/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:26:16,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:26:16,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:26:16,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:26:16,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:26:16,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:26:16,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:26:16,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:26:16,442 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:26:16,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:26:16,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:26:16,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:26:16,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:26:16,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:26:16,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:26:16,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:26:16,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:26:16,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:26:16,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:26:16,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:26:16,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:26:16,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:26:16,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:26:16,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:26:16,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:26:16,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:26:16,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:26:16,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:26:16,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:26:16,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:26:16,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:26:16,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:26:16,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:26:16,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:26:16,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:26:16,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:26:16,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:26:16,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:26:16,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:26:16,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:26:16,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:26:16,508 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:26:16,553 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:26:16,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:26:16,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:26:16,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:26:16,556 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:26:16,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:26:16,557 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:26:16,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:26:16,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:26:16,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:26:16,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:26:16,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:26:16,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:26:16,559 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:26:16,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:26:16,560 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:26:16,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:26:16,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:26:16,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:26:16,560 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:26:16,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:26:16,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:26:16,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:26:16,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:26:16,565 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:26:16,565 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:26:16,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:26:16,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:26:16,566 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:26:16,566 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:26:17,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:26:17,022 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:26:17,029 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:26:17,031 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:26:17,032 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:26:17,033 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-09-25 07:26:17,109 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16fadc074/3968a900afe54c27bd7d2cd528f873cc/FLAG02ebb1598 [2020-09-25 07:26:17,773 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:26:17,774 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-09-25 07:26:17,789 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16fadc074/3968a900afe54c27bd7d2cd528f873cc/FLAG02ebb1598 [2020-09-25 07:26:17,994 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16fadc074/3968a900afe54c27bd7d2cd528f873cc [2020-09-25 07:26:18,009 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:26:18,015 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:26:18,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:26:18,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:26:18,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:26:18,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:26:17" (1/1) ... [2020-09-25 07:26:18,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74bf58bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:18, skipping insertion in model container [2020-09-25 07:26:18,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:26:17" (1/1) ... [2020-09-25 07:26:18,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:26:18,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:26:18,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:26:18,627 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:26:18,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:26:18,791 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:26:18,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:18 WrapperNode [2020-09-25 07:26:18,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:26:18,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:26:18,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:26:18,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:26:18,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:18" (1/1) ... [2020-09-25 07:26:18,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:18" (1/1) ... [2020-09-25 07:26:18,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:18" (1/1) ... [2020-09-25 07:26:18,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:18" (1/1) ... [2020-09-25 07:26:18,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:18" (1/1) ... [2020-09-25 07:26:18,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:18" (1/1) ... [2020-09-25 07:26:18,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:18" (1/1) ... [2020-09-25 07:26:18,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:26:18,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:26:18,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:26:18,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:26:18,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:26:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:26:18,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:26:18,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:26:18,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:26:18,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:26:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:26:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:26:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:26:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:26:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:26:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:26:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:26:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:26:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:26:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 07:26:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:26:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:26:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:26:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:26:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:26:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:26:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:26:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:26:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:26:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:26:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:26:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:26:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:26:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:26:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:26:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:26:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:26:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:26:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:26:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:26:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:26:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:26:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:26:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:26:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:26:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:26:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:26:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:26:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:26:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:26:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:26:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:26:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:26:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:26:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:26:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:26:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:26:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:26:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:26:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:26:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:26:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:26:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:26:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:26:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:26:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:26:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:26:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:26:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:26:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:26:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:26:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:26:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:26:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:26:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:26:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:26:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:26:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:26:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:26:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 07:26:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:26:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:26:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:26:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:26:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:26:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:26:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:26:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:26:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:26:19,001 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:26:19,001 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:26:19,001 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:26:19,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:26:19,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:26:19,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:26:20,207 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:26:20,207 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:26:20,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:26:20 BoogieIcfgContainer [2020-09-25 07:26:20,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:26:20,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:26:20,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:26:20,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:26:20,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:26:17" (1/3) ... [2020-09-25 07:26:20,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d6f78e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:26:20, skipping insertion in model container [2020-09-25 07:26:20,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:26:18" (2/3) ... [2020-09-25 07:26:20,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d6f78e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:26:20, skipping insertion in model container [2020-09-25 07:26:20,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:26:20" (3/3) ... [2020-09-25 07:26:20,227 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2020-09-25 07:26:20,241 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:26:20,255 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:26:20,282 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:26:20,316 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:26:20,316 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:26:20,317 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:26:20,317 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:26:20,317 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:26:20,317 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:26:20,317 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:26:20,317 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:26:20,348 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states. [2020-09-25 07:26:20,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 