/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:27:05,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:27:05,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:27:05,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:27:05,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:27:05,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:27:05,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:27:05,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:27:05,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:27:05,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:27:05,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:27:05,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:27:05,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:27:05,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:27:05,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:27:05,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:27:05,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:27:05,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:27:05,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:27:05,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:27:05,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:27:05,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:27:05,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:27:05,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:27:05,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:27:05,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:27:05,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:27:05,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:27:05,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:27:05,173 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:27:05,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:27:05,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:27:05,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:27:05,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:27:05,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:27:05,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:27:05,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:27:05,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:27:05,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:27:05,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:27:05,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:27:05,182 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:27:05,207 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:27:05,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:27:05,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:27:05,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:27:05,209 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:27:05,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:27:05,210 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:27:05,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:27:05,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:27:05,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:27:05,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:27:05,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:27:05,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:27:05,211 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:27:05,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:27:05,212 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:27:05,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:27:05,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:27:05,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:27:05,213 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:27:05,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:27:05,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:27:05,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:27:05,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:27:05,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:27:05,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:27:05,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:27:05,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:27:05,215 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:27:05,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:27:05,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:27:05,750 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:27:05,756 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:27:05,758 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:27:05,758 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:27:05,759 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c [2020-09-25 07:27:05,857 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7a4c2f13/17b25b468b0940d4968d76a410dfd8cb/FLAGe5a60f3df [2020-09-25 07:27:06,490 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:27:06,491 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c [2020-09-25 07:27:06,510 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7a4c2f13/17b25b468b0940d4968d76a410dfd8cb/FLAGe5a60f3df [2020-09-25 07:27:06,780 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7a4c2f13/17b25b468b0940d4968d76a410dfd8cb [2020-09-25 07:27:06,796 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:27:06,803 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:27:06,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:27:06,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:27:06,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:27:06,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:27:06" (1/1) ... [2020-09-25 07:27:06,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:06, skipping insertion in model container [2020-09-25 07:27:06,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:27:06" (1/1) ... [2020-09-25 07:27:06,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:27:06,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:27:07,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:27:07,296 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:27:07,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:27:07,610 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:27:07,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:07 WrapperNode [2020-09-25 07:27:07,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:27:07,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:27:07,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:27:07,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:27:07,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:07" (1/1) ... [2020-09-25 07:27:07,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:07" (1/1) ... [2020-09-25 07:27:07,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:07" (1/1) ... [2020-09-25 07:27:07,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:07" (1/1) ... [2020-09-25 07:27:07,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:07" (1/1) ... [2020-09-25 07:27:07,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:07" (1/1) ... [2020-09-25 07:27:07,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:07" (1/1) ... [2020-09-25 07:27:07,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:27:07,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:27:07,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:27:07,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:27:07,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:27:07,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:27:07,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:27:07,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:27:07,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 07:27:07,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:27:07,843 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:27:07,843 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:27:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:27:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:27:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:27:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:27:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:27:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:27:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:27:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:27:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:27:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:27:07,847 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:27:07,847 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:27:07,847 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:27:07,848 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 07:27:07,848 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:27:07,848 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:27:07,849 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:27:07,849 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:27:07,850 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:27:07,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:27:07,850 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:27:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:27:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:27:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:27:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:27:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:27:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:27:07,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:27:07,852 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:27:07,852 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:27:07,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:27:07,852 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:27:07,853 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:27:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:27:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:27:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:27:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:27:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:27:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:27:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 07:27:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:27:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:27:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:27:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:27:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:27:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:27:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:27:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:27:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:27:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:27:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:27:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:27:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:27:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:27:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:27:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:27:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:27:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:27:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:27:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:27:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:27:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 07:27:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:27:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:27:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:27:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:27:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:27:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:27:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:27:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:27:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:27:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:27:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:27:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:27:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:27:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:27:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:27:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:27:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:27:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:27:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:27:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:27:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:27:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:27:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:27:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:27:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:27:09,189 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:27:09,189 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:27:09,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:27:09 BoogieIcfgContainer [2020-09-25 07:27:09,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:27:09,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:27:09,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:27:09,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:27:09,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:27:06" (1/3) ... [2020-09-25 07:27:09,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3a5b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:27:09, skipping insertion in model container [2020-09-25 07:27:09,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:07" (2/3) ... [2020-09-25 07:27:09,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3a5b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:27:09, skipping insertion in model container [2020-09-25 07:27:09,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:27:09" (3/3) ... [2020-09-25 07:27:09,206 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product47.cil.c [2020-09-25 07:27:09,219 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:27:09,231 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:27:09,254 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:27:09,288 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:27:09,289 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:27:09,289 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:27:09,289 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:27:09,289 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:27:09,289 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:27:09,290 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:27:09,290 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:27:09,325 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-25 07:27:09,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 07:27:09,345 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:09,346 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 07:27:09,347 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:09,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:09,354 INFO L82 PathProgramCache]: Analyzing trace with hash -479235834, now seen corresponding path program 1 times [2020-09-25 07:27:09,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:09,366 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [810395769] [2020-09-25 07:27:09,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:09,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:10,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:11,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:12,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:14,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:14,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:14,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 07:27:14,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:27:14,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-25 07:27:14,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:14,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:14,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:14,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:27:14,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:14,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 07:27:15,231 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:15,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:15,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:15,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:15,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:15,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:15,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-25 07:27:15,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:15,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:15,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:15,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:15,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:15,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:15,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:15,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:15,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:15,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:15,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:15,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:15,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:15,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:15,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:15,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:15,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:15,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:15,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:15,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:15,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:15,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:15,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:15,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:15,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:15,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:15,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:15,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:15,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:15,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:27:15,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:15,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:15,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:15,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:15,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:15,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:15,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:15,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:15,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:15,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:15,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:15,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:15,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:15,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:15,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:15,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:15,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:15,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:15,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:15,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:15,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:15,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:15,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:15,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:15,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:15,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:27:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:15,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:15,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:15,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:15,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:15,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:15,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:15,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:15,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:15,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:15,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:15,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:15,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:27:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:15,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:15,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:15,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:15,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:15,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:15,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:15,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:15,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:15,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:15,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:15,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:15,555 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 07:27:15,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [810395769] [2020-09-25 07:27:15,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:15,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:27:15,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102046877] [2020-09-25 07:27:15,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:27:15,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:15,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:27:15,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:27:15,596 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 3 states. [2020-09-25 07:27:17,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:27:17,179 INFO L93 Difference]: Finished difference Result 501 states and 601 transitions. [2020-09-25 07:27:17,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:27:17,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 07:27:17,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:27:17,208 INFO L225 Difference]: With dead ends: 501 [2020-09-25 07:27:17,208 INFO L226 Difference]: Without dead ends: 310 [2020-09-25 07:27:17,219 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 07:27:17,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-09-25 07:27:17,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 265. [2020-09-25 07:27:17,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-09-25 07:27:17,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 291 transitions. [2020-09-25 07:27:17,443 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 291 transitions. Word has length 142 [2020-09-25 07:27:17,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:27:17,444 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 291 transitions. [2020-09-25 07:27:17,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:27:17,444 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 291 transitions. [2020-09-25 07:27:17,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 07:27:17,449 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:17,449 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 07:27:17,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:27:17,450 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:17,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:17,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1495008589, now seen corresponding path program 1 times [2020-09-25 07:27:17,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:17,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1263144843] [2020-09-25 07:27:17,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:17,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:17,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:19,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:19,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:20,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:22,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:22,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 07:27:22,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:27:22,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 07:27:22,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:22,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:22,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:22,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:27:22,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:27:22,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:22,889 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:22,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:22,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:23,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:23,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:23,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:23,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 07:27:23,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:23,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:23,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:23,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:23,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:23,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:23,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:23,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:23,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:23,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:23,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:23,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:23,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:23,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:23,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:23,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:23,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:23,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:23,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:23,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:23,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:23,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:23,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:23,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:23,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:23,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:23,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:23,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:23,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:23,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:23,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:23,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:23,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:23,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:23,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:23,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:23,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:27:23,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:23,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:23,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:23,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:23,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:23,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:23,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:23,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:23,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:23,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:23,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:23,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:23,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:23,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:23,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:23,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:23,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:23,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:27:23,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:27:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:23,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:23,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:23,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:23,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:23,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:23,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:23,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:23,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:23,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:23,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:23,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:23,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:27:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:23,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:23,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:23,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:23,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:23,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:23,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:23,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:23,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:23,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:23,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:23,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:23,181 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 07:27:23,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1263144843] [2020-09-25 07:27:23,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:23,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:27:23,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596807836] [2020-09-25 07:27:23,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:27:23,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:23,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:27:23,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:27:23,190 INFO L87 Difference]: Start difference. First operand 265 states and 291 transitions. Second operand 4 states. [2020-09-25 07:27:23,838 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:27:24,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:27:24,989 INFO L93 Difference]: Finished difference Result 412 states and 468 transitions. [2020-09-25 07:27:24,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:27:24,990 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 07:27:24,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:27:24,996 INFO L225 Difference]: With dead ends: 412 [2020-09-25 07:27:24,996 INFO L226 Difference]: Without dead ends: 293 [2020-09-25 07:27:24,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 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 07:27:24,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-09-25 07:27:25,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 255. [2020-09-25 07:27:25,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 07:27:25,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 278 transitions. [2020-09-25 07:27:25,045 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 278 transitions. Word has length 143 [2020-09-25 07:27:25,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:27:25,045 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 278 transitions. [2020-09-25 07:27:25,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:27:25,046 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 278 transitions. [2020-09-25 07:27:25,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 07:27:25,048 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:25,049 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 07:27:25,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:27:25,049 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:25,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:25,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1257512961, now seen corresponding path program 1 times [2020-09-25 07:27:25,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:25,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1772128167] [2020-09-25 07:27:25,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:25,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:25,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:26,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:26,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:30,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:30,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 07:27:30,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:27:30,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 07:27:30,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:30,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:30,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:27:30,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 07:27:30,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 07:27:30,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:30,565 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:30,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:30,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:30,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:30,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:30,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:30,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-25 07:27:30,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:30,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:30,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:30,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:30,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 07:27:30,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:30,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:30,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:30,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:30,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:30,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:30,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:30,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:30,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:30,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:30,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:30,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:27:30,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:30,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:30,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:30,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:30,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:30,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:30,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:30,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:30,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:30,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:30,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:30,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:27:30,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:30,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:30,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:30,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:30,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:30,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:30,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:27:30,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:30,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:30,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:30,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:30,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:27:30,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:30,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:31,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:31,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:31,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:31,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:31,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:31,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:31,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:27:31,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:31,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:27:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:31,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:31,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:31,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:31,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:31,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:31,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:31,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:31,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:31,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:31,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:31,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:31,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 07:27:31,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:31,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:31,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:31,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:31,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:31,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:31,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:31,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:31,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:31,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:31,054 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 07:27:31,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1772128167] [2020-09-25 07:27:31,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:31,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:27:31,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182533135] [2020-09-25 07:27:31,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:27:31,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:31,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:27:31,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:27:31,063 INFO L87 Difference]: Start difference. First operand 255 states and 278 transitions. Second operand 5 states. [2020-09-25 07:27:31,626 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:27:32,446 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:27:34,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:27:34,400 INFO L93 Difference]: Finished difference Result 680 states and 789 transitions. [2020-09-25 07:27:34,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:27:34,401 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-09-25 07:27:34,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:27:34,407 INFO L225 Difference]: With dead ends: 680 [2020-09-25 07:27:34,407 INFO L226 Difference]: Without dead ends: 535 [2020-09-25 07:27:34,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:27:34,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2020-09-25 07:27:34,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 464. [2020-09-25 07:27:34,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-09-25 07:27:34,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 524 transitions. [2020-09-25 07:27:34,481 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 524 transitions. Word has length 152 [2020-09-25 07:27:34,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:27:34,481 INFO L479 AbstractCegarLoop]: Abstraction has 464 states and 524 transitions. [2020-09-25 07:27:34,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:27:34,482 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 524 transitions. [2020-09-25 07:27:34,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 07:27:34,484 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:34,485 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 07:27:34,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:27:34,485 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:34,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:34,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1773615273, now seen corresponding path program 1 times [2020-09-25 07:27:34,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:34,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1173863725] [2020-09-25 07:27:34,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:34,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:35,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:35,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:36,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:39,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:39,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 07:27:39,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:27:39,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 07:27:39,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:39,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:39,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:27:39,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 07:27:39,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:27:39,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:39,908 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:39,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:39,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:40,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:40,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:40,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:40,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 07:27:40,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:40,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:40,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:40,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:40,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:40,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:40,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:40,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:40,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:40,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:40,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:40,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:40,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:40,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:40,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:40,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:40,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:40,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:40,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:40,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:40,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:40,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:40,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:40,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:40,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:40,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:40,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:40,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:40,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:40,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:40,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:40,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:40,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:40,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:40,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:40,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:40,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:40,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:40,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:40,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:40,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:40,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:40,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:40,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:40,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:40,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:40,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:40,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:40,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:40,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:40,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:40,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:40,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 07:27:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:40,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:40,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:40,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:27:40,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:40,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:27:40,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:40,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:40,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:40,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:40,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:27:40,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:40,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 07:27:40,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:40,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:40,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:40,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:40,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:40,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:27:40,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:40,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:40,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:40,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:40,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:27:40,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:40,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 07:27:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:40,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:40,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:40,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:40,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:40,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:27:40,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:40,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:40,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:27:40,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:40,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:27:40,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:40,328 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 07:27:40,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1173863725] [2020-09-25 07:27:40,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:40,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:27:40,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776037159] [2020-09-25 07:27:40,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:27:40,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:40,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:27:40,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:27:40,331 INFO L87 Difference]: Start difference. First operand 464 states and 524 transitions. Second operand 9 states. [2020-09-25 07:27:40,830 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:27:42,105 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:27:42,450 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:27:42,829 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:27:43,183 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 07:27:43,521 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:27:44,336 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:27:44,648 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:27:45,000 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:27:45,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:27:45,987 INFO L93 Difference]: Finished difference Result 1082 states and 1301 transitions. [2020-09-25 07:27:45,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:27:45,988 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 07:27:45,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:27:45,995 INFO L225 Difference]: With dead ends: 1082 [2020-09-25 07:27:45,995 INFO L226 Difference]: Without dead ends: 728 [2020-09-25 07:27:45,997 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 07:27:45,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-09-25 07:27:46,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 647. [2020-09-25 07:27:46,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 647 states. [2020-09-25 07:27:46,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 738 transitions. [2020-09-25 07:27:46,091 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 738 transitions. Word has length 161 [2020-09-25 07:27:46,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:27:46,092 INFO L479 AbstractCegarLoop]: Abstraction has 647 states and 738 transitions. [2020-09-25 07:27:46,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:27:46,092 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 738 transitions. [2020-09-25 07:27:46,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 07:27:46,095 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:46,096 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:27:46,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:27:46,096 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:46,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:46,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1594978526, now seen corresponding path program 1 times [2020-09-25 07:27:46,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:46,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [627630054] [2020-09-25 07:27:46,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:51,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:51,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-25 07:27:51,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:27:51,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 07:27:51,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:51,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:51,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:27:51,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-25 07:27:51,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:27:51,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:51,534 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:51,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:51,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:51,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:51,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:51,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:51,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 07:27:51,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:51,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:51,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:51,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:51,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:51,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:51,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:51,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:51,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:51,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:51,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:51,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:51,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:51,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:51,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:51,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:51,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:51,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:51,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:27:51,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:51,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:51,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:51,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:51,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:51,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:51,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:51,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:51,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:51,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:51,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:51,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:27:51,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:51,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:51,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:51,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:51,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:51,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:27:51,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:51,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:51,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:51,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:51,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:51,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:27:51,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:51,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:51,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:51,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:51,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:51,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:51,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:51,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:51,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:51,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:51,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:51,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:27:51,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 07:27:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:51,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:51,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:51,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 07:27:51,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:51,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 07:27:51,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:51,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:51,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:27:51,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 07:27:51,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:27:51,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:27:51,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:27:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:51,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:51,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:51,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 07:27:51,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:51,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 07:27:51,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:51,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:51,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:27:51,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 07:27:51,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:27:51,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:27:52,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:27:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:52,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:52,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:52,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:27:52,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:52,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 07:27:52,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:52,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:52,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:27:52,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:52,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 07:27:52,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:52,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:27:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:52,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:52,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:52,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:27:52,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:52,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:52,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:52,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:52,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:52,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:52,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:52,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:27:52,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:27:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:52,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:52,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:52,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 07:27:52,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:52,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:27:52,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:52,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:52,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:52,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 07:27:52,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:52,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:52,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:27:52,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:52,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:52,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:52,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 07:27:52,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:52,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:27:52,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:52,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:52,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:52,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:52,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:52,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:52,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:27:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:52,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:52,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:52,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:52,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:52,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:52,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:52,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:52,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:52,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:52,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:52,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:27:52,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 07:27:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:52,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:52,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:52,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:27:52,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:52,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:27:52,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:52,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:52,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:52,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:52,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:52,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:52,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 07:27:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:52,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:52,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:52,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:52,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:52,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:52,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:52,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:52,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:52,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:52,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:52,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:52,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-25 07:27:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:52,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:52,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:52,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:52,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:52,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:52,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:52,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:52,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:52,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:52,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:52,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:52,313 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:27:52,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [627630054] [2020-09-25 07:27:52,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:52,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:27:52,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686697463] [2020-09-25 07:27:52,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:27:52,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:52,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:27:52,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:27:52,316 INFO L87 Difference]: Start difference. First operand 647 states and 738 transitions. Second operand 9 states. [2020-09-25 07:27:53,671 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:27:53,991 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189