/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:51:51,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:51:51,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:51:51,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:51:51,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:51:51,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:51:51,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:51:51,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:51:51,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:51:51,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:51:51,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:51:51,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:51:51,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:51:51,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:51:51,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:51:51,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:51:51,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:51:51,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:51:51,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:51:51,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:51:51,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:51:51,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:51:51,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:51:51,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:51:51,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:51:51,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:51:51,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:51:51,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:51:51,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:51:51,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:51:51,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:51:51,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:51:51,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:51:51,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:51:51,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:51:51,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:51:51,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:51:51,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:51:51,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:51:51,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:51:51,264 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:51:51,265 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 09:51:51,308 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:51:51,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:51:51,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:51:51,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:51:51,311 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:51:51,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:51:51,311 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:51:51,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:51:51,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:51:51,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:51:51,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:51:51,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:51:51,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:51:51,314 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:51:51,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:51:51,314 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:51:51,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:51:51,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:51:51,315 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:51:51,315 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:51:51,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:51:51,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:51:51,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:51:51,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:51:51,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:51:51,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:51:51,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:51:51,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:51:51,317 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:51:51,317 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:51:51,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:51:51,772 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:51:51,777 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:51:51,779 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:51:51,779 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:51:51,780 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product30.cil.c [2020-09-25 09:51:51,863 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70a4fdd33/fe489a2a3aef413695def793b6bd2d83/FLAG88497a341 [2020-09-25 09:51:52,436 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:51:52,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product30.cil.c [2020-09-25 09:51:52,454 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70a4fdd33/fe489a2a3aef413695def793b6bd2d83/FLAG88497a341 [2020-09-25 09:51:52,727 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70a4fdd33/fe489a2a3aef413695def793b6bd2d83 [2020-09-25 09:51:52,744 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:51:52,751 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:51:52,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:51:52,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:51:52,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:51:52,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:51:52" (1/1) ... [2020-09-25 09:51:52,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284ba15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:52, skipping insertion in model container [2020-09-25 09:51:52,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:51:52" (1/1) ... [2020-09-25 09:51:52,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:51:52,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:51:53,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:51:53,336 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:51:53,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:51:53,459 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:51:53,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:53 WrapperNode [2020-09-25 09:51:53,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:51:53,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:51:53,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:51:53,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:51:53,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:53" (1/1) ... [2020-09-25 09:51:53,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:53" (1/1) ... [2020-09-25 09:51:53,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:53" (1/1) ... [2020-09-25 09:51:53,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:53" (1/1) ... [2020-09-25 09:51:53,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:53" (1/1) ... [2020-09-25 09:51:53,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:53" (1/1) ... [2020-09-25 09:51:53,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:53" (1/1) ... [2020-09-25 09:51:53,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:51:53,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:51:53,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:51:53,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:51:53,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:53" (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 09:51:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:51:53,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:51:53,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:51:53,686 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:51:53,686 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:51:53,687 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:51:53,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:51:53,687 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:51:53,687 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:51:53,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 09:51:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:51:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:51:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:51:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 09:51:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:51:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 09:51:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:51:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:51:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:51:53,690 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:51:53,690 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:51:53,690 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 09:51:53,690 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 09:51:53,690 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:51:53,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:51:53,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:51:53,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:51:53,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:51:53,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:51:53,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:51:53,691 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:51:53,692 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:51:53,692 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:51:53,692 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:51:53,692 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:51:53,692 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:51:53,692 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:51:53,693 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:51:53,693 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:51:53,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:51:53,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:51:53,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:51:53,693 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:51:53,694 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:51:53,694 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:51:53,694 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:51:53,694 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:51:53,694 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:51:53,694 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:51:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 09:51:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:51:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:51:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:51:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:51:53,696 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:51:53,696 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:51:53,696 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:51:53,696 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:51:53,696 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 09:51:53,696 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:51:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:51:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 09:51:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 09:51:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:51:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 09:51:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:51:53,698 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:51:53,698 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:51:53,698 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:51:53,698 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:51:53,698 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:51:53,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:51:53,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:51:53,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:51:53,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:51:53,699 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:51:53,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:51:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:51:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:51:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:51:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:51:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:51:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:51:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:51:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:51:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:51:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:51:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:51:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:51:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:51:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:51:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:51:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:51:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:51:54,938 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:51:54,938 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:51:54,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:51:54 BoogieIcfgContainer [2020-09-25 09:51:54,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:51:54,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:51:54,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:51:54,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:51:54,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:51:52" (1/3) ... [2020-09-25 09:51:54,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48cdb649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:51:54, skipping insertion in model container [2020-09-25 09:51:54,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:53" (2/3) ... [2020-09-25 09:51:54,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48cdb649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:51:54, skipping insertion in model container [2020-09-25 09:51:54,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:51:54" (3/3) ... [2020-09-25 09:51:54,956 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product30.cil.c [2020-09-25 09:51:54,968 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:51:54,980 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:51:55,002 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:51:55,037 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:51:55,038 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:51:55,038 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:51:55,038 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:51:55,038 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:51:55,038 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:51:55,038 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:51:55,038 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:51:55,067 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states. [2020-09-25 09:51:55,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 09:51:55,085 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:51:55,087 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 09:51:55,087 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:51:55,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:51:55,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1040203162, now seen corresponding path program 1 times [2020-09-25 09:51:55,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:51:55,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186224043] [2020-09-25 09:51:55,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:51:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:55,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:55,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:57,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:58,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:00,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:00,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 09:52:00,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:52:00,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 09:52:00,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:00,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:00,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:52:00,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 09:52:00,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 09:52:00,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 09:52:01,197 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:01,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:52:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:01,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:01,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:01,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:52:01,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:01,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330 [2020-09-25 09:52:01,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:01,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:01,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:01,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:01,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 09:52:01,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:01,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:52:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:01,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:01,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:01,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:01,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:01,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:52:01,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:01,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:01,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:01,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:01,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:01,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:01,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:52:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:01,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:01,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:01,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:01,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:01,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:01,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:01,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:01,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:01,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:01,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:01,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:01,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:52:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:01,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:01,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:01,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:01,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:01,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:52:01,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:01,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:01,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:01,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:01,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:01,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:01,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:52:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:01,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:01,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:01,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:01,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:01,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:01,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:01,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:01,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:01,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:01,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:01,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:01,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 09:52:01,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:01,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:01,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:01,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:01,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:01,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:52:01,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:01,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:01,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:52:01,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:01,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:01,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:01,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 09:52:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:01,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:01,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:01,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:01,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:01,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:01,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:01,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:01,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:01,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:01,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:01,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:01,849 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 09:52:01,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186224043] [2020-09-25 09:52:01,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:52:01,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:52:01,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438667516] [2020-09-25 09:52:01,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:52:01,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:52:01,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:52:01,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:52:01,886 INFO L87 Difference]: Start difference. First operand 314 states. Second operand 8 states. [2020-09-25 09:52:02,636 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:03,665 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:04,038 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:52:04,494 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:04,909 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:05,285 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:05,671 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:06,000 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:07,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:52:07,990 INFO L93 Difference]: Finished difference Result 627 states and 769 transitions. [2020-09-25 09:52:07,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:52:07,992 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 09:52:07,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:52:08,031 INFO L225 Difference]: With dead ends: 627 [2020-09-25 09:52:08,031 INFO L226 Difference]: Without dead ends: 434 [2020-09-25 09:52:08,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:52:08,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-09-25 09:52:08,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 390. [2020-09-25 09:52:08,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2020-09-25 09:52:08,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 441 transitions. [2020-09-25 09:52:08,222 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 441 transitions. Word has length 142 [2020-09-25 09:52:08,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:52:08,223 INFO L479 AbstractCegarLoop]: Abstraction has 390 states and 441 transitions. [2020-09-25 09:52:08,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:52:08,223 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 441 transitions. [2020-09-25 09:52:08,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 09:52:08,230 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:52:08,230 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] [2020-09-25 09:52:08,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:52:08,230 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:52:08,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:52:08,231 INFO L82 PathProgramCache]: Analyzing trace with hash -624706244, now seen corresponding path program 1 times [2020-09-25 09:52:08,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:52:08,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [642219488] [2020-09-25 09:52:08,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:52:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:08,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:08,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:09,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:13,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:13,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 09:52:13,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:52:13,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 09:52:13,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:13,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:13,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:52:13,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 09:52:13,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 09:52:13,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:13,650 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:13,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:52:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:13,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:13,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:13,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:52:13,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:13,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-25 09:52:13,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:13,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:13,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:13,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:13,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 09:52:13,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:13,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:52:13,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:13,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:13,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:13,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:13,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:13,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:13,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:13,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:13,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:13,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:13,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:13,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:13,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:52:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:13,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:13,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:13,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:13,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:13,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:13,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:13,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:13,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:13,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:13,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:13,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:13,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:52:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:13,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:13,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:13,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:13,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:13,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:52:13,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:13,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:13,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:13,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:13,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:13,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:13,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:52:13,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:13,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:13,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:13,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:13,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:13,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:13,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:13,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:13,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:13,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:13,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:13,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:13,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:52:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:13,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:13,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:13,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:52:13,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:13,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:52:13,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:13,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:13,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:13,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:13,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:52:13,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:13,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 09:52:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:13,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:13,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:14,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:14,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:14,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:14,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:14,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:14,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:14,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:14,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:14,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:14,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 09:52:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:14,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:14,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:14,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:14,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:14,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:14,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:14,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:14,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:14,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:14,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:14,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:52:14,043 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 09:52:14,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [642219488] [2020-09-25 09:52:14,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:52:14,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:52:14,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750766604] [2020-09-25 09:52:14,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:52:14,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:52:14,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:52:14,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:52:14,049 INFO L87 Difference]: Start difference. First operand 390 states and 441 transitions. Second operand 5 states. [2020-09-25 09:52:14,547 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:15,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:52:15,606 INFO L93 Difference]: Finished difference Result 721 states and 870 transitions. [2020-09-25 09:52:15,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:52:15,607 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 09:52:15,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:52:15,613 INFO L225 Difference]: With dead ends: 721 [2020-09-25 09:52:15,613 INFO L226 Difference]: Without dead ends: 441 [2020-09-25 09:52:15,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:52:15,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-09-25 09:52:15,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 386. [2020-09-25 09:52:15,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-09-25 09:52:15,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 432 transitions. [2020-09-25 09:52:15,679 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 432 transitions. Word has length 148 [2020-09-25 09:52:15,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:52:15,680 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 432 transitions. [2020-09-25 09:52:15,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:52:15,681 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 432 transitions. [2020-09-25 09:52:15,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 09:52:15,684 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:52:15,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:52:15,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:52:15,685 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:52:15,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:52:15,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1725293936, now seen corresponding path program 1 times [2020-09-25 09:52:15,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:52:15,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1927976766] [2020-09-25 09:52:15,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:52:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:15,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:15,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:16,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:16,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:20,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:20,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 09:52:20,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:52:20,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 09:52:20,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:20,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 09:52:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 09:52:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-25 09:52:20,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:52:21,171 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:21,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:52:21,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:21,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:21,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:21,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:52:21,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:21,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-25 09:52:21,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:21,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:21,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:21,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:21,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 09:52:21,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:21,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:52:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:21,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:21,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:21,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:21,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:21,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:21,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:21,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:21,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:21,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:21,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:21,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:21,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:52:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:21,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:21,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:21,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:21,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:21,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:21,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:21,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:21,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:21,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:21,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:52:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:21,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:21,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:21,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:21,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:21,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:52:21,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:21,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:21,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:21,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:21,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:21,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:21,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:52:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:21,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:21,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:21,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:21,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:21,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:21,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:21,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:21,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:21,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:21,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:21,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:21,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 09:52:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:21,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:21,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:21,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:52:21,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:21,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:52:21,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:21,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:21,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:21,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:21,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:52:21,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:21,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 09:52:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:21,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:21,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:21,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:52:21,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:21,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:52:21,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:21,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:21,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:21,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:21,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:52:21,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:21,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 09:52:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:21,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:21,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:21,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:21,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:21,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 09:52:21,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:52:21,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 09:52:21,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:21,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:21,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:52:21,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:52:21,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:52:21,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:21,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:52:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:21,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:21,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:21,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:21,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:52:21,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:52:21,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 09:52:21,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:21,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:21,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:52:21,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:52:21,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 09:52:21,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:21,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:52:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:21,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:21,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:21,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:21,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:21,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:52:21,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:21,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:21,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:21,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:21,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:21,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:21,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 09:52:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:21,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:21,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:21,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:21,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:21,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:52:21,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:21,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:21,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:21,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:21,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:21,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:21,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 09:52:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:21,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:21,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:21,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:21,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:21,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:52:21,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:21,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:21,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:52:21,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:21,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:21,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:22,026 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 09:52:22,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1927976766] [2020-09-25 09:52:22,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:52:22,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 09:52:22,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870283635] [2020-09-25 09:52:22,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 09:52:22,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:52:22,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 09:52:22,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-09-25 09:52:22,030 INFO L87 Difference]: Start difference. First operand 386 states and 432 transitions. Second operand 13 states. [2020-09-25 09:52:22,627 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:24,062 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:24,718 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 09:52:25,046 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:25,372 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:25,694 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:26,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:52:26,130 INFO L93 Difference]: Finished difference Result 618 states and 740 transitions. [2020-09-25 09:52:26,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 09:52:26,131 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 174 [2020-09-25 09:52:26,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:52:26,132 INFO L225 Difference]: With dead ends: 618 [2020-09-25 09:52:26,132 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 09:52:26,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=204, Invalid=446, Unknown=0, NotChecked=0, Total=650 [2020-09-25 09:52:26,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 09:52:26,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 09:52:26,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 09:52:26,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 09:52:26,140 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2020-09-25 09:52:26,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:52:26,140 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 09:52:26,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 09:52:26,140 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 09:52:26,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 09:52:26,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:52:26,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 09:52:26,383 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:26,557 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:26,728 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:26,898 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:27,055 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:27,216 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:27,374 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:27,527 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:27,680 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:27,836 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:27,993 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:28,149 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:28,306 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:28,458 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:28,613 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:28,770 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:28,923 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:29,096 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:29,246 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:29,403 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:29,532 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 9 [2020-09-25 09:52:29,638 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 9 [2020-09-25 09:52:29,800 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:29,909 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 9 [2020-09-25 09:52:30,157 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 09:52:30,402 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 09:52:30,673 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 09:52:30,937 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 09:52:31,201 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 09:52:31,358 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:31,511 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:31,660 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:31,815 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:31,968 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:32,118 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:32,258 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:32,411 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:32,561 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:32,713 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:32,866 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:33,015 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:33,168 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:33,321 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:33,474 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:33,625 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:33,773 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:33,927 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:34,081 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:34,232 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:34,390 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:34,545 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:34,693 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:34,842 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:34,995 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:35,155 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:35,258 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 9 [2020-09-25 09:52:35,409 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:35,563 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:35,718 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:35,871 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:36,020 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:36,173 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:36,322 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:36,480 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:36,628 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:36,743 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 9 [2020-09-25 09:52:36,900 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:37,055 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:37,320 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 09:52:37,647 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 09:52:37,963 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 09:52:38,224 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 09:52:38,537 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 09:52:38,799 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 09:52:39,061 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 09:52:39,322 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 09:52:39,642 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 09:52:39,808 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:39,961 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:40,116 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:40,273 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:40,420 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:40,575 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:40,838 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 09:52:41,082 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 09:52:41,347 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 09:52:41,608 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 09:52:41,870 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 09:52:42,021 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:42,278 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:42,427 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:42,580 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:42,749 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:42,898 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:43,050 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:43,203 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:43,356 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:43,509 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:43,952 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 11 [2020-09-25 09:52:44,163 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 09:52:44,603 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 15 [2020-09-25 09:52:44,992 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 15 [2020-09-25 09:52:45,177 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 1 [2020-09-25 09:52:45,395 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 09:52:45,833 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 15 [2020-09-25 09:52:46,060 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 09:52:46,489 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 11