/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=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:00:22,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:00:22,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:00:22,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:00:22,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:00:22,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:00:22,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:00:22,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:00:22,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:00:22,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:00:22,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:00:22,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:00:22,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:00:22,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:00:22,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:00:22,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:00:22,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:00:22,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:00:22,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:00:22,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:00:22,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:00:22,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:00:22,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:00:22,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:00:22,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:00:22,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:00:22,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:00:22,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:00:22,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:00:22,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:00:22,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:00:22,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:00:22,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:00:22,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:00:22,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:00:22,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:00:22,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:00:22,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:00:22,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:00:22,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:00:22,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:00:22,875 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 04:00:22,908 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:00:22,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:00:22,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:00:22,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:00:22,910 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:00:22,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:00:22,910 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:00:22,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:00:22,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:00:22,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:00:22,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:00:22,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:00:22,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:00:22,912 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:00:22,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:00:22,912 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:00:22,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:00:22,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:00:22,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:00:22,913 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:00:22,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:00:22,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:00:22,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:00:22,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:00:22,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:00:22,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:00:22,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:00:22,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:00:22,915 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:00:22,915 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 04:00:23,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:00:23,428 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:00:23,432 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:00:23,434 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:00:23,435 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:00:23,436 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2020-09-25 04:00:23,511 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8fbd380a7/b122ac94e21f4701ab2c81b22e77be7b/FLAG3ce028039 [2020-09-25 04:00:24,088 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:00:24,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2020-09-25 04:00:24,115 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8fbd380a7/b122ac94e21f4701ab2c81b22e77be7b/FLAG3ce028039 [2020-09-25 04:00:24,347 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8fbd380a7/b122ac94e21f4701ab2c81b22e77be7b [2020-09-25 04:00:24,359 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:00:24,365 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:00:24,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:00:24,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:00:24,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:00:24,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:00:24" (1/1) ... [2020-09-25 04:00:24,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:24, skipping insertion in model container [2020-09-25 04:00:24,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:00:24" (1/1) ... [2020-09-25 04:00:24,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:00:24,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:00:24,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:00:24,891 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:00:24,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:00:25,007 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:00:25,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:25 WrapperNode [2020-09-25 04:00:25,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:00:25,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:00:25,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:00:25,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:00:25,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:25" (1/1) ... [2020-09-25 04:00:25,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:25" (1/1) ... [2020-09-25 04:00:25,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:25" (1/1) ... [2020-09-25 04:00:25,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:25" (1/1) ... [2020-09-25 04:00:25,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:25" (1/1) ... [2020-09-25 04:00:25,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:25" (1/1) ... [2020-09-25 04:00:25,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:25" (1/1) ... [2020-09-25 04:00:25,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:00:25,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:00:25,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:00:25,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:00:25,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:25" (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 04:00:25,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:00:25,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:00:25,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:00:25,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:00:25,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:00:25,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:00:25,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:00:25,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:00:25,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:00:25,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:00:25,238 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:00:25,238 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:00:25,238 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:00:25,239 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:00:25,239 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:00:25,240 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:00:25,240 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:00:25,240 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:00:25,240 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 04:00:25,241 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:00:25,241 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:00:25,242 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:00:25,242 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:00:25,242 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:00:25,244 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:00:25,244 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:00:25,245 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:00:25,245 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:00:25,245 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:00:25,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 04:00:25,245 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:00:25,245 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:00:25,245 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:00:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:00:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:00:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:00:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 04:00:25,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:00:25,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:00:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:00:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:00:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:00:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:00:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:00:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:00:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:00:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:00:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:00:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:00:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:00:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:00:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:00:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:00:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:00:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:00:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:00:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:00:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:00:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:00:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:00:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:00:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 04:00:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:00:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:00:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:00:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:00:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:00:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 04:00:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:00:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:00:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 04:00:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:00:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:00:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:00:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:00:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:00:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:00:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:00:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:00:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:00:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:00:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:00:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:00:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:00:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:00:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:00:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:00:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:00:26,440 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:00:26,441 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:00:26,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:00:26 BoogieIcfgContainer [2020-09-25 04:00:26,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:00:26,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:00:26,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:00:26,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:00:26,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:00:24" (1/3) ... [2020-09-25 04:00:26,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e97a635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:00:26, skipping insertion in model container [2020-09-25 04:00:26,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:25" (2/3) ... [2020-09-25 04:00:26,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e97a635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:00:26, skipping insertion in model container [2020-09-25 04:00:26,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:00:26" (3/3) ... [2020-09-25 04:00:26,457 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product33.cil.c [2020-09-25 04:00:26,468 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:00:26,480 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:00:26,502 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:00:26,533 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:00:26,534 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:00:26,534 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:00:26,534 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:00:26,534 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:00:26,534 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:00:26,535 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:00:26,535 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:00:26,560 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-09-25 04:00:26,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 04:00:26,578 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:00:26,579 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 04:00:26,580 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:00:26,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:00:26,588 INFO L82 PathProgramCache]: Analyzing trace with hash -955195086, now seen corresponding path program 1 times [2020-09-25 04:00:26,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:00:26,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [268197141] [2020-09-25 04:00:26,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:00:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:27,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:27,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:27,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:28,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:29,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:31,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:31,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 04:00:31,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:00:31,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 04:00:31,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:31,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:31,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:31,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 04:00:31,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:31,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:00:32,307 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:00:32,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:00:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:32,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:32,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:32,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:00:32,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:32,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 04:00:32,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:32,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:32,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:32,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:32,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:32,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:32,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:00:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:32,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:32,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:32,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:32,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:32,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:32,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:32,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:32,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:32,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:32,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:32,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:32,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:00:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:32,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:32,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:32,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:32,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:32,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:32,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:32,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:32,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:32,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:32,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:32,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:32,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:00:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:32,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:32,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:32,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:32,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:32,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:00:32,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:32,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:32,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:32,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:32,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:32,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:32,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:00:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:32,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:32,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:32,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:32,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:32,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:32,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:32,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:32,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:32,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:32,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:32,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:32,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 04:00:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:32,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:32,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:32,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:32,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:32,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:00:32,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:32,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:32,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:32,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:00:32,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:32,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:32,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:00:32,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:32,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:32,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:32,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:32,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:32,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:00:32,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:32,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:32,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:32,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:00:32,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:32,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:32,634 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 04:00:32,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [268197141] [2020-09-25 04:00:32,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:00:32,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:00:32,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659343192] [2020-09-25 04:00:32,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:00:32,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:00:32,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:00:32,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:00:32,671 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-09-25 04:00:33,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:00:33,849 INFO L93 Difference]: Finished difference Result 419 states and 501 transitions. [2020-09-25 04:00:33,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:00:33,852 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 04:00:33,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:00:33,875 INFO L225 Difference]: With dead ends: 419 [2020-09-25 04:00:33,875 INFO L226 Difference]: Without dead ends: 266 [2020-09-25 04:00:33,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:00:33,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-09-25 04:00:34,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 227. [2020-09-25 04:00:34,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-09-25 04:00:34,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 245 transitions. [2020-09-25 04:00:34,040 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 245 transitions. Word has length 142 [2020-09-25 04:00:34,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:00:34,041 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 245 transitions. [2020-09-25 04:00:34,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:00:34,042 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 245 transitions. [2020-09-25 04:00:34,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 04:00:34,047 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:00:34,047 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 04:00:34,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:00:34,048 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:00:34,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:00:34,048 INFO L82 PathProgramCache]: Analyzing trace with hash -853880488, now seen corresponding path program 1 times [2020-09-25 04:00:34,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:00:34,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264997833] [2020-09-25 04:00:34,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:00:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:34,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:34,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:34,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:35,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:35,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:39,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:39,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 04:00:39,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:00:39,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 04:00:39,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:39,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:39,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:00:39,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 04:00:39,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 04:00:39,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:39,514 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:00:39,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:00:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:39,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:39,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:39,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:00:39,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:39,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-25 04:00:39,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:39,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:39,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:00:39,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:39,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 