/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --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_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:05:22,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:05:22,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:05:22,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:05:22,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:05:22,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:05:22,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:05:22,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:05:22,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:05:22,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:05:22,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:05:22,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:05:22,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:05:22,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:05:22,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:05:22,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:05:22,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:05:22,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:05:22,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:05:23,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:05:23,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:05:23,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:05:23,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:05:23,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:05:23,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:05:23,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:05:23,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:05:23,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:05:23,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:05:23,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:05:23,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:05:23,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:05:23,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:05:23,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:05:23,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:05:23,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:05:23,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:05:23,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:05:23,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:05:23,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:05:23,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:05:23,041 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 13:05:23,067 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:05:23,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:05:23,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:05:23,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:05:23,069 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:05:23,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:05:23,070 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:05:23,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:05:23,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:05:23,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:05:23,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:05:23,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:05:23,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:05:23,071 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:05:23,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:05:23,071 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:05:23,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:05:23,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:05:23,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:05:23,072 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:05:23,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:05:23,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:05:23,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:05:23,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:05:23,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:05:23,073 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:05:23,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:05:23,074 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:05:23,074 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:05:23,074 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:05:23,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:05:23,602 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:05:23,607 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:05:23,609 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:05:23,609 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:05:23,611 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c [2020-09-25 13:05:23,682 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a2b6cc3b/ccd688bc06ad48c19125ac7740b29d47/FLAGb1844363f [2020-09-25 13:05:24,330 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:05:24,331 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c [2020-09-25 13:05:24,344 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a2b6cc3b/ccd688bc06ad48c19125ac7740b29d47/FLAGb1844363f [2020-09-25 13:05:24,543 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a2b6cc3b/ccd688bc06ad48c19125ac7740b29d47 [2020-09-25 13:05:24,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:05:24,563 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:05:24,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:05:24,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:05:24,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:05:24,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:05:24" (1/1) ... [2020-09-25 13:05:24,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af20ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:24, skipping insertion in model container [2020-09-25 13:05:24,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:05:24" (1/1) ... [2020-09-25 13:05:24,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:05:24,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:05:25,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:05:25,144 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:05:25,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:05:25,266 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:05:25,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:25 WrapperNode [2020-09-25 13:05:25,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:05:25,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:05:25,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:05:25,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:05:25,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:25" (1/1) ... [2020-09-25 13:05:25,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:25" (1/1) ... [2020-09-25 13:05:25,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:25" (1/1) ... [2020-09-25 13:05:25,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:25" (1/1) ... [2020-09-25 13:05:25,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:25" (1/1) ... [2020-09-25 13:05:25,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:25" (1/1) ... [2020-09-25 13:05:25,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:25" (1/1) ... [2020-09-25 13:05:25,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:05:25,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:05:25,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:05:25,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:05:25,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:05:25,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:05:25,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:05:25,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:05:25,461 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:05:25,462 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:05:25,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:05:25,463 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:05:25,464 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:05:25,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:05:25,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:05:25,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:05:25,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:05:25,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:05:25,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:05:25,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:05:25,466 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:05:25,467 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:05:25,467 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:05:25,467 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:05:25,467 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:05:25,468 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:05:25,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 13:05:25,468 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:05:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:05:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:05:25,470 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:05:25,470 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:05:25,470 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:05:25,470 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:05:25,470 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:05:25,471 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:05:25,471 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 13:05:25,471 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 13:05:25,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:05:25,472 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:05:25,472 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:05:25,472 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:05:25,472 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:05:25,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:05:25,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:05:25,474 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:05:25,475 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:05:25,475 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:05:25,475 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:05:25,475 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:05:25,476 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:05:25,477 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:05:25,477 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:05:25,477 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:05:25,477 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:05:25,477 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:05:25,478 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:05:25,478 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:05:25,478 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:05:25,478 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:05:25,478 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:05:25,479 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:05:25,479 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:05:25,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:05:25,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:05:25,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:05:25,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:05:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:05:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:05:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:05:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:05:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:05:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:05:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:05:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:05:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:05:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:05:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:05:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:05:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:05:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:05:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 13:05:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 13:05:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:05:25,485 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:05:25,485 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:05:25,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:05:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:05:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:05:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 13:05:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:05:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:05:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:05:25,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:05:25,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:05:26,735 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:05:26,736 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:05:26,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:05:26 BoogieIcfgContainer [2020-09-25 13:05:26,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:05:26,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:05:26,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:05:26,749 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:05:26,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:05:24" (1/3) ... [2020-09-25 13:05:26,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652711af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:05:26, skipping insertion in model container [2020-09-25 13:05:26,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:25" (2/3) ... [2020-09-25 13:05:26,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652711af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:05:26, skipping insertion in model container [2020-09-25 13:05:26,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:05:26" (3/3) ... [2020-09-25 13:05:26,753 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product34.cil.c [2020-09-25 13:05:26,766 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:05:26,779 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:05:26,803 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:05:26,838 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:05:26,838 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:05:26,838 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:05:26,838 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:05:26,839 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:05:26,839 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:05:26,839 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:05:26,839 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:05:26,870 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states. [2020-09-25 13:05:26,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:05:26,888 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:05:26,889 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 13:05:26,890 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:05:26,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:05:26,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1579336434, now seen corresponding path program 1 times [2020-09-25 13:05:26,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:05:26,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1939284961] [2020-09-25 13:05:26,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:05:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:27,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:27,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:29,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:30,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:32,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:32,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:05:32,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:05:32,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 13:05:32,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:32,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:32,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:05:32,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 13:05:32,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 13:05:32,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:05:32,881 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:05:32,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:05:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:05:33,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-09-25 13:05:33,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:05:33,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:05:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:33,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:05:33,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:33,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:05:33,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:05:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:33,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:05:33,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:33,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:05:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:33,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:05:33,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:33,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:05:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:33,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:05:33,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:33,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:05:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:33,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:05:33,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:33,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:05:33,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:33,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:05:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:33,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:33,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:33,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:05:33,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:33,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,617 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 13:05:33,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1939284961] [2020-09-25 13:05:33,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:05:33,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:05:33,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446978115] [2020-09-25 13:05:33,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:05:33,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:05:33,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:05:33,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:05:33,651 INFO L87 Difference]: Start difference. First operand 288 states. Second operand 5 states. [2020-09-25 13:05:34,413 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:35,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:05:35,569 INFO L93 Difference]: Finished difference Result 428 states and 511 transitions. [2020-09-25 13:05:35,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:05:35,572 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-09-25 13:05:35,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:05:35,599 INFO L225 Difference]: With dead ends: 428 [2020-09-25 13:05:35,599 INFO L226 Difference]: Without dead ends: 271 [2020-09-25 13:05:35,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:05:35,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-09-25 13:05:35,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 231. [2020-09-25 13:05:35,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-09-25 13:05:35,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 248 transitions. [2020-09-25 13:05:35,716 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 248 transitions. Word has length 142 [2020-09-25 13:05:35,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:05:35,717 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 248 transitions. [2020-09-25 13:05:35,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:05:35,718 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 248 transitions. [2020-09-25 13:05:35,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 13:05:35,723 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:05:35,723 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:05:35,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:05:35,724 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:05:35,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:05:35,724 INFO L82 PathProgramCache]: Analyzing trace with hash 526649109, now seen corresponding path program 1 times [2020-09-25 13:05:35,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:05:35,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [602349855] [2020-09-25 13:05:35,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:05:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:35,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:35,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:36,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:39,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:40,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:40,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 13:05:40,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:05:40,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 13:05:40,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:40,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:40,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:05:40,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:05:40,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 13:05:40,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:41,189 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:05:41,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:05:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:41,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:41,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:41,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:05:41,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:41,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-09-25 13:05:41,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:41,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:41,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:41,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:41,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:05:41,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:41,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:05:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:41,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:41,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:41,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:41,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:41,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:41,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:41,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:41,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:41,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:41,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:41,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:41,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:05:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:41,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:41,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:41,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:41,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:41,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:05:41,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:41,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:41,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:41,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:05:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:41,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:41,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:41,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:41,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:41,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:05:41,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:41,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:41,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:41,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:41,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:41,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:41,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:05:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:41,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:41,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:41,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:41,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:41,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:05:41,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:41,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:41,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:41,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:41,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:41,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:41,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:05:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:41,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:41,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:41,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:05:41,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:41,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:05:41,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:41,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:41,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:41,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:41,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:05:41,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:41,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:05:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:41,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:41,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:41,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:41,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:41,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:05:41,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:41,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:41,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:41,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:41,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:41,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:41,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:05:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:41,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:41,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:41,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:41,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:41,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:05:41,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:41,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:41,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:05:41,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:41,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:41,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:41,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 13:05:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:41,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:41,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:41,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:41,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:41,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:41,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:41,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:41,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:41,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:05:41,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:41,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:05:41,765 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 13:05:41,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [602349855] [2020-09-25 13:05:41,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:05:41,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:05:41,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982866370] [2020-09-25 13:05:41,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:05:41,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:05:41,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:05:41,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:05:41,771 INFO L87 Difference]: Start difference. First operand 231 states and 248 transitions. Second operand 9 states. [2020-09-25 13:05:42,272 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:43,899 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 13:05:44,551 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 13:05:44,939 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:45,313 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:05:45,651 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:46,335 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:46,690 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:05:47,090 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:48,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:05:48,384 INFO L93 Difference]: Finished difference Result 581 states and 713 transitions. [2020-09-25 13:05:48,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 13:05:48,385 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 13:05:48,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:05:48,392 INFO L225 Difference]: With dead ends: 581 [2020-09-25 13:05:48,397 INFO L226 Difference]: Without dead ends: 436 [2020-09-25 13:05:48,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2020-09-25 13:05:48,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2020-09-25 13:05:48,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 327. [2020-09-25 13:05:48,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2020-09-25 13:05:48,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 357 transitions. [2020-09-25 13:05:48,487 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 357 transitions. Word has length 151 [2020-09-25 13:05:48,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:05:48,488 INFO L479 AbstractCegarLoop]: Abstraction has 327 states and 357 transitions. [2020-09-25 13:05:48,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:05:48,489 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 357 transitions. [2020-09-25 13:05:48,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 13:05:48,501 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:05:48,501 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] [2020-09-25 13:05:48,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:05:48,502 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:05:48,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:05:48,502 INFO L82 PathProgramCache]: Analyzing trace with hash 884038317, now seen corresponding path program 1 times [2020-09-25 13:05:48,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:05:48,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1826091193] [2020-09-25 13:05:48,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:05:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:48,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:48,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:49,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:50,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:51,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:51,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 13:05:51,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:05:51,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3303 [2020-09-25 13:05:51,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:51,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:51,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:05:51,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 13:05:51,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-25 13:05:51,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:05:52,151 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:05:52,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:05:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:52,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:52,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:52,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:05:52,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:52,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 13:05:52,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:52,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:52,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:52,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:52,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:05:52,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:05:52,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:05:52,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:52,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:52,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:52,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:52,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:52,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:52,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:52,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:52,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:52,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:52,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:52,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:52,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:05:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:52,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:52,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:52,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:52,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:52,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:05:52,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:52,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:52,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:52,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:52,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:52,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:52,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:05:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:52,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:52,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:52,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:52,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:52,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:05:52,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:52,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:52,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:52,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:52,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:52,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:52,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:05:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:52,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:52,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:52,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:52,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:52,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:05:52,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:52,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:52,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:52,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:52,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:52,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:52,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:05:52,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:52,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:52,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:52,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:05:52,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:52,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:05:52,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:52,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:52,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:52,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:52,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:05:52,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:05:52,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:05:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:52,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:52,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:52,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:05:52,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:52,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:05:52,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:52,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:52,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:52,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:52,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:05:52,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:52,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 13:05:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:52,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:52,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:52,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:05:52,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:52,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:05:52,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:52,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:52,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:05:52,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:05:52,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:05:52,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:52,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:05:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:52,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:52,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:52,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:52,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:52,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:52,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:52,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:52,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:52,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:52,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:52,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:52,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 13:05:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:52,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:52,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:52,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:52,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:52,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:05:52,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:52,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:52,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:52,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:05:52,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:52,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:52,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 13:05:52,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:52,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:52,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:52,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:52,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:52,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:05:52,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:52,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:52,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:52,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:05:52,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:52,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:52,670 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 13:05:52,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1826091193] [2020-09-25 13:05:52,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:05:52,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 13:05:52,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626106666] [2020-09-25 13:05:52,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:05:52,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:05:52,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:05:52,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:05:52,677 INFO L87 Difference]: Start difference. First operand 327 states and 357 transitions. Second operand 8 states. [2020-09-25 13:05:53,379 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:55,204 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:56,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:05:56,868 INFO L93 Difference]: Finished difference Result 1110 states and 1410 transitions. [2020-09-25 13:05:56,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 13:05:56,869 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 169 [2020-09-25 13:05:56,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:05:56,879 INFO L225 Difference]: With dead ends: 1110 [2020-09-25 13:05:56,879 INFO L226 Difference]: Without dead ends: 893 [2020-09-25 13:05:56,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2020-09-25 13:05:56,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2020-09-25 13:05:56,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 520. [2020-09-25 13:05:56,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2020-09-25 13:05:56,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 576 transitions. [2020-09-25 13:05:56,980 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 576 transitions. Word has length 169 [2020-09-25 13:05:56,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:05:56,981 INFO L479 AbstractCegarLoop]: Abstraction has 520 states and 576 transitions. [2020-09-25 13:05:56,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:05:56,982 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 576 transitions. [2020-09-25 13:05:56,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 13:05:56,985 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:05:56,985 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:05:56,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:05:56,985 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:05:56,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:05:56,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1373705450, now seen corresponding path program 1 times [2020-09-25 13:05:56,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:05:56,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1053061590] [2020-09-25 13:05:56,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:05:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:57,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:57,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:57,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:01,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:01,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-25 13:06:01,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:06:01,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4469 [2020-09-25 13:06:01,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:01,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:01,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:06:01,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 13:06:01,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-09-25 13:06:01,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:01,824 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:06:01,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:06:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:01,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:06:02,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-09-25 13:06:02,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:02,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:02,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:06:02,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:02,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:06:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:02,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:06:02,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:02,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:02,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:02,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:02,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:06:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:02,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:06:02,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:02,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:02,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:02,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:02,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:06:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:02,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:06:02,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:02,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:02,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:06:02,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:02,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:06:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:02,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:02,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:02,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:02,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:06:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:06:02,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:06:02,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:02,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:02,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:06:02,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:02,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:06:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:06:02,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:06:02,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:02,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:02,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:06:02,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:02,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 13:06:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 13:06:02,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:06:02,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 13:06:02,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:06:02,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:06:02,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 13:06:02,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:02,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:06:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:06:02,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 13:06:02,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:02,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:02,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 13:06:02,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:02,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:06:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:06:02,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:06:02,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:02,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:02,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:02,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:02,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:06:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:02,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:06:02,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:02,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:02,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:02,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:02,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 13:06:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:02,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:02,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:02,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:02,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:06:02,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:02,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 13:06:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:02,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:02,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:02,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:02,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:02,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:06:02,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:02,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:06:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:06:02,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:02,586 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 13:06:02,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1053061590] [2020-09-25 13:06:02,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:06:02,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 13:06:02,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26440078] [2020-09-25 13:06:02,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 13:06:02,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:06:02,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 13:06:02,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-09-25 13:06:02,589 INFO L87 Difference]: Start difference. First operand 520 states and 576 transitions. Second operand 12 states. [2020-09-25 13:06:03,160 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:06:04,862 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:06:05,156 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:06:05,462 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:06:05,806 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:06:06,172 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:06:06,514 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:06:06,840 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:06:07,242 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:06:09,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:06:09,128 INFO L93 Difference]: Finished difference Result 896 states and 1129 transitions. [2020-09-25 13:06:09,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 13:06:09,129 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 193 [2020-09-25 13:06:09,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:06:09,137 INFO L225 Difference]: With dead ends: 896 [2020-09-25 13:06:09,137 INFO L226 Difference]: Without dead ends: 893 [2020-09-25 13:06:09,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=285, Invalid=707, Unknown=0, NotChecked=0, Total=992 [2020-09-25 13:06:09,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2020-09-25 13:06:09,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 520. [2020-09-25 13:06:09,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2020-09-25 13:06:09,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 575 transitions. [2020-09-25 13:06:09,222 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 575 transitions. Word has length 193 [2020-09-25 13:06:09,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:06:09,222 INFO L479 AbstractCegarLoop]: Abstraction has 520 states and 575 transitions. [2020-09-25 13:06:09,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 13:06:09,223 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 575 transitions. [2020-09-25 13:06:09,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 13:06:09,228 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:06:09,228 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:06:09,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:06:09,229 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:06:09,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:06:09,229 INFO L82 PathProgramCache]: Analyzing trace with hash -386837977, now seen corresponding path program 1 times [2020-09-25 13:06:09,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:06:09,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [512193691] [2020-09-25 13:06:09,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:06:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:09,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 13:06:10,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 867 [2020-09-25 13:06:10,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:06:10,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-25 13:06:10,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:06:10,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:10,549 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:06:10,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:06:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:06:10,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 13:06:10,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:10,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:10,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:06:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:10,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:06:10,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:10,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:10,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:06:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:10,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:06:10,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:10,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:06:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:10,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:10,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:10,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:10,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:06:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:10,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:06:10,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:10,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:10,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:06:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:06:10,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:10,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:10,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:06:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:06:10,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:06:10,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:10,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:10,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 13:06:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 13:06:10,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 13:06:10,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:06:10,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 13:06:10,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:06:10,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:10,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:06:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:06:10,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 13:06:10,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:06:10,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:10,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 13:06:10,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:10,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:06:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:06:10,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:06:10,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:10,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:10,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:06:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:06:10,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:10,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 13:06:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:10,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 13:06:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:10,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:06:10,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:06:10,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:10,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 13:06:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:10,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:10,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:10,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:10,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:10,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:06:10,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:10,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:10,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:10,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:06:10,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:10,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:10,968 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 13:06:10,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [512193691] [2020-09-25 13:06:10,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:06:10,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 13:06:10,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29955749] [2020-09-25 13:06:10,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 13:06:10,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:06:10,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 13:06:10,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:06:10,971 INFO L87 Difference]: Start difference. First operand 520 states and 575 transitions. Second operand 11 states. [2020-09-25 13:06:12,351 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:06:12,673 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 189