07:26:20,367 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:26:20,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:26:20,369 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:26:20,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:26:20,379 INFO L82 PathProgramCache]: Analyzing trace with hash -382472662, now seen corresponding path program 1 times [2020-09-25 07:26:20,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:26:20,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156627797] [2020-09-25 07:26:20,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:26:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:20,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:21,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:21,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:22,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:22,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:25,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:25,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 07:26:25,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:26:25,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-25 07:26:25,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:25,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:26:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:25,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 07:26:26,216 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:26:26,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:26:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:26,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:26,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:26,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:26:26,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:26,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 07:26:26,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:26,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:26,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:26,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:26,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:26,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:26,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:26:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:26,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:26,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:26,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:26,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:26,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:26,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:26,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:26,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:26,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:26,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:26,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:26,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:26:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:26,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:26,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:26,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:26,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:26,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:26:26,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:26,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:26,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:26,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:26,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:26,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:26:26,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:26:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:26,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:26,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:26,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:26,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:26,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:26,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:26,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:26,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:26,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:26,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:26,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:26,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:26:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:26,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:26,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:26,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:26,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:26,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:26:26,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:26,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:26,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:26,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:26,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:26,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:26,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:26:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:26,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:26,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:26,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:26,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:26,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:26,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:26,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:26,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:26,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:26,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:26,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:26,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:26:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:26,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:26,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:26,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:26,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:26,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:26:26,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:26,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:26,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:26,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:26,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:26,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:26,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:26:26,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156627797] [2020-09-25 07:26:26,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:26:26,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:26:26,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996514446] [2020-09-25 07:26:26,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:26:26,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:26:26,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:26:26,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:26:26,587 INFO L87 Difference]: Start difference. First operand 301 states. Second operand 3 states. [2020-09-25 07:26:28,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:26:28,092 INFO L93 Difference]: Finished difference Result 467 states and 558 transitions. [2020-09-25 07:26:28,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:26:28,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 07:26:28,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:26:28,131 INFO L225 Difference]: With dead ends: 467 [2020-09-25 07:26:28,132 INFO L226 Difference]: Without dead ends: 291 [2020-09-25 07:26:28,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:26:28,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-09-25 07:26:28,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 250. [2020-09-25 07:26:28,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-09-25 07:26:28,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 272 transitions. [2020-09-25 07:26:28,270 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 272 transitions. Word has length 142 [2020-09-25 07:26:28,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:26:28,271 INFO L479 AbstractCegarLoop]: Abstraction has 250 states and 272 transitions. [2020-09-25 07:26:28,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:26:28,272 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 272 transitions. [2020-09-25 07:26:28,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 07:26:28,277 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:26:28,277 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:26:28,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:26:28,278 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:26:28,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:26:28,279 INFO L82 PathProgramCache]: Analyzing trace with hash -443770342, now seen corresponding path program 1 times [2020-09-25 07:26:28,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:26:28,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [854771288] [2020-09-25 07:26:28,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:26:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:28,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:28,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:28,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:29,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:29,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:33,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:33,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 07:26:33,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:26:33,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-09-25 07:26:33,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:33,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:33,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:33,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 07:26:33,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 07:26:33,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:33,728 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:26:33,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:26:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:33,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:34,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:34,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:26:34,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:34,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-25 07:26:34,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:34,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:34,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:34,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:34,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 07:26:34,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:34,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:26:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:34,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:34,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:34,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:34,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:34,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:26:34,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:34,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:34,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:34,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:34,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:26:34,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:34,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:26:34,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:34,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:34,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:34,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:34,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:34,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 07:26:34,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:34,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:34,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:34,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:34,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:26:34,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:34,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:26:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:34,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:34,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:34,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:34,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:34,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:26:34,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:34,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:34,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:34,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:34,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:26:34,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:34,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:26:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:34,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:34,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:34,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:34,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:34,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:34,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:34,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:34,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:34,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:34,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:26:34,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:34,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:26:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:34,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:34,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:34,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:34,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:34,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:34,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:34,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:34,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:34,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:34,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:34,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:34,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:26:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:34,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:34,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:34,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:34,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:34,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:34,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:34,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:34,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:34,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:34,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:34,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:34,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:26:34,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [854771288] [2020-09-25 07:26:34,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:26:34,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:26:34,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983379166] [2020-09-25 07:26:34,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:26:34,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:26:34,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:26:34,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:26:34,192 INFO L87 Difference]: Start difference. First operand 250 states and 272 transitions. Second operand 4 states. [2020-09-25 07:26:34,675 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:26:35,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:26:35,775 INFO L93 Difference]: Finished difference Result 431 states and 499 transitions. [2020-09-25 07:26:35,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:26:35,776 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 07:26:35,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:26:35,780 INFO L225 Difference]: With dead ends: 431 [2020-09-25 07:26:35,780 INFO L226 Difference]: Without dead ends: 291 [2020-09-25 07:26:35,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:26:35,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-09-25 07:26:35,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 250. [2020-09-25 07:26:35,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-09-25 07:26:35,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 271 transitions. [2020-09-25 07:26:35,853 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 271 transitions. Word has length 143 [2020-09-25 07:26:35,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:26:35,855 INFO L479 AbstractCegarLoop]: Abstraction has 250 states and 271 transitions. [2020-09-25 07:26:35,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:26:35,855 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 271 transitions. [2020-09-25 07:26:35,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 07:26:35,860 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:26:35,861 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] [2020-09-25 07:26:35,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:26:35,861 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:26:35,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:26:35,862 INFO L82 PathProgramCache]: Analyzing trace with hash -2076870304, now seen corresponding path program 1 times [2020-09-25 07:26:35,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:26:35,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [945822778] [2020-09-25 07:26:35,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:26:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:35,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:36,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:36,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:37,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:38,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:38,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:38,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:40,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:40,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 07:26:40,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:26:40,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 07:26:40,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:40,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:40,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:26:40,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:26:40,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:26:40,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:41,239 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:26:41,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:26:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:41,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:41,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:41,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:26:41,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:41,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 07:26:41,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:41,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:41,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:41,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:41,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:26:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:41,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:41,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:41,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:41,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:41,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:41,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:41,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:41,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:41,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:41,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:41,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:41,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:26:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:41,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:41,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:41,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:41,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:41,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:41,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:41,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:41,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:41,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:41,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:41,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:41,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:26:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:41,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:41,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:41,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:41,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:41,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:26:41,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:41,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:41,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:41,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:41,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:41,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:41,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:26:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:41,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:41,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:41,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:41,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:41,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:26:41,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:41,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:41,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:41,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:26:41,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 07:26:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:41,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:41,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:41,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:41,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 07:26:41,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:26:41,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:26:41,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:41,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:26:41,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:26:41,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:26:41,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:26:41,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:26:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:41,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:41,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:41,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:26:41,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:41,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:26:41,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:41,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:41,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:26:41,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:26:41,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:26:41,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:41,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:26:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:41,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:41,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:41,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:41,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:41,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:41,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:41,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:41,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:41,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:41,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:26:41,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:41,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 07:26:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:41,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:41,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:41,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:41,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:41,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:41,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:41,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:41,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:41,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:41,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:41,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:41,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 07:26:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:41,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:41,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:41,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:41,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:41,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:41,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:41,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:41,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:41,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:26:41,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:41,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:41,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:26:41,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [945822778] [2020-09-25 07:26:41,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:26:41,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:26:41,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810881888] [2020-09-25 07:26:41,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:26:41,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:26:41,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:26:41,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:26:41,533 INFO L87 Difference]: Start difference. First operand 250 states and 271 transitions. Second operand 6 states. [2020-09-25 07:26:42,032 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:26:43,394 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:26:44,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:26:44,731 INFO L93 Difference]: Finished difference Result 596 states and 720 transitions. [2020-09-25 07:26:44,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:26:44,731 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-09-25 07:26:44,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:26:44,742 INFO L225 Difference]: With dead ends: 596 [2020-09-25 07:26:44,742 INFO L226 Difference]: Without dead ends: 456 [2020-09-25 07:26:44,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:26:44,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-09-25 07:26:44,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 373. [2020-09-25 07:26:44,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-09-25 07:26:44,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 416 transitions. [2020-09-25 07:26:44,805 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 416 transitions. Word has length 165 [2020-09-25 07:26:44,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:26:44,806 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 416 transitions. [2020-09-25 07:26:44,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:26:44,806 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 416 transitions. [2020-09-25 07:26:44,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-25 07:26:44,809 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:26:44,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:26:44,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:26:44,810 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:26:44,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:26:44,810 INFO L82 PathProgramCache]: Analyzing trace with hash -302631432, now seen corresponding path program 1 times [2020-09-25 07:26:44,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:26:44,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [37240400] [2020-09-25 07:26:44,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:26:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:44,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:45,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:47,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:47,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:47,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:49,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:49,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:49,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-25 07:26:49,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:26:49,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 07:26:49,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:49,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:49,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:26:49,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 07:26:49,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 07:26:49,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:26:50,306 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:26:50,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:26:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:50,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:50,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:50,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:26:50,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:50,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 07:26:50,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:50,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:50,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:50,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:50,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:50,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:26:50,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:26:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:50,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:50,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:50,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:50,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:50,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:50,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:50,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:50,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:50,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:50,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:50,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:26:50,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:26:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:50,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:50,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:50,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:50,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:50,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:50,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:50,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:50,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:50,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:50,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:50,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:26:50,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:26:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:50,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:50,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:50,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:50,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:50,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:26:50,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:50,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:50,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:50,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:50,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:50,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:26:50,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:26:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:50,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:50,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:50,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:50,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:50,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:26:50,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:50,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:50,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:50,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:50,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:50,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:50,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 07:26:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:50,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:50,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:50,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:50,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:52,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:52,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 07:26:52,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:26:52,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1947 [2020-09-25 07:26:52,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:52,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:52,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:52,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:52,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:26:52,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:52,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:26:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:52,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:52,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:52,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:52,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:52,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:26:52,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:26:52,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 464 [2020-09-25 07:26:52,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:52,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:52,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:52,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:52,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:26:52,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:52,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:26:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:52,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:53,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:53,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:53,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:26:53,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:26:53,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 07:26:53,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:53,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:53,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:53,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:53,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:26:53,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:53,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:26:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:53,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:53,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:53,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:26:53,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:53,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:26:53,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:53,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:53,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:26:53,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:53,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:26:53,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:53,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:26:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:53,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:53,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:53,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:26:53,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:53,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:53,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:53,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:53,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:53,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:53,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:26:53,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:53,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 07:26:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:53,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:53,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:53,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:53,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:53,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:26:53,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:53,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:53,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:26:53,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:53,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:26:53,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:53,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 07:26:53,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:53,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:53,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:26:53,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:26:53,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:26:53,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:26:53,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:26:53,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:26:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:26:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:26:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:26:53,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:26:53,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:26:53,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [37240400] [2020-09-25 07:26:53,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:26:53,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:26:53,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490591892] [2020-09-25 07:26:53,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:26:53,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:26:53,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:26:53,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:26:53,193 INFO L87 Difference]: Start difference. First operand 373 states and 416 transitions. Second operand 9 states. [2020-09-25 07:26:53,683 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:26:55,190 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:26:55,470 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:26:55,758 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:26:56,046 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:26:56,391 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:26:56,758 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 07:26:57,080 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:26:57,433 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:26:58,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:26:58,626 INFO L93 Difference]: Finished difference Result 449 states and 524 transitions. [2020-09-25 07:26:58,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:26:58,627 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 189 [2020-09-25 07:26:58,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:26:58,632 INFO L225 Difference]: With dead ends: 449 [2020-09-25 07:26:58,632 INFO L226 Difference]: Without dead ends: 446 [2020-09-25 07:26:58,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 07:26:58,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2020-09-25 07:26:58,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 373. [2020-09-25 07:26:58,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-09-25 07:26:58,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 415 transitions. [2020-09-25 07:26:58,678 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 415 transitions. Word has length 189 [2020-09-25 07:26:58,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:26:58,679 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 415 transitions. [2020-09-25 07:26:58,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:26:58,679 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 415 transitions. [2020-09-25 07:26:58,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 07:26:58,682 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:26:58,682 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] [2020-09-25 07:26:58,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:26:58,682 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:26:58,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:26:58,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1798896804, now seen corresponding path program 1 times [2020-09-25 07:26:58,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:26:58,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1787767580] [2020-09-25 07:26:58,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:26:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:26:58,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:58,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:26:59,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:03,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:03,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-25 07:27:03,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:27:03,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 07:27:03,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:03,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:27:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:27:03,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0