04:00:39,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:39,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:00:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:39,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:39,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:39,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:39,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:39,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:00:39,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:39,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:39,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:00:39,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:39,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:00:39,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:39,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:00:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:39,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:39,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:39,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:39,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:39,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:00:39,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:39,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:39,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:00:39,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:39,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:00:39,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:39,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:00:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:39,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:39,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:39,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:39,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:39,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:00:39,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:39,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:39,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:00:39,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:39,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:00:39,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:39,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:00:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:39,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:39,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:39,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:39,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:39,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:00:39,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:39,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:39,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:00:39,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:39,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:00:39,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:39,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:00:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:39,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:39,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:39,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:39,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:39,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:39,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:39,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:39,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:39,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:00:39,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:39,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:39,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:00:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:39,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:39,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:39,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:39,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:39,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:39,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:39,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:39,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:39,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:00:39,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:39,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:39,893 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 04:00:39,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264997833] [2020-09-25 04:00:39,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:00:39,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:00:39,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921361803] [2020-09-25 04:00:39,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:00:39,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:00:39,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:00:39,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:00:39,898 INFO L87 Difference]: Start difference. First operand 227 states and 245 transitions. Second operand 4 states. [2020-09-25 04:00:40,455 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:00:41,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:00:41,380 INFO L93 Difference]: Finished difference Result 383 states and 442 transitions. [2020-09-25 04:00:41,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:00:41,388 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 04:00:41,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:00:41,392 INFO L225 Difference]: With dead ends: 383 [2020-09-25 04:00:41,392 INFO L226 Difference]: Without dead ends: 266 [2020-09-25 04:00:41,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:00:41,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-09-25 04:00:41,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 227. [2020-09-25 04:00:41,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-09-25 04:00:41,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 244 transitions. [2020-09-25 04:00:41,439 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 244 transitions. Word has length 143 [2020-09-25 04:00:41,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:00:41,440 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 244 transitions. [2020-09-25 04:00:41,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:00:41,440 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 244 transitions. [2020-09-25 04:00:41,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 04:00:41,445 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:00:41,445 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 04:00:41,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:00:41,445 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:00:41,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:00:41,448 INFO L82 PathProgramCache]: Analyzing trace with hash 982393685, now seen corresponding path program 1 times [2020-09-25 04:00:41,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:00:41,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1273974410] [2020-09-25 04:00:41,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:00:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:41,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:41,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:41,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:44,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:46,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:46,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:46,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:46,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 04:00:46,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:00:46,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 04:00:46,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:46,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:46,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:00:46,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 04:00:46,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:00:46,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:46,939 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:00:46,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:00:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:46,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:47,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:47,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:00:47,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:47,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 04:00:47,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:47,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:47,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:47,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:47,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:47,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:00:47,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:00:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:47,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:47,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:47,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:47,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:47,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:47,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:47,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:47,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:47,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:47,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:47,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:47,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:00:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:47,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:47,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:47,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:47,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:47,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:47,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:47,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:47,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:47,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:47,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:47,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:47,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:00:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:47,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:47,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:47,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:47,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:47,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:00:47,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:47,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:47,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:47,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:47,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:47,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:47,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:00:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:47,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:47,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:47,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:47,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:47,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:00:47,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:47,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:47,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:47,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:47,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:47,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:00:47,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 04:00:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:47,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:47,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:47,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:00:47,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:47,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:47,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:47,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:47,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:47,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:00:47,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:47,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:00:47,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:00:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:47,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:47,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:47,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:47,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:47,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:00:47,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:47,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:47,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:47,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:47,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:47,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:47,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 04:00:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:47,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:47,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:47,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:47,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:47,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:47,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:47,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:47,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:47,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:00:47,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:47,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:47,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 04:00:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:47,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:47,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:47,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:47,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:47,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:47,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:47,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:47,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:47,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:00:47,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:47,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:47,159 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 04:00:47,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1273974410] [2020-09-25 04:00:47,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:00:47,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:00:47,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736580693] [2020-09-25 04:00:47,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:00:47,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:00:47,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:00:47,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:00:47,162 INFO L87 Difference]: Start difference. First operand 227 states and 244 transitions. Second operand 5 states. [2020-09-25 04:00:47,776 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:00:48,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:00:48,682 INFO L93 Difference]: Finished difference Result 360 states and 410 transitions. [2020-09-25 04:00:48,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:00:48,682 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2020-09-25 04:00:48,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:00:48,685 INFO L225 Difference]: With dead ends: 360 [2020-09-25 04:00:48,686 INFO L226 Difference]: Without dead ends: 273 [2020-09-25 04:00:48,687 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 04:00:48,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-09-25 04:00:48,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 217. [2020-09-25 04:00:48,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-25 04:00:48,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 231 transitions. [2020-09-25 04:00:48,718 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 231 transitions. Word has length 151 [2020-09-25 04:00:48,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:00:48,718 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 231 transitions. [2020-09-25 04:00:48,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:00:48,718 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 231 transitions. [2020-09-25 04:00:48,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 04:00:48,721 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:00:48,721 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 04:00:48,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:00:48,721 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:00:48,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:00:48,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1355593621, now seen corresponding path program 1 times [2020-09-25 04:00:48,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:00:48,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1233361005] [2020-09-25 04:00:48,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:00:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:48,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:48,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:49,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:51,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:51,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:53,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:53,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 04:00:53,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:00:53,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-25 04:00:53,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:53,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:53,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:00:53,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 04:00:53,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:00:53,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:54,089 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:00:54,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:00:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:54,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:54,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:54,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:00:54,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:54,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 04:00:54,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:54,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:54,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:54,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:54,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:54,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:54,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:00:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:54,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:54,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:54,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:54,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:54,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:54,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:54,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:54,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:54,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:54,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:54,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:54,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:00:54,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:54,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:54,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:54,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:54,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:54,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:54,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:54,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:54,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:54,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:54,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:54,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:54,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:00:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:54,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:54,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:54,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:54,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:54,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:00:54,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:54,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:54,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:54,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:54,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:54,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:00:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:54,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:54,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:54,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:54,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:54,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:54,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:54,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:54,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:54,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:54,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:54,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:54,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 04:00:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:54,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:54,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:54,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:00:54,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:54,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:00:54,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:54,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:54,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:00:54,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:00:54,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:00:54,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:54,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:00:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:54,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:54,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:54,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:54,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:54,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:00:54,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:54,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:54,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:00:54,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:54,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:00:54,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:54,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 04:00:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:54,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:54,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:54,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:54,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:54,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:00:54,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:54,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:54,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:54,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:00:54,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:54,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:54,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 04:00:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:54,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:54,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:54,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:54,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:54,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:54,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:54,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:54,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:54,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:00:54,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:54,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:54,518 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 04:00:54,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1233361005] [2020-09-25 04:00:54,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:00:54,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:00:54,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545387216] [2020-09-25 04:00:54,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:00:54,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:00:54,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:00:54,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:00:54,523 INFO L87 Difference]: Start difference. First operand 217 states and 231 transitions. Second operand 7 states. [2020-09-25 04:00:55,242 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:00:56,817 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:00:57,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:00:57,330 INFO L93 Difference]: Finished difference Result 478 states and 544 transitions. [2020-09-25 04:00:57,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:00:57,331 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2020-09-25 04:00:57,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:00:57,336 INFO L225 Difference]: With dead ends: 478 [2020-09-25 04:00:57,337 INFO L226 Difference]: Without dead ends: 371 [2020-09-25 04:00:57,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:00:57,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-09-25 04:00:57,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 312. [2020-09-25 04:00:57,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2020-09-25 04:00:57,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 336 transitions. [2020-09-25 04:00:57,400 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 336 transitions. Word has length 160 [2020-09-25 04:00:57,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:00:57,401 INFO L479 AbstractCegarLoop]: Abstraction has 312 states and 336 transitions. [2020-09-25 04:00:57,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:00:57,401 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 336 transitions. [2020-09-25 04:00:57,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-09-25 04:00:57,404 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:00:57,404 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 04:00:57,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:00:57,404 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:00:57,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:00:57,405 INFO L82 PathProgramCache]: Analyzing trace with hash 2011013837, now seen corresponding path program 1 times [2020-09-25 04:00:57,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:00:57,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886347425] [2020-09-25 04:00:57,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:00:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:57,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:57,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:59,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:00,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:00,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:00,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:02,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:02,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-25 04:01:02,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:01:02,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 04:01:02,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:02,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:02,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:01:02,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 04:01:02,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 04:01:02,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:02,881 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:01:02,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:01:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:02,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:02,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:02,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:01:02,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:02,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 04:01:02,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:02,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:02,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:02,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:02,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:02,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:03,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:01:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:03,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:03,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:03,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:03,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:03,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:01:03,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:03,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:03,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:03,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:03,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:03,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:03,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:01:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:03,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:03,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:03,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:03,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:03,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:01:03,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:03,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:03,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:03,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:03,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:03,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:03,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:01:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:03,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:03,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:03,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:03,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:03,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:01:03,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:03,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:03,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:03,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:03,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:03,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:03,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:01:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:03,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:03,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:03,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:03,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:03,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:03,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:03,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:03,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:03,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:03,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:03,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:03,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 04:01:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:03,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:03,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:03,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:03,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:03,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 04:01:03,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:01:03,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 597 [2020-09-25 04:01:03,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:03,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:03,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:01:03,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:03,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:01:03,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:03,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:01:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:03,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:03,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:03,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:03,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:01:03,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:01:03,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 04:01:03,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:03,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:03,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:01:03,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:03,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 04:01:03,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:03,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:01:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:03,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:03,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:03,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:01:03,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:03,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:01:03,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:03,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:03,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:03,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:03,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:03,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:03,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:01:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:03,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:03,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:03,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:03,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:03,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:03,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:03,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:03,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:01:03,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:03,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:01:03,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:03,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 04:01:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:03,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:03,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:03,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:03,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:03,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:01:03,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:03,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:03,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:01:03,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:03,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:01:03,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:03,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 04:01:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:03,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:03,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:03,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:03,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:03,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:01:03,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:03,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:03,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:01:03,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:03,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:01:03,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:03,941 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 04:01:03,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886347425] [2020-09-25 04:01:03,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:01:03,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:01:03,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966556506] [2020-09-25 04:01:03,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:01:03,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:01:03,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:01:03,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:01:03,944 INFO L87 Difference]: Start difference. First operand 312 states and 336 transitions. Second operand 9 states. [2020-09-25 04:01:04,458 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:01:05,977 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:01:06,279 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:01:06,628 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:01:06,953 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:01:07,293 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:01:07,655 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:01:07,967 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:01:08,297 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:01:08,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:01:08,889 INFO L93 Difference]: Finished difference Result 374 states and 418 transitions. [2020-09-25 04:01:08,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 04:01:08,890 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 184 [2020-09-25 04:01:08,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:01:08,894 INFO L225 Difference]: With dead ends: 374 [2020-09-25 04:01:08,895 INFO L226 Difference]: Without dead ends: 371 [2020-09-25 04:01:08,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 04:01:08,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-09-25 04:01:08,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 312. [2020-09-25 04:01:08,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2020-09-25 04:01:08,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 335 transitions. [2020-09-25 04:01:08,929 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 335 transitions. Word has length 184 [2020-09-25 04:01:08,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:01:08,929 INFO L479 AbstractCegarLoop]: Abstraction has 312 states and 335 transitions. [2020-09-25 04:01:08,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:01:08,930 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 335 transitions. [2020-09-25 04:01:08,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-25 04:01:08,932 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:01:08,932 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] [2020-09-25 04:01:08,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:01:08,933 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:01:08,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:01:08,933 INFO L82 PathProgramCache]: Analyzing trace with hash -888577938, now seen corresponding path program 1 times [2020-09-25 04:01:08,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:01:08,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041871823] [2020-09-25 04:01:08,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:01:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:09,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:09,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking...