21 11:20:03,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571132804] [2020-09-21 11:20:03,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-21 11:20:03,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:20:03,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-21 11:20:03,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=335, Unknown=0, NotChecked=0, Total=552 [2020-09-21 11:20:03,615 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand 24 states. [2020-09-21 11:20:04,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:20:04,015 INFO L93 Difference]: Finished difference Result 87 states and 95 transitions. [2020-09-21 11:20:04,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-21 11:20:04,016 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 139 [2020-09-21 11:20:04,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:20:04,017 INFO L225 Difference]: With dead ends: 87 [2020-09-21 11:20:04,017 INFO L226 Difference]: Without dead ends: 83 [2020-09-21 11:20:04,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=654, Invalid=1152, Unknown=0, NotChecked=0, Total=1806 [2020-09-21 11:20:04,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-09-21 11:20:04,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-09-21 11:20:04,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-21 11:20:04,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 91 transitions. [2020-09-21 11:20:04,028 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 91 transitions. Word has length 139 [2020-09-21 11:20:04,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:20:04,030 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 91 transitions. [2020-09-21 11:20:04,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-21 11:20:04,030 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 91 transitions. [2020-09-21 11:20:04,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-09-21 11:20:04,032 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:20:04,032 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:20:04,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-21 11:20:04,033 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:20:04,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:20:04,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1432494106, now seen corresponding path program 19 times [2020-09-21 11:20:04,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:20:04,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [936238148] [2020-09-21 11:20:04,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:20:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:04,414 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:04,415 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:04,415 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:04,415 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:04,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-21 11:20:04,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:04,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-09-21 11:20:04,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:04,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-09-21 11:20:04,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:20:04,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-09-21 11:20:04,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:04,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:20:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:04,447 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:04,447 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:04,448 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:04,448 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:04,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:20:04,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:04,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:20:04,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:04,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:20:04,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:04,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:20:04,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:04,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:20:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:04,776 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:04,776 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:04,777 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:04,777 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:04,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-21 11:20:04,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:04,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-09-21 11:20:04,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:04,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-09-21 11:20:04,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:04,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-09-21 11:20:04,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:04,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:04,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:05,129 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:05,129 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:05,129 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:05,129 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:05,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-09-21 11:20:05,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:05,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-09-21 11:20:05,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:05,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-09-21 11:20:05,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:05,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-09-21 11:20:05,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:05,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:05,454 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:05,455 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:05,455 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:05,455 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:05,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-21 11:20:05,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:05,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-21 11:20:05,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:05,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-21 11:20:05,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:05,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-09-21 11:20:05,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:05,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:05,763 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:05,763 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:05,763 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:05,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:05,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-21 11:20:05,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:05,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-21 11:20:05,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:05,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-21 11:20:05,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:05,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-21 11:20:05,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:05,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:06,041 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:06,041 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:06,041 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:06,041 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:06,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-21 11:20:06,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:06,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-21 11:20:06,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:06,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:20:06,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:06,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-09-21 11:20:06,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:06,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:06,331 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:06,332 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:06,332 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:06,332 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:06,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-21 11:20:06,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:06,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-21 11:20:06,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:06,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:20:06,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:06,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-21 11:20:06,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:06,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:06,535 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:06,535 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:06,535 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:06,536 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:06,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-21 11:20:06,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:06,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-09-21 11:20:06,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:06,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:20:06,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:06,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-21 11:20:06,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:06,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:06,716 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:06,716 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:06,716 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:06,716 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:06,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 11:20:06,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:06,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-21 11:20:06,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:06,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:20:06,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:06,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-21 11:20:06,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:06,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:06,885 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:06,885 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:06,885 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:06,885 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:06,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-21 11:20:06,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:06,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-21 11:20:06,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:06,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:20:06,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:06,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-21 11:20:06,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:06,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:07,032 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:07,032 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:07,032 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:07,032 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:07,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:20:07,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:07,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-21 11:20:07,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:07,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:20:07,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 11:20:07,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:07,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:07,162 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:07,163 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:07,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:07,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:07,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-21 11:20:07,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:07,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-21 11:20:07,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:07,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:20:07,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:07,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-21 11:20:07,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:07,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:07,275 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:07,276 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:07,276 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:07,276 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:07,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:20:07,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:07,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-21 11:20:07,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:20:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:07,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:20:07,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:07,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:07,370 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:07,370 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:07,371 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:07,371 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:07,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-21 11:20:07,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:07,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-21 11:20:07,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:07,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:20:07,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:07,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:20:07,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:20:07,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:07,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:07,454 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:07,455 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:07,455 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:07,455 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:07,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-21 11:20:07,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:07,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:20:07,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:07,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:20:07,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:07,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:20:07,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:07,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:07,538 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:07,539 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:07,539 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:07,540 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:07,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:20:07,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:07,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 11:20:07,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:07,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:20:07,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:07,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:20:07,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:20:07,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:07,613 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:07,613 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:07,613 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:07,613 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:07,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:20:07,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:07,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 11:20:07,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:07,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:20:07,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:07,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 11:20:07,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:07,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:07,672 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:07,672 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:07,672 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:07,673 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:07,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:20:07,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:07,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:20:07,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:07,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:20:07,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:07,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:20:07,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:07,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:07,723 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:07,723 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:07,724 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:07,724 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:07,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:20:07,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:07,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:20:07,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:07,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:20:07,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:07,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:20:07,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:20:07,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:07,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:07,768 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:07,769 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:07,769 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:07,769 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:07,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:20:07,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:07,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:20:07,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:07,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:20:07,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:07,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:20:07,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:20:07,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:07,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:07,805 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:07,805 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:07,805 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:07,806 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:07,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:20:07,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:07,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:20:07,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:07,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:20:07,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:07,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:20:07,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:07,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 151 proven. 680 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2020-09-21 11:20:07,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [936238148] [2020-09-21 11:20:07,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:20:07,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-21 11:20:07,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530318789] [2020-09-21 11:20:07,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-21 11:20:07,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:20:07,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-21 11:20:07,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=362, Unknown=0, NotChecked=0, Total=600 [2020-09-21 11:20:07,959 INFO L87 Difference]: Start difference. First operand 83 states and 91 transitions. Second operand 25 states. [2020-09-21 11:20:08,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:20:08,425 INFO L93 Difference]: Finished difference Result 146 states and 157 transitions. [2020-09-21 11:20:08,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-21 11:20:08,425 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 146 [2020-09-21 11:20:08,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:20:08,427 INFO L225 Difference]: With dead ends: 146 [2020-09-21 11:20:08,428 INFO L226 Difference]: Without dead ends: 142 [2020-09-21 11:20:08,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=718, Invalid=1262, Unknown=0, NotChecked=0, Total=1980 [2020-09-21 11:20:08,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-09-21 11:20:08,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 91. [2020-09-21 11:20:08,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-09-21 11:20:08,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 102 transitions. [2020-09-21 11:20:08,435 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 102 transitions. Word has length 146 [2020-09-21 11:20:08,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:20:08,436 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 102 transitions. [2020-09-21 11:20:08,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-21 11:20:08,436 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 102 transitions. [2020-09-21 11:20:08,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-21 11:20:08,438 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:20:08,439 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:20:08,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-21 11:20:08,439 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:20:08,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:20:08,439 INFO L82 PathProgramCache]: Analyzing trace with hash -873938119, now seen corresponding path program 20 times [2020-09-21 11:20:08,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:20:08,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064328765] [2020-09-21 11:20:08,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:20:08,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:08,825 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:08,825 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:08,826 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:08,826 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:08,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-21 11:20:08,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:08,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-09-21 11:20:08,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:08,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-09-21 11:20:08,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:20:08,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 188 [2020-09-21 11:20:08,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:08,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:20:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:08,859 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:08,860 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:08,860 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:08,860 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:08,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:20:08,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:08,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:20:08,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:08,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:20:08,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:08,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:20:08,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:08,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:20:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:09,253 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:09,253 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:09,254 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:09,254 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:09,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-21 11:20:09,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:09,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 365 [2020-09-21 11:20:09,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:09,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-09-21 11:20:09,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:09,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-09-21 11:20:09,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:09,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:09,641 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:09,641 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:09,642 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:09,642 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:09,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-21 11:20:09,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:09,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-09-21 11:20:09,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:09,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-21 11:20:09,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:09,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-09-21 11:20:09,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:09,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:10,057 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:10,058 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:10,058 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:10,058 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:10,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-09-21 11:20:10,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:10,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-09-21 11:20:10,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:10,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-09-21 11:20:10,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:10,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-09-21 11:20:10,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:10,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:10,385 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:10,385 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:10,385 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:10,385 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:10,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-21 11:20:10,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:10,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-09-21 11:20:10,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:10,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-21 11:20:10,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:10,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-09-21 11:20:10,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:10,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:10,679 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:10,680 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:10,680 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:10,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:10,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-21 11:20:10,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:10,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-21 11:20:10,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:10,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-21 11:20:10,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:10,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-21 11:20:10,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:10,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:11,038 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:11,038 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:11,039 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:11,039 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:11,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-21 11:20:11,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:11,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-09-21 11:20:11,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:11,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:20:11,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:11,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-09-21 11:20:11,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:11,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:11,286 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:11,286 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:11,287 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:11,287 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:11,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-21 11:20:11,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:11,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-09-21 11:20:11,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:20:11,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:11,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-21 11:20:11,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:11,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:11,497 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:11,497 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:11,497 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:11,497 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:11,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-21 11:20:11,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:11,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-09-21 11:20:11,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:11,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:20:11,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:11,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-21 11:20:11,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:11,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:11,683 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:11,684 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:11,684 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:11,684 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:11,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 11:20:11,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:11,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-21 11:20:11,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:11,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:20:11,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:11,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-21 11:20:11,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:11,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:11,873 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:11,874 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:11,874 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:11,874 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:11,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-21 11:20:11,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:11,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-21 11:20:11,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:11,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:20:11,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:11,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-21 11:20:11,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:11,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:12,024 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:12,025 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:12,025 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:12,025 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:12,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:20:12,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:12,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-21 11:20:12,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:12,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:20:12,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:12,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 11:20:12,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:12,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:12,153 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:12,153 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:12,153 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:12,153 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:12,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-21 11:20:12,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:12,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-21 11:20:12,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:12,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:20:12,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:12,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-21 11:20:12,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:12,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:12,264 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:12,264 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:12,264 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:12,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:12,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:20:12,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:12,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-21 11:20:12,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:12,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:20:12,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:12,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:20:12,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:12,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:12,372 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:12,372 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:12,372 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:12,373 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:12,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-21 11:20:12,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:12,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-21 11:20:12,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:12,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:20:12,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:12,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:20:12,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:12,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:12,520 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:12,521 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:12,521 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:12,521 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:12,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-21 11:20:12,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:12,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-21 11:20:12,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:12,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:20:12,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:12,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:20:12,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:12,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:12,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:12,605 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:12,605 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:12,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:12,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:20:12,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:12,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:20:12,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:12,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:20:12,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:12,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:20:12,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:20:12,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:12,684 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:12,685 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:12,685 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:12,686 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:12,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:20:12,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:12,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 11:20:12,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:12,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:20:12,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:12,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 11:20:12,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:20:12,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:12,742 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:12,743 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:12,743 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:12,743 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:12,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:20:12,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:12,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 11:20:12,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:12,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:20:12,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:12,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:20:12,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:20:12,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:12,791 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:12,791 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:12,792 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:12,792 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:12,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:20:12,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:12,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:20:12,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:12,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:20:12,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:12,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:20:12,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:20:12,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:12,833 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:12,834 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:12,834 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:12,835 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:12,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:20:12,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:12,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:20:12,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:12,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:20:12,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:12,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:20:12,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:20:12,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:12,906 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:12,906 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:12,906 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:12,906 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:12,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:20:12,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:12,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:20:12,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:12,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:20:12,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:12,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:20:12,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:20:13,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 86 proven. 862 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2020-09-21 11:20:13,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064328765] [2020-09-21 11:20:13,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:20:13,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-21 11:20:13,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331297271] [2020-09-21 11:20:13,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-21 11:20:13,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:20:13,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-21 11:20:13,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=439, Unknown=0, NotChecked=0, Total=702 [2020-09-21 11:20:13,044 INFO L87 Difference]: Start difference. First operand 91 states and 102 transitions. Second operand 27 states. [2020-09-21 11:20:13,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:20:13,530 INFO L93 Difference]: Finished difference Result 98 states and 109 transitions. [2020-09-21 11:20:13,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-21 11:20:13,536 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 153 [2020-09-21 11:20:13,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:20:13,538 INFO L225 Difference]: With dead ends: 98 [2020-09-21 11:20:13,538 INFO L226 Difference]: Without dead ends: 94 [2020-09-21 11:20:13,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=809, Invalid=1447, Unknown=0, NotChecked=0, Total=2256 [2020-09-21 11:20:13,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-09-21 11:20:13,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2020-09-21 11:20:13,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-21 11:20:13,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 105 transitions. [2020-09-21 11:20:13,546 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 105 transitions. Word has length 153 [2020-09-21 11:20:13,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:20:13,547 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 105 transitions. [2020-09-21 11:20:13,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-21 11:20:13,548 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 105 transitions. [2020-09-21 11:20:13,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-21 11:20:13,550 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:20:13,550 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:20:13,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-09-21 11:20:13,550 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:20:13,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:20:13,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1461029712, now seen corresponding path program 21 times [2020-09-21 11:20:13,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:20:13,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48389677] [2020-09-21 11:20:13,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:20:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:13,985 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:13,986 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:13,986 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:13,986 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:13,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-21 11:20:13,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:13,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 395 [2020-09-21 11:20:13,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:13,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-09-21 11:20:13,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:20:13,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 197 [2020-09-21 11:20:13,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:14,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:20:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:14,020 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:14,020 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:14,020 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:14,021 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:14,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:20:14,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:14,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:20:14,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:14,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:20:14,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:14,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:20:14,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:14,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:20:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:14,476 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:14,477 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:14,477 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:14,477 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:14,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-21 11:20:14,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:14,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-09-21 11:20:14,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:14,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-09-21 11:20:14,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:14,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-09-21 11:20:14,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:14,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:14,922 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:14,922 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:14,922 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:14,922 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:14,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-21 11:20:14,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:14,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 379 [2020-09-21 11:20:14,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:14,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-09-21 11:20:14,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:14,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-09-21 11:20:14,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:14,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:15,307 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:15,307 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:15,307 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:15,308 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:15,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-21 11:20:15,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:15,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-09-21 11:20:15,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:15,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-21 11:20:15,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:15,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-09-21 11:20:15,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:15,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:15,677 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:15,677 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:15,677 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:15,677 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:15,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-09-21 11:20:15,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:15,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-09-21 11:20:15,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:15,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-09-21 11:20:15,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:15,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-09-21 11:20:15,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:15,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:15,988 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:15,988 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:15,988 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:15,988 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:15,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-21 11:20:15,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:15,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-09-21 11:20:15,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:15,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-21 11:20:15,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:15,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-09-21 11:20:15,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:16,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:16,281 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:16,282 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:16,282 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:16,282 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:16,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-21 11:20:16,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:16,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-21 11:20:16,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:16,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-21 11:20:16,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:16,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-21 11:20:16,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:16,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:16,597 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:16,597 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:16,597 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:16,598 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:16,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-21 11:20:16,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:16,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-21 11:20:16,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:16,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:20:16,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:16,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-09-21 11:20:16,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:16,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:16,823 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:16,823 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:16,823 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:16,824 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:16,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-21 11:20:16,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:16,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-09-21 11:20:16,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:16,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:20:16,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:16,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-21 11:20:16,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:16,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:17,034 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:17,034 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:17,034 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:17,034 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:17,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-21 11:20:17,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:17,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-21 11:20:17,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:17,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:20:17,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:17,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-21 11:20:17,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:17,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:17,213 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:17,213 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:17,213 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:17,214 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:17,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 11:20:17,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:17,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-21 11:20:17,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:17,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:20:17,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:17,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-21 11:20:17,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:17,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:17,375 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:17,375 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:17,375 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:17,375 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:17,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-21 11:20:17,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:17,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-21 11:20:17,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:17,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:20:17,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:17,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-21 11:20:17,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:17,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:17,523 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:17,523 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:17,523 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:17,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:17,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:20:17,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:17,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-21 11:20:17,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:17,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:20:17,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:17,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 11:20:17,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:17,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:17,648 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:17,649 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:17,649 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:17,649 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:17,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-21 11:20:17,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:17,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-21 11:20:17,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:17,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:20:17,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:17,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-21 11:20:17,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:17,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:17,762 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:17,762 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:17,762 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:17,762 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:17,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:20:17,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:17,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-21 11:20:17,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:17,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:20:17,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:17,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:20:17,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:17,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:17,860 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:17,861 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:17,861 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:17,861 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:17,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-21 11:20:17,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:17,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-21 11:20:17,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:17,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:20:17,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:17,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:20:17,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:17,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:17,944 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:17,944 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:17,944 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:17,945 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:17,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-21 11:20:17,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:17,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:20:17,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:17,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:20:17,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:17,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:20:17,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:17,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:18,018 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:18,018 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:18,019 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:18,019 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:18,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:20:18,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:18,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 11:20:18,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:18,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:20:18,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:18,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:20:18,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:18,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:18,084 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:18,085 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:18,085 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:18,085 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:18,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:20:18,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:18,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 11:20:18,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:18,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:20:18,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:18,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 11:20:18,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:18,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:18,142 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:18,142 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:18,143 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:18,143 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:18,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:20:18,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:18,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:20:18,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:18,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:20:18,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:18,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:20:18,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:20:18,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:18,201 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:18,201 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:18,202 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:18,202 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:18,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:20:18,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:18,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:20:18,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:18,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:20:18,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:18,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:20:18,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:20:18,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:18,249 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:18,249 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:18,250 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:18,250 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:18,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:20:18,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:18,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:20:18,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:18,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:20:18,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:18,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:20:18,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:20:18,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:20:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:20:18,291 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:20:18,291 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:20:18,291 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:20:18,292 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:20:18,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:20:18,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:20:18,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:20:18,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:20:18,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:20:18,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:20:18,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:20:18,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:20:18,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 111 proven. 881 refuted. 0 times theorem prover too weak. 562 trivial. 0 not checked. [2020-09-21 11:20:18,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48389677] [2020-09-21 11:20:18,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:20:18,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-21 11:20:18,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148611903] [2020-09-21 11:20:18,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-21 11:20:18,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:20:18,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-21 11:20:18,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=419, Unknown=0, NotChecked=0, Total=702 [2020-09-21 11:20:18,471 INFO L87 Difference]: Start difference. First operand 94 states and 105 transitions. Second operand 27 states. [2020-09-21 11:20:18,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:20:18,965 INFO L93 Difference]: Finished difference Result 158 states and 170 transitions. [2020-09-21 11:20:18,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-21 11:20:18,966 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 160 [2020-09-21 11:20:18,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:20:18,967 INFO L225 Difference]: With dead ends: 158 [2020-09-21 11:20:18,967 INFO L226 Difference]: Without dead ends: 154 [2020-09-21 11:20:18,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=855, Invalid=1497, Unknown=0, NotChecked=0, Total=2352 [2020-09-21 11:20:18,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-09-21 11:20:18,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 92. [2020-09-21 11:20:18,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-21 11:20:18,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 100 transitions. [2020-09-21 11:20:18,975 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 100 transitions. Word has length 160 [2020-09-21 11:20:18,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:20:18,976 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 100 transitions. [2020-09-21 11:20:18,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-21 11:20:18,976 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 100 transitions. [2020-09-21 11:20:18,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-21 11:20:18,977 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:20:18,977 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:20:18,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-09-21 11:20:18,978 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:20:18,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:20:18,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1249222577, now seen corresponding path program 22 times [2020-09-21 11:20:18,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:20:18,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [334869003] [2020-09-21 11:20:18,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:20:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat