/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 --rcfgbuilder.size.of.a.code.block SequenceOfStatements --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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label24.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 13:56:33,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 13:56:33,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 13:56:33,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 13:56:33,995 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 13:56:33,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 13:56:33,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 13:56:33,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 13:56:34,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 13:56:34,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 13:56:34,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 13:56:34,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 13:56:34,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 13:56:34,004 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 13:56:34,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 13:56:34,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 13:56:34,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 13:56:34,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 13:56:34,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 13:56:34,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 13:56:34,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 13:56:34,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 13:56:34,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 13:56:34,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 13:56:34,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 13:56:34,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 13:56:34,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 13:56:34,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 13:56:34,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 13:56:34,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 13:56:34,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 13:56:34,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 13:56:34,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 13:56:34,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 13:56:34,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 13:56:34,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 13:56:34,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 13:56:34,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 13:56:34,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 13:56:34,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 13:56:34,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 13:56:34,027 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 [2020-10-12 13:56:34,057 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 13:56:34,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 13:56:34,060 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 13:56:34,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 13:56:34,061 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 13:56:34,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 13:56:34,061 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 13:56:34,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 13:56:34,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 13:56:34,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 13:56:34,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 13:56:34,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 13:56:34,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 13:56:34,063 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 13:56:34,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 13:56:34,065 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 13:56:34,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 13:56:34,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 13:56:34,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 13:56:34,066 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 13:56:34,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 13:56:34,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 13:56:34,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 13:56:34,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 13:56:34,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 13:56:34,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 13:56:34,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 13:56:34,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 13:56:34,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 13:56:34,068 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.rcfgbuilder: Size of a code block -> SequenceOfStatements 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;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 13:56:34,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 13:56:34,369 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 13:56:34,372 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 13:56:34,373 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 13:56:34,373 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 13:56:34,374 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label24.c [2020-10-12 13:56:34,438 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef433bcea/020532ed04ca400ab9bc64ceef9ba8dc/FLAG0ba96bc7b [2020-10-12 13:56:35,012 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 13:56:35,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label24.c [2020-10-12 13:56:35,024 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef433bcea/020532ed04ca400ab9bc64ceef9ba8dc/FLAG0ba96bc7b [2020-10-12 13:56:35,307 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef433bcea/020532ed04ca400ab9bc64ceef9ba8dc [2020-10-12 13:56:35,318 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 13:56:35,320 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 13:56:35,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 13:56:35,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 13:56:35,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 13:56:35,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:56:35" (1/1) ... [2020-10-12 13:56:35,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ecced43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:35, skipping insertion in model container [2020-10-12 13:56:35,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:56:35" (1/1) ... [2020-10-12 13:56:35,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 13:56:35,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 13:56:35,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:56:35,969 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 13:56:36,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:56:36,310 INFO L208 MainTranslator]: Completed translation [2020-10-12 13:56:36,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:36 WrapperNode [2020-10-12 13:56:36,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 13:56:36,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 13:56:36,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 13:56:36,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 13:56:36,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:36" (1/1) ... [2020-10-12 13:56:36,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:36" (1/1) ... [2020-10-12 13:56:36,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:36" (1/1) ... [2020-10-12 13:56:36,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:36" (1/1) ... [2020-10-12 13:56:36,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:36" (1/1) ... [2020-10-12 13:56:36,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:36" (1/1) ... [2020-10-12 13:56:36,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:36" (1/1) ... [2020-10-12 13:56:36,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 13:56:36,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 13:56:36,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 13:56:36,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 13:56:36,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:36" (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 [2020-10-12 13:56:36,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 13:56:36,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 13:56:36,542 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 13:56:36,542 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 13:56:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 13:56:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 13:56:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 13:56:36,544 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 13:56:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 13:56:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 13:56:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 13:56:38,091 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 13:56:38,091 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 13:56:38,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:56:38 BoogieIcfgContainer [2020-10-12 13:56:38,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 13:56:38,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 13:56:38,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 13:56:38,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 13:56:38,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 01:56:35" (1/3) ... [2020-10-12 13:56:38,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d03198c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:56:38, skipping insertion in model container [2020-10-12 13:56:38,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:36" (2/3) ... [2020-10-12 13:56:38,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d03198c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:56:38, skipping insertion in model container [2020-10-12 13:56:38,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:56:38" (3/3) ... [2020-10-12 13:56:38,106 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label24.c [2020-10-12 13:56:38,116 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 13:56:38,125 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 13:56:38,139 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 13:56:38,165 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 13:56:38,165 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 13:56:38,165 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 13:56:38,165 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 13:56:38,166 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 13:56:38,166 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 13:56:38,166 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 13:56:38,166 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 13:56:38,190 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-12 13:56:38,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-12 13:56:38,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:38,200 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:56:38,201 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:38,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:38,209 INFO L82 PathProgramCache]: Analyzing trace with hash 2116109586, now seen corresponding path program 1 times [2020-10-12 13:56:38,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:38,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [974319394] [2020-10-12 13:56:38,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:38,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:38,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:38,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-12 13:56:38,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:38,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 403 [2020-10-12 13:56:38,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:38,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:56:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:56:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-12 13:56:38,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 13:56:38,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:38,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:38,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:38,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:38,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:38,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:56:38,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:38,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:38,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:38,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:56:38,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:38,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:56:38,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [974319394] [2020-10-12 13:56:38,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:56:38,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 13:56:38,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139378533] [2020-10-12 13:56:38,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 13:56:38,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:56:38,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 13:56:38,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 13:56:38,952 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2020-10-12 13:56:40,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:56:40,566 INFO L93 Difference]: Finished difference Result 698 states and 1240 transitions. [2020-10-12 13:56:40,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:56:40,568 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-12 13:56:40,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:56:40,586 INFO L225 Difference]: With dead ends: 698 [2020-10-12 13:56:40,586 INFO L226 Difference]: Without dead ends: 380 [2020-10-12 13:56:40,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:56:40,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-12 13:56:40,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 376. [2020-10-12 13:56:40,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-12 13:56:40,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 552 transitions. [2020-10-12 13:56:40,667 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 552 transitions. Word has length 47 [2020-10-12 13:56:40,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:56:40,668 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 552 transitions. [2020-10-12 13:56:40,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 13:56:40,668 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 552 transitions. [2020-10-12 13:56:40,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-12 13:56:40,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:40,675 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:56:40,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 13:56:40,675 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:40,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:40,676 INFO L82 PathProgramCache]: Analyzing trace with hash 13726601, now seen corresponding path program 1 times [2020-10-12 13:56:40,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:40,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [53856201] [2020-10-12 13:56:40,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:40,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:40,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:41,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:41,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:41,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 13:56:41,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:56:41,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 852 [2020-10-12 13:56:41,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:41,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:56:41,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:56:41,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 13:56:41,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 13:56:41,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:41,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:41,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:41,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:41,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:41,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 13:56:41,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:41,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:41,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:41,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:56:41,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:41,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:56:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:41,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:41,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:41,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 13:56:41,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:41,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-12 13:56:41,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:41,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:56:41,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:56:41,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 13:56:41,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:41,997 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:56:41,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [53856201] [2020-10-12 13:56:41,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:56:41,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 13:56:41,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123309402] [2020-10-12 13:56:42,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:56:42,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:56:42,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:56:42,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:56:42,001 INFO L87 Difference]: Start difference. First operand 376 states and 552 transitions. Second operand 7 states. [2020-10-12 13:56:43,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:56:43,699 INFO L93 Difference]: Finished difference Result 1126 states and 1670 transitions. [2020-10-12 13:56:43,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 13:56:43,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2020-10-12 13:56:43,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:56:43,705 INFO L225 Difference]: With dead ends: 1126 [2020-10-12 13:56:43,705 INFO L226 Difference]: Without dead ends: 756 [2020-10-12 13:56:43,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:56:43,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-10-12 13:56:43,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 748. [2020-10-12 13:56:43,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2020-10-12 13:56:43,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1003 transitions. [2020-10-12 13:56:43,766 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1003 transitions. Word has length 116 [2020-10-12 13:56:43,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:56:43,767 INFO L479 AbstractCegarLoop]: Abstraction has 748 states and 1003 transitions. [2020-10-12 13:56:43,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:56:43,767 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1003 transitions. [2020-10-12 13:56:43,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-12 13:56:43,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:43,772 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:56:43,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 13:56:43,773 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:43,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:43,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1793655022, now seen corresponding path program 1 times [2020-10-12 13:56:43,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:43,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [952473528] [2020-10-12 13:56:43,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:43,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:43,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:44,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:44,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:44,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-12 13:56:44,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:56:44,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 663 [2020-10-12 13:56:44,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:44,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:56:44,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:56:44,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 13:56:44,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:44,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:44,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:44,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:44,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:44,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:44,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 13:56:44,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:44,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:44,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:44,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:56:44,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:44,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:56:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:44,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:44,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:44,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 13:56:44,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:44,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-12 13:56:44,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:44,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:56:44,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:56:44,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 13:56:44,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:44,700 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:56:44,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [952473528] [2020-10-12 13:56:44,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:56:44,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 13:56:44,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635482674] [2020-10-12 13:56:44,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:56:44,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:56:44,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:56:44,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:56:44,704 INFO L87 Difference]: Start difference. First operand 748 states and 1003 transitions. Second operand 7 states. [2020-10-12 13:56:46,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:56:46,676 INFO L93 Difference]: Finished difference Result 2082 states and 2866 transitions. [2020-10-12 13:56:46,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 13:56:46,676 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 119 [2020-10-12 13:56:46,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:56:46,685 INFO L225 Difference]: With dead ends: 2082 [2020-10-12 13:56:46,685 INFO L226 Difference]: Without dead ends: 1340 [2020-10-12 13:56:46,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:56:46,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2020-10-12 13:56:46,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1318. [2020-10-12 13:56:46,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1318 states. [2020-10-12 13:56:46,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 1660 transitions. [2020-10-12 13:56:46,753 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 1660 transitions. Word has length 119 [2020-10-12 13:56:46,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:56:46,754 INFO L479 AbstractCegarLoop]: Abstraction has 1318 states and 1660 transitions. [2020-10-12 13:56:46,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:56:46,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 1660 transitions. [2020-10-12 13:56:46,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-10-12 13:56:46,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:46,760 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:56:46,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 13:56:46,761 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:46,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:46,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1539058259, now seen corresponding path program 1 times [2020-10-12 13:56:46,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:46,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2073337058] [2020-10-12 13:56:46,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:46,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:46,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:47,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:47,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:47,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:49,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:49,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-12 13:56:49,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:56:49,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2880 [2020-10-12 13:56:49,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:49,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 13:56:49,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:56:49,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-12 13:56:49,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:49,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:49,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:49,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:49,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:49,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:49,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 13:56:49,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:49,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:49,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:49,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:56:49,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:49,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:56:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:49,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:49,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:49,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 13:56:49,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:49,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 13:56:49,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:49,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:56:49,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:56:49,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 13:56:49,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:49,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 13:56:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:50,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:50,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:50,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 13:56:50,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:50,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-12 13:56:50,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:50,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:56:50,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:56:50,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 13:56:50,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:50,319 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 81 proven. 78 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 13:56:50,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2073337058] [2020-10-12 13:56:50,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:56:50,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:56:50,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758227082] [2020-10-12 13:56:50,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:56:50,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:56:50,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:56:50,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:56:50,322 INFO L87 Difference]: Start difference. First operand 1318 states and 1660 transitions. Second operand 8 states. [2020-10-12 13:56:52,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:56:52,244 INFO L93 Difference]: Finished difference Result 2878 states and 3677 transitions. [2020-10-12 13:56:52,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 13:56:52,244 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 214 [2020-10-12 13:56:52,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:56:52,258 INFO L225 Difference]: With dead ends: 2878 [2020-10-12 13:56:52,259 INFO L226 Difference]: Without dead ends: 1748 [2020-10-12 13:56:52,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2020-10-12 13:56:52,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748 states. [2020-10-12 13:56:52,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1748 to 1688. [2020-10-12 13:56:52,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1688 states. [2020-10-12 13:56:52,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1688 states to 1688 states and 2082 transitions. [2020-10-12 13:56:52,347 INFO L78 Accepts]: Start accepts. Automaton has 1688 states and 2082 transitions. Word has length 214 [2020-10-12 13:56:52,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:56:52,349 INFO L479 AbstractCegarLoop]: Abstraction has 1688 states and 2082 transitions. [2020-10-12 13:56:52,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 13:56:52,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1688 states and 2082 transitions. [2020-10-12 13:56:52,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-10-12 13:56:52,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:52,356 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:56:52,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 13:56:52,359 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:52,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:52,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1650868402, now seen corresponding path program 1 times [2020-10-12 13:56:52,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:52,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345522967] [2020-10-12 13:56:52,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:52,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:52,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:52,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:53,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:53,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:53,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 283 [2020-10-12 13:56:53,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:56:53,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1249 [2020-10-12 13:56:53,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:53,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:56:53,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 13:56:53,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 188 [2020-10-12 13:56:53,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:53,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:53,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:53,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:53,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:53,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:53,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:56:53,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:53,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:53,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:53,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:53,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:53,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:56:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:53,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:53,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:53,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 13:56:53,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:53,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 13:56:53,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:53,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:53,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:53,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 13:56:53,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-12 13:56:53,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 13:56:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:53,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:54,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:54,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:54,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:56:54,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:56:54,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-10-12 13:56:54,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:54,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:56:54,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:56:54,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-12 13:56:54,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:54,378 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 119 proven. 40 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 13:56:54,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345522967] [2020-10-12 13:56:54,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:56:54,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:56:54,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517540615] [2020-10-12 13:56:54,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:56:54,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:56:54,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:56:54,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:56:54,388 INFO L87 Difference]: Start difference. First operand 1688 states and 2082 transitions. Second operand 7 states. [2020-10-12 13:56:56,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:56:56,356 INFO L93 Difference]: Finished difference Result 3604 states and 4614 transitions. [2020-10-12 13:56:56,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 13:56:56,363 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 271 [2020-10-12 13:56:56,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:56:56,373 INFO L225 Difference]: With dead ends: 3604 [2020-10-12 13:56:56,373 INFO L226 Difference]: Without dead ends: 1720 [2020-10-12 13:56:56,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:56:56,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2020-10-12 13:56:56,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1496. [2020-10-12 13:56:56,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1496 states. [2020-10-12 13:56:56,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 1677 transitions. [2020-10-12 13:56:56,423 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 1677 transitions. Word has length 271 [2020-10-12 13:56:56,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:56:56,423 INFO L479 AbstractCegarLoop]: Abstraction has 1496 states and 1677 transitions. [2020-10-12 13:56:56,423 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:56:56,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 1677 transitions. [2020-10-12 13:56:56,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2020-10-12 13:56:56,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:56,432 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:56:56,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 13:56:56,432 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:56,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:56,433 INFO L82 PathProgramCache]: Analyzing trace with hash -579278734, now seen corresponding path program 1 times [2020-10-12 13:56:56,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:56,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258112369] [2020-10-12 13:56:56,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:56,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:56,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:56,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:58,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:00,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:01,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:01,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:01,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 449 [2020-10-12 13:57:01,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 13:57:01,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-12 13:57:01,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:01,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:57:01,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-12 13:57:01,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 13:57:01,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:57:01,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:57:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:01,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:01,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:01,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:57:01,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:01,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:57:01,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:01,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:01,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:01,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:01,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:01,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:57:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:01,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:01,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:01,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:57:01,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:01,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 13:57:01,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:01,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:01,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:01,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:01,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:01,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:57:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:01,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:01,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:01,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:57:01,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:01,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-12 13:57:01,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:01,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:57:01,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:01,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 13:57:01,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:01,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:57:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:01,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:01,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:02,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:02,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 13:57:02,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:57:02,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-12 13:57:02,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:02,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:57:02,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:02,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 13:57:02,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:57:02,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2020-10-12 13:57:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:02,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:02,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:02,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 13:57:02,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:02,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-12 13:57:02,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:02,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:57:02,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:02,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 13:57:02,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:57:02,792 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 489 proven. 6 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2020-10-12 13:57:02,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1258112369] [2020-10-12 13:57:02,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:57:02,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:57:02,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408387594] [2020-10-12 13:57:02,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:57:02,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:57:02,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:57:02,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:57:02,797 INFO L87 Difference]: Start difference. First operand 1496 states and 1677 transitions. Second operand 7 states. [2020-10-12 13:57:04,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:57:04,787 INFO L93 Difference]: Finished difference Result 3208 states and 3627 transitions. [2020-10-12 13:57:04,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 13:57:04,789 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 433 [2020-10-12 13:57:04,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:57:04,796 INFO L225 Difference]: With dead ends: 3208 [2020-10-12 13:57:04,796 INFO L226 Difference]: Without dead ends: 1900 [2020-10-12 13:57:04,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:57:04,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2020-10-12 13:57:04,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1682. [2020-10-12 13:57:04,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1682 states. [2020-10-12 13:57:04,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 1859 transitions. [2020-10-12 13:57:04,862 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 1859 transitions. Word has length 433 [2020-10-12 13:57:04,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:57:04,862 INFO L479 AbstractCegarLoop]: Abstraction has 1682 states and 1859 transitions. [2020-10-12 13:57:04,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:57:04,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 1859 transitions. [2020-10-12 13:57:04,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2020-10-12 13:57:04,872 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:57:04,873 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:57:04,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 13:57:04,873 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:57:04,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:57:04,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1407878671, now seen corresponding path program 1 times [2020-10-12 13:57:04,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:57:04,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1316828896] [2020-10-12 13:57:04,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:57:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:04,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:05,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:05,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:05,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:06,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:09,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:09,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 462 [2020-10-12 13:57:09,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:57:09,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-12 13:57:09,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:09,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 13:57:09,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:57:09,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-12 13:57:09,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:57:10,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:57:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:10,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:10,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:10,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:57:10,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:10,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 13:57:10,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:10,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:57:10,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:10,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:57:10,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:10,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:57:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:10,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:10,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:10,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:57:10,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:10,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-12 13:57:10,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:10,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:57:10,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:10,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 13:57:10,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:10,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:57:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:10,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:10,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:10,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-12 13:57:10,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:10,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-12 13:57:10,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:10,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:57:10,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:10,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-12 13:57:10,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:57:10,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-10-12 13:57:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:10,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:10,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:10,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 13:57:10,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:10,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 13:57:10,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:10,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:10,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-12 13:57:10,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:10,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:57:10,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2020-10-12 13:57:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:11,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:11,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:11,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 13:57:11,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:11,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 13:57:11,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:11,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:11,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-12 13:57:11,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:11,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:12,003 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 169 proven. 397 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-10-12 13:57:12,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1316828896] [2020-10-12 13:57:12,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:57:12,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 13:57:12,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376493855] [2020-10-12 13:57:12,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 13:57:12,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:57:12,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 13:57:12,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-12 13:57:12,007 INFO L87 Difference]: Start difference. First operand 1682 states and 1859 transitions. Second operand 9 states. [2020-10-12 13:57:13,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:57:13,489 INFO L93 Difference]: Finished difference Result 3392 states and 3768 transitions. [2020-10-12 13:57:13,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 13:57:13,489 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 446 [2020-10-12 13:57:13,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:57:13,497 INFO L225 Difference]: With dead ends: 3392 [2020-10-12 13:57:13,497 INFO L226 Difference]: Without dead ends: 1898 [2020-10-12 13:57:13,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-12 13:57:13,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2020-10-12 13:57:13,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1496. [2020-10-12 13:57:13,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1496 states. [2020-10-12 13:57:13,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 1660 transitions. [2020-10-12 13:57:13,535 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 1660 transitions. Word has length 446 [2020-10-12 13:57:13,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:57:13,536 INFO L479 AbstractCegarLoop]: Abstraction has 1496 states and 1660 transitions. [2020-10-12 13:57:13,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 13:57:13,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 1660 transitions. [2020-10-12 13:57:13,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2020-10-12 13:57:13,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:57:13,555 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:57:13,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 13:57:13,556 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:57:13,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:57:13,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1376287403, now seen corresponding path program 1 times [2020-10-12 13:57:13,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:57:13,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1624842782] [2020-10-12 13:57:13,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:57:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:13,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:13,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:14,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:16,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:18,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:18,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 718 [2020-10-12 13:57:18,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:57:18,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-12 13:57:18,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:18,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 13:57:18,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 586 [2020-10-12 13:57:18,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 13:57:18,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:18,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:57:18,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:18,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:18,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:18,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:57:18,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:18,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:57:18,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:18,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:18,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:18,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:18,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:18,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:57:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:18,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:18,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:18,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:57:18,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:18,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 13:57:18,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:18,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:18,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:18,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:18,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:18,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:57:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:18,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:18,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:18,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:57:18,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:18,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 13:57:18,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:18,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:18,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:18,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:18,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:18,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:57:18,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:18,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:18,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:18,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:57:18,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:18,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 13:57:18,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:18,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:18,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:18,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:18,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:19,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:57:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:19,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:19,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:19,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 13:57:19,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:19,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 13:57:19,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:19,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:19,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:19,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:19,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:19,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-12 13:57:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:19,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:19,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:19,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 13:57:19,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:19,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 13:57:19,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:19,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:57:19,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:19,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 13:57:19,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:57:19,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-10-12 13:57:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:19,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:19,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:19,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:19,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 13:57:19,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:57:19,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-10-12 13:57:19,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:19,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 13:57:19,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:19,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 13:57:19,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:19,762 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-10-12 13:57:19,892 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-12 13:57:20,024 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-12 13:57:20,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 650 proven. 2 refuted. 0 times theorem prover too weak. 949 trivial. 0 not checked. [2020-10-12 13:57:20,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1624842782] [2020-10-12 13:57:20,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:57:20,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 13:57:20,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140265491] [2020-10-12 13:57:20,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 13:57:20,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:57:20,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 13:57:20,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-12 13:57:20,702 INFO L87 Difference]: Start difference. First operand 1496 states and 1660 transitions. Second operand 10 states. [2020-10-12 13:57:21,842 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-12 13:57:23,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:57:23,202 INFO L93 Difference]: Finished difference Result 2955 states and 3296 transitions. [2020-10-12 13:57:23,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 13:57:23,203 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 698 [2020-10-12 13:57:23,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:57:23,210 INFO L225 Difference]: With dead ends: 2955 [2020-10-12 13:57:23,210 INFO L226 Difference]: Without dead ends: 1559 [2020-10-12 13:57:23,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2020-10-12 13:57:23,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2020-10-12 13:57:23,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1492. [2020-10-12 13:57:23,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1492 states. [2020-10-12 13:57:23,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 1596 transitions. [2020-10-12 13:57:23,245 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 1596 transitions. Word has length 698 [2020-10-12 13:57:23,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:57:23,246 INFO L479 AbstractCegarLoop]: Abstraction has 1492 states and 1596 transitions. [2020-10-12 13:57:23,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 13:57:23,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 1596 transitions. [2020-10-12 13:57:23,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 722 [2020-10-12 13:57:23,253 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:57:23,254 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:57:23,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 13:57:23,254 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:57:23,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:57:23,255 INFO L82 PathProgramCache]: Analyzing trace with hash 309274230, now seen corresponding path program 1 times [2020-10-12 13:57:23,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:57:23,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1687782767] [2020-10-12 13:57:23,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:57:23,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:23,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:23,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:25,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:27,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:27,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 739 [2020-10-12 13:57:27,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:57:27,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3893 [2020-10-12 13:57:27,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:27,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:57:27,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-12 13:57:27,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-12 13:57:27,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:27,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:57:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:27,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:27,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:27,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:57:27,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:27,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:57:27,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:27,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:27,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:27,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:27,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:27,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:57:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:27,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:27,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:27,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:57:27,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:27,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 13:57:27,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:27,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:27,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:27,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:27,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:27,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:57:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:27,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:27,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:27,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:57:27,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:27,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 13:57:27,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:27,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:27,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:27,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:27,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:27,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:57:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:27,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:27,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:27,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:57:27,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:27,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:57:27,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:27,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:27,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:27,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:27,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:27,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:57:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:27,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:27,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:27,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 13:57:27,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:27,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-12 13:57:27,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:27,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:57:27,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:27,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-12 13:57:27,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:27,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-12 13:57:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:27,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:27,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:28,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:28,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:57:28,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:57:28,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 399 [2020-10-12 13:57:28,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:28,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:57:28,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:28,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:57:28,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:28,723 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-10-12 13:57:28,870 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-10-12 13:57:29,004 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-10-12 13:57:29,146 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2020-10-12 13:57:30,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1359 backedges. 698 proven. 2 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2020-10-12 13:57:30,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1687782767] [2020-10-12 13:57:30,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:57:30,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:57:30,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509928846] [2020-10-12 13:57:30,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:57:30,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:57:30,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:57:30,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:57:30,706 INFO L87 Difference]: Start difference. First operand 1492 states and 1596 transitions. Second operand 13 states. [2020-10-12 13:57:31,165 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-10-12 13:57:31,583 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-10-12 13:57:31,762 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-12 13:57:31,917 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-12 13:57:32,137 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-12 13:57:32,328 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2020-10-12 13:57:33,018 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2020-10-12 13:57:33,451 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2020-10-12 13:57:33,653 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2020-10-12 13:57:33,825 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-10-12 13:57:34,085 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-10-12 13:57:34,293 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 53 [2020-10-12 13:57:34,515 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2020-10-12 13:57:34,816 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2020-10-12 13:57:34,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:57:34,914 INFO L93 Difference]: Finished difference Result 2996 states and 3224 transitions. [2020-10-12 13:57:34,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 13:57:34,915 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 721 [2020-10-12 13:57:34,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:57:34,922 INFO L225 Difference]: With dead ends: 2996 [2020-10-12 13:57:34,922 INFO L226 Difference]: Without dead ends: 1681 [2020-10-12 13:57:34,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2020-10-12 13:57:34,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2020-10-12 13:57:34,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1667. [2020-10-12 13:57:34,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1667 states. [2020-10-12 13:57:34,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 1776 transitions. [2020-10-12 13:57:34,956 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 1776 transitions. Word has length 721 [2020-10-12 13:57:34,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:57:34,957 INFO L479 AbstractCegarLoop]: Abstraction has 1667 states and 1776 transitions. [2020-10-12 13:57:34,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:57:34,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 1776 transitions. [2020-10-12 13:57:34,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 740 [2020-10-12 13:57:34,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:57:34,965 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:57:34,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 13:57:34,966 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:57:34,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:57:34,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1691966770, now seen corresponding path program 1 times [2020-10-12 13:57:34,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:57:34,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482002613] [2020-10-12 13:57:34,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:57:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:35,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:35,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:35,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:36,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:38,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:40,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:40,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 757 [2020-10-12 13:57:40,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:57:40,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-12 13:57:40,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:40,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:57:40,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-12 13:57:40,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-12 13:57:40,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:40,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:57:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:40,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:40,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:40,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:57:40,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:40,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:57:40,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:40,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:40,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:40,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:40,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:40,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:57:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:40,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:40,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:40,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:57:40,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:40,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 13:57:40,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:40,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:40,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:40,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:40,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:40,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:57:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:40,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:40,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:40,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:57:40,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:40,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:57:40,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:40,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:40,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:40,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:40,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:40,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:57:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:40,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:40,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:40,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:57:40,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:40,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 13:57:40,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:40,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:57:40,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:40,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-12 13:57:40,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:40,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:57:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:40,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:40,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:40,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:40,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:57:40,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:57:40,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-12 13:57:40,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:40,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:57:40,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:40,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 13:57:40,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:41,140 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2020-10-12 13:57:41,310 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2020-10-12 13:57:41,494 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 58 [2020-10-12 13:57:41,698 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2020-10-12 13:57:41,906 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2020-10-12 13:57:42,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-12 13:57:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:42,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:42,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:42,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:57:42,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:42,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 13:57:42,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:42,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:42,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-12 13:57:42,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:42,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:43,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1377 backedges. 549 proven. 176 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2020-10-12 13:57:43,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1482002613] [2020-10-12 13:57:43,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:57:43,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:57:43,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203335925] [2020-10-12 13:57:43,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:57:43,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:57:43,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:57:43,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:57:43,827 INFO L87 Difference]: Start difference. First operand 1667 states and 1776 transitions. Second operand 13 states. [2020-10-12 13:57:44,465 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2020-10-12 13:57:44,950 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2020-10-12 13:57:45,205 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2020-10-12 13:57:45,385 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-10-12 13:57:45,615 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-12 13:57:45,869 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 94 [2020-10-12 13:57:46,136 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2020-10-12 13:57:46,852 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-10-12 13:57:47,328 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2020-10-12 13:57:47,622 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2020-10-12 13:57:47,816 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2020-10-12 13:57:48,087 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 70 [2020-10-12 13:57:48,353 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 76 [2020-10-12 13:57:48,710 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2020-10-12 13:57:48,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:57:48,976 INFO L93 Difference]: Finished difference Result 3522 states and 3769 transitions. [2020-10-12 13:57:48,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 13:57:48,976 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 739 [2020-10-12 13:57:48,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:57:48,984 INFO L225 Difference]: With dead ends: 3522 [2020-10-12 13:57:48,985 INFO L226 Difference]: Without dead ends: 1993 [2020-10-12 13:57:48,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=253, Invalid=617, Unknown=0, NotChecked=0, Total=870 [2020-10-12 13:57:48,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2020-10-12 13:57:49,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1909. [2020-10-12 13:57:49,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1909 states. [2020-10-12 13:57:49,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1909 states to 1909 states and 2027 transitions. [2020-10-12 13:57:49,024 INFO L78 Accepts]: Start accepts. Automaton has 1909 states and 2027 transitions. Word has length 739 [2020-10-12 13:57:49,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:57:49,025 INFO L479 AbstractCegarLoop]: Abstraction has 1909 states and 2027 transitions. [2020-10-12 13:57:49,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:57:49,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1909 states and 2027 transitions. [2020-10-12 13:57:49,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 821 [2020-10-12 13:57:49,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:57:49,034 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:57:49,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 13:57:49,035 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:57:49,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:57:49,035 INFO L82 PathProgramCache]: Analyzing trace with hash -937934903, now seen corresponding path program 1 times [2020-10-12 13:57:49,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:57:49,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281049115] [2020-10-12 13:57:49,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:57:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:49,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:49,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:50,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:53,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:53,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 840 [2020-10-12 13:57:53,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:57:53,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4260 [2020-10-12 13:57:53,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:53,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:57:53,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 612 [2020-10-12 13:57:53,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-12 13:57:53,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:53,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:57:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:53,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:53,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:53,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:57:53,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:53,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:57:53,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:53,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:53,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:53,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:53,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:53,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:57:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:53,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:53,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:53,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:57:53,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:53,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 13:57:53,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:53,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:53,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:53,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:53,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:53,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:57:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:53,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:53,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:53,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:57:53,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:53,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:57:53,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:53,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:53,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:53,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:53,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:53,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:57:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:53,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:53,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:53,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:57:53,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:53,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:57:53,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:53,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:53,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:53,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:53,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:53,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:57:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:53,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:53,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:53,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:57:53,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:53,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:57:53,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:53,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:53,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:53,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:53,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:53,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:57:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:53,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:53,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:53,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:57:53,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:53,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 13:57:53,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:53,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:57:53,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:53,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 13:57:53,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:53,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:57:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:53,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:54,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:54,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:54,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:57:54,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:57:54,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-10-12 13:57:54,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:54,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:57:54,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:54,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:57:54,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:56,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1822 backedges. 839 proven. 2 refuted. 0 times theorem prover too weak. 981 trivial. 0 not checked. [2020-10-12 13:57:56,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281049115] [2020-10-12 13:57:56,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:57:56,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:57:56,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362510344] [2020-10-12 13:57:56,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:57:56,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:57:56,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:57:56,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:57:56,454 INFO L87 Difference]: Start difference. First operand 1909 states and 2027 transitions. Second operand 13 states. [2020-10-12 13:57:57,012 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-10-12 13:57:57,193 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-10-12 13:57:57,322 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-10-12 13:57:57,622 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-12 13:57:57,877 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2020-10-12 13:57:58,189 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-10-12 13:57:58,892 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2020-10-12 13:57:59,083 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 54 [2020-10-12 13:57:59,230 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2020-10-12 13:57:59,518 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 60 [2020-10-12 13:57:59,779 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2020-10-12 13:58:00,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:58:00,172 INFO L93 Difference]: Finished difference Result 3824 states and 4081 transitions. [2020-10-12 13:58:00,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 13:58:00,177 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 820 [2020-10-12 13:58:00,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:58:00,184 INFO L225 Difference]: With dead ends: 3824 [2020-10-12 13:58:00,184 INFO L226 Difference]: Without dead ends: 1995 [2020-10-12 13:58:00,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=252, Invalid=618, Unknown=0, NotChecked=0, Total=870 [2020-10-12 13:58:00,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2020-10-12 13:58:00,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1985. [2020-10-12 13:58:00,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1985 states. [2020-10-12 13:58:00,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1985 states to 1985 states and 2105 transitions. [2020-10-12 13:58:00,225 INFO L78 Accepts]: Start accepts. Automaton has 1985 states and 2105 transitions. Word has length 820 [2020-10-12 13:58:00,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:58:00,226 INFO L479 AbstractCegarLoop]: Abstraction has 1985 states and 2105 transitions. [2020-10-12 13:58:00,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:58:00,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1985 states and 2105 transitions. [2020-10-12 13:58:00,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 895 [2020-10-12 13:58:00,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:58:00,236 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:58:00,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 13:58:00,237 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:58:00,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:58:00,237 INFO L82 PathProgramCache]: Analyzing trace with hash -2050437235, now seen corresponding path program 1 times [2020-10-12 13:58:00,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:58:00,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1381256997] [2020-10-12 13:58:00,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:58:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:00,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:00,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:02,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:04,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:04,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 914 [2020-10-12 13:58:04,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:58:04,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4211 [2020-10-12 13:58:04,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:04,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:58:04,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 686 [2020-10-12 13:58:04,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-12 13:58:04,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:04,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:58:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:04,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:04,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:04,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:58:04,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:04,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:58:04,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:04,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:04,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:04,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:04,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:04,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:58:04,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:04,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:04,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:04,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:58:04,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:04,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:58:04,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:04,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:04,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:04,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:04,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:04,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:58:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:04,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:04,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:04,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:58:04,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:04,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:58:04,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:04,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:04,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:04,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:04,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:04,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:58:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:04,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:04,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:04,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:58:04,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:04,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:58:04,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:04,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:04,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:58:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:04,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:04,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:04,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 13:58:04,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:04,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 13:58:04,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:04,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:04,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:04,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:04,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:04,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-12 13:58:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:04,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:04,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:04,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 13:58:04,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:04,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-12 13:58:04,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:04,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:58:04,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:04,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-12 13:58:04,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:05,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-12 13:58:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:05,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:05,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:05,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:05,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:58:05,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:58:05,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-10-12 13:58:05,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:05,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:58:05,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:58:05,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:58:05,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:06,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2067 backedges. 913 proven. 2 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2020-10-12 13:58:06,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1381256997] [2020-10-12 13:58:06,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:58:06,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:58:06,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285645940] [2020-10-12 13:58:06,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:58:06,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:58:06,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:58:06,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:58:06,949 INFO L87 Difference]: Start difference. First operand 1985 states and 2105 transitions. Second operand 13 states. [2020-10-12 13:58:08,257 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-12 13:58:08,413 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 63 [2020-10-12 13:58:09,876 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2020-10-12 13:58:10,028 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2020-10-12 13:58:10,209 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2020-10-12 13:58:10,417 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-12 13:58:10,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:58:10,650 INFO L93 Difference]: Finished difference Result 3976 states and 4239 transitions. [2020-10-12 13:58:10,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 13:58:10,650 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 894 [2020-10-12 13:58:10,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:58:10,657 INFO L225 Difference]: With dead ends: 3976 [2020-10-12 13:58:10,657 INFO L226 Difference]: Without dead ends: 2157 [2020-10-12 13:58:10,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=256, Invalid=614, Unknown=0, NotChecked=0, Total=870 [2020-10-12 13:58:10,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2157 states. [2020-10-12 13:58:10,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2157 to 2147. [2020-10-12 13:58:10,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2147 states. [2020-10-12 13:58:10,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2147 states to 2147 states and 2270 transitions. [2020-10-12 13:58:10,700 INFO L78 Accepts]: Start accepts. Automaton has 2147 states and 2270 transitions. Word has length 894 [2020-10-12 13:58:10,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:58:10,701 INFO L479 AbstractCegarLoop]: Abstraction has 2147 states and 2270 transitions. [2020-10-12 13:58:10,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:58:10,701 INFO L276 IsEmpty]: Start isEmpty. Operand 2147 states and 2270 transitions. [2020-10-12 13:58:10,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 897 [2020-10-12 13:58:10,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:58:10,712 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:58:10,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 13:58:10,713 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:58:10,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:58:10,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1607540991, now seen corresponding path program 1 times [2020-10-12 13:58:10,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:58:10,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923681607] [2020-10-12 13:58:10,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:58:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:10,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:11,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:11,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 918 [2020-10-12 13:58:11,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:11,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 918 [2020-10-12 13:58:11,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:11,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:58:11,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-12 13:58:11,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 13:58:11,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:11,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:58:11,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:11,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:11,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:11,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:58:11,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:11,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:58:11,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:11,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:11,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:11,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:11,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:11,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:58:11,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:11,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:11,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:11,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:58:11,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:11,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 13:58:11,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:11,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:11,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:11,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:11,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:11,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:58:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:11,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:11,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:11,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:58:11,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:11,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:58:11,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:11,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:11,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:11,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:11,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:11,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:58:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:11,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:11,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:11,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:58:11,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:11,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:58:11,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:11,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:11,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:11,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:11,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:11,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:58:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:11,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:11,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:11,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:58:11,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:11,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:58:11,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:11,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:11,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:11,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:11,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:12,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:58:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:12,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:12,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:12,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:58:12,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:12,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:58:12,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:12,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:12,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:12,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:12,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:12,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:58:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:12,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:12,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:12,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:58:12,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:12,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 13:58:12,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:12,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:12,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:12,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:12,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:12,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:58:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:12,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:12,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:12,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:58:12,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:12,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 13:58:12,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:12,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:58:12,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:12,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 13:58:12,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:12,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2318 backedges. 291 proven. 7 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2020-10-12 13:58:12,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923681607] [2020-10-12 13:58:12,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:58:12,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 13:58:12,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091113170] [2020-10-12 13:58:12,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 13:58:12,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:58:12,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 13:58:12,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:58:12,538 INFO L87 Difference]: Start difference. First operand 2147 states and 2270 transitions. Second operand 6 states. [2020-10-12 13:58:14,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:58:14,068 INFO L93 Difference]: Finished difference Result 4670 states and 5095 transitions. [2020-10-12 13:58:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 13:58:14,069 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 896 [2020-10-12 13:58:14,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:58:14,078 INFO L225 Difference]: With dead ends: 4670 [2020-10-12 13:58:14,079 INFO L226 Difference]: Without dead ends: 2711 [2020-10-12 13:58:14,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:58:14,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2711 states. [2020-10-12 13:58:14,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2711 to 2707. [2020-10-12 13:58:14,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2707 states. [2020-10-12 13:58:14,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2707 states to 2707 states and 2979 transitions. [2020-10-12 13:58:14,131 INFO L78 Accepts]: Start accepts. Automaton has 2707 states and 2979 transitions. Word has length 896 [2020-10-12 13:58:14,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:58:14,132 INFO L479 AbstractCegarLoop]: Abstraction has 2707 states and 2979 transitions. [2020-10-12 13:58:14,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 13:58:14,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2707 states and 2979 transitions. [2020-10-12 13:58:14,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 971 [2020-10-12 13:58:14,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:58:14,145 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:58:14,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 13:58:14,145 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:58:14,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:58:14,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1319533531, now seen corresponding path program 1 times [2020-10-12 13:58:14,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:58:14,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636672869] [2020-10-12 13:58:14,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:58:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:14,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:15,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:15,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:16,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:16,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 994 [2020-10-12 13:58:16,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:58:16,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2307 [2020-10-12 13:58:16,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:16,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:58:16,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 947 [2020-10-12 13:58:16,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 13:58:16,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:16,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:58:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:16,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:16,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:16,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:58:16,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:16,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:58:16,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:16,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:16,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:16,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:16,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:16,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:58:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:16,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:16,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:16,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:58:16,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:16,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:58:16,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:16,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:16,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:16,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:16,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:16,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:58:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:16,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:16,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:16,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:58:16,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:16,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 13:58:16,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:16,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:16,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:16,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:16,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:16,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:58:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:16,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:16,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:16,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:58:16,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:16,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 13:58:16,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:16,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:16,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:16,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:16,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:16,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:58:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:16,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:16,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:16,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:58:16,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:16,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:58:16,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:16,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:16,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:16,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:16,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:16,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:58:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:16,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:16,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:16,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:58:16,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:16,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:58:16,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:16,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:16,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:16,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:16,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:17,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:58:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:17,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:17,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:17,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:58:17,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:17,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 13:58:17,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:17,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:17,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:17,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:17,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:17,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:58:17,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:17,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:17,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:17,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:58:17,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:17,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 13:58:17,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:17,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:17,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:17,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:17,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:17,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:58:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:17,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:17,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:17,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:58:17,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:17,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 13:58:17,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:17,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:58:17,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:17,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 13:58:17,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:17,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 333 proven. 8 refuted. 0 times theorem prover too weak. 2535 trivial. 0 not checked. [2020-10-12 13:58:17,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636672869] [2020-10-12 13:58:17,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:58:17,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:58:17,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267293768] [2020-10-12 13:58:17,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:58:17,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:58:17,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:58:17,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:58:17,641 INFO L87 Difference]: Start difference. First operand 2707 states and 2979 transitions. Second operand 5 states. [2020-10-12 13:58:18,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:58:18,431 INFO L93 Difference]: Finished difference Result 5248 states and 5821 transitions. [2020-10-12 13:58:18,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:58:18,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 970 [2020-10-12 13:58:18,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:58:18,440 INFO L225 Difference]: With dead ends: 5248 [2020-10-12 13:58:18,440 INFO L226 Difference]: Without dead ends: 2711 [2020-10-12 13:58:18,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:58:18,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2711 states. [2020-10-12 13:58:18,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2711 to 2707. [2020-10-12 13:58:18,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2707 states. [2020-10-12 13:58:18,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2707 states to 2707 states and 2976 transitions. [2020-10-12 13:58:18,492 INFO L78 Accepts]: Start accepts. Automaton has 2707 states and 2976 transitions. Word has length 970 [2020-10-12 13:58:18,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:58:18,493 INFO L479 AbstractCegarLoop]: Abstraction has 2707 states and 2976 transitions. [2020-10-12 13:58:18,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:58:18,493 INFO L276 IsEmpty]: Start isEmpty. Operand 2707 states and 2976 transitions. [2020-10-12 13:58:18,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 977 [2020-10-12 13:58:18,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:58:18,505 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:58:18,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 13:58:18,506 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:58:18,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:58:18,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1993112209, now seen corresponding path program 1 times [2020-10-12 13:58:18,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:58:18,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1548504829] [2020-10-12 13:58:18,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:58:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:18,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:18,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:20,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:20,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:22,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:22,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1000 [2020-10-12 13:58:22,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:58:22,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3679 [2020-10-12 13:58:22,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:22,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 13:58:22,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 13:58:22,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 309 [2020-10-12 13:58:22,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:22,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:58:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:22,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:22,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:22,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:58:22,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:22,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:58:22,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:22,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:22,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:22,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:22,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:22,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:58:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:22,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:22,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:22,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:58:22,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:22,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 13:58:22,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:22,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:22,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:22,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:22,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:22,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:58:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:22,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:22,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:22,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:58:22,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:22,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:58:22,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:22,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:22,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:22,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:22,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:22,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:58:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:22,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:22,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:22,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:58:22,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:22,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 13:58:22,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:22,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:22,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:22,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:22,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:22,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:58:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:22,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:22,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:22,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:58:22,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:22,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:58:22,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:22,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:22,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:22,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:58:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:22,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:22,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:22,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:58:22,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:22,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 13:58:22,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:22,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:22,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:58:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:22,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:22,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:22,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:58:22,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:22,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 13:58:22,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:22,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:58:22,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:22,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 13:58:22,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:22,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:58:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:22,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:23,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:23,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:58:23,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:23,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-12 13:58:23,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:23,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:58:23,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:58:23,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:58:23,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:23,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:58:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:23,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:23,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:23,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:23,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 13:58:23,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:58:23,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 13:58:23,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:23,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:58:23,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:58:23,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 13:58:23,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:23,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2914 backedges. 1385 proven. 86 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2020-10-12 13:58:23,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1548504829] [2020-10-12 13:58:23,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:58:23,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 13:58:23,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336336751] [2020-10-12 13:58:23,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 13:58:23,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:58:23,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 13:58:23,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-12 13:58:23,672 INFO L87 Difference]: Start difference. First operand 2707 states and 2976 transitions. Second operand 9 states. [2020-10-12 13:58:26,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:58:26,045 INFO L93 Difference]: Finished difference Result 6370 states and 7289 transitions. [2020-10-12 13:58:26,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 13:58:26,046 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 976 [2020-10-12 13:58:26,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:58:26,056 INFO L225 Difference]: With dead ends: 6370 [2020-10-12 13:58:26,056 INFO L226 Difference]: Without dead ends: 3851 [2020-10-12 13:58:26,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2020-10-12 13:58:26,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3851 states. [2020-10-12 13:58:26,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3851 to 3829. [2020-10-12 13:58:26,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3829 states. [2020-10-12 13:58:26,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3829 states to 3829 states and 4405 transitions. [2020-10-12 13:58:26,134 INFO L78 Accepts]: Start accepts. Automaton has 3829 states and 4405 transitions. Word has length 976 [2020-10-12 13:58:26,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:58:26,135 INFO L479 AbstractCegarLoop]: Abstraction has 3829 states and 4405 transitions. [2020-10-12 13:58:26,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 13:58:26,135 INFO L276 IsEmpty]: Start isEmpty. Operand 3829 states and 4405 transitions. [2020-10-12 13:58:26,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 980 [2020-10-12 13:58:26,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:58:26,148 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:58:26,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 13:58:26,148 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:58:26,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:58:26,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1046834250, now seen corresponding path program 1 times [2020-10-12 13:58:26,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:58:26,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949324801] [2020-10-12 13:58:26,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:58:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:26,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:26,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:28,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:29,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:29,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1003 [2020-10-12 13:58:29,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:58:29,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3084 [2020-10-12 13:58:29,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:29,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:58:29,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 956 [2020-10-12 13:58:29,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 13:58:29,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:29,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:58:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:29,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:29,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:29,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:58:29,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:29,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:58:29,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:29,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:29,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:29,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:29,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:29,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:58:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:29,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:29,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:29,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:58:29,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:29,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:58:29,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:29,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:29,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:29,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:29,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:29,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:58:29,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:29,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:29,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:29,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:58:29,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:29,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:58:29,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:29,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:29,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:29,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:29,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:29,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:58:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:29,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:29,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:29,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:58:29,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:29,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:58:29,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:29,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:29,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:29,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:29,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:29,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:58:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:29,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:29,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:29,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:58:29,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:29,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:58:29,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:29,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:29,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:29,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:29,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:29,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:58:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:29,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:29,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:29,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:58:29,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:29,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 13:58:29,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:29,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:29,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:29,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:29,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:29,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:58:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:29,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:29,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:29,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:58:29,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:29,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 13:58:29,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:29,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:29,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:29,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:29,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:29,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:58:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:29,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:29,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:29,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:58:29,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:29,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 13:58:29,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:29,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:29,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:29,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:29,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:29,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:58:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:29,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:29,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:29,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 13:58:29,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:29,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 13:58:29,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:29,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:58:29,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:29,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 13:58:29,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:30,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2930 backedges. 333 proven. 8 refuted. 0 times theorem prover too weak. 2589 trivial. 0 not checked. [2020-10-12 13:58:30,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949324801] [2020-10-12 13:58:30,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:58:30,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:58:30,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545339473] [2020-10-12 13:58:30,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:58:30,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:58:30,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:58:30,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:58:30,226 INFO L87 Difference]: Start difference. First operand 3829 states and 4405 transitions. Second operand 5 states. [2020-10-12 13:58:31,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:58:31,349 INFO L93 Difference]: Finished difference Result 9126 states and 10731 transitions. [2020-10-12 13:58:31,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:58:31,356 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 979 [2020-10-12 13:58:31,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:58:31,376 INFO L225 Difference]: With dead ends: 9126 [2020-10-12 13:58:31,376 INFO L226 Difference]: Without dead ends: 5485 [2020-10-12 13:58:31,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:58:31,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5485 states. [2020-10-12 13:58:31,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5485 to 4931. [2020-10-12 13:58:31,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4931 states. [2020-10-12 13:58:31,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4931 states to 4931 states and 5652 transitions. [2020-10-12 13:58:31,471 INFO L78 Accepts]: Start accepts. Automaton has 4931 states and 5652 transitions. Word has length 979 [2020-10-12 13:58:31,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:58:31,472 INFO L479 AbstractCegarLoop]: Abstraction has 4931 states and 5652 transitions. [2020-10-12 13:58:31,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:58:31,472 INFO L276 IsEmpty]: Start isEmpty. Operand 4931 states and 5652 transitions. [2020-10-12 13:58:31,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1060 [2020-10-12 13:58:31,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:58:31,490 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:58:31,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 13:58:31,491 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:58:31,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:58:31,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1871053498, now seen corresponding path program 1 times [2020-10-12 13:58:31,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:58:31,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557369075] [2020-10-12 13:58:31,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:58:31,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:31,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:31,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:33,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:33,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:34,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:36,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:36,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1085 [2020-10-12 13:58:36,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:58:36,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 13:58:36,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:36,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:58:36,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 956 [2020-10-12 13:58:36,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-12 13:58:36,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:36,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:58:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:36,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:36,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:36,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:58:36,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:36,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:58:36,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:36,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:36,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:58:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:36,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:36,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:36,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:58:36,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:36,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:58:36,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:36,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:36,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:36,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:36,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:36,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:58:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:36,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:36,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:36,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:58:36,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:36,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:58:36,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:36,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:36,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:36,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:36,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:36,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:58:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:36,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:36,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:36,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:58:36,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:36,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:58:36,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:36,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:36,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:36,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:36,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:36,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:58:36,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:36,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:36,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:36,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:58:36,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:36,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:58:36,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:36,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:36,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:36,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:36,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:36,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:58:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:36,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:36,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:36,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:58:36,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:36,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:58:36,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:36,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:36,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:36,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:36,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:36,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:58:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:36,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:37,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:37,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:58:37,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:37,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:58:37,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:37,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:37,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:37,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:37,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:37,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:58:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:37,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:37,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:37,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:58:37,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:37,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 13:58:37,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:37,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:37,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:37,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:37,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:37,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:58:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:37,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:37,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:37,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 13:58:37,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:37,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 13:58:37,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:37,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:58:37,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:37,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 13:58:37,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:37,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 940 [2020-10-12 13:58:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:37,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:37,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:37,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 13:58:37,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:37,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 13:58:37,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:37,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:58:37,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:58:37,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 13:58:37,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:37,673 INFO L134 CoverageAnalysis]: Checked inductivity of 3606 backedges. 1007 proven. 2 refuted. 0 times theorem prover too weak. 2597 trivial. 0 not checked. [2020-10-12 13:58:37,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [557369075] [2020-10-12 13:58:37,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:58:37,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:58:37,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325323011] [2020-10-12 13:58:37,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:58:37,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:58:37,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:58:37,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:58:37,675 INFO L87 Difference]: Start difference. First operand 4931 states and 5652 transitions. Second operand 7 states. [2020-10-12 13:58:39,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:58:39,067 INFO L93 Difference]: Finished difference Result 9900 states and 11407 transitions. [2020-10-12 13:58:39,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 13:58:39,069 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1059 [2020-10-12 13:58:39,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:58:39,081 INFO L225 Difference]: With dead ends: 9900 [2020-10-12 13:58:39,081 INFO L226 Difference]: Without dead ends: 4973 [2020-10-12 13:58:39,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:58:39,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4973 states. [2020-10-12 13:58:39,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4973 to 4745. [2020-10-12 13:58:39,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4745 states. [2020-10-12 13:58:39,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4745 states to 4745 states and 5271 transitions. [2020-10-12 13:58:39,174 INFO L78 Accepts]: Start accepts. Automaton has 4745 states and 5271 transitions. Word has length 1059 [2020-10-12 13:58:39,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:58:39,176 INFO L479 AbstractCegarLoop]: Abstraction has 4745 states and 5271 transitions. [2020-10-12 13:58:39,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:58:39,176 INFO L276 IsEmpty]: Start isEmpty. Operand 4745 states and 5271 transitions. [2020-10-12 13:58:39,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1072 [2020-10-12 13:58:39,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:58:39,197 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:58:39,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 13:58:39,197 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:58:39,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:58:39,198 INFO L82 PathProgramCache]: Analyzing trace with hash -431281250, now seen corresponding path program 1 times [2020-10-12 13:58:39,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:58:39,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422610222] [2020-10-12 13:58:39,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:58:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:39,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:39,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:40,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:41,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:41,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:44,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:44,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1097 [2020-10-12 13:58:44,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:58:44,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-12 13:58:44,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:44,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:58:44,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1050 [2020-10-12 13:58:44,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 13:58:44,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:44,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:58:44,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:44,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:44,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:44,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:58:44,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:44,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:58:44,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:44,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:44,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:44,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:44,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:44,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:58:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:44,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:44,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:44,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:58:44,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:44,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:58:44,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:44,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:44,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:44,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:44,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:44,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:58:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:44,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:44,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:44,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:58:44,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:44,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:58:44,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:44,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:44,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:44,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:44,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:44,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:58:44,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:44,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:44,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:44,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:58:44,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:44,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:58:44,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:44,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:44,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:44,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:44,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:44,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:58:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:44,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:44,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:44,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:58:44,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:44,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:58:44,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:44,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:44,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:44,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:44,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:44,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:58:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:44,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:44,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:44,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:58:44,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:44,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:58:44,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:44,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:44,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:44,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:44,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:44,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:58:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:44,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:44,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:44,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:58:44,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:44,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:58:44,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:44,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:44,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:44,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:44,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:44,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:58:44,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:44,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:44,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:44,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:58:44,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:44,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 13:58:44,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:44,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:44,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:44,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:44,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:44,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:58:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:44,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:44,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:44,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 13:58:44,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:44,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:58:44,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:44,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:44,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:44,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:44,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:44,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 952 [2020-10-12 13:58:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:44,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:44,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:44,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 13:58:44,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:44,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 13:58:44,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:44,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:58:44,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:44,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 13:58:44,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:45,352 INFO L134 CoverageAnalysis]: Checked inductivity of 3666 backedges. 375 proven. 9 refuted. 0 times theorem prover too weak. 3282 trivial. 0 not checked. [2020-10-12 13:58:45,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [422610222] [2020-10-12 13:58:45,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:58:45,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:58:45,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878813839] [2020-10-12 13:58:45,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:58:45,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:58:45,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:58:45,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:58:45,354 INFO L87 Difference]: Start difference. First operand 4745 states and 5271 transitions. Second operand 5 states. [2020-10-12 13:58:46,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:58:46,525 INFO L93 Difference]: Finished difference Result 10404 states and 11774 transitions. [2020-10-12 13:58:46,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:58:46,527 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1071 [2020-10-12 13:58:46,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:58:46,539 INFO L225 Difference]: With dead ends: 10404 [2020-10-12 13:58:46,539 INFO L226 Difference]: Without dead ends: 5477 [2020-10-12 13:58:46,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:58:46,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5477 states. [2020-10-12 13:58:46,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5477 to 5475. [2020-10-12 13:58:46,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5475 states. [2020-10-12 13:58:46,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 6093 transitions. [2020-10-12 13:58:46,643 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 6093 transitions. Word has length 1071 [2020-10-12 13:58:46,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:58:46,644 INFO L479 AbstractCegarLoop]: Abstraction has 5475 states and 6093 transitions. [2020-10-12 13:58:46,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:58:46,645 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 6093 transitions. [2020-10-12 13:58:46,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1086 [2020-10-12 13:58:46,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:58:46,669 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:58:46,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 13:58:46,669 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:58:46,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:58:46,670 INFO L82 PathProgramCache]: Analyzing trace with hash 970500058, now seen corresponding path program 1 times [2020-10-12 13:58:46,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:58:46,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803426308] [2020-10-12 13:58:46,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:58:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:46,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:47,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:48,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:49,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:49,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:51,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:51,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1111 [2020-10-12 13:58:51,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:58:51,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-12 13:58:51,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:51,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:58:51,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-12 13:58:51,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 13:58:51,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:51,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:58:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:51,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:51,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:51,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:58:51,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:51,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:58:51,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:51,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:51,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:51,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:51,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:51,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:58:51,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:51,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:51,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:51,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:58:51,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:51,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:58:51,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:51,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:51,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:51,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:51,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:52,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:58:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:52,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:52,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:52,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:58:52,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:52,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:58:52,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:52,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:52,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:52,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:52,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:52,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:58:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:52,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:52,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:52,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:58:52,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:52,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:58:52,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:52,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:52,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:52,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:52,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:52,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:58:52,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:52,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:52,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:52,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:58:52,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:52,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:58:52,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:52,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:52,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:52,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:52,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:52,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:58:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:52,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:52,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:52,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:58:52,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:52,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 13:58:52,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:52,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:52,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:52,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:52,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:52,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:58:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:52,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:52,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:52,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:58:52,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:52,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:58:52,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:52,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:52,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:52,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:52,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:58:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:52,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:52,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:52,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:58:52,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:52,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-12 13:58:52,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:52,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:58:52,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:52,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 13:58:52,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:52,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:58:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:52,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:52,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:52,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 13:58:52,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:52,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 13:58:52,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:52,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:58:52,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:58:52,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 13:58:52,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:52,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 952 [2020-10-12 13:58:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:52,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:52,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:52,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 13:58:52,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:52,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 13:58:52,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:52,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:52,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-12 13:58:52,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:52,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:52,936 INFO L134 CoverageAnalysis]: Checked inductivity of 3751 backedges. 1029 proven. 93 refuted. 0 times theorem prover too weak. 2629 trivial. 0 not checked. [2020-10-12 13:58:52,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1803426308] [2020-10-12 13:58:52,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:58:52,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:58:52,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304101091] [2020-10-12 13:58:52,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:58:52,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:58:52,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:58:52,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:58:52,938 INFO L87 Difference]: Start difference. First operand 5475 states and 6093 transitions. Second operand 7 states. [2020-10-12 13:58:54,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:58:54,421 INFO L93 Difference]: Finished difference Result 11686 states and 13146 transitions. [2020-10-12 13:58:54,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 13:58:54,427 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1085 [2020-10-12 13:58:54,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:58:54,443 INFO L225 Difference]: With dead ends: 11686 [2020-10-12 13:58:54,444 INFO L226 Difference]: Without dead ends: 6027 [2020-10-12 13:58:54,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-12 13:58:54,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6027 states. [2020-10-12 13:58:54,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6027 to 6025. [2020-10-12 13:58:54,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6025 states. [2020-10-12 13:58:54,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6025 states to 6025 states and 6640 transitions. [2020-10-12 13:58:54,540 INFO L78 Accepts]: Start accepts. Automaton has 6025 states and 6640 transitions. Word has length 1085 [2020-10-12 13:58:54,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:58:54,541 INFO L479 AbstractCegarLoop]: Abstraction has 6025 states and 6640 transitions. [2020-10-12 13:58:54,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:58:54,541 INFO L276 IsEmpty]: Start isEmpty. Operand 6025 states and 6640 transitions. [2020-10-12 13:58:54,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1288 [2020-10-12 13:58:54,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:58:54,568 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:58:54,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 13:58:54,568 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:58:54,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:58:54,569 INFO L82 PathProgramCache]: Analyzing trace with hash -581071738, now seen corresponding path program 1 times [2020-10-12 13:58:54,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:58:54,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [522404589] [2020-10-12 13:58:54,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:58:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:54,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:55,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:55,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:56,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:59,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:59,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1315 [2020-10-12 13:58:59,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:58:59,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 13:58:59,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:59,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 13:58:59,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 13:58:59,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 399 [2020-10-12 13:58:59,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:59,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:58:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:59,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:59,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:59,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:58:59,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:59,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:58:59,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:59,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:59,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:59,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:59,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:58:59,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:58:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:59,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:00,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:00,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:00,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:00,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 13:59:00,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:00,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:00,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:00,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:00,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:00,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:00,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:00,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:00,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:59:00,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:00,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 13:59:00,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:00,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:00,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:00,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:00,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:00,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:59:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:00,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:00,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:00,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:59:00,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:00,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 13:59:00,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:00,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:00,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:00,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:00,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:00,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:59:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:00,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:00,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:00,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:59:00,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:00,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:59:00,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:00,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:00,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:00,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:00,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:00,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:59:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:00,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:00,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:00,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:59:00,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:00,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 13:59:00,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:00,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:00,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:00,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:00,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:00,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:59:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:00,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:00,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:00,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:59:00,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:00,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 13:59:00,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 13:59:00,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:00,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:59:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:00,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:00,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:00,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:59:00,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:00,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-12 13:59:00,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:00,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:59:00,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:00,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:59:00,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:00,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:59:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:00,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:00,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:00,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:59:00,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:00,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 13:59:00,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:00,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:00,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:00,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 13:59:00,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:00,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:59:00,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:00,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:00,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:00,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 13:59:00,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:00,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 13:59:00,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:00,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:00,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:00,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 13:59:00,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:00,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-12 13:59:00,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:00,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:00,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:00,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-12 13:59:00,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:00,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-12 13:59:00,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:00,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:00,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 176 [2020-10-12 13:59:00,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:00,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:02,064 INFO L134 CoverageAnalysis]: Checked inductivity of 4955 backedges. 2448 proven. 478 refuted. 0 times theorem prover too weak. 2029 trivial. 0 not checked. [2020-10-12 13:59:02,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [522404589] [2020-10-12 13:59:02,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:02,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 13:59:02,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545887398] [2020-10-12 13:59:02,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 13:59:02,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:02,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 13:59:02,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:59:02,067 INFO L87 Difference]: Start difference. First operand 6025 states and 6640 transitions. Second operand 11 states. [2020-10-12 13:59:04,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:04,594 INFO L93 Difference]: Finished difference Result 12060 states and 13320 transitions. [2020-10-12 13:59:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 13:59:04,598 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1287 [2020-10-12 13:59:04,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:04,625 INFO L225 Difference]: With dead ends: 12060 [2020-10-12 13:59:04,625 INFO L226 Difference]: Without dead ends: 6223 [2020-10-12 13:59:04,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2020-10-12 13:59:04,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6223 states. [2020-10-12 13:59:04,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6223 to 6029. [2020-10-12 13:59:04,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6029 states. [2020-10-12 13:59:04,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6029 states to 6029 states and 6641 transitions. [2020-10-12 13:59:04,725 INFO L78 Accepts]: Start accepts. Automaton has 6029 states and 6641 transitions. Word has length 1287 [2020-10-12 13:59:04,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:04,726 INFO L479 AbstractCegarLoop]: Abstraction has 6029 states and 6641 transitions. [2020-10-12 13:59:04,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 13:59:04,726 INFO L276 IsEmpty]: Start isEmpty. Operand 6029 states and 6641 transitions. [2020-10-12 13:59:04,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1412 [2020-10-12 13:59:04,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:04,755 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:59:04,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 13:59:04,756 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:04,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:04,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1382496098, now seen corresponding path program 1 times [2020-10-12 13:59:04,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:04,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395695420] [2020-10-12 13:59:04,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:05,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:05,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:06,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:07,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:10,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:10,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1441 [2020-10-12 13:59:10,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:59:10,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-10-12 13:59:10,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:10,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:59:10,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1214 [2020-10-12 13:59:10,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-12 13:59:10,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:10,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:10,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:10,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:10,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:10,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:10,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:59:10,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:10,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:10,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:10,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:10,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:10,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:10,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:10,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:10,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:10,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:10,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:59:10,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:10,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:10,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:10,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:10,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:10,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:10,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:10,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:10,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:59:10,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:10,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:59:10,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:10,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:10,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:10,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:10,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:10,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:59:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:10,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:10,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:10,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:59:10,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:10,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:59:10,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:10,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:10,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:10,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:10,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:10,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:59:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:10,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:10,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:10,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:59:10,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:10,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:59:10,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:10,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:10,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:10,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:10,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:10,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:59:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:10,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:10,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:10,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:59:10,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:10,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 13:59:10,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:10,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:10,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:10,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:10,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:10,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:59:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:10,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:10,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:10,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:59:10,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:10,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 13:59:10,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:10,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:10,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:10,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:10,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:10,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:59:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:10,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:10,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:10,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:59:10,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:10,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 13:59:10,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:10,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:10,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:10,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:10,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:10,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:59:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:10,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:10,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:10,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:59:10,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:10,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:59:10,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:10,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:10,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:10,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:10,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:10,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:59:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:10,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:10,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:10,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:59:10,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:10,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 13:59:10,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:10,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:10,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:10,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:10,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 13:59:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:10,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:10,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:10,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 13:59:10,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:10,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 13:59:10,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:10,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:10,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:10,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 13:59:10,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:10,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1194 [2020-10-12 13:59:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:10,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:11,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:11,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:11,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-12 13:59:11,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:59:11,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 373 [2020-10-12 13:59:11,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:11,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:59:11,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:11,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-12 13:59:11,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:11,688 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 49 [2020-10-12 13:59:11,875 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2020-10-12 13:59:12,071 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-10-12 13:59:12,284 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2020-10-12 13:59:12,509 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-10-12 13:59:15,578 INFO L134 CoverageAnalysis]: Checked inductivity of 5991 backedges. 1640 proven. 2 refuted. 0 times theorem prover too weak. 4349 trivial. 0 not checked. [2020-10-12 13:59:15,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395695420] [2020-10-12 13:59:15,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:15,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:59:15,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035850313] [2020-10-12 13:59:15,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:59:15,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:15,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:59:15,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:59:15,580 INFO L87 Difference]: Start difference. First operand 6029 states and 6641 transitions. Second operand 13 states. [2020-10-12 13:59:16,323 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-10-12 13:59:16,567 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2020-10-12 13:59:16,840 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-12 13:59:17,025 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-10-12 13:59:17,292 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-10-12 13:59:17,524 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2020-10-12 13:59:17,772 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 84 [2020-10-12 13:59:19,020 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2020-10-12 13:59:19,327 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2020-10-12 13:59:19,591 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2020-10-12 13:59:19,829 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 62 [2020-10-12 13:59:20,166 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 66 [2020-10-12 13:59:20,421 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 69 [2020-10-12 13:59:20,717 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 72 [2020-10-12 13:59:20,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:20,912 INFO L93 Difference]: Finished difference Result 11882 states and 13118 transitions. [2020-10-12 13:59:20,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 13:59:20,913 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1411 [2020-10-12 13:59:20,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:20,924 INFO L225 Difference]: With dead ends: 11882 [2020-10-12 13:59:20,924 INFO L226 Difference]: Without dead ends: 5971 [2020-10-12 13:59:20,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=260, Invalid=670, Unknown=0, NotChecked=0, Total=930 [2020-10-12 13:59:20,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5971 states. [2020-10-12 13:59:21,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5971 to 5959. [2020-10-12 13:59:21,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5959 states. [2020-10-12 13:59:21,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5959 states to 5959 states and 6537 transitions. [2020-10-12 13:59:21,033 INFO L78 Accepts]: Start accepts. Automaton has 5959 states and 6537 transitions. Word has length 1411 [2020-10-12 13:59:21,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:21,035 INFO L479 AbstractCegarLoop]: Abstraction has 5959 states and 6537 transitions. [2020-10-12 13:59:21,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:59:21,035 INFO L276 IsEmpty]: Start isEmpty. Operand 5959 states and 6537 transitions. [2020-10-12 13:59:21,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1419 [2020-10-12 13:59:21,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:21,078 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:59:21,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 13:59:21,079 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:21,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:21,080 INFO L82 PathProgramCache]: Analyzing trace with hash 578132085, now seen corresponding path program 1 times [2020-10-12 13:59:21,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:21,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697041443] [2020-10-12 13:59:21,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:21,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:21,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:22,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:26,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:26,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1448 [2020-10-12 13:59:26,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:59:26,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-12 13:59:26,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:26,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 13:59:26,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1221 [2020-10-12 13:59:26,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 13:59:26,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:26,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:26,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:26,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:26,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:26,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:26,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:59:26,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:26,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:26,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:26,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:26,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:26,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:26,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:26,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:26,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:26,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:26,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:26,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:26,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:26,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:26,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:26,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:26,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:26,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:26,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:26,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:59:26,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:26,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:26,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:26,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:26,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:26,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:26,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:26,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:59:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:26,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:26,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:26,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:59:26,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:26,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:59:26,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:26,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:26,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:59:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:26,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:26,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:26,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:59:26,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:26,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 13:59:26,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:26,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:26,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:26,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:26,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:26,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:59:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:26,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:26,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:26,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:59:26,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:26,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:59:26,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:26,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:26,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:26,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:26,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:26,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:59:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:26,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:26,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:26,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:59:26,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:26,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:59:26,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:26,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:26,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:26,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:26,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:26,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:59:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:26,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:26,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:26,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:59:26,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:26,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 13:59:26,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:26,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:26,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:26,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:26,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:26,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:59:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:26,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:26,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:26,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:59:26,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:26,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 13:59:26,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:26,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:26,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:26,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:26,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:26,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:59:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:26,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:26,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:26,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:59:26,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:26,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 13:59:26,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:26,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:26,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:26,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:26,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:27,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 13:59:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:27,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:27,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:27,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 13:59:27,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:27,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 13:59:27,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:27,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:27,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:27,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 13:59:27,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:27,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1201 [2020-10-12 13:59:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:27,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:27,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:27,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:27,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-12 13:59:27,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:59:27,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471 [2020-10-12 13:59:27,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 13:59:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-12 13:59:27,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:27,851 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 30 [2020-10-12 13:59:27,966 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 35 [2020-10-12 13:59:29,910 INFO L134 CoverageAnalysis]: Checked inductivity of 6049 backedges. 1647 proven. 2 refuted. 0 times theorem prover too weak. 4400 trivial. 0 not checked. [2020-10-12 13:59:29,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697041443] [2020-10-12 13:59:29,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:29,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 13:59:29,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271842180] [2020-10-12 13:59:29,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 13:59:29,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:29,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 13:59:29,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-12 13:59:29,913 INFO L87 Difference]: Start difference. First operand 5959 states and 6537 transitions. Second operand 10 states. [2020-10-12 13:59:30,206 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-10-12 13:59:30,799 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-10-12 13:59:31,852 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2020-10-12 13:59:32,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:32,291 INFO L93 Difference]: Finished difference Result 11552 states and 12680 transitions. [2020-10-12 13:59:32,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 13:59:32,296 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1418 [2020-10-12 13:59:32,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:32,305 INFO L225 Difference]: With dead ends: 11552 [2020-10-12 13:59:32,306 INFO L226 Difference]: Without dead ends: 5679 [2020-10-12 13:59:32,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2020-10-12 13:59:32,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5679 states. [2020-10-12 13:59:32,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5679 to 5591. [2020-10-12 13:59:32,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5591 states. [2020-10-12 13:59:32,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5591 states to 5591 states and 6077 transitions. [2020-10-12 13:59:32,404 INFO L78 Accepts]: Start accepts. Automaton has 5591 states and 6077 transitions. Word has length 1418 [2020-10-12 13:59:32,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:32,405 INFO L479 AbstractCegarLoop]: Abstraction has 5591 states and 6077 transitions. [2020-10-12 13:59:32,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 13:59:32,405 INFO L276 IsEmpty]: Start isEmpty. Operand 5591 states and 6077 transitions. [2020-10-12 13:59:32,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1451 [2020-10-12 13:59:32,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:32,433 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:59:32,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 13:59:32,434 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:32,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:32,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1734157643, now seen corresponding path program 1 times [2020-10-12 13:59:32,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:32,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859810124] [2020-10-12 13:59:32,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:32,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:33,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:34,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:35,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:37,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:37,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:37,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1480 [2020-10-12 13:59:37,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:59:37,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5100 [2020-10-12 13:59:37,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:37,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:59:37,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1253 [2020-10-12 13:59:37,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-12 13:59:37,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:37,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:37,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:37,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:37,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:37,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:37,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:59:37,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:37,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:37,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:37,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:37,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:37,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:37,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:37,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:38,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:38,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:38,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:38,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:38,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:38,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:38,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:38,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:38,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:38,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:38,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:59:38,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:38,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 13:59:38,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:38,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:38,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:38,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:38,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:38,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:59:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:38,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:38,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:59:38,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:38,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:59:38,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:38,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:38,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:38,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:38,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:38,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:59:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:38,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:38,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:59:38,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:38,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 13:59:38,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:38,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:38,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:38,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:38,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:38,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:59:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:38,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:38,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:59:38,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:38,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 13:59:38,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:38,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:38,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:38,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:38,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:38,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:59:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:38,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:38,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:59:38,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:38,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:59:38,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:38,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:38,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:38,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:38,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:38,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:59:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:38,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:38,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:59:38,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:38,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 13:59:38,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:38,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:38,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:38,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:38,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:38,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:59:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:38,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:38,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:59:38,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:38,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 13:59:38,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:38,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:38,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:38,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:38,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:38,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:59:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:38,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:38,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:59:38,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:38,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 13:59:38,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:38,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:38,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:38,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:38,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:38,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 13:59:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:38,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:38,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:59:38,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:38,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 13:59:38,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:38,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:38,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:38,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 13:59:38,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:38,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-12 13:59:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:38,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:39,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:39,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-12 13:59:39,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:59:39,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-10-12 13:59:39,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:39,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:59:39,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:39,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-12 13:59:39,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:39,510 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 50 [2020-10-12 13:59:39,703 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2020-10-12 13:59:39,964 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-10-12 13:59:40,209 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2020-10-12 13:59:40,452 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2020-10-12 13:59:44,297 INFO L134 CoverageAnalysis]: Checked inductivity of 6287 backedges. 1679 proven. 2 refuted. 0 times theorem prover too weak. 4606 trivial. 0 not checked. [2020-10-12 13:59:44,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859810124] [2020-10-12 13:59:44,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:44,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:59:44,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049033760] [2020-10-12 13:59:44,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:59:44,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:44,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:59:44,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:59:44,300 INFO L87 Difference]: Start difference. First operand 5591 states and 6077 transitions. Second operand 13 states. [2020-10-12 13:59:45,137 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2020-10-12 13:59:45,430 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2020-10-12 13:59:45,676 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2020-10-12 13:59:45,937 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 78 [2020-10-12 13:59:46,195 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2020-10-12 13:59:46,570 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2020-10-12 13:59:46,853 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 91 [2020-10-12 13:59:47,376 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2020-10-12 13:59:48,274 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-10-12 13:59:48,596 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2020-10-12 13:59:48,881 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2020-10-12 13:59:49,189 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 67 [2020-10-12 13:59:49,555 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 71 [2020-10-12 13:59:49,879 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 77 [2020-10-12 13:59:50,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:50,328 INFO L93 Difference]: Finished difference Result 11178 states and 12174 transitions. [2020-10-12 13:59:50,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 13:59:50,329 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1450 [2020-10-12 13:59:50,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:50,336 INFO L225 Difference]: With dead ends: 11178 [2020-10-12 13:59:50,336 INFO L226 Difference]: Without dead ends: 5687 [2020-10-12 13:59:50,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=255, Invalid=615, Unknown=0, NotChecked=0, Total=870 [2020-10-12 13:59:50,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5687 states. [2020-10-12 13:59:50,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5687 to 5547. [2020-10-12 13:59:50,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5547 states. [2020-10-12 13:59:50,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5547 states to 5547 states and 6030 transitions. [2020-10-12 13:59:50,419 INFO L78 Accepts]: Start accepts. Automaton has 5547 states and 6030 transitions. Word has length 1450 [2020-10-12 13:59:50,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:50,421 INFO L479 AbstractCegarLoop]: Abstraction has 5547 states and 6030 transitions. [2020-10-12 13:59:50,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:59:50,421 INFO L276 IsEmpty]: Start isEmpty. Operand 5547 states and 6030 transitions. [2020-10-12 13:59:50,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1460 [2020-10-12 13:59:50,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:50,446 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:59:50,446 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-12 13:59:50,447 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:50,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:50,447 INFO L82 PathProgramCache]: Analyzing trace with hash 204833278, now seen corresponding path program 1 times [2020-10-12 13:59:50,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:50,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1446849953] [2020-10-12 13:59:50,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:50,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:51,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:53,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:53,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:55,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:55,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:55,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1489 [2020-10-12 13:59:55,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:59:55,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5088 [2020-10-12 13:59:55,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:55,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:59:55,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1262 [2020-10-12 13:59:55,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 13:59:55,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:56,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:56,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:56,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:56,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:56,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:56,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:59:56,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:56,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:56,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:56,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:56,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:56,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:56,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:56,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:56,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:56,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:56,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:59:56,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:56,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:56,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:56,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:56,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:56,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:56,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:56,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:56,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:59:56,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:56,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:59:56,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:56,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:56,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:56,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:56,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:56,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:59:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:56,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:56,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:56,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:59:56,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:56,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 13:59:56,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:56,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:56,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:56,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:56,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:56,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:59:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:56,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:56,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:56,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:59:56,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:56,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:59:56,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:56,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:56,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:56,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:56,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:56,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:59:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:56,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:56,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:56,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:59:56,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:56,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:59:56,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:56,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:56,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:59:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:56,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:56,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:56,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:59:56,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:56,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:59:56,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:56,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:56,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:59:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:56,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:56,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:56,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:59:56,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:56,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 13:59:56,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:56,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:56,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:56,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:56,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:56,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:59:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:56,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:56,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:56,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:59:56,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:56,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 13:59:56,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:56,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:56,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:59:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:56,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:56,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:56,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:59:56,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:56,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 13:59:56,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:56,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:56,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:56,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:56,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:56,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 13:59:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:56,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:56,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:56,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-12 13:59:56,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:56,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 13:59:56,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:56,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:56,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:56,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-12 13:59:56,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:56,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1242 [2020-10-12 13:59:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:56,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:56,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:57,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:57,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-12 13:59:57,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:59:57,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 446 [2020-10-12 13:59:57,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:57,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:59:57,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:57,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-12 13:59:57,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:57,600 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-10-12 13:59:57,797 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2020-10-12 13:59:58,012 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2020-10-12 13:59:58,258 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2020-10-12 13:59:58,513 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2020-10-12 14:00:03,638 INFO L134 CoverageAnalysis]: Checked inductivity of 6323 backedges. 1688 proven. 2 refuted. 0 times theorem prover too weak. 4633 trivial. 0 not checked. [2020-10-12 14:00:03,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1446849953] [2020-10-12 14:00:03,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:00:03,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:00:03,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527863367] [2020-10-12 14:00:03,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:00:03,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:03,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:00:03,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:00:03,642 INFO L87 Difference]: Start difference. First operand 5547 states and 6030 transitions. Second operand 13 states. [2020-10-12 14:00:04,273 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2020-10-12 14:00:04,901 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2020-10-12 14:00:05,168 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2020-10-12 14:00:05,381 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 58 [2020-10-12 14:00:05,686 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2020-10-12 14:00:06,083 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2020-10-12 14:00:06,641 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 61 [2020-10-12 14:00:07,073 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2020-10-12 14:00:07,544 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 51 [2020-10-12 14:00:08,023 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 42 [2020-10-12 14:00:09,274 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2020-10-12 14:00:10,630 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 52 [2020-10-12 14:00:11,246 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 51 [2020-10-12 14:00:11,762 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 55 [2020-10-12 14:00:12,295 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2020-10-12 14:00:12,970 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 57 [2020-10-12 14:00:13,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:13,236 INFO L93 Difference]: Finished difference Result 10908 states and 11872 transitions. [2020-10-12 14:00:13,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:00:13,237 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1459 [2020-10-12 14:00:13,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:13,249 INFO L225 Difference]: With dead ends: 10908 [2020-10-12 14:00:13,250 INFO L226 Difference]: Without dead ends: 5534 [2020-10-12 14:00:13,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=268, Invalid=662, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:00:13,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5534 states. [2020-10-12 14:00:13,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5534 to 5532. [2020-10-12 14:00:13,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5532 states. [2020-10-12 14:00:13,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5532 states to 5532 states and 5970 transitions. [2020-10-12 14:00:13,363 INFO L78 Accepts]: Start accepts. Automaton has 5532 states and 5970 transitions. Word has length 1459 [2020-10-12 14:00:13,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:13,364 INFO L479 AbstractCegarLoop]: Abstraction has 5532 states and 5970 transitions. [2020-10-12 14:00:13,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:00:13,364 INFO L276 IsEmpty]: Start isEmpty. Operand 5532 states and 5970 transitions. [2020-10-12 14:00:13,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1508 [2020-10-12 14:00:13,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:13,391 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:13,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-12 14:00:13,391 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:13,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:13,392 INFO L82 PathProgramCache]: Analyzing trace with hash -229622946, now seen corresponding path program 1 times [2020-10-12 14:00:13,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:13,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299900878] [2020-10-12 14:00:13,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:13,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:14,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:15,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:18,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:18,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1537 [2020-10-12 14:00:18,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:00:18,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5091 [2020-10-12 14:00:18,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:18,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:18,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1310 [2020-10-12 14:00:18,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-12 14:00:18,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:19,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:00:19,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:19,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:00:19,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:00:19,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:00:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:00:19,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:00:19,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:00:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:00:19,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:00:19,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:00:19,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:00:19,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:00:19,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:00:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:00:19,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 14:00:19,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:00:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:00:19,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:00:19,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:00:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:00:19,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:00:19,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:00:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:00:19,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:00:19,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:00:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:00:19,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 14:00:19,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:00:19,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-12 14:00:19,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-12 14:00:19,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:19,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-12 14:00:19,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1290 [2020-10-12 14:00:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:20,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:20,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:20,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-12 14:00:20,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:00:20,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-10-12 14:00:20,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:20,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:20,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:20,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-12 14:00:20,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:22,793 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 1736 proven. 2 refuted. 0 times theorem prover too weak. 4742 trivial. 0 not checked. [2020-10-12 14:00:22,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1299900878] [2020-10-12 14:00:22,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:00:22,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 14:00:22,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145257095] [2020-10-12 14:00:22,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 14:00:22,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:22,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 14:00:22,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:00:22,797 INFO L87 Difference]: Start difference. First operand 5532 states and 5970 transitions. Second operand 6 states. [2020-10-12 14:00:24,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:24,616 INFO L93 Difference]: Finished difference Result 10739 states and 11598 transitions. [2020-10-12 14:00:24,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 14:00:24,617 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1507 [2020-10-12 14:00:24,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:24,626 INFO L225 Difference]: With dead ends: 10739 [2020-10-12 14:00:24,627 INFO L226 Difference]: Without dead ends: 5371 [2020-10-12 14:00:24,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:00:24,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5371 states. [2020-10-12 14:00:24,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5371 to 5348. [2020-10-12 14:00:24,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5348 states. [2020-10-12 14:00:24,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5348 states to 5348 states and 5734 transitions. [2020-10-12 14:00:24,704 INFO L78 Accepts]: Start accepts. Automaton has 5348 states and 5734 transitions. Word has length 1507 [2020-10-12 14:00:24,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:24,705 INFO L479 AbstractCegarLoop]: Abstraction has 5348 states and 5734 transitions. [2020-10-12 14:00:24,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 14:00:24,706 INFO L276 IsEmpty]: Start isEmpty. Operand 5348 states and 5734 transitions. [2020-10-12 14:00:24,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1513 [2020-10-12 14:00:24,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:24,733 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:24,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-12 14:00:24,734 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:24,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:24,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1191661807, now seen corresponding path program 1 times [2020-10-12 14:00:24,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:24,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852246462] [2020-10-12 14:00:24,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:25,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:25,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking...