/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_spec4_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:27:01,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:27:01,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:27:01,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:27:01,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:27:01,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:27:01,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:27:01,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:27:01,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:27:01,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:27:01,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:27:01,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:27:01,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:27:01,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:27:01,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:27:01,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:27:01,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:27:01,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:27:01,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:27:01,329 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:27:01,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:27:01,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:27:01,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:27:01,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:27:01,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:27:01,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:27:01,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:27:01,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:27:01,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:27:01,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:27:01,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:27:01,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:27:01,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:27:01,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:27:01,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:27:01,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:27:01,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:27:01,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:27:01,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:27:01,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:27:01,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:27:01,361 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 06:27:01,405 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:27:01,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:27:01,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:27:01,408 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:27:01,408 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:27:01,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:27:01,408 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:27:01,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:27:01,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:27:01,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:27:01,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:27:01,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:27:01,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:27:01,411 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:27:01,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:27:01,411 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:27:01,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:27:01,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:27:01,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:27:01,412 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:27:01,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:27:01,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:27:01,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:27:01,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:27:01,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:27:01,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:27:01,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:27:01,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:27:01,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:27:01,414 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:27:01,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:27:01,882 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:27:01,886 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:27:01,888 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:27:01,888 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:27:01,889 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-09-25 06:27:01,971 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a165e476f/fec403769eea48c686bfd9de171446f6/FLAGf43b83eae [2020-09-25 06:27:02,589 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:27:02,590 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-09-25 06:27:02,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a165e476f/fec403769eea48c686bfd9de171446f6/FLAGf43b83eae [2020-09-25 06:27:02,852 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a165e476f/fec403769eea48c686bfd9de171446f6 [2020-09-25 06:27:02,865 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:27:02,873 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:27:02,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:27:02,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:27:02,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:27:02,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:27:02" (1/1) ... [2020-09-25 06:27:02,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156a129e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:02, skipping insertion in model container [2020-09-25 06:27:02,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:27:02" (1/1) ... [2020-09-25 06:27:02,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:27:02,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:27:03,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:27:03,469 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:27:03,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:27:03,613 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:27:03,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:03 WrapperNode [2020-09-25 06:27:03,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:27:03,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:27:03,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:27:03,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:27:03,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:03" (1/1) ... [2020-09-25 06:27:03,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:03" (1/1) ... [2020-09-25 06:27:03,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:03" (1/1) ... [2020-09-25 06:27:03,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:03" (1/1) ... [2020-09-25 06:27:03,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:03" (1/1) ... [2020-09-25 06:27:03,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:03" (1/1) ... [2020-09-25 06:27:03,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:03" (1/1) ... [2020-09-25 06:27:03,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:27:03,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:27:03,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:27:03,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:27:03,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:03" (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 06:27:03,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:27:03,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:27:03,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:27:03,807 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:27:03,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 06:27:03,808 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:27:03,808 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:27:03,808 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:27:03,808 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:27:03,808 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:27:03,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:27:03,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:27:03,809 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:27:03,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:27:03,809 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 06:27:03,809 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:27:03,810 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:27:03,810 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:27:03,810 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:27:03,810 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:27:03,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:27:03,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:27:03,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:27:03,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:27:03,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:27:03,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:27:03,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:27:03,812 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:27:03,812 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:27:03,812 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:27:03,812 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:27:03,812 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:27:03,813 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:27:03,813 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:27:03,813 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:27:03,813 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:27:03,813 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:27:03,813 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:27:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:27:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:27:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:27:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:27:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:27:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 06:27:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:27:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:27:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:27:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:27:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:27:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:27:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 06:27:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:27:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:27:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:27:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:27:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:27:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:27:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:27:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:27:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:27:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:27:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:27:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:27:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:27:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:27:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:27:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:27:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:27:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:27:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:27:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:27:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:27:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:27:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:27:03,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:27:03,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:27:03,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:27:03,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:27:03,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:27:03,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:27:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:27:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:27:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:27:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:27:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:27:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:27:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:27:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:27:03,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:27:03,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:27:04,991 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:27:04,991 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:27:05,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:27:05 BoogieIcfgContainer [2020-09-25 06:27:05,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:27:05,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:27:05,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:27:05,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:27:05,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:27:02" (1/3) ... [2020-09-25 06:27:05,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c3ab3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:27:05, skipping insertion in model container [2020-09-25 06:27:05,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:03" (2/3) ... [2020-09-25 06:27:05,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c3ab3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:27:05, skipping insertion in model container [2020-09-25 06:27:05,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:27:05" (3/3) ... [2020-09-25 06:27:05,015 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2020-09-25 06:27:05,027 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:27:05,042 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:27:05,066 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:27:05,096 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:27:05,096 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:27:05,096 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:27:05,096 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:27:05,096 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:27:05,097 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:27:05,097 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:27:05,097 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:27:05,123 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states. [2020-09-25 06:27:05,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 06:27:05,142 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:27:05,144 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 06:27:05,144 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:27:05,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:27:05,152 INFO L82 PathProgramCache]: Analyzing trace with hash 808133404, now seen corresponding path program 1 times [2020-09-25 06:27:05,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:27:05,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477758260] [2020-09-25 06:27:05,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:27:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:05,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:05,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:07,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:08,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:10,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:10,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 06:27:10,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:27:10,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 06:27:10,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:10,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:10,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:10,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 06:27:10,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:10,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:27:11,053 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:27:11,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:27:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:11,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:11,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:11,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:27:11,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:11,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-25 06:27:11,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:11,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:11,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:11,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:11,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:11,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:11,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:27:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:11,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:11,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:11,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:11,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:11,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:11,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:11,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:11,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:11,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:27:11,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:27:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:11,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:11,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:11,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:11,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:11,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:11,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:11,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:11,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:11,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:11,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:11,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:27:11,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:27:11,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:11,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:11,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:11,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:11,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:11,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:27:11,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:11,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:11,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:11,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:11,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:11,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:11,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:27:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:11,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:11,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:11,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:11,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:11,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:11,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:11,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:11,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:11,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:11,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:11,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:27:11,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 06:27:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:11,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:11,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:11,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:11,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:11,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:27:11,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:11,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:11,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:11,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:11,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:11,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:27:11,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:27:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:11,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:11,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:11,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:11,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:11,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:27:11,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:11,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:11,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:11,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:11,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:11,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:27:11,408 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 06:27:11,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477758260] [2020-09-25 06:27:11,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:27:11,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:27:11,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946219414] [2020-09-25 06:27:11,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:27:11,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:27:11,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:27:11,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:27:11,455 INFO L87 Difference]: Start difference. First operand 287 states. Second operand 3 states. [2020-09-25 06:27:13,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:27:13,188 INFO L93 Difference]: Finished difference Result 439 states and 524 transitions. [2020-09-25 06:27:13,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:27:13,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 06:27:13,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:27:13,215 INFO L225 Difference]: With dead ends: 439 [2020-09-25 06:27:13,215 INFO L226 Difference]: Without dead ends: 277 [2020-09-25 06:27:13,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:27:13,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-25 06:27:13,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 236. [2020-09-25 06:27:13,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-09-25 06:27:13,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 255 transitions. [2020-09-25 06:27:13,414 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 255 transitions. Word has length 142 [2020-09-25 06:27:13,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:27:13,419 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 255 transitions. [2020-09-25 06:27:13,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:27:13,419 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 255 transitions. [2020-09-25 06:27:13,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 06:27:13,432 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:27:13,433 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] [2020-09-25 06:27:13,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:27:13,433 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:27:13,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:27:13,434 INFO L82 PathProgramCache]: Analyzing trace with hash 730102889, now seen corresponding path program 1 times [2020-09-25 06:27:13,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:27:13,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [905492576] [2020-09-25 06:27:13,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:27:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:13,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:13,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:15,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:15,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:17,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:18,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:18,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 06:27:18,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:27:18,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 06:27:18,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:18,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:18,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:27:18,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 06:27:18,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:27:18,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:19,045 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:27:19,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:27:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:19,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:19,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:19,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:27:19,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:19,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 06:27:19,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:19,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:19,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:19,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:19,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:19,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:19,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:27:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:19,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:19,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:19,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:19,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:19,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:27:19,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:19,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:19,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:19,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:19,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:19,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:19,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:27:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:19,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:19,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:19,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:19,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:19,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:27:19,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:19,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:19,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:19,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:19,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:19,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:19,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:27:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:19,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:19,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:19,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:19,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:19,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:19,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:19,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:19,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:19,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:19,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:19,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:19,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:27:19,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:19,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:19,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:19,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:19,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:19,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:27:19,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:19,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:19,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:19,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:19,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:19,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:19,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:27:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:19,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:19,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:19,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:19,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:19,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:19,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:19,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:19,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:19,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:19,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:19,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:19,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:27:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:19,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:19,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:19,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:19,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:19,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:19,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:19,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:19,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:19,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:19,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:19,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:19,264 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 06:27:19,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [905492576] [2020-09-25 06:27:19,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:27:19,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:27:19,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507589578] [2020-09-25 06:27:19,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:27:19,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:27:19,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:27:19,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:27:19,274 INFO L87 Difference]: Start difference. First operand 236 states and 255 transitions. Second operand 4 states. [2020-09-25 06:27:19,924 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:27:20,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:27:20,683 INFO L93 Difference]: Finished difference Result 347 states and 389 transitions. [2020-09-25 06:27:20,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:27:20,688 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 06:27:20,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:27:20,695 INFO L225 Difference]: With dead ends: 347 [2020-09-25 06:27:20,695 INFO L226 Difference]: Without dead ends: 260 [2020-09-25 06:27:20,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:27:20,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-09-25 06:27:20,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 226. [2020-09-25 06:27:20,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-25 06:27:20,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 242 transitions. [2020-09-25 06:27:20,761 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 242 transitions. Word has length 143 [2020-09-25 06:27:20,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:27:20,761 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 242 transitions. [2020-09-25 06:27:20,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:27:20,762 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 242 transitions. [2020-09-25 06:27:20,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 06:27:20,763 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:27:20,764 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] [2020-09-25 06:27:20,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:27:20,764 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:27:20,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:27:20,765 INFO L82 PathProgramCache]: Analyzing trace with hash 807408229, now seen corresponding path program 1 times [2020-09-25 06:27:20,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:27:20,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443248824] [2020-09-25 06:27:20,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:27:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:20,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:21,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:22,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:22,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:25,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:25,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 06:27:25,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:27:25,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 06:27:25,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:25,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:25,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:27:25,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 06:27:25,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 06:27:25,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:26,200 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:27:26,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:27:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:26,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:26,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:26,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:27:26,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:26,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-25 06:27:26,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:26,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:26,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:27:26,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:26,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 06:27:26,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:26,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:27:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:26,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:26,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:26,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:26,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:26,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:26,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:26,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:26,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:27:26,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:26,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:27:26,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:26,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:27:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:26,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:26,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:26,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:26,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:26,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:26,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:26,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:26,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:27:26,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:26,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:27:26,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:26,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:27:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:26,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:26,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:26,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:26,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:26,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:27:26,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:26,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:26,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:27:26,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:26,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:27:26,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:26,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:27:26,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:26,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:26,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:26,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:26,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:26,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:26,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:26,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:26,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:27:26,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:26,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:27:26,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:26,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:27:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:26,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:26,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:26,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:26,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:26,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:26,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:26,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:26,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:26,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:26,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:26,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:26,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 06:27:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:26,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:26,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:26,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:26,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:26,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:26,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:26,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:26,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:26,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:26,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:26,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:26,634 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 06:27:26,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443248824] [2020-09-25 06:27:26,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:27:26,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:27:26,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950787364] [2020-09-25 06:27:26,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:27:26,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:27:26,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:27:26,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:27:26,638 INFO L87 Difference]: Start difference. First operand 226 states and 242 transitions. Second operand 4 states. [2020-09-25 06:27:27,101 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:27:28,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:27:28,467 INFO L93 Difference]: Finished difference Result 502 states and 571 transitions. [2020-09-25 06:27:28,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:27:28,468 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2020-09-25 06:27:28,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:27:28,472 INFO L225 Difference]: With dead ends: 502 [2020-09-25 06:27:28,473 INFO L226 Difference]: Without dead ends: 386 [2020-09-25 06:27:28,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:27:28,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-09-25 06:27:28,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 330. [2020-09-25 06:27:28,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-09-25 06:27:28,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 361 transitions. [2020-09-25 06:27:28,533 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 361 transitions. Word has length 152 [2020-09-25 06:27:28,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:27:28,534 INFO L479 AbstractCegarLoop]: Abstraction has 330 states and 361 transitions. [2020-09-25 06:27:28,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:27:28,534 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 361 transitions. [2020-09-25 06:27:28,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 06:27:28,536 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:27:28,537 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] [2020-09-25 06:27:28,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:27:28,537 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:27:28,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:27:28,538 INFO L82 PathProgramCache]: Analyzing trace with hash -501763232, now seen corresponding path program 1 times [2020-09-25 06:27:28,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:27:28,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295684979] [2020-09-25 06:27:28,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:27:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:28,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:28,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:29,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:31,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:32,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:33,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:33,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 06:27:33,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:27:33,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 06:27:33,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:33,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:27:33,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 06:27:33,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:27:33,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:33,885 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:27:33,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:27:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:33,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:34,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:34,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:27:34,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:34,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 06:27:34,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:34,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:34,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:34,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:34,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:34,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:27:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:34,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:34,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:34,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:34,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:34,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:34,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:34,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:34,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:34,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:34,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:34,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:34,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:27:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:34,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:34,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:34,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:34,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:34,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:34,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:34,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:34,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:34,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:34,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:34,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:34,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:27:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:34,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:34,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:34,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:34,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:34,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:34,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:34,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:34,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:34,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:34,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:34,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:34,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:27:34,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:34,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:34,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:34,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:34,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:34,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:34,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:34,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:34,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:34,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:34,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:34,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:34,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 06:27:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:34,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:34,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:34,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:27:34,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:34,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:27:34,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:34,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:34,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:27:34,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:27:34,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:27:34,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:34,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:27:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:34,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:34,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:34,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:34,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:34,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:27:34,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:34,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:34,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:27:34,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:34,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:27:34,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:34,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 06:27:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:34,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:34,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:34,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:34,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:34,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:34,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:34,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:34,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:34,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:34,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:34,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:34,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 06:27:34,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:34,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:34,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:34,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:34,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:34,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:34,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:34,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:34,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:34,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:27:34,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:34,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:34,305 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 06:27:34,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295684979] [2020-09-25 06:27:34,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:27:34,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:27:34,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296911155] [2020-09-25 06:27:34,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:27:34,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:27:34,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:27:34,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:27:34,310 INFO L87 Difference]: Start difference. First operand 330 states and 361 transitions. Second operand 7 states. [2020-09-25 06:27:35,018 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:27:36,676 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:27:37,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:27:37,311 INFO L93 Difference]: Finished difference Result 838 states and 977 transitions. [2020-09-25 06:27:37,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:27:37,311 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2020-09-25 06:27:37,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:27:37,318 INFO L225 Difference]: With dead ends: 838 [2020-09-25 06:27:37,318 INFO L226 Difference]: Without dead ends: 618 [2020-09-25 06:27:37,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:27:37,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2020-09-25 06:27:37,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 525. [2020-09-25 06:27:37,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2020-09-25 06:27:37,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 578 transitions. [2020-09-25 06:27:37,404 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 578 transitions. Word has length 160 [2020-09-25 06:27:37,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:27:37,405 INFO L479 AbstractCegarLoop]: Abstraction has 525 states and 578 transitions. [2020-09-25 06:27:37,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:27:37,405 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 578 transitions. [2020-09-25 06:27:37,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 06:27:37,408 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:27:37,408 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] [2020-09-25 06:27:37,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:27:37,408 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:27:37,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:27:37,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1615445203, now seen corresponding path program 1 times [2020-09-25 06:27:37,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:27:37,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746483657] [2020-09-25 06:27:37,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:27:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:37,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:38,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:38,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:41,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:42,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:42,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 06:27:42,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:27:42,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 06:27:42,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:42,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:42,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:27:42,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 06:27:42,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:27:42,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:27:42,862 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:27:42,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:27:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:42,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:42,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:43,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:27:43,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:43,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 06:27:43,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:43,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:43,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:43,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:43,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:43,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:43,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:27:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:43,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:43,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:43,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:43,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:43,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:43,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:43,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:43,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:43,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:43,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:43,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:43,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:27:43,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:43,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:43,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:43,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:43,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:43,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:43,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:43,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:43,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:43,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:43,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:43,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:43,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:27:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:43,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:43,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:43,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:43,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:43,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:27:43,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:43,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:43,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:43,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:43,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:43,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:43,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:27:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:43,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:43,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:43,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:27:43,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:43,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:27:43,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:43,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:43,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:27:43,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:43,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:27:43,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:43,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 06:27:43,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:43,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:43,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:43,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:27:43,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:43,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:27:43,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:43,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:43,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:27:43,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:43,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:27:43,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:43,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 06:27:43,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:43,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:43,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:43,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:43,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:43,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:27:43,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:43,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:43,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:27:43,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:43,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:27:43,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:27:43,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 06:27:43,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:27:43,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:27:43,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:27:43,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:27:43,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:27:43,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:27:43,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:27:43,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:27:43,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:27:43,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:27:43,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:27:43,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:27:43,235 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 06:27:43,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746483657] [2020-09-25 06:27:43,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:27:43,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:27:43,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147319469] [2020-09-25 06:27:43,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:27:43,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:27:43,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:27:43,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:27:43,241 INFO L87 Difference]: Start difference. First operand 525 states and 578 transitions. Second operand 9 states. [2020-09-25 06:27:43,939 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:27:45,313 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:27:45,666 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:27:46,024 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:27:46,391 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:27:46,716 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:27:47,255 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:27:47,608 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190