/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:36:31,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:36:31,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:36:31,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:36:31,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:36:31,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:36:31,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:36:31,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:36:31,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:36:31,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:36:31,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:36:31,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:36:31,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:36:31,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:36:31,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:36:31,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:36:31,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:36:31,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:36:31,599 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:36:31,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:36:31,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:36:31,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:36:31,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:36:31,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:36:31,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:36:31,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:36:31,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:36:31,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:36:31,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:36:31,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:36:31,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:36:31,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:36:31,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:36:31,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:36:31,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:36:31,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:36:31,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:36:31,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:36:31,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:36:31,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:36:31,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:36:31,624 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:36:31,672 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:36:31,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:36:31,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:36:31,675 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:36:31,675 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:36:31,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:36:31,675 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:36:31,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:36:31,676 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:36:31,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:36:31,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:36:31,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:36:31,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:36:31,678 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:36:31,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:36:31,678 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:36:31,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:36:31,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:36:31,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:36:31,679 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:36:31,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:36:31,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:36:31,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:36:31,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:36:31,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:36:31,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:36:31,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:36:31,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:36:31,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:36:31,681 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:36:32,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:36:32,178 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:36:32,185 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:36:32,187 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:36:32,187 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:36:32,189 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c [2020-09-25 07:36:32,279 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a1ba1105/a9ad1a597a77436f90d0b4fa1981c186/FLAG8d5f22cbb [2020-09-25 07:36:32,908 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:36:32,909 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c [2020-09-25 07:36:32,924 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a1ba1105/a9ad1a597a77436f90d0b4fa1981c186/FLAG8d5f22cbb [2020-09-25 07:36:33,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a1ba1105/a9ad1a597a77436f90d0b4fa1981c186 [2020-09-25 07:36:33,191 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:36:33,198 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:36:33,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:36:33,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:36:33,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:36:33,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:36:33" (1/1) ... [2020-09-25 07:36:33,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28b610eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:33, skipping insertion in model container [2020-09-25 07:36:33,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:36:33" (1/1) ... [2020-09-25 07:36:33,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:36:33,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:36:33,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:36:33,665 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:36:33,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:36:33,909 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:36:33,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:33 WrapperNode [2020-09-25 07:36:33,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:36:33,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:36:33,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:36:33,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:36:33,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:33" (1/1) ... [2020-09-25 07:36:33,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:33" (1/1) ... [2020-09-25 07:36:33,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:33" (1/1) ... [2020-09-25 07:36:33,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:33" (1/1) ... [2020-09-25 07:36:33,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:33" (1/1) ... [2020-09-25 07:36:34,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:33" (1/1) ... [2020-09-25 07:36:34,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:33" (1/1) ... [2020-09-25 07:36:34,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:36:34,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:36:34,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:36:34,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:36:34,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:36:34,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:36:34,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:36:34,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:36:34,143 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:36:34,143 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:36:34,143 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:36:34,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:36:34,144 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:36:34,144 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:36:34,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:36:34,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 07:36:34,145 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:36:34,145 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:36:34,145 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:36:34,145 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:36:34,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:36:34,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:36:34,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:36:34,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:36:34,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:36:34,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:36:34,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:36:34,147 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:36:34,147 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:36:34,147 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:36:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:36:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 07:36:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:36:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:36:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:36:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:36:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:36:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:36:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:36:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:36:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:36:34,150 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:36:34,150 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:36:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:36:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:36:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:36:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:36:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:36:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:36:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:36:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:36:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:36:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:36:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:36:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:36:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:36:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 07:36:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:36:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:36:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:36:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:36:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:36:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:36:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:36:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:36:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:36:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:36:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:36:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:36:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:36:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:36:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:36:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:36:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:36:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:36:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:36:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:36:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:36:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:36:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:36:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:36:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:36:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:36:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:36:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:36:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:36:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 07:36:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:36:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:36:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:36:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:36:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:36:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:36:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:36:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:36:35,263 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:36:35,264 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:36:35,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:36:35 BoogieIcfgContainer [2020-09-25 07:36:35,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:36:35,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:36:35,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:36:35,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:36:35,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:36:33" (1/3) ... [2020-09-25 07:36:35,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45fa4b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:36:35, skipping insertion in model container [2020-09-25 07:36:35,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:33" (2/3) ... [2020-09-25 07:36:35,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45fa4b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:36:35, skipping insertion in model container [2020-09-25 07:36:35,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:36:35" (3/3) ... [2020-09-25 07:36:35,282 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product41.cil.c [2020-09-25 07:36:35,294 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:36:35,306 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:36:35,330 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:36:35,364 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:36:35,364 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:36:35,364 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:36:35,364 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:36:35,364 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:36:35,364 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:36:35,364 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:36:35,365 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:36:35,395 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states. [2020-09-25 07:36:35,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 07:36:35,411 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:36:35,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:36:35,413 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:36:35,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:36:35,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1993009160, now seen corresponding path program 1 times [2020-09-25 07:36:35,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:36:35,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857938276] [2020-09-25 07:36:35,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:36:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:35,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:36,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:36,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:37,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:38,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:40,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:40,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 07:36:40,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:36:40,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 07:36:40,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:40,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:40,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:40,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:36:40,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:40,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 07:36:41,258 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:36:41,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:36:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:41,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:41,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:41,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:36:41,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:41,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 07:36:41,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:41,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:41,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:41,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:41,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:41,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:41,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:36:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:41,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:41,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:41,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:41,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:41,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:36:41,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:41,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:41,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:41,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:41,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:41,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:36:41,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:36:41,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:41,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:41,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:41,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:41,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:41,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:36:41,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:41,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:41,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:41,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:41,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:41,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:41,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:36:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:41,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:41,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:41,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:41,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:41,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:36:41,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:41,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:41,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:41,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:41,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:41,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:41,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:36:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:41,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:41,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:41,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:41,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:41,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:36:41,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:41,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:41,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:41,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:41,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:41,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:41,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:36:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:41,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:41,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:41,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:41,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:41,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:36:41,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:41,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:41,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:41,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:36:41,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:41,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:41,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:36:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:41,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:41,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:41,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:41,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:41,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:36:41,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:41,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:41,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:41,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:36:41,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:41,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:41,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:36:41,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857938276] [2020-09-25 07:36:41,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:36:41,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:36:41,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129522752] [2020-09-25 07:36:41,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:36:41,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:36:41,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:36:41,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:36:41,688 INFO L87 Difference]: Start difference. First operand 300 states. Second operand 3 states. [2020-09-25 07:36:43,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:36:43,036 INFO L93 Difference]: Finished difference Result 465 states and 549 transitions. [2020-09-25 07:36:43,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:36:43,038 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 07:36:43,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:36:43,060 INFO L225 Difference]: With dead ends: 465 [2020-09-25 07:36:43,060 INFO L226 Difference]: Without dead ends: 290 [2020-09-25 07:36:43,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:36:43,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-25 07:36:43,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 249. [2020-09-25 07:36:43,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 07:36:43,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 268 transitions. [2020-09-25 07:36:43,233 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 268 transitions. Word has length 142 [2020-09-25 07:36:43,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:36:43,234 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 268 transitions. [2020-09-25 07:36:43,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:36:43,234 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 268 transitions. [2020-09-25 07:36:43,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 07:36:43,239 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:36:43,239 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:36:43,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:36:43,240 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:36:43,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:36:43,240 INFO L82 PathProgramCache]: Analyzing trace with hash -534856304, now seen corresponding path program 1 times [2020-09-25 07:36:43,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:36:43,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1130304305] [2020-09-25 07:36:43,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:36:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:43,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:43,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:43,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:44,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:48,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:48,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 07:36:48,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:36:48,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 07:36:48,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:48,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:48,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:36:48,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 07:36:48,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 07:36:48,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:48,627 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:36:48,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:36:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:48,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:48,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:48,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:36:48,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:48,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-25 07:36:48,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:48,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:48,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:36:48,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:48,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 07:36:48,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:48,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:36:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:48,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:48,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:48,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:48,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:48,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:36:48,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:48,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:48,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:36:48,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:48,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:36:48,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:48,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:36:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:48,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:48,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:48,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:48,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:48,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:36:48,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:48,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:48,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:36:48,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:48,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:36:48,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:48,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:36:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:48,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:49,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:49,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:49,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:49,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:36:49,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:49,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:49,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:36:49,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:49,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:36:49,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:49,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:36:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:49,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:49,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:49,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:49,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:49,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:36:49,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:49,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:49,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:36:49,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:49,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:36:49,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:49,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:36:49,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:49,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:49,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:49,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:49,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:49,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:36:49,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:49,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:49,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:49,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:36:49,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:49,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:49,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:36:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:49,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:49,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:49,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:49,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:49,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:36:49,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:49,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:49,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:49,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:36:49,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:49,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:49,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:36:49,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1130304305] [2020-09-25 07:36:49,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:36:49,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:36:49,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882495783] [2020-09-25 07:36:49,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:36:49,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:36:49,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:36:49,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:36:49,059 INFO L87 Difference]: Start difference. First operand 249 states and 268 transitions. Second operand 4 states. [2020-09-25 07:36:49,530 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:36:50,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:36:50,429 INFO L93 Difference]: Finished difference Result 429 states and 490 transitions. [2020-09-25 07:36:50,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:36:50,430 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 07:36:50,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:36:50,435 INFO L225 Difference]: With dead ends: 429 [2020-09-25 07:36:50,435 INFO L226 Difference]: Without dead ends: 290 [2020-09-25 07:36:50,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:36:50,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-25 07:36:50,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 249. [2020-09-25 07:36:50,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 07:36:50,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 267 transitions. [2020-09-25 07:36:50,484 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 267 transitions. Word has length 143 [2020-09-25 07:36:50,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:36:50,485 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 267 transitions. [2020-09-25 07:36:50,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:36:50,485 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 267 transitions. [2020-09-25 07:36:50,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 07:36:50,488 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:36:50,488 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 07:36:50,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:36:50,488 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:36:50,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:36:50,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1090071671, now seen corresponding path program 1 times [2020-09-25 07:36:50,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:36:50,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680801297] [2020-09-25 07:36:50,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:36:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:50,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:50,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:50,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:54,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:55,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:55,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 07:36:55,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:36:55,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 07:36:55,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:55,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:55,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:36:55,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:36:55,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:36:55,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:55,811 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:36:55,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:36:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:55,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:55,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:55,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:36:55,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:55,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 07:36:55,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:55,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:55,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:55,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:55,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:55,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:55,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:36:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:55,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:55,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:55,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:55,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:55,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:36:55,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:55,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:55,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:55,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:55,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:55,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:55,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:36:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:55,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:55,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:55,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:55,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:55,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:36:55,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:55,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:55,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:55,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:55,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:55,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:55,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:36:55,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:55,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:55,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:55,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:55,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:55,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:36:55,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:55,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:55,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:55,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:55,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:55,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:55,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:36:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:55,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:55,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:55,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:55,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:55,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:36:55,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:55,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:55,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:55,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:36:55,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 07:36:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:55,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:55,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:55,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:36:55,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:55,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:36:55,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:55,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:55,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:55,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 07:36:55,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:55,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:55,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:36:55,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:55,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:55,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:55,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:55,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:55,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:36:55,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:55,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:55,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:55,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:36:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:56,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:56,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:56,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:56,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:56,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:36:56,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:56,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:56,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:56,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:36:56,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:56,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:56,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 07:36:56,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:56,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:56,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:56,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:56,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:56,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:36:56,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:56,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:56,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:56,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:36:56,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:56,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:56,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:36:56,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680801297] [2020-09-25 07:36:56,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:36:56,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:36:56,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592718586] [2020-09-25 07:36:56,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:36:56,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:36:56,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:36:56,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:36:56,038 INFO L87 Difference]: Start difference. First operand 249 states and 267 transitions. Second operand 5 states. [2020-09-25 07:36:56,709 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:36:57,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:36:57,879 INFO L93 Difference]: Finished difference Result 406 states and 458 transitions. [2020-09-25 07:36:57,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:36:57,880 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2020-09-25 07:36:57,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:36:57,883 INFO L225 Difference]: With dead ends: 406 [2020-09-25 07:36:57,883 INFO L226 Difference]: Without dead ends: 297 [2020-09-25 07:36:57,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:36:57,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-09-25 07:36:57,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 239. [2020-09-25 07:36:57,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-25 07:36:57,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 254 transitions. [2020-09-25 07:36:57,921 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 254 transitions. Word has length 151 [2020-09-25 07:36:57,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:36:57,922 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 254 transitions. [2020-09-25 07:36:57,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:36:57,922 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 254 transitions. [2020-09-25 07:36:57,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 07:36:57,924 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:36:57,924 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 07:36:57,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:36:57,925 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:36:57,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:36:57,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1380723004, now seen corresponding path program 1 times [2020-09-25 07:36:57,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:36:57,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [884991774] [2020-09-25 07:36:57,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:36:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:58,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:58,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:59,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:00,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:01,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:02,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:02,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 07:37:02,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:37:02,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 07:37:02,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:02,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:02,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:37:02,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:37:02,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:37:02,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:03,338 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:37:03,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:37:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:03,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:03,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:03,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:37:03,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:03,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 07:37:03,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:03,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:03,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:03,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:03,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:03,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:03,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:37:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:03,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:03,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:03,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:03,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:03,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:03,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:03,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:03,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:03,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:03,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:03,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:03,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:37:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:03,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:03,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:03,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:03,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:03,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:03,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:03,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:03,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:03,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:03,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:03,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:03,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:37:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:03,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:03,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:03,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:03,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:03,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:37:03,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:03,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:03,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:03,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:03,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:03,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:03,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:37:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:03,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:03,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:03,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:03,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:03,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:03,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:03,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:03,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:03,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:03,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:03,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:03,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 07:37:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:03,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:03,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:03,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:37:03,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:03,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:37:03,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:03,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:03,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:37:03,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:37:03,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:37:03,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:03,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:37:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:03,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:03,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:03,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:03,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:03,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:37:03,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:03,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:03,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:03,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:03,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:37:03,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:03,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 07:37:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:03,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:03,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:03,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:03,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:03,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:37:03,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:03,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:03,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:03,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:03,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:03,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:03,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 07:37:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:03,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:03,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:03,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:03,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:03,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:37:03,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:03,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:03,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:03,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:37:03,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:03,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 07:37:03,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:37:03,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [884991774] [2020-09-25 07:37:03,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:37:03,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:37:03,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868866876] [2020-09-25 07:37:03,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:37:03,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:37:03,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:37:03,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:37:03,759 INFO L87 Difference]: Start difference. First operand 239 states and 254 transitions. Second operand 7 states. [2020-09-25 07:37:04,473 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:37:06,108 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:37:06,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:37:06,636 INFO L93 Difference]: Finished difference Result 524 states and 592 transitions. [2020-09-25 07:37:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 07:37:06,637 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2020-09-25 07:37:06,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:37:06,642 INFO L225 Difference]: With dead ends: 524 [2020-09-25 07:37:06,642 INFO L226 Difference]: Without dead ends: 395 [2020-09-25 07:37:06,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:37:06,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-09-25 07:37:06,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 336. [2020-09-25 07:37:06,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-09-25 07:37:06,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 361 transitions. [2020-09-25 07:37:06,696 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 361 transitions. Word has length 160 [2020-09-25 07:37:06,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:37:06,696 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 361 transitions. [2020-09-25 07:37:06,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:37:06,697 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 361 transitions. [2020-09-25 07:37:06,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-09-25 07:37:06,699 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:06,699 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 07:37:06,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:37:06,700 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:06,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:06,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1083295401, now seen corresponding path program 1 times [2020-09-25 07:37:06,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:06,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [742461365] [2020-09-25 07:37:06,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:06,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:07,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:07,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:07,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:11,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:11,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-25 07:37:11,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:37:11,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 07:37:11,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:11,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:11,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:37:11,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:37:11,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 07:37:11,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:12,118 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:37:12,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:37:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:12,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:12,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:12,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:37:12,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:12,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 07:37:12,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:12,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:12,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:12,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:12,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:12,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:12,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:37:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:12,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:12,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:12,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:12,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:12,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:12,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:12,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:12,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:12,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:12,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:12,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:12,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:37:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:12,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:12,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:12,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:12,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:12,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:12,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:12,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:12,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:12,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:12,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:12,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:12,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:37:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:12,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:12,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:12,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:12,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:12,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:37:12,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:12,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:12,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:12,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:12,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:12,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:37:12,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:37:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:12,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:12,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:12,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:12,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:12,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:37:12,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:12,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:12,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:12,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:12,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:12,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:12,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 07:37:12,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:12,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:12,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:12,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:12,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:37:12,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:37:12,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 07:37:12,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:12,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:12,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:12,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:12,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:37:12,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:12,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:37:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:12,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:12,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:12,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:37:12,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:12,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:37:12,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:12,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:12,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:12,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:12,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:37:12,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:12,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:37:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:12,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:12,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:12,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:37:12,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:12,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:37:12,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:12,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:12,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:37:12,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:12,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:37:12,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:12,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:37:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:12,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:12,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:12,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:37:12,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:12,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:37:12,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:12,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:12,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:12,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:12,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:37:12,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:12,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 07:37:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:12,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:12,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:12,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:12,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:12,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:37:12,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:12,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:12,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:37:12,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:12,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:37:12,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:12,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 07:37:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:12,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:12,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:37:12,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:37:12,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:37:12,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:37:12,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:37:12,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:37:12,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:37:12,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:37:12,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:37:12,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:37:12,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:37:12,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [742461365] [2020-09-25 07:37:12,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:37:12,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:37:12,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606811884] [2020-09-25 07:37:12,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:37:12,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:37:12,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:37:12,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:37:12,551 INFO L87 Difference]: Start difference. First operand 336 states and 361 transitions. Second operand 9 states. [2020-09-25 07:37:13,232 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:37:14,742 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:37:15,107 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:37:15,450 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:37:15,797 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 07:37:16,112 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:37:16,550 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:37:16,854 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:37:17,223 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:37:17,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:37:17,808 INFO L93 Difference]: Finished difference Result 398 states and 443 transitions. [2020-09-25 07:37:17,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:37:17,809 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 184 [2020-09-25 07:37:17,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:37:17,813 INFO L225 Difference]: With dead ends: 398 [2020-09-25 07:37:17,813 INFO L226 Difference]: Without dead ends: 395 [2020-09-25 07:37:17,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 07:37:17,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-09-25 07:37:17,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 336. [2020-09-25 07:37:17,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-09-25 07:37:17,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 360 transitions. [2020-09-25 07:37:17,854 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 360 transitions. Word has length 184 [2020-09-25 07:37:17,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:37:17,855 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 360 transitions. [2020-09-25 07:37:17,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:37:17,855 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 360 transitions. [2020-09-25 07:37:17,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-25 07:37:17,858 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:37:17,858 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:37:17,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:37:17,858 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:37:17,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:37:17,859 INFO L82 PathProgramCache]: Analyzing trace with hash 716052031, now seen corresponding path program 1 times [2020-09-25 07:37:17,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:37:17,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242386017] [2020-09-25 07:37:17,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:37:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:37:17,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:37:18,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking...