/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:17:19,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:17:19,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:17:19,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:17:19,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:17:19,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:17:19,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:17:19,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:17:19,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:17:19,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:17:19,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:17:19,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:17:19,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:17:19,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:17:19,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:17:19,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:17:19,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:17:19,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:17:19,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:17:19,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:17:19,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:17:19,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:17:19,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:17:19,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:17:19,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:17:19,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:17:19,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:17:19,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:17:19,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:17:19,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:17:19,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:17:19,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:17:19,628 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:17:19,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:17:19,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:17:19,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:17:19,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:17:19,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:17:19,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:17:19,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:17:19,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:17:19,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:17:19,661 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:17:19,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:17:19,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:17:19,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:17:19,664 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:17:19,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:17:19,664 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:17:19,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:17:19,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:17:19,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:17:19,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:17:19,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:17:19,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:17:19,666 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:17:19,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:17:19,666 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:17:19,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:17:19,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:17:19,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:17:19,667 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:17:19,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:17:19,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:17:19,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:17:19,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:17:19,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:17:19,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:17:19,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:17:19,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:17:19,669 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:17:19,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:17:20,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:17:20,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:17:20,182 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:17:20,184 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:17:20,184 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:17:20,185 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-09-25 06:17:20,266 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad63b6903/7878e8db4d6c4d8d818fc1f5b971f1b0/FLAGd262b1309 [2020-09-25 06:17:20,949 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:17:20,950 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-09-25 06:17:20,965 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad63b6903/7878e8db4d6c4d8d818fc1f5b971f1b0/FLAGd262b1309 [2020-09-25 06:17:21,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad63b6903/7878e8db4d6c4d8d818fc1f5b971f1b0 [2020-09-25 06:17:21,177 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:17:21,183 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:17:21,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:17:21,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:17:21,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:17:21,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:17:21" (1/1) ... [2020-09-25 06:17:21,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16faf0d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:21, skipping insertion in model container [2020-09-25 06:17:21,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:17:21" (1/1) ... [2020-09-25 06:17:21,203 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:17:21,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:17:21,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:17:21,813 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:17:21,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:17:21,937 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:17:21,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:21 WrapperNode [2020-09-25 06:17:21,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:17:21,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:17:21,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:17:21,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:17:21,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:21" (1/1) ... [2020-09-25 06:17:21,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:21" (1/1) ... [2020-09-25 06:17:21,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:21" (1/1) ... [2020-09-25 06:17:21,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:21" (1/1) ... [2020-09-25 06:17:22,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:21" (1/1) ... [2020-09-25 06:17:22,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:21" (1/1) ... [2020-09-25 06:17:22,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:21" (1/1) ... [2020-09-25 06:17:22,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:17:22,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:17:22,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:17:22,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:17:22,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:21" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:17:22,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:17:22,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:17:22,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:17:22,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:17:22,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:17:22,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:17:22,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:17:22,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:17:22,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:17:22,119 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:17:22,119 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:17:22,120 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:17:22,120 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:17:22,120 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:17:22,120 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:17:22,120 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:17:22,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:17:22,121 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:17:22,121 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:17:22,124 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:17:22,124 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 06:17:22,124 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:17:22,124 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:17:22,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:17:22,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:17:22,125 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:17:22,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:17:22,125 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:17:22,125 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:17:22,125 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:17:22,125 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:17:22,126 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:17:22,128 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:17:22,128 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:17:22,128 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:17:22,128 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:17:22,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:17:22,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 06:17:22,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:17:22,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:17:22,130 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:17:22,130 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:17:22,131 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:17:22,131 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:17:22,131 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:17:22,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:17:22,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:17:22,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:17:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:17:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:17:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:17:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:17:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:17:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:17:22,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:17:22,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:17:22,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:17:22,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:17:22,133 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:17:22,133 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:17:22,133 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:17:22,134 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:17:22,134 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:17:22,134 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:17:22,134 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:17:22,134 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:17:22,134 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:17:22,134 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:17:22,135 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:17:22,135 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:17:22,135 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:17:22,135 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:17:22,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 06:17:22,135 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:17:22,136 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:17:22,136 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:17:22,136 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 06:17:22,136 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:17:22,136 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:17:22,136 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:17:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:17:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:17:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:17:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:17:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:17:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:17:22,138 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:17:22,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:17:22,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:17:22,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:17:23,319 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:17:23,320 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:17:23,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:17:23 BoogieIcfgContainer [2020-09-25 06:17:23,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:17:23,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:17:23,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:17:23,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:17:23,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:17:21" (1/3) ... [2020-09-25 06:17:23,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26d891aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:17:23, skipping insertion in model container [2020-09-25 06:17:23,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:21" (2/3) ... [2020-09-25 06:17:23,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26d891aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:17:23, skipping insertion in model container [2020-09-25 06:17:23,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:17:23" (3/3) ... [2020-09-25 06:17:23,337 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product41.cil.c [2020-09-25 06:17:23,350 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:17:23,362 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:17:23,386 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:17:23,421 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:17:23,421 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:17:23,421 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:17:23,422 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:17:23,422 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:17:23,422 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:17:23,422 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:17:23,422 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:17:23,454 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-09-25 06:17:23,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 06:17:23,471 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:17:23,473 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:17:23,474 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:17:23,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:17:23,483 INFO L82 PathProgramCache]: Analyzing trace with hash -304356178, now seen corresponding path program 1 times [2020-09-25 06:17:23,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:17:23,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [305908162] [2020-09-25 06:17:23,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:17:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:24,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:24,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:24,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:25,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:26,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:28,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:28,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 06:17:28,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:17:28,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 06:17:28,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:28,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:28,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:28,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 06:17:28,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:28,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 06:17:29,462 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:17:29,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:17:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:29,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:29,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:29,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:17:29,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:29,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 06:17:29,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:29,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:29,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:29,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:29,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:29,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:29,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:17:29,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:29,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:29,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:29,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:29,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:29,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:17:29,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:29,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:29,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:29,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:29,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:29,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:29,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:17:29,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:29,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:29,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:29,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:29,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:29,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:17:29,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:29,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:29,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:29,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:29,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:29,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:29,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:17:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:29,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:29,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:29,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:29,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:29,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:17:29,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:29,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:29,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:29,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:29,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:29,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:29,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:17:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:29,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:29,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:29,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:29,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:29,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:17:29,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:29,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:29,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:29,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:29,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:29,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:29,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 06:17:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:29,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:29,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:29,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:29,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:29,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:17:29,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:29,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:29,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:29,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:17:29,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:29,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:29,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:17:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:29,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:29,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:29,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:29,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:29,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:17:29,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:29,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:29,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:29,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:17:29,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:29,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:29,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:17:29,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [305908162] [2020-09-25 06:17:29,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:17:29,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:17:29,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934547150] [2020-09-25 06:17:29,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:17:29,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:17:29,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:17:29,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:17:29,869 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 3 states. [2020-09-25 06:17:31,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:17:31,255 INFO L93 Difference]: Finished difference Result 455 states and 541 transitions. [2020-09-25 06:17:31,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:17:31,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 06:17:31,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:17:31,277 INFO L225 Difference]: With dead ends: 455 [2020-09-25 06:17:31,278 INFO L226 Difference]: Without dead ends: 285 [2020-09-25 06:17:31,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:17:31,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-09-25 06:17:31,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 244. [2020-09-25 06:17:31,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-25 06:17:31,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 264 transitions. [2020-09-25 06:17:31,386 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 264 transitions. Word has length 142 [2020-09-25 06:17:31,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:17:31,387 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 264 transitions. [2020-09-25 06:17:31,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:17:31,388 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 264 transitions. [2020-09-25 06:17:31,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 06:17:31,392 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:17:31,392 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:17:31,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:17:31,393 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:17:31,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:17:31,394 INFO L82 PathProgramCache]: Analyzing trace with hash -971808182, now seen corresponding path program 1 times [2020-09-25 06:17:31,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:17:31,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1667493822] [2020-09-25 06:17:31,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:17:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:31,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:31,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:32,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:32,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:33,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:36,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:36,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 06:17:36,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:17:36,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 06:17:36,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:36,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:36,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:17:36,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 06:17:36,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 06:17:36,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:36,915 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:17:36,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:17:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:36,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:37,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:37,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:17:37,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:37,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-25 06:17:37,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:37,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:37,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:17:37,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:37,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 06:17:37,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:37,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:17:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:37,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:37,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:37,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:37,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:37,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:17:37,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:37,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:37,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:17:37,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:37,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:17:37,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:37,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:17:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:37,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:37,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:37,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:37,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:37,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:17:37,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:37,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:37,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:17:37,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:37,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:17:37,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:37,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:17:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:37,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:37,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:37,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:37,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:37,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 06:17:37,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:37,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:37,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:17:37,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:37,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:17:37,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:37,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:17:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:37,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:37,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:37,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:37,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:37,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:17:37,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:37,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:37,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:17:37,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:37,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:17:37,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:37,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:17:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:37,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:37,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:37,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:37,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:37,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:17:37,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:37,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:37,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:37,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:17:37,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:37,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:37,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:17:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:37,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:37,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:37,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:37,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:37,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:17:37,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:37,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:37,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:37,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:17:37,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:37,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 53 [2020-09-25 06:17:37,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:17:37,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1667493822] [2020-09-25 06:17:37,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:17:37,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:17:37,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328480105] [2020-09-25 06:17:37,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:17:37,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:17:37,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:17:37,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:17:37,406 INFO L87 Difference]: Start difference. First operand 244 states and 264 transitions. Second operand 4 states. [2020-09-25 06:17:37,876 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:17:38,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:17:38,717 INFO L93 Difference]: Finished difference Result 419 states and 482 transitions. [2020-09-25 06:17:38,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:17:38,718 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 06:17:38,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:17:38,730 INFO L225 Difference]: With dead ends: 419 [2020-09-25 06:17:38,730 INFO L226 Difference]: Without dead ends: 285 [2020-09-25 06:17:38,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:17:38,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-09-25 06:17:38,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 244. [2020-09-25 06:17:38,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-25 06:17:38,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 263 transitions. [2020-09-25 06:17:38,823 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 263 transitions. Word has length 143 [2020-09-25 06:17:38,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:17:38,825 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 263 transitions. [2020-09-25 06:17:38,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:17:38,825 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 263 transitions. [2020-09-25 06:17:38,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 06:17:38,839 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:17:38,840 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 06:17:38,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:17:38,840 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:17:38,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:17:38,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1993028941, now seen corresponding path program 1 times [2020-09-25 06:17:38,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:17:38,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24620215] [2020-09-25 06:17:38,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:17:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:38,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:39,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:39,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:42,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:43,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:44,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:44,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 06:17:44,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:17:44,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5080 [2020-09-25 06:17:44,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:44,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:44,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:17:44,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 06:17:44,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:17:44,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:44,298 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:17:44,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:17:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:44,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:44,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:44,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:17:44,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:44,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 06:17:44,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:44,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:44,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:44,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:44,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:44,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:44,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:17:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:44,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:44,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:44,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:44,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:44,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:17:44,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:44,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:44,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:44,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:44,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:44,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:44,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:17:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:44,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:44,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:44,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:44,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:44,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:17:44,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:44,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:44,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:44,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:44,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:44,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:44,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:17:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:44,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:44,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:44,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:44,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:44,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:17:44,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:44,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:44,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:44,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:44,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:44,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:44,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:17:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:44,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:44,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:44,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:44,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:44,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:17:44,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:44,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:44,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:44,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:44,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:44,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:17:44,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 06:17:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:44,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:44,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:44,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:17:44,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:44,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:17:44,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:44,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:44,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:44,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 06:17:44,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:44,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:44,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:17:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:44,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:44,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:44,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:44,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:44,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:17:44,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:44,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:44,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:44,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:44,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:44,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:44,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:17:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:44,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:44,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:44,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:44,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:44,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:17:44,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:44,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:44,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:17:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:44,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:44,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 06:17:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:44,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:44,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:44,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:44,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:44,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:17:44,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:44,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:44,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:44,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:17:44,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:44,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:44,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:17:44,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24620215] [2020-09-25 06:17:44,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:17:44,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:17:44,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884434096] [2020-09-25 06:17:44,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:17:44,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:17:44,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:17:44,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:17:44,642 INFO L87 Difference]: Start difference. First operand 244 states and 263 transitions. Second operand 5 states. [2020-09-25 06:17:45,425 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:17:46,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:17:46,440 INFO L93 Difference]: Finished difference Result 396 states and 450 transitions. [2020-09-25 06:17:46,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:17:46,441 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2020-09-25 06:17:46,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:17:46,445 INFO L225 Difference]: With dead ends: 396 [2020-09-25 06:17:46,445 INFO L226 Difference]: Without dead ends: 292 [2020-09-25 06:17:46,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:17:46,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-09-25 06:17:46,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 234. [2020-09-25 06:17:46,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-25 06:17:46,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 250 transitions. [2020-09-25 06:17:46,507 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 250 transitions. Word has length 151 [2020-09-25 06:17:46,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:17:46,508 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 250 transitions. [2020-09-25 06:17:46,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:17:46,509 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 250 transitions. [2020-09-25 06:17:46,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 06:17:46,512 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:17:46,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:17:46,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:17:46,513 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:17:46,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:17:46,513 INFO L82 PathProgramCache]: Analyzing trace with hash 959835140, now seen corresponding path program 1 times [2020-09-25 06:17:46,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:17:46,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [708607381] [2020-09-25 06:17:46,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:17:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:46,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:46,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:47,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:49,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:49,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:51,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:51,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 06:17:51,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:17:51,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 06:17:51,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:51,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:51,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:17:51,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 06:17:51,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:17:51,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:17:51,946 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:17:51,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:17:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:51,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:52,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:52,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:17:52,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:52,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 06:17:52,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:52,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:52,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:52,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:52,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:52,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:52,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:17:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:52,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:52,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:52,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:52,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:52,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:17:52,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:52,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:52,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:52,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:52,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:52,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:52,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:17:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:52,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:52,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:52,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:52,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:52,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:17:52,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:52,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:52,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:52,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:52,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:52,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:52,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:17:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:52,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:52,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:52,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:52,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:52,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:17:52,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:52,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:52,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:52,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:52,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:52,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:52,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:17:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:52,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:52,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:52,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:52,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:52,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:17:52,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:52,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:52,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:52,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:52,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:52,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:52,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 06:17:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:52,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:52,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:52,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:17:52,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:52,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:17:52,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:52,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:52,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:17:52,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:17:52,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:17:52,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:52,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:17:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:52,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:52,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:52,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:52,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:52,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:17:52,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:52,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:17:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:52,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:17:52,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:52,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 06:17:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:52,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:52,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:52,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:52,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:52,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:17:52,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:52,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:52,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:52,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:17:52,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:52,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:52,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 06:17:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:52,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:52,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:52,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:52,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:52,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:17:52,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:52,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:52,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:52,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:17:52,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:52,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:52,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:17:52,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [708607381] [2020-09-25 06:17:52,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:17:52,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:17:52,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455691966] [2020-09-25 06:17:52,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:17:52,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:17:52,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:17:52,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:17:52,272 INFO L87 Difference]: Start difference. First operand 234 states and 250 transitions. Second operand 6 states. [2020-09-25 06:17:52,956 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:17:54,430 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:17:54,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:17:54,967 INFO L93 Difference]: Finished difference Result 514 states and 584 transitions. [2020-09-25 06:17:54,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 06:17:54,968 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2020-09-25 06:17:54,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:17:54,973 INFO L225 Difference]: With dead ends: 514 [2020-09-25 06:17:54,974 INFO L226 Difference]: Without dead ends: 390 [2020-09-25 06:17:54,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:17:54,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2020-09-25 06:17:55,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 331. [2020-09-25 06:17:55,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2020-09-25 06:17:55,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 357 transitions. [2020-09-25 06:17:55,018 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 357 transitions. Word has length 160 [2020-09-25 06:17:55,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:17:55,019 INFO L479 AbstractCegarLoop]: Abstraction has 331 states and 357 transitions. [2020-09-25 06:17:55,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:17:55,019 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 357 transitions. [2020-09-25 06:17:55,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-09-25 06:17:55,021 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:17:55,021 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:17:55,022 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:17:55,022 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:17:55,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:17:55,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1575421587, now seen corresponding path program 1 times [2020-09-25 06:17:55,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:17:55,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302760496] [2020-09-25 06:17:55,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:17:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:55,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:55,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:57,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:57,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:58,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:58,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:00,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:00,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-25 06:18:00,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:18:00,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 06:18:00,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:00,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:00,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:18:00,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 06:18:00,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 06:18:00,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:18:00,401 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:18:00,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:18:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:00,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:00,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:00,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:18:00,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:00,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 06:18:00,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:00,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:00,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:00,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:00,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:00,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:00,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:18:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:00,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:00,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:00,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:00,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:00,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:18:00,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:00,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:00,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:00,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:00,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:00,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:00,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:18:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:00,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:00,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:00,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:00,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:00,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:18:00,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:00,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:00,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:00,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:00,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:00,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:00,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:18:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:00,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:00,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:00,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:00,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:00,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:18:00,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:00,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:00,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:00,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:00,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:00,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:00,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:18:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:00,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:00,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:00,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:00,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:00,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:18:00,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:00,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:00,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:00,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:00,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:00,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:00,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 06:18:00,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:00,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:00,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:00,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:00,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:01,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:01,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:18:01,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:18:01,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 740 [2020-09-25 06:18:01,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:01,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:01,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:01,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:01,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:18:01,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:18:01,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:18:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:01,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:01,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:01,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:01,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:18:01,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:18:01,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 06:18:01,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:01,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:01,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:01,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:01,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 06:18:01,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:18:01,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:18:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:01,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:01,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:01,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:18:01,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:01,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:18:01,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:01,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:01,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:01,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:01,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:01,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:01,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:18:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:01,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:01,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:01,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:01,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:01,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:18:01,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:01,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:01,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:01,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:01,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:18:01,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:01,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 06:18:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:01,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:01,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:01,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:01,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:01,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:01,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:01,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:01,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:01,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:01,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:18:01,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:01,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 06:18:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:01,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:01,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:01,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:01,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:01,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:18:01,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:01,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:01,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:18:01,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:01,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:18:01,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:01,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:18:01,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1302760496] [2020-09-25 06:18:01,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:18:01,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:18:01,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474994734] [2020-09-25 06:18:01,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:18:01,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:18:01,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:18:01,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:18:01,519 INFO L87 Difference]: Start difference. First operand 331 states and 357 transitions. Second operand 9 states. [2020-09-25 06:18:02,045 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:18:03,602 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:18:03,920 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:18:04,256 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:18:05,125 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:18:05,490 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:18:05,812 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:18:06,142 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:18:06,448 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:18:06,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:18:06,567 INFO L93 Difference]: Finished difference Result 393 states and 439 transitions. [2020-09-25 06:18:06,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:18:06,568 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 184 [2020-09-25 06:18:06,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:18:06,571 INFO L225 Difference]: With dead ends: 393 [2020-09-25 06:18:06,571 INFO L226 Difference]: Without dead ends: 390 [2020-09-25 06:18:06,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 06:18:06,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2020-09-25 06:18:06,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 331. [2020-09-25 06:18:06,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2020-09-25 06:18:06,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 356 transitions. [2020-09-25 06:18:06,630 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 356 transitions. Word has length 184 [2020-09-25 06:18:06,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:18:06,633 INFO L479 AbstractCegarLoop]: Abstraction has 331 states and 356 transitions. [2020-09-25 06:18:06,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:18:06,633 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 356 transitions. [2020-09-25 06:18:06,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-25 06:18:06,636 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:18:06,636 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:18:06,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:18:06,637 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:18:06,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:18:06,637 INFO L82 PathProgramCache]: Analyzing trace with hash 714160235, now seen corresponding path program 1 times [2020-09-25 06:18:06,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:18:06,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [650159659] [2020-09-25 06:18:06,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:18:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:06,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking...