/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 SingleStatement --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:41:16,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:41:16,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:41:16,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:41:16,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:41:16,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:41:16,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:41:16,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:41:16,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:41:16,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:41:16,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:41:16,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:41:16,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:41:16,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:41:16,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:41:16,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:41:16,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:41:16,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:41:16,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:41:16,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:41:16,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:41:16,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:41:16,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:41:16,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:41:16,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:41:16,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:41:16,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:41:16,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:41:16,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:41:16,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:41:16,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:41:16,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:41:16,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:41:16,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:41:16,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:41:16,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:41:16,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:41:16,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:41:16,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:41:16,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:41:16,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:41:16,912 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:41:16,957 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:41:16,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:41:16,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:41:16,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:41:16,960 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:41:16,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:41:16,961 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:41:16,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:41:16,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:41:16,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:41:16,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:41:16,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:41:16,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:41:16,963 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:41:16,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:41:16,963 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:41:16,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:41:16,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:41:16,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:41:16,964 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:41:16,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:41:16,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:41:16,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:41:16,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:41:16,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:41:16,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:41:16,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:41:16,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:41:16,966 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:41:16,966 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 -> SingleStatement 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=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:41:17,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:41:17,418 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:41:17,422 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:41:17,423 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:41:17,423 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:41:17,425 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product63.cil.c [2020-09-25 07:41:17,517 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ab517724/ee6bc2179ea04d198826b8a3b9e0286c/FLAG2ea4995b0 [2020-09-25 07:41:18,108 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:41:18,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product63.cil.c [2020-09-25 07:41:18,124 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ab517724/ee6bc2179ea04d198826b8a3b9e0286c/FLAG2ea4995b0 [2020-09-25 07:41:18,385 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ab517724/ee6bc2179ea04d198826b8a3b9e0286c [2020-09-25 07:41:18,400 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:41:18,406 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:41:18,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:41:18,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:41:18,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:41:18,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:41:18" (1/1) ... [2020-09-25 07:41:18,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@777e9d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:18, skipping insertion in model container [2020-09-25 07:41:18,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:41:18" (1/1) ... [2020-09-25 07:41:18,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:41:18,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:41:19,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:41:19,018 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:41:19,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:41:19,188 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:41:19,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:19 WrapperNode [2020-09-25 07:41:19,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:41:19,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:41:19,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:41:19,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:41:19,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:19" (1/1) ... [2020-09-25 07:41:19,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:19" (1/1) ... [2020-09-25 07:41:19,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:19" (1/1) ... [2020-09-25 07:41:19,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:19" (1/1) ... [2020-09-25 07:41:19,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:19" (1/1) ... [2020-09-25 07:41:19,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:19" (1/1) ... [2020-09-25 07:41:19,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:19" (1/1) ... [2020-09-25 07:41:19,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:41:19,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:41:19,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:41:19,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:41:19,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:19" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:41:19,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:41:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:41:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:41:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 07:41:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 07:41:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 07:41:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:41:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:41:19,372 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:41:19,372 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:41:19,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:41:19,372 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:41:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:41:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:41:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:41:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:41:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:41:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:41:19,374 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:41:19,374 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:41:19,375 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:41:19,375 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:41:19,375 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 07:41:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:41:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:41:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:41:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:41:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:41:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:41:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 07:41:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:41:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:41:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:41:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:41:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:41:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:41:19,378 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:41:19,378 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:41:19,379 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 07:41:19,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:41:19,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:41:19,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:41:19,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:41:19,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:41:19,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:41:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:41:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:41:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:41:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:41:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:41:19,381 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:41:19,381 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 07:41:19,381 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 07:41:19,381 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 07:41:19,381 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:41:19,381 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:41:19,381 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:41:19,381 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:41:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:41:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:41:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:41:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:41:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:41:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:41:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:41:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:41:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:41:19,383 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:41:19,383 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:41:19,383 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:41:19,383 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:41:19,383 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:41:19,383 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:41:19,383 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 07:41:19,384 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:41:19,384 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:41:19,384 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:41:19,384 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:41:19,384 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:41:19,384 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:41:19,385 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 07:41:19,385 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:41:19,385 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:41:19,385 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 07:41:19,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:41:19,385 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:41:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:41:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:41:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:41:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:41:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:41:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:41:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:41:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:41:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:41:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:41:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:41:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:41:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:41:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:41:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:41:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:41:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:41:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:41:20,482 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:41:20,482 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:41:20,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:41:20 BoogieIcfgContainer [2020-09-25 07:41:20,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:41:20,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:41:20,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:41:20,495 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:41:20,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:41:18" (1/3) ... [2020-09-25 07:41:20,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399ecbdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:41:20, skipping insertion in model container [2020-09-25 07:41:20,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:19" (2/3) ... [2020-09-25 07:41:20,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399ecbdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:41:20, skipping insertion in model container [2020-09-25 07:41:20,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:41:20" (3/3) ... [2020-09-25 07:41:20,500 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product63.cil.c [2020-09-25 07:41:20,511 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:41:20,521 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:41:20,542 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:41:20,572 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:41:20,572 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:41:20,572 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:41:20,573 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:41:20,573 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:41:20,573 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:41:20,573 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:41:20,573 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:41:20,603 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states. [2020-09-25 07:41:20,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 07:41:20,623 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:41:20,625 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:41:20,626 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:41:20,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:41:20,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1341435663, now seen corresponding path program 1 times [2020-09-25 07:41:20,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:41:20,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2089123227] [2020-09-25 07:41:20,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:41:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:21,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:21,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:22,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:23,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:25,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:26,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:26,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 07:41:26,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:41:26,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-25 07:41:26,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:26,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:26,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:26,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 07:41:26,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:26,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:41:26,418 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:41:26,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:26,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:26,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:26,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:41:26,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:26,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 07:41:26,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:26,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:26,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:26,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:26,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:26,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:26,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:41:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:26,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:26,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:26,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:26,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:26,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:26,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:26,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:26,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:26,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:26,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:26,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:26,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:41:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:26,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:26,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:26,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:26,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:26,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:26,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:26,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:26,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:26,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:26,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:26,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:26,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:41:26,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:26,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:26,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:26,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:26,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:26,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:41:26,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:26,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:26,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:26,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:26,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:26,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:26,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:41:26,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:26,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:26,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:26,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:26,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:26,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:26,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:26,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:26,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:26,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:26,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:26,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:26,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:41:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:26,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:26,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:26,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:41:26,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:26,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:26,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:26,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:26,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:26,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:26,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:26,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:26,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:41:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:26,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:26,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:26,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:41:26,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:26,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:41:26,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:26,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:26,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:26,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:41:26,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:26,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:26,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:26,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:26,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:26,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:26,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:26,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:26,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:26,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:26,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:26,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:26,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:26,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:26,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 07:41:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:26,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:26,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:26,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:26,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:26,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:26,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:26,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:26,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:26,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:41:26,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:26,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:26,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 07:41:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:26,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:26,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:26,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:26,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:26,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:26,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:26,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:26,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:26,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:41:26,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:26,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:26,734 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:41:26,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2089123227] [2020-09-25 07:41:26,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:41:26,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:41:26,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756051539] [2020-09-25 07:41:26,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:41:26,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:41:26,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:41:26,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:41:26,766 INFO L87 Difference]: Start difference. First operand 365 states. Second operand 4 states. [2020-09-25 07:41:28,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:41:28,194 INFO L93 Difference]: Finished difference Result 594 states and 699 transitions. [2020-09-25 07:41:28,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:41:28,197 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 07:41:28,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:41:28,218 INFO L225 Difference]: With dead ends: 594 [2020-09-25 07:41:28,218 INFO L226 Difference]: Without dead ends: 365 [2020-09-25 07:41:28,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:41:28,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2020-09-25 07:41:28,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 314. [2020-09-25 07:41:28,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2020-09-25 07:41:28,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 346 transitions. [2020-09-25 07:41:28,341 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 346 transitions. Word has length 160 [2020-09-25 07:41:28,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:41:28,342 INFO L479 AbstractCegarLoop]: Abstraction has 314 states and 346 transitions. [2020-09-25 07:41:28,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:41:28,342 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 346 transitions. [2020-09-25 07:41:28,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 07:41:28,347 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:41:28,348 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:41:28,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:41:28,348 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:41:28,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:41:28,349 INFO L82 PathProgramCache]: Analyzing trace with hash 42418448, now seen corresponding path program 1 times [2020-09-25 07:41:28,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:41:28,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2070543136] [2020-09-25 07:41:28,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:41:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:28,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:28,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:29,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:30,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:31,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:33,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:33,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 07:41:33,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:41:33,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5083 [2020-09-25 07:41:33,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:33,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:33,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:33,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 07:41:33,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:41:33,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:33,878 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:41:33,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:33,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:34,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:34,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:41:34,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:34,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 07:41:34,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:34,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:34,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:34,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:34,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:34,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:34,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:41:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:34,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:34,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:34,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:34,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:34,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:34,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:34,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:34,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:34,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:34,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:34,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:41:34,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:41:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:34,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:34,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:34,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:34,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:34,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:34,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:34,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:34,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:34,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:34,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:34,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:34,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:41:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:34,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:34,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:34,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:34,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:34,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:41:34,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:34,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:34,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:34,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:34,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:34,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:34,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:41:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:34,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:34,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:34,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:34,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:34,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:34,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:34,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:34,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:34,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:34,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:34,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:41:34,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:41:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:34,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:34,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:34,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:41:34,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:34,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:41:34,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:34,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:34,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:34,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:34,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:34,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:34,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:41:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:34,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:34,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:34,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:41:34,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:34,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:41:34,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:34,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:34,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:34,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:41:34,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:34,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:34,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:34,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:34,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:34,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:34,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:34,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:34,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:34,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:34,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:34,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:34,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:34,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:34,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:34,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 07:41:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:34,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:34,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:34,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:34,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:34,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:34,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:34,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:34,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:34,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:41:34,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:34,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:34,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 07:41:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:34,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:34,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:34,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:34,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:34,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:34,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:34,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:34,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:34,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:41:34,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:34,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:34,190 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:41:34,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2070543136] [2020-09-25 07:41:34,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:41:34,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:41:34,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718207219] [2020-09-25 07:41:34,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:41:34,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:41:34,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:41:34,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:41:34,195 INFO L87 Difference]: Start difference. First operand 314 states and 346 transitions. Second operand 5 states. [2020-09-25 07:41:34,871 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:41:36,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:41:36,240 INFO L93 Difference]: Finished difference Result 517 states and 587 transitions. [2020-09-25 07:41:36,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:41:36,241 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 07:41:36,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:41:36,252 INFO L225 Difference]: With dead ends: 517 [2020-09-25 07:41:36,253 INFO L226 Difference]: Without dead ends: 354 [2020-09-25 07:41:36,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:41:36,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-09-25 07:41:36,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 304. [2020-09-25 07:41:36,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-09-25 07:41:36,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 333 transitions. [2020-09-25 07:41:36,306 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 333 transitions. Word has length 161 [2020-09-25 07:41:36,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:41:36,307 INFO L479 AbstractCegarLoop]: Abstraction has 304 states and 333 transitions. [2020-09-25 07:41:36,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:41:36,307 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 333 transitions. [2020-09-25 07:41:36,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 07:41:36,310 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:41:36,310 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:41:36,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:41:36,311 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:41:36,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:41:36,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1780582113, now seen corresponding path program 1 times [2020-09-25 07:41:36,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:41:36,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1843884386] [2020-09-25 07:41:36,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:41:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:36,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:36,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:37,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:38,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:41,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:41,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 07:41:41,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:41:41,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 07:41:41,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:41,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:41,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:41:41,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 07:41:41,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-25 07:41:41,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:41,732 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:41:41,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:41,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:41,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:42,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:42,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:41:42,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:42,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-09-25 07:41:42,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:42,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:42,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:42,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:42,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 07:41:42,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:42,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:41:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:42,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:42,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:42,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:42,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:42,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:41:42,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:42,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:42,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:42,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:42,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:41:42,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:41:42,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:41:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:42,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:42,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:42,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:42,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:42,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:41:42,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:42,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:42,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:42,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:42,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:41:42,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:42,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:41:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:42,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:42,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:42,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:42,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:42,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:41:42,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:42,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:42,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:42,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:42,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:41:42,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:42,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:41:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:42,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:42,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:42,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:42,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:42,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:41:42,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:42,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:42,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:42,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:42,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:41:42,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:42,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:41:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:42,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:42,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:42,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:41:42,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:42,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:41:42,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:42,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:42,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:42,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:42,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:41:42,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:42,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:41:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:42,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:42,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:42,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:41:42,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:42,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:41:42,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:42,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:42,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:42,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:42,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:41:42,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:42,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:42,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:42,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:42,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:42,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:42,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:41:42,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:42,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:42,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:42,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:42,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:42,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:42,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 07:41:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:42,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:42,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:42,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:42,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:42,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:42,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:42,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:42,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:42,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:41:42,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:42,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:42,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 07:41:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:42,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:42,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:42,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:42,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:42,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:42,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:42,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:42,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:42,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:41:42,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:42,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:42,303 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:41:42,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1843884386] [2020-09-25 07:41:42,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:41:42,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:41:42,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118126417] [2020-09-25 07:41:42,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:41:42,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:41:42,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:41:42,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:41:42,310 INFO L87 Difference]: Start difference. First operand 304 states and 333 transitions. Second operand 5 states. [2020-09-25 07:41:42,978 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:41:45,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:41:45,290 INFO L93 Difference]: Finished difference Result 744 states and 855 transitions. [2020-09-25 07:41:45,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:41:45,291 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-09-25 07:41:45,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:41:45,297 INFO L225 Difference]: With dead ends: 744 [2020-09-25 07:41:45,297 INFO L226 Difference]: Without dead ends: 555 [2020-09-25 07:41:45,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:41:45,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2020-09-25 07:41:45,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 487. [2020-09-25 07:41:45,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2020-09-25 07:41:45,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 546 transitions. [2020-09-25 07:41:45,375 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 546 transitions. Word has length 170 [2020-09-25 07:41:45,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:41:45,376 INFO L479 AbstractCegarLoop]: Abstraction has 487 states and 546 transitions. [2020-09-25 07:41:45,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:41:45,376 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 546 transitions. [2020-09-25 07:41:45,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 07:41:45,379 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:41:45,380 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:41:45,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:41:45,380 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:41:45,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:41:45,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1971675083, now seen corresponding path program 1 times [2020-09-25 07:41:45,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:41:45,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720178254] [2020-09-25 07:41:45,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:41:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:45,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:45,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:46,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:48,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:50,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:50,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 07:41:50,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:41:50,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 07:41:50,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:50,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:50,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:41:50,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 07:41:50,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 07:41:50,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:50,812 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:41:50,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:50,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:50,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:50,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:41:50,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:50,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 07:41:50,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:50,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:50,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:50,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:50,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:50,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:50,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:41:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:50,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:50,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:50,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:50,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:50,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:41:50,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:50,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:50,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:50,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:50,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:50,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:50,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:41:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:50,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:50,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:50,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:50,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:50,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:41:50,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:50,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:50,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:50,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:50,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:50,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:50,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:41:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:50,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:50,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:50,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:50,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:50,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:50,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:50,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:50,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:50,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:51,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:51,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:51,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:41:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:51,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:51,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:51,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:51,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:51,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:41:51,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:51,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:51,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:51,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:51,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:51,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:51,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:41:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:51,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:51,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:51,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:41:51,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:51,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:41:51,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:51,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:51,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:51,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:51,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:51,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:51,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 07:41:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:51,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:51,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:51,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:41:51,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:51,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:41:51,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:51,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:51,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:51,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:51,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:41:51,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:51,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 07:41:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:51,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:51,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:51,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:41:51,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:51,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:41:51,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:51,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:51,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:51,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:51,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:41:51,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:51,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:51,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:51,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:51,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:51,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:51,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:51,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:51,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:51,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:51,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:51,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:51,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:51,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 07:41:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:51,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:51,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:51,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:51,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:51,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:41:51,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:51,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:41:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:41:51,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:51,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-25 07:41:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:51,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:51,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:51,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:51,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:51,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:41:51,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:51,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:51,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:41:51,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:51,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:41:51,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:51,175 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 07:41:51,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720178254] [2020-09-25 07:41:51,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:41:51,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:41:51,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648915789] [2020-09-25 07:41:51,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:41:51,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:41:51,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:41:51,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:41:51,178 INFO L87 Difference]: Start difference. First operand 487 states and 546 transitions. Second operand 10 states. [2020-09-25 07:41:51,685 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:41:52,597 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:41:52,898 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:41:54,404 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:41:54,697 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:41:55,053 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:41:55,679 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:41:56,003 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 07:41:56,294 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 07:41:57,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:41:57,167 INFO L93 Difference]: Finished difference Result 1168 states and 1389 transitions. [2020-09-25 07:41:57,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 07:41:57,167 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2020-09-25 07:41:57,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:41:57,175 INFO L225 Difference]: With dead ends: 1168 [2020-09-25 07:41:57,175 INFO L226 Difference]: Without dead ends: 796 [2020-09-25 07:41:57,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 07:41:57,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2020-09-25 07:41:57,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 713. [2020-09-25 07:41:57,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2020-09-25 07:41:57,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 802 transitions. [2020-09-25 07:41:57,276 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 802 transitions. Word has length 179 [2020-09-25 07:41:57,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:41:57,277 INFO L479 AbstractCegarLoop]: Abstraction has 713 states and 802 transitions. [2020-09-25 07:41:57,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:41:57,277 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 802 transitions. [2020-09-25 07:41:57,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-25 07:41:57,281 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:41:57,281 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:41:57,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:41:57,281 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:41:57,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:41:57,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1476641155, now seen corresponding path program 1 times [2020-09-25 07:41:57,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:41:57,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [16465836] [2020-09-25 07:41:57,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:41:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:57,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:58,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:58,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-09-25 07:41:58,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:58,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 703 [2020-09-25 07:41:58,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:58,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:58,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:41:58,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 197 [2020-09-25 07:41:58,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:41:58,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:58,339 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:41:58,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:58,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:58,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:58,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:41:58,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:58,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 07:41:58,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:58,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:58,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:58,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:41:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:58,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:58,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:58,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:58,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:58,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:41:58,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:58,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:58,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:58,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:58,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:58,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:58,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:41:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:58,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:58,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:58,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:58,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:58,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:41:58,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:58,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:58,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:58,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:58,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:58,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:58,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:41:58,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:58,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:58,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:58,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:58,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:58,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:41:58,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:58,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:58,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:58,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:58,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:58,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:58,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:41:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:58,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:58,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:58,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:58,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:58,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:41:58,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:58,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:58,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:58,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:58,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:58,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:58,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:41:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:58,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:58,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:58,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:41:58,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:58,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:41:58,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:58,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:58,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:58,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:58,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:58,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:58,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:41:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:58,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:58,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:58,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:41:58,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:58,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:58,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:58,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:58,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:58,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:58,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:58,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:58,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:58,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:58,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:58,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:58,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:58,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:58,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:58,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:58,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:58,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:58,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:58,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:58,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 07:41:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:58,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:58,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:58,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:41:58,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:58,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 07:41:58,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:58,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:58,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:41:58,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 07:41:58,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:41:58,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:58,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:41:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:58,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:58,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:58,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 07:41:58,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:58,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 07:41:58,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:58,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:58,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:41:58,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 07:41:58,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:41:58,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:58,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:41:58,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:58,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:58,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:58,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 07:41:58,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:58,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 07:41:58,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:58,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:58,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:41:58,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:41:58,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:41:58,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:58,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:41:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:58,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:58,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:58,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:41:58,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:58,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 07:41:58,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:58,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:58,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:41:58,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:41:58,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:41:58,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:58,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:41:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:58,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:58,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:58,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:41:58,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:58,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:41:58,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:58,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:58,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:41:58,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:58,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:41:58,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:58,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:41:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:58,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:58,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:58,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 07:41:58,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:58,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 07:41:58,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:58,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:58,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:58,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 07:41:58,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:58,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:58,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:41:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:58,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:58,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:58,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 07:41:58,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:58,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:58,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:58,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:58,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:58,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:58,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:58,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:58,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:41:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:58,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:58,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:58,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:58,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:58,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:41:58,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:58,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:58,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:58,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:58,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:58,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:58,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 07:41:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:58,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:58,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:58,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:41:58,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:58,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:58,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:58,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:58,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:58,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:58,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:58,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:58,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-25 07:41:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:58,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:58,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:58,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:58,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:58,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:58,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:58,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:58,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:58,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:41:58,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:58,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:58,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-25 07:41:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:58,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:58,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:58,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:58,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:58,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:58,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:58,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:58,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:58,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:41:58,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:58,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:59,029 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:41:59,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [16465836] [2020-09-25 07:41:59,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:41:59,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:41:59,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458487225] [2020-09-25 07:41:59,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:41:59,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:41:59,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:41:59,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:41:59,032 INFO L87 Difference]: Start difference. First operand 713 states and 802 transitions. Second operand 9 states. [2020-09-25 07:42:00,391 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:42:00,726 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 07:42:01,072 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:42:01,402 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:42:01,636 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:42:02,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:42:02,882 INFO L93 Difference]: Finished difference Result 1429 states and 1692 transitions. [2020-09-25 07:42:02,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:42:02,883 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 235 [2020-09-25 07:42:02,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:42:02,888 INFO L225 Difference]: With dead ends: 1429 [2020-09-25 07:42:02,888 INFO L226 Difference]: Without dead ends: 831 [2020-09-25 07:42:02,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 07:42:02,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2020-09-25 07:42:02,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 728. [2020-09-25 07:42:02,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2020-09-25 07:42:02,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 818 transitions. [2020-09-25 07:42:02,983 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 818 transitions. Word has length 235 [2020-09-25 07:42:02,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:42:02,983 INFO L479 AbstractCegarLoop]: Abstraction has 728 states and 818 transitions. [2020-09-25 07:42:02,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:42:02,984 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 818 transitions. [2020-09-25 07:42:02,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-25 07:42:02,988 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:42:02,988 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:42:02,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:42:02,989 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:42:02,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:42:02,989 INFO L82 PathProgramCache]: Analyzing trace with hash -277522141, now seen corresponding path program 1 times [2020-09-25 07:42:02,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:42:02,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1567127715] [2020-09-25 07:42:02,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:42:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:03,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:03,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:03,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-09-25 07:42:03,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:03,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 821 [2020-09-25 07:42:03,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:03,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:03,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:42:03,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-09-25 07:42:03,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:42:03,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:42:04,139 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:42:04,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:42:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:04,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:04,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:04,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:42:04,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:04,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 07:42:04,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:04,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:04,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:42:04,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:42:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:04,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:04,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:04,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:42:04,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:04,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:42:04,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:04,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:04,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:04,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:04,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:04,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:04,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:42:04,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:04,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:04,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:04,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:42:04,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:04,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:42:04,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:04,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:04,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:04,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:04,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:04,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:42:04,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:42:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:04,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:04,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:04,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:42:04,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:04,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:42:04,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:04,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:04,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:04,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:04,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:04,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:04,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:42:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:04,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:04,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:04,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:42:04,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:04,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:42:04,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:04,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:04,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:04,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:04,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:04,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:42:04,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:42:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:04,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:04,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:04,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:42:04,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:04,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:42:04,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:04,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:04,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:04,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:04,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:04,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:04,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:42:04,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:04,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:04,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:04,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:42:04,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:04,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:42:04,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:04,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:04,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:04,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:04,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:04,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:04,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:42:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:04,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:04,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:04,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:42:04,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:04,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:42:04,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:04,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:04,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:04,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:04,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:04,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 07:42:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:04,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:04,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:04,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:42:04,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:04,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 07:42:04,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:04,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:04,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:42:04,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 07:42:04,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:42:04,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:42:04,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:42:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:04,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:04,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:04,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 07:42:04,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:04,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 07:42:04,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:04,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:04,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:42:04,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 07:42:04,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:42:04,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:42:04,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:42:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:04,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:04,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:04,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 07:42:04,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:04,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 07:42:04,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:04,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:04,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:42:04,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 07:42:04,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:42:04,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:42:04,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:42:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:04,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:04,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:04,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:42:04,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:04,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 07:42:04,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:04,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:04,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:42:04,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:04,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 07:42:04,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:42:04,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:42:04,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:04,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:04,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:04,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:42:04,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:04,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:42:04,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:04,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:04,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:04,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:04,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:04,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:04,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:42:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:04,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:04,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:04,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 07:42:04,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:04,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:42:04,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:04,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:04,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:04,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 07:42:04,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:04,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:04,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:42:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:04,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:04,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:04,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 07:42:04,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:04,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:42:04,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:04,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:04,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:04,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:04,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:04,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:04,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:42:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:04,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:04,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:04,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:42:04,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:04,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:42:04,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:04,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:04,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:04,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:04,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:04,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:04,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 07:42:04,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:04,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:04,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:04,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:42:04,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:04,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:42:04,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:04,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:04,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:04,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:04,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:04,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:04,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-25 07:42:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:04,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:04,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:04,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:42:04,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:04,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:42:04,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:04,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:04,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:04,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:42:04,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:04,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:42:04,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-25 07:42:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:04,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:04,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:04,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:42:04,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:04,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:42:04,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:04,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:04,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:04,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:42:04,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:04,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:42:04,821 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:42:04,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1567127715] [2020-09-25 07:42:04,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:42:04,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:42:04,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017232630] [2020-09-25 07:42:04,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:42:04,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:42:04,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:42:04,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:42:04,824 INFO L87 Difference]: Start difference. First operand 728 states and 818 transitions. Second operand 10 states. [2020-09-25 07:42:06,437 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:42:06,714 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:42:06,988 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 07:42:07,288 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190