/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_spec1_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:58:46,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:58:46,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:58:46,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:58:46,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:58:46,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:58:46,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:58:46,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:58:46,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:58:46,316 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:58:46,317 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:58:46,318 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:58:46,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:58:46,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:58:46,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:58:46,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:58:46,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:58:46,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:58:46,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:58:46,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:58:46,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:58:46,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:58:46,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:58:46,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:58:46,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:58:46,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:58:46,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:58:46,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:58:46,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:58:46,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:58:46,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:58:46,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:58:46,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:58:46,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:58:46,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:58:46,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:58:46,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:58:46,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:58:46,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:58:46,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:58:46,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:58:46,381 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 11:58:46,431 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:58:46,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:58:46,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:58:46,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:58:46,434 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:58:46,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:58:46,435 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:58:46,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:58:46,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:58:46,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:58:46,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:58:46,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:58:46,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:58:46,438 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:58:46,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:58:46,438 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:58:46,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:58:46,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:58:46,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:58:46,439 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:58:46,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:58:46,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:58:46,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:58:46,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:58:46,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:58:46,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:58:46,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:58:46,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:58:46,441 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:58:46,441 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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 11:58:46,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:58:46,896 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:58:46,901 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:58:46,902 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:58:46,903 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:58:46,904 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c [2020-09-25 11:58:46,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/945f38a82/22245f9d39174107b41c13723815c626/FLAGb19731e2e [2020-09-25 11:58:47,633 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:58:47,634 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c [2020-09-25 11:58:47,651 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/945f38a82/22245f9d39174107b41c13723815c626/FLAGb19731e2e [2020-09-25 11:58:47,901 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/945f38a82/22245f9d39174107b41c13723815c626 [2020-09-25 11:58:47,914 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:58:47,919 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:58:47,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:58:47,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:58:47,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:58:47,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:58:47" (1/1) ... [2020-09-25 11:58:47,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ebe5ffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:47, skipping insertion in model container [2020-09-25 11:58:47,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:58:47" (1/1) ... [2020-09-25 11:58:47,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:58:48,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:58:48,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:58:48,551 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:58:48,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:58:48,677 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:58:48,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:48 WrapperNode [2020-09-25 11:58:48,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:58:48,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:58:48,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:58:48,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:58:48,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:48" (1/1) ... [2020-09-25 11:58:48,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:48" (1/1) ... [2020-09-25 11:58:48,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:48" (1/1) ... [2020-09-25 11:58:48,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:48" (1/1) ... [2020-09-25 11:58:48,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:48" (1/1) ... [2020-09-25 11:58:48,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:48" (1/1) ... [2020-09-25 11:58:48,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:48" (1/1) ... [2020-09-25 11:58:48,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:58:48,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:58:48,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:58:48,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:58:48,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:48" (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 11:58:48,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:58:48,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:58:48,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 11:58:48,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 11:58:48,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 11:58:48,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 11:58:48,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 11:58:48,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 11:58:48,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 11:58:48,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 11:58:48,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 11:58:48,892 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 11:58:48,892 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 11:58:48,893 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 11:58:48,893 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 11:58:48,894 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:58:48,894 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 11:58:48,894 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 11:58:48,894 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 11:58:48,895 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 11:58:48,895 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 11:58:48,895 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 11:58:48,896 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 11:58:48,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 11:58:48,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 11:58:48,897 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 11:58:48,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 11:58:48,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 11:58:48,897 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 11:58:48,897 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 11:58:48,898 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 11:58:48,898 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 11:58:48,898 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 11:58:48,898 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 11:58:48,898 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 11:58:48,898 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 11:58:48,898 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 11:58:48,899 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 11:58:48,899 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 11:58:48,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 11:58:48,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 11:58:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:58:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:58:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 11:58:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 11:58:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 11:58:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 11:58:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 11:58:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 11:58:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 11:58:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 11:58:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 11:58:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 11:58:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 11:58:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 11:58:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 11:58:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 11:58:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 11:58:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 11:58:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 11:58:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 11:58:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 11:58:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 11:58:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 11:58:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 11:58:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 11:58:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 11:58:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 11:58:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 11:58:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 11:58:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 11:58:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 11:58:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 11:58:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 11:58:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 11:58:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 11:58:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 11:58:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:58:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 11:58:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 11:58:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 11:58:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 11:58:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 11:58:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 11:58:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 11:58:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 11:58:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 11:58:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 11:58:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 11:58:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 11:58:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 11:58:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 11:58:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 11:58:48,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:58:48,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 11:58:48,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:58:50,158 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:58:50,158 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 11:58:50,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:58:50 BoogieIcfgContainer [2020-09-25 11:58:50,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:58:50,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:58:50,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:58:50,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:58:50,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:58:47" (1/3) ... [2020-09-25 11:58:50,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae977fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:58:50, skipping insertion in model container [2020-09-25 11:58:50,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:48" (2/3) ... [2020-09-25 11:58:50,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae977fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:58:50, skipping insertion in model container [2020-09-25 11:58:50,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:58:50" (3/3) ... [2020-09-25 11:58:50,176 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product53.cil.c [2020-09-25 11:58:50,189 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:58:50,200 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:58:50,223 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:58:50,254 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:58:50,254 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:58:50,254 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:58:50,254 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:58:50,254 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:58:50,255 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:58:50,256 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:58:50,256 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:58:50,287 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states. [2020-09-25 11:58:50,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 11:58:50,306 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:58:50,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:58:50,308 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:58:50,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:58:50,316 INFO L82 PathProgramCache]: Analyzing trace with hash 317689357, now seen corresponding path program 1 times [2020-09-25 11:58:50,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:58:50,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1728597177] [2020-09-25 11:58:50,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:58:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:50,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:51,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:51,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:52,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:52,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:55,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:55,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 11:58:55,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:58:55,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-25 11:58:55,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:55,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:55,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 11:58:55,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 11:58:55,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 11:58:55,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 11:58:56,182 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:58:56,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:58:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:56,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:56,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:56,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:58:56,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:56,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-09-25 11:58:56,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:56,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:56,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:56,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:56,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 11:58:56,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:56,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:58:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:56,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:56,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:56,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:58:56,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:56,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:58:56,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:56,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:56,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:56,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:56,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:58:56,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:56,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:58:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:56,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:56,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:56,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:58:56,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:56,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:58:56,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:56,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:56,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:56,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:56,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:58:56,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:56,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:58:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:56,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:56,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:56,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:58:56,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:56,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:58:56,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:56,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:56,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:56,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:56,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:58:56,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:56,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:58:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:56,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:56,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:56,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:58:56,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:56,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:58:56,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:56,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:56,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:56,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:56,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:58:56,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:56,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:58:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:56,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:56,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:56,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:58:56,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:56,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:58:56,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:56,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:56,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:58:56,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:56,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:58:56,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:56,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 11:58:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:56,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:56,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:56,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:58:56,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:56,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:58:56,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:56,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:56,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:56,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:58:56,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:56,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:56,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:58:56,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1728597177] [2020-09-25 11:58:56,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:58:56,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 11:58:56,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337595913] [2020-09-25 11:58:56,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 11:58:56,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:58:56,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 11:58:56,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:58:56,939 INFO L87 Difference]: Start difference. First operand 332 states. Second operand 8 states. [2020-09-25 11:58:57,526 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:58:58,486 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:58:58,788 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:58:59,107 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:58:59,464 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:58:59,789 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:00,543 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:59:00,891 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:01,472 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:59:03,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:59:03,406 INFO L93 Difference]: Finished difference Result 724 states and 881 transitions. [2020-09-25 11:59:03,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 11:59:03,409 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 11:59:03,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:59:03,434 INFO L225 Difference]: With dead ends: 724 [2020-09-25 11:59:03,434 INFO L226 Difference]: Without dead ends: 486 [2020-09-25 11:59:03,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 11:59:03,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-09-25 11:59:03,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 427. [2020-09-25 11:59:03,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-09-25 11:59:03,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 477 transitions. [2020-09-25 11:59:03,592 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 477 transitions. Word has length 142 [2020-09-25 11:59:03,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:59:03,593 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 477 transitions. [2020-09-25 11:59:03,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 11:59:03,593 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 477 transitions. [2020-09-25 11:59:03,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-25 11:59:03,600 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:59:03,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:03,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:59:03,601 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:59:03,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:59:03,602 INFO L82 PathProgramCache]: Analyzing trace with hash 886032922, now seen corresponding path program 1 times [2020-09-25 11:59:03,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:59:03,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [378589106] [2020-09-25 11:59:03,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:59:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:03,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:03,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:04,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:07,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:07,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-25 11:59:07,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:59:07,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3647 [2020-09-25 11:59:07,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:07,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:07,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:07,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 11:59:07,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 11:59:07,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:07,645 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:59:07,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:59:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:07,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:07,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:07,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:59:07,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:07,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-09-25 11:59:07,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:07,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:07,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:07,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:07,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 