/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=0.5 --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_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:21:02,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:21:02,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:21:02,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:21:02,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:21:02,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:21:02,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:21:02,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:21:02,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:21:02,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:21:02,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:21:02,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:21:02,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:21:02,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:21:02,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:21:02,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:21:02,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:21:02,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:21:02,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:21:02,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:21:02,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:21:02,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:21:02,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:21:02,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:21:02,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:21:02,735 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:21:02,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:21:02,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:21:02,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:21:02,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:21:02,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:21:02,749 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:21:02,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:21:02,754 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:21:02,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:21:02,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:21:02,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:21:02,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:21:02,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:21:02,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:21:02,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:21:02,764 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 14:21:02,808 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:21:02,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:21:02,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:21:02,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:21:02,811 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:21:02,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:21:02,812 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:21:02,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:21:02,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:21:02,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:21:02,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:21:02,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:21:02,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:21:02,815 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:21:02,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:21:02,815 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:21:02,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:21:02,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:21:02,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:21:02,816 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:21:02,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:21:02,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:21:02,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:21:02,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:21:02,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:21:02,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:21:02,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:21:02,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:21:02,817 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:21:02,818 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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;log-additional-information=true; [2020-09-25 14:21:03,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:21:03,292 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:21:03,297 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:21:03,298 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:21:03,299 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:21:03,300 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product20.cil.c [2020-09-25 14:21:03,391 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9dcb07c9/a73ce26289864268b00bcacdd2d2b5c0/FLAG8839a35cf [2020-09-25 14:21:04,011 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:21:04,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product20.cil.c [2020-09-25 14:21:04,026 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9dcb07c9/a73ce26289864268b00bcacdd2d2b5c0/FLAG8839a35cf [2020-09-25 14:21:04,297 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9dcb07c9/a73ce26289864268b00bcacdd2d2b5c0 [2020-09-25 14:21:04,311 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:21:04,318 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:21:04,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:21:04,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:21:04,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:21:04,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:21:04" (1/1) ... [2020-09-25 14:21:04,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156a129e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:04, skipping insertion in model container [2020-09-25 14:21:04,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:21:04" (1/1) ... [2020-09-25 14:21:04,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:21:04,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:21:04,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:21:04,936 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:21:05,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:21:05,066 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:21:05,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:05 WrapperNode [2020-09-25 14:21:05,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:21:05,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:21:05,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:21:05,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:21:05,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:05" (1/1) ... [2020-09-25 14:21:05,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:05" (1/1) ... [2020-09-25 14:21:05,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:05" (1/1) ... [2020-09-25 14:21:05,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:05" (1/1) ... [2020-09-25 14:21:05,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:05" (1/1) ... [2020-09-25 14:21:05,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:05" (1/1) ... [2020-09-25 14:21:05,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:05" (1/1) ... [2020-09-25 14:21:05,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:21:05,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:21:05,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:21:05,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:21:05,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:05" (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 14:21:05,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:21:05,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:21:05,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:21:05,292 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:21:05,292 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:21:05,292 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:21:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:21:05,294 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:21:05,294 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:21:05,294 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:21:05,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:21:05,294 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:21:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:21:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 14:21:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:21:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:21:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:21:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:21:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:21:05,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:21:05,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:21:05,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:21:05,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:21:05,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:21:05,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:21:05,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:21:05,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 14:21:05,299 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:21:05,299 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:21:05,299 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:21:05,300 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:21:05,300 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:21:05,300 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:21:05,300 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:21:05,300 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:21:05,300 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 14:21:05,300 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 14:21:05,301 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 14:21:05,301 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:21:05,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:21:05,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:21:05,301 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:21:05,301 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:21:05,302 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:21:05,302 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:21:05,302 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:21:05,302 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:21:05,302 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:21:05,302 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:21:05,303 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:21:05,303 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:21:05,303 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:21:05,304 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 14:21:05,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:21:05,304 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:21:05,304 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:21:05,304 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:21:05,305 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:21:05,305 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:21:05,305 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:21:05,305 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:21:05,305 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:21:05,305 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:21:05,306 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:21:05,306 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:21:05,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:21:05,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:21:05,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:21:05,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:21:05,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:21:05,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:21:05,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:21:05,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:21:05,309 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:21:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:21:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:21:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:21:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:21:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:21:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:21:05,311 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 14:21:05,311 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:21:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:21:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 14:21:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 14:21:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:21:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:21:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 14:21:05,313 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:21:05,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:21:05,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:21:05,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:21:06,478 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:21:06,478 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:21:06,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:21:06 BoogieIcfgContainer [2020-09-25 14:21:06,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:21:06,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:21:06,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:21:06,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:21:06,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:21:04" (1/3) ... [2020-09-25 14:21:06,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c52959b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:21:06, skipping insertion in model container [2020-09-25 14:21:06,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:05" (2/3) ... [2020-09-25 14:21:06,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c52959b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:21:06, skipping insertion in model container [2020-09-25 14:21:06,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:21:06" (3/3) ... [2020-09-25 14:21:06,496 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product20.cil.c [2020-09-25 14:21:06,508 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:21:06,519 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:21:06,542 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:21:06,573 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:21:06,573 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:21:06,573 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:21:06,574 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:21:06,574 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:21:06,574 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:21:06,574 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:21:06,574 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:21:06,599 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2020-09-25 14:21:06,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 14:21:06,617 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:21:06,618 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 14:21:06,619 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:21:06,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:21:06,626 INFO L82 PathProgramCache]: Analyzing trace with hash -303745462, now seen corresponding path program 1 times [2020-09-25 14:21:06,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:21:06,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [368834774] [2020-09-25 14:21:06,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:21:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:07,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:07,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:08,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:09,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:12,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:12,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 14:21:12,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:21:12,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 14:21:12,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:12,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:12,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:21:12,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 14:21:12,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:21:12,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 14:21:12,549 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:21:12,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:21:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:12,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:12,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:12,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:21:12,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:12,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-09-25 14:21:12,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:12,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:12,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:12,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:12,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:21:12,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:21:13,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:21:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:13,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:13,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:13,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:13,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:13,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:21:13,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:13,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:13,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:13,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:13,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:13,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:21:13,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:21:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:13,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:13,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:13,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:13,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:13,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:21:13,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:13,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:13,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:13,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:13,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:13,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:13,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:21:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:13,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:13,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:13,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:13,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:13,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:21:13,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:13,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:13,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:13,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:13,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:13,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:13,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:21:13,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:13,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:13,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:13,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:13,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:13,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:21:13,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:13,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:13,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:13,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:13,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:13,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:13,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:21:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:13,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:13,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:13,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:13,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:13,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:21:13,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:13,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:13,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:13,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:13,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:13,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:13,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:21:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:13,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:13,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:13,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:13,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:13,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:13,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:13,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:13,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:13,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:13,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:13,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:13,158 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 14:21:13,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [368834774] [2020-09-25 14:21:13,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:21:13,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:21:13,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617965222] [2020-09-25 14:21:13,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:21:13,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:21:13,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:21:13,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:21:13,196 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 5 states. [2020-09-25 14:21:13,903 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:21:14,824 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:21:17,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:21:17,026 INFO L93 Difference]: Finished difference Result 703 states and 882 transitions. [2020-09-25 14:21:17,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:21:17,034 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-09-25 14:21:17,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:21:17,075 INFO L225 Difference]: With dead ends: 703 [2020-09-25 14:21:17,075 INFO L226 Difference]: Without dead ends: 515 [2020-09-25 14:21:17,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:21:17,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2020-09-25 14:21:17,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 428. [2020-09-25 14:21:17,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2020-09-25 14:21:17,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 485 transitions. [2020-09-25 14:21:17,261 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 485 transitions. Word has length 142 [2020-09-25 14:21:17,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:21:17,262 INFO L479 AbstractCegarLoop]: Abstraction has 428 states and 485 transitions. [2020-09-25 14:21:17,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:21:17,263 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 485 transitions. [2020-09-25 14:21:17,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 14:21:17,269 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:21:17,269 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] [2020-09-25 14:21:17,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:21:17,270 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:21:17,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:21:17,271 INFO L82 PathProgramCache]: Analyzing trace with hash 368742722, now seen corresponding path program 1 times [2020-09-25 14:21:17,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:21:17,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132613546] [2020-09-25 14:21:17,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:21:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:17,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:17,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:18,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:18,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:22,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:22,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 14:21:22,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:21:22,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 14:21:22,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:22,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:22,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:21:22,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 14:21:22,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 14:21:22,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:22,726 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:21:22,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:21:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:22,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:23,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:23,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:21:23,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:23,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-25 14:21:23,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:23,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:23,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:23,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:23,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 14:21:23,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:23,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:21:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:23,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:23,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:23,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:23,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:23,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:23,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:23,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:23,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:23,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:23,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:23,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:23,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:21:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:23,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:23,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:23,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:23,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:23,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:23,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:23,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:23,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:23,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:23,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:23,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:23,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:21:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:23,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:23,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:23,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:23,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:23,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:21:23,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:23,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:23,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:23,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:23,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:23,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:23,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:21:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:23,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:23,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:23,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:23,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:23,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:21:23,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:23,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:23,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:23,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:23,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:23,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:23,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:21:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:23,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:23,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:23,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:21:23,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:23,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:23,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:23,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:23,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:23,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:23,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:21:23,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:23,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:21:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:23,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:23,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:23,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:23,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:23,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:21:23,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:23,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:23,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:23,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:23,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:23,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:23,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 14:21:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:23,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:23,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:23,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:23,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:23,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:21:23,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:23,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:23,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:21:23,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:23,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:23,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:23,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 14:21:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:23,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:23,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:23,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:23,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:23,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:23,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:23,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:23,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:23,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:23,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:23,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:23,195 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 14:21:23,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132613546] [2020-09-25 14:21:23,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:21:23,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:21:23,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125557638] [2020-09-25 14:21:23,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:21:23,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:21:23,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:21:23,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:21:23,200 INFO L87 Difference]: Start difference. First operand 428 states and 485 transitions. Second operand 9 states. [2020-09-25 14:21:23,751 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:21:25,062 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:21:25,383 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:25,751 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:21:26,132 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:26,463 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:21:26,770 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:21:27,065 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:21:28,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:21:28,563 INFO L93 Difference]: Finished difference Result 1280 states and 1669 transitions. [2020-09-25 14:21:28,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:21:28,564 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 14:21:28,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:21:28,575 INFO L225 Difference]: With dead ends: 1280 [2020-09-25 14:21:28,575 INFO L226 Difference]: Without dead ends: 962 [2020-09-25 14:21:28,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 14:21:28,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2020-09-25 14:21:28,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 734. [2020-09-25 14:21:28,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-09-25 14:21:28,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 875 transitions. [2020-09-25 14:21:28,717 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 875 transitions. Word has length 151 [2020-09-25 14:21:28,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:21:28,718 INFO L479 AbstractCegarLoop]: Abstraction has 734 states and 875 transitions. [2020-09-25 14:21:28,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:21:28,718 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 875 transitions. [2020-09-25 14:21:28,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 14:21:28,722 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:21:28,722 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] [2020-09-25 14:21:28,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:21:28,722 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:21:28,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:21:28,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1273435527, now seen corresponding path program 1 times [2020-09-25 14:21:28,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:21:28,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [828773065] [2020-09-25 14:21:28,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:21:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:28,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:28,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:29,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:33,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:33,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 14:21:33,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:21:33,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 14:21:33,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:33,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:33,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:21:33,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 14:21:33,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 14:21:33,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:21:34,160 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:21:34,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:21:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:34,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:34,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:34,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:21:34,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:34,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-09-25 14:21:34,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:34,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:34,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:34,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:34,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:21:34,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:34,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:21:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:34,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:34,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:34,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:34,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:34,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:21:34,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:34,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:34,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:34,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:34,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:34,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:34,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:21:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:34,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:34,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:34,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:34,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:34,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:34,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:34,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:34,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:34,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:34,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:34,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:34,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:21:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:34,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:34,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:34,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:34,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:34,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:21:34,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:34,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:34,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:34,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:34,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:34,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:21:34,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:21:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:34,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:34,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:34,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:34,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:34,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:34,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:34,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:34,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:34,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:34,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:34,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:21:34,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 14:21:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:34,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:34,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:34,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:21:34,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:34,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:34,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:34,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:34,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:34,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:21:34,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:34,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:34,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 14:21:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:34,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:34,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:34,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:21:34,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:34,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:34,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:34,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:34,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:34,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 14:21:34,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:34,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:34,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:21:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:34,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:34,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:34,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:34,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:34,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:34,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:34,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:34,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:34,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:34,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:34,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:34,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 14:21:34,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:34,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:34,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:34,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:34,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:34,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:34,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:34,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:34,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:34,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:34,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:34,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:34,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 14:21:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:34,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:34,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:34,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:34,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:34,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:34,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:34,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:34,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:34,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:34,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:34,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:34,750 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 14:21:34,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [828773065] [2020-09-25 14:21:34,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:21:34,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:21:34,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935536094] [2020-09-25 14:21:34,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:21:34,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:21:34,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:21:34,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:21:34,754 INFO L87 Difference]: Start difference. First operand 734 states and 875 transitions. Second operand 6 states. [2020-09-25 14:21:35,240 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:21:35,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:21:35,933 INFO L93 Difference]: Finished difference Result 1040 states and 1304 transitions. [2020-09-25 14:21:35,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:21:35,938 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-25 14:21:35,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:21:35,939 INFO L225 Difference]: With dead ends: 1040 [2020-09-25 14:21:35,939 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 14:21:35,943 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:21:35,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 14:21:35,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 14:21:35,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 14:21:35,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 14:21:35,945 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 156 [2020-09-25 14:21:35,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:21:35,945 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 14:21:35,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:21:35,945 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 14:21:35,945 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 14:21:35,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:21:35,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 14:21:36,148 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 10 [2020-09-25 14:21:36,318 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:36,491 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:21:36,660 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:37,037 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:21:37,320 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 189 [2020-09-25 14:21:37,589 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 189 [2020-09-25 14:21:37,852 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 189 [2020-09-25 14:21:38,122 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 14:21:38,395 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 14:21:38,735 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:21:39,087 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:21:39,347 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 189 [2020-09-25 14:21:39,613 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 14:21:39,960 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:21:40,318 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:21:40,592 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 14:21:40,755 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:21:40,914 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:41,081 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:41,296 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 10 [2020-09-25 14:21:41,467 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:41,766 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 190 [2020-09-25 14:21:42,067 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 190 [2020-09-25 14:21:42,378 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 190 [2020-09-25 14:21:42,524 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:21:42,682 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:42,836 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:21:42,990 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:21:43,144 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:21:43,304 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:21:43,462 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:21:43,620 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:43,779 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:43,932 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:21:44,090 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:21:44,248 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:44,407 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:44,567 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:21:44,726 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:21:44,878 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:21:45,038 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:45,243 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:45,402 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:45,560 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:45,712 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:21:45,870 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:46,027 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:21:46,186 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:21:46,343 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:21:46,501 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:46,621 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 10 [2020-09-25 14:21:46,773 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:21:46,931 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:47,088 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:21:47,250 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:21:47,409 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:47,568 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:21:47,726 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:47,906 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:21:48,064 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:21:48,224 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:48,379 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:21:48,537 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:21:48,697 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:49,039 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 14:21:49,283 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 14:21:49,527 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 14:21:49,771 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 14:21:50,017 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 14:21:50,263 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 14:21:50,587 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 14:21:50,926 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 14:21:51,172 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 14:21:51,417 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 14:21:51,742 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 14:21:52,067 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 14:21:52,317 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 14:21:52,476 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:21:52,628 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:21:52,781 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:21:52,958 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:21:53,116 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:53,276 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:53,436 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:53,564 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 10 [2020-09-25 14:21:53,721 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:53,879 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:54,037 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:54,305 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 14:21:54,565 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 189 [2020-09-25 14:21:54,826 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 189 [2020-09-25 14:21:55,092 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 14:21:55,432 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:21:55,771 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:21:56,111 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:21:56,376 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 14:21:56,636 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 189 [2020-09-25 14:21:56,895 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 189 [2020-09-25 14:21:57,159 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 14:21:57,500 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:21:57,840 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:21:58,180 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:21:58,346 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:58,509 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:21:58,669 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:58,782 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 10 [2020-09-25 14:21:58,900 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 10