11:59:07,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:08,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:59:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:08,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:08,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:08,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:08,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:08,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:08,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:08,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:08,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:08,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:08,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:08,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:08,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:59:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:08,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:08,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:08,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:08,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:08,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:08,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:08,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:08,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:08,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:08,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:08,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:08,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:59:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:08,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:08,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:08,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:08,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:08,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:59:08,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:08,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:08,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:08,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:08,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:08,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:08,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:59:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:08,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:08,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:08,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:08,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:08,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:08,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:08,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:08,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:08,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:08,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:08,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:08,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:59:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:08,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:08,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:08,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:59:08,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:08,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:59:08,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:08,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:08,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:08,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:08,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:59:08,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:08,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 11:59:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:08,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:08,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:08,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:08,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:08,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:08,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:08,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:08,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:08,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:59:08,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:08,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:08,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 11:59:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:08,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:08,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:08,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:08,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:08,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:08,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:08,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:08,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:08,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:59:08,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:08,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:08,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:59:08,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [378589106] [2020-09-25 11:59:08,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:59:08,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 11:59:08,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210995481] [2020-09-25 11:59:08,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:59:08,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:59:08,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:59:08,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:59:08,126 INFO L87 Difference]: Start difference. First operand 427 states and 477 transitions. Second operand 5 states. [2020-09-25 11:59:08,676 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:59:09,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:59:09,928 INFO L93 Difference]: Finished difference Result 822 states and 963 transitions. [2020-09-25 11:59:09,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 11:59:09,929 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-09-25 11:59:09,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:59:09,936 INFO L225 Difference]: With dead ends: 822 [2020-09-25 11:59:09,936 INFO L226 Difference]: Without dead ends: 505 [2020-09-25 11:59:09,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:59:09,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2020-09-25 11:59:10,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 427. [2020-09-25 11:59:10,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-09-25 11:59:10,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 475 transitions. [2020-09-25 11:59:10,013 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 475 transitions. Word has length 157 [2020-09-25 11:59:10,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:59:10,014 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 475 transitions. [2020-09-25 11:59:10,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:59:10,014 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 475 transitions. [2020-09-25 11:59:10,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 11:59:10,018 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:59:10,019 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:10,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:59:10,019 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:59:10,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:59:10,020 INFO L82 PathProgramCache]: Analyzing trace with hash 28442387, now seen corresponding path program 1 times [2020-09-25 11:59:10,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:59:10,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [244713509] [2020-09-25 11:59:10,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:59:10,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:10,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:10,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:10,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:10,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:13,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:13,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:14,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:14,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:15,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:15,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-25 11:59:15,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 11:59:15,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-09-25 11:59:15,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:15,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:15,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 11:59:15,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 11:59:15,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-25 11:59:15,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 11:59:15,513 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:59:15,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:59:15,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:15,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:15,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:15,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:59:15,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:15,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-25 11:59:15,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:15,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:15,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:15,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:15,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 11:59:15,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:15,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:59:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:15,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:15,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:15,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:15,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:15,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:15,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:15,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:15,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:15,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:15,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:15,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:15,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:59:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:15,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:15,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:15,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:15,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:15,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:15,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:15,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:15,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:15,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:15,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:15,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:15,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:59:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:15,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:15,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:15,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:15,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:15,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:59:15,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:15,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:15,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:15,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:15,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:15,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:15,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:59:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:15,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:15,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:15,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:15,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:15,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:15,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:15,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:15,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:15,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:15,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:15,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:15,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:59:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:15,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:15,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:15,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:59:15,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:15,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:59:15,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:15,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:59:15,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:15,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 11:59:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:15,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:15,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:15,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:15,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:15,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:15,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:15,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:15,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 11:59:15,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 11:59:15,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 11:59:15,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:15,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:15,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:59:15,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:59:15,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 11:59:15,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:15,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:59:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:15,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:15,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:15,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:15,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 11:59:15,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:59:15,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 11:59:15,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:15,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:59:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:59:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:59:15,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:15,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:59:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:15,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:15,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:15,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:59:15,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:15,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:59:15,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:15,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:15,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:59:15,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:59:15,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:59:15,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:16,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:59:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:16,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:16,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:16,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:16,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:16,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:16,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:16,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:16,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:16,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:16,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:16,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:16,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 11:59:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:16,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:16,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:16,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:16,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:16,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:59:16,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:16,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:16,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:16,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:16,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:16,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:16,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 11:59:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:16,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:16,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:16,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:16,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:16,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:59:16,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:16,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:16,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:59:16,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:16,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:16,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:16,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:59:16,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [244713509] [2020-09-25 11:59:16,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:59:16,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 11:59:16,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549246410] [2020-09-25 11:59:16,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 11:59:16,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:59:16,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 11:59:16,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-25 11:59:16,183 INFO L87 Difference]: Start difference. First operand 427 states and 475 transitions. Second operand 12 states. [2020-09-25 11:59:16,709 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:59:18,445 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:59:18,741 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:59:19,080 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:59:19,386 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:19,718 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:59:20,133 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:59:20,483 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:59:20,831 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:59:21,110 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:59:22,885 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:59:23,250 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:59:23,672 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:59:24,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:59:24,373 INFO L93 Difference]: Finished difference Result 1147 states and 1395 transitions. [2020-09-25 11:59:24,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 11:59:24,374 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 175 [2020-09-25 11:59:24,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:59:24,383 INFO L225 Difference]: With dead ends: 1147 [2020-09-25 11:59:24,384 INFO L226 Difference]: Without dead ends: 830 [2020-09-25 11:59:24,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 27 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=235, Invalid=757, Unknown=0, NotChecked=0, Total=992 [2020-09-25 11:59:24,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2020-09-25 11:59:24,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 650. [2020-09-25 11:59:24,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2020-09-25 11:59:24,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 720 transitions. [2020-09-25 11:59:24,488 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 720 transitions. Word has length 175 [2020-09-25 11:59:24,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:59:24,489 INFO L479 AbstractCegarLoop]: Abstraction has 650 states and 720 transitions. [2020-09-25 11:59:24,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 11:59:24,489 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 720 transitions. [2020-09-25 11:59:24,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 11:59:24,492 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:59:24,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:24,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:59:24,493 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:59:24,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:59:24,494 INFO L82 PathProgramCache]: Analyzing trace with hash 693896814, now seen corresponding path program 1 times [2020-09-25 11:59:24,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:59:24,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [201976585] [2020-09-25 11:59:24,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:59:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:24,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:25,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:25,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-25 11:59:25,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:25,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 854 [2020-09-25 11:59:25,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:25,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:25,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:59:25,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-09-25 11:59:25,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:59:25,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:25,684 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:59:25,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:59:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:25,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:25,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:25,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:59:25,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:25,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 11:59:25,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:25,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:25,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:25,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:25,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:25,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:25,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:59:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:25,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:25,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:25,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:25,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:25,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:59:25,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:25,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:25,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:25,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:25,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:25,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:59:25,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:25,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:25,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:25,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:25,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:25,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:59:25,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:25,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:25,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:25,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:25,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:25,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:25,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:59:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:25,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:25,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:25,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:25,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:25,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:25,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:25,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:25,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:25,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:25,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:25,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:25,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:59:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:25,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:25,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:25,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:25,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:25,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:59:25,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:25,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:25,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:25,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:25,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:25,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:25,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:59:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:25,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:25,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:25,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:59:25,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:25,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:25,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:25,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:25,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:25,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:25,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:25,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:25,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 11:59:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:25,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:25,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:25,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 11:59:25,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:25,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 11:59:25,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:25,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:25,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:59:25,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 11:59:25,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:59:25,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:25,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:59:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:25,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 11:59:26,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 11:59:26,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:59:26,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 11:59:26,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:59:26,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:26,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:59:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 11:59:26,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 11:59:26,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:59:26,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 11:59:26,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:59:26,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:26,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:59:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:59:26,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 11:59:26,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:59:26,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:26,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 11:59:26,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:26,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:59:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:59:26,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:59:26,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:26,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:26,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:26,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:26,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 11:59:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:59:26,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:26,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:26,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 11:59:26,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:26,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:26,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 11:59:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:26,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:26,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:26,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:59:26,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:26,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:26,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 11:59:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:26,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:59:26,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:26,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:59:26,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:26,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:26,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:59:26,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [201976585] [2020-09-25 11:59:26,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:59:26,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 11:59:26,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061615124] [2020-09-25 11:59:26,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 11:59:26,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:59:26,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 11:59:26,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:59:26,259 INFO L87 Difference]: Start difference. First operand 650 states and 720 transitions. Second operand 10 states. [2020-09-25 11:59:27,586 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:27,931 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 11:59:28,290 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 11:59:28,607 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:59:28,910 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:59:29,205 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:59:30,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:59:30,931 INFO L93 Difference]: Finished difference Result 1367 states and 1603 transitions. [2020-09-25 11:59:30,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 11:59:30,932 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 200 [2020-09-25 11:59:30,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:59:30,938 INFO L225 Difference]: With dead ends: 1367 [2020-09-25 11:59:30,938 INFO L226 Difference]: Without dead ends: 827 [2020-09-25 11:59:30,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 11:59:30,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2020-09-25 11:59:31,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 666. [2020-09-25 11:59:31,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 666 states. [2020-09-25 11:59:31,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 736 transitions. [2020-09-25 11:59:31,047 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 736 transitions. Word has length 200 [2020-09-25 11:59:31,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:59:31,048 INFO L479 AbstractCegarLoop]: Abstraction has 666 states and 736 transitions. [2020-09-25 11:59:31,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 11:59:31,049 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 736 transitions. [2020-09-25 11:59:31,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 11:59:31,052 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:59:31,053 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:31,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:59:31,053 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:59:31,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:59:31,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1107528206, now seen corresponding path program 1 times [2020-09-25 11:59:31,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:59:31,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1615721663] [2020-09-25 11:59:31,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:59:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:31,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:31,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:31,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-25 11:59:31,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:31,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 705 [2020-09-25 11:59:31,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:31,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:31,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:59:31,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-09-25 11:59:31,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:59:31,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,171 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:59:32,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:59:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:59:32,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 11:59:32,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:32,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:32,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:32,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:59:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:32,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:32,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:32,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:32,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:32,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:59:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:32,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:32,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:32,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:32,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:32,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:59:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:32,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:32,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:32,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:32,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:32,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:59:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:32,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:32,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:32,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:32,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:32,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:59:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:59:32,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:32,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:32,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:32,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:32,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 11:59:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 11:59:32,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 11:59:32,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:59:32,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 11:59:32,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:59:32,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:59:32,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 11:59:32,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 11:59:32,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:59:32,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 11:59:32,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:59:32,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:59:32,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 11:59:32,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 11:59:32,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:59:32,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 11:59:32,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:59:32,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:59:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:59:32,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 11:59:32,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:59:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:59:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:59:32,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:59:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:59:32,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:59:32,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:59:32,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:32,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:32,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 11:59:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:59:32,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:59:32,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:32,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 11:59:32,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:32,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:32,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 11:59:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:32,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:32,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:32,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:59:32,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:32,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:59:32,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 11:59:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:32,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:32,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:32,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:32,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:32,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:32,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:32,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:32,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:32,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:59:32,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:32,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:59:32,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:59:32,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1615721663] [2020-09-25 11:59:32,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:59:32,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 11:59:32,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395258072] [2020-09-25 11:59:32,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 11:59:32,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:59:32,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 11:59:32,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 11:59:32,770 INFO L87 Difference]: Start difference. First operand 666 states and 736 transitions. Second operand 9 states. [2020-09-25 11:59:33,977 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:34,290 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:59:34,597 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:59:34,907 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:59:35,210 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:59:37,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:59:37,016 INFO L93 Difference]: Finished difference Result 1405 states and 1664 transitions. [2020-09-25 11:59:37,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 11:59:37,016 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 200 [2020-09-25 11:59:37,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:59:37,021 INFO L225 Difference]: With dead ends: 1405 [2020-09-25 11:59:37,022 INFO L226 Difference]: Without dead ends: 849 [2020-09-25 11:59:37,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 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 11:59:37,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2020-09-25 11:59:37,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 678. [2020-09-25 11:59:37,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 678 states. [2020-09-25 11:59:37,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 748 transitions. [2020-09-25 11:59:37,104 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 748 transitions. Word has length 200 [2020-09-25 11:59:37,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:59:37,104 INFO L479 AbstractCegarLoop]: Abstraction has 678 states and 748 transitions. [2020-09-25 11:59:37,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 11:59:37,105 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 748 transitions. [2020-09-25 11:59:37,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 11:59:37,108 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:59:37,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:37,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 11:59:37,108 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:59:37,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:59:37,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1038010097, now seen corresponding path program 1 times [2020-09-25 11:59:37,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:59:37,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594858675] [2020-09-25 11:59:37,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:59:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:37,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking...