/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=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:21:18,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:21:18,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:21:18,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:21:18,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:21:18,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:21:18,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:21:18,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:21:18,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:21:18,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:21:18,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:21:18,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:21:18,822 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:21:18,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:21:18,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:21:18,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:21:18,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:21:18,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:21:18,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:21:18,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:21:18,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:21:18,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:21:18,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:21:18,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:21:18,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:21:18,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:21:18,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:21:18,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:21:18,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:21:18,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:21:18,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:21:18,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:21:18,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:21:18,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:21:18,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:21:18,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:21:18,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:21:18,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:21:18,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:21:18,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:21:18,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:21:18,854 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 14:21:18,879 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:21:18,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:21:18,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:21:18,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:21:18,881 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:21:18,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:21:18,881 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:21:18,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:21:18,882 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:21:18,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:21:18,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:21:18,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:21:18,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:21:18,883 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:21:18,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:21:18,883 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:21:18,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:21:18,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:21:18,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:21:18,884 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:21:18,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:21:18,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:21:18,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:21:18,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:21:18,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:21:18,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:21:18,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:21:18,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:21:18,886 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:21:18,886 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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;log-additional-information=true; [2020-09-25 14:21:19,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:21:19,386 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:21:19,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:21:19,392 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:21:19,393 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:21:19,394 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product23.cil.c [2020-09-25 14:21:19,455 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3e9819c5/4c4d1206ef634abea4e7e0df237ea0e6/FLAG72410ed1b [2020-09-25 14:21:20,085 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:21:20,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product23.cil.c [2020-09-25 14:21:20,105 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3e9819c5/4c4d1206ef634abea4e7e0df237ea0e6/FLAG72410ed1b [2020-09-25 14:21:20,326 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3e9819c5/4c4d1206ef634abea4e7e0df237ea0e6 [2020-09-25 14:21:20,341 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:21:20,347 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:21:20,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:21:20,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:21:20,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:21:20,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:21:20" (1/1) ... [2020-09-25 14:21:20,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bdfc9a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:20, skipping insertion in model container [2020-09-25 14:21:20,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:21:20" (1/1) ... [2020-09-25 14:21:20,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:21:20,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:21:20,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:21:20,885 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:21:20,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:21:21,018 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:21:21,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:21 WrapperNode [2020-09-25 14:21:21,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:21:21,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:21:21,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:21:21,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:21:21,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:21" (1/1) ... [2020-09-25 14:21:21,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:21" (1/1) ... [2020-09-25 14:21:21,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:21" (1/1) ... [2020-09-25 14:21:21,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:21" (1/1) ... [2020-09-25 14:21:21,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:21" (1/1) ... [2020-09-25 14:21:21,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:21" (1/1) ... [2020-09-25 14:21:21,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:21" (1/1) ... [2020-09-25 14:21:21,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:21:21,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:21:21,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:21:21,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:21:21,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:21" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:21:21,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:21:21,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:21:21,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:21:21,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:21:21,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:21:21,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:21:21,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:21:21,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:21:21,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:21:21,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:21:21,283 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:21:21,283 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:21:21,283 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:21:21,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:21:21,284 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:21:21,285 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:21:21,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 14:21:21,285 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:21:21,285 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:21:21,286 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:21:21,286 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:21:21,286 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:21:21,287 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:21:21,287 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:21:21,287 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 14:21:21,288 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:21:21,288 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:21:21,288 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:21:21,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:21:21,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:21:21,289 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:21:21,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 14:21:21,289 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 14:21:21,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 14:21:21,289 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:21:21,289 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:21:21,290 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:21:21,290 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:21:21,290 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:21:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:21:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:21:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:21:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:21:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:21:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:21:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:21:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:21:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:21:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:21:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:21:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:21:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:21:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:21:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:21:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:21:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:21:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:21:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:21:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:21:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:21:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:21:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:21:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:21:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:21:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:21:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:21:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 14:21:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:21:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:21:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:21:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:21:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 14:21:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:21:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:21:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:21:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:21:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:21:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:21:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:21:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 14:21:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:21:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:21:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 14:21:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 14:21:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:21:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:21:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:21:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:21:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:21:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:21:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:21:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:21:22,675 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:21:22,675 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:21:22,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:21:22 BoogieIcfgContainer [2020-09-25 14:21:22,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:21:22,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:21:22,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:21:22,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:21:22,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:21:20" (1/3) ... [2020-09-25 14:21:22,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f233d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:21:22, skipping insertion in model container [2020-09-25 14:21:22,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:21" (2/3) ... [2020-09-25 14:21:22,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f233d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:21:22, skipping insertion in model container [2020-09-25 14:21:22,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:21:22" (3/3) ... [2020-09-25 14:21:22,692 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product23.cil.c [2020-09-25 14:21:22,704 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:21:22,715 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:21:22,735 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:21:22,765 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:21:22,766 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:21:22,766 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:21:22,766 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:21:22,766 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:21:22,766 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:21:22,766 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:21:22,766 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:21:22,792 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-09-25 14:21:22,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 14:21:22,811 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:21:22,812 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 14:21:22,813 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:21:22,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:21:22,819 INFO L82 PathProgramCache]: Analyzing trace with hash 511028723, now seen corresponding path program 1 times [2020-09-25 14:21:22,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:21:22,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602223674] [2020-09-25 14:21:22,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:21:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:23,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:23,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:24,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:25,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:28,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:28,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 14:21:28,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:21:28,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 14:21:28,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:28,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:28,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:21:28,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 14:21:28,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 14:21:28,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 14:21:28,718 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:21:28,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:21:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:28,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:29,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:29,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:21:29,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:29,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-09-25 14:21:29,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:29,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:29,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:29,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:29,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:21:29,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:21:29,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:21:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:29,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:29,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:29,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:29,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:29,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 14:21:29,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:29,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:29,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:29,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:29,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:29,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:29,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:21:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:29,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:29,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:29,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:29,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:29,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:21:29,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:29,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:29,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:29,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:29,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:29,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:29,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:21:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:29,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:29,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:29,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:29,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:29,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:21:29,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:29,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:29,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:29,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:21:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:29,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:29,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:29,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:29,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:29,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:21:29,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:29,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:29,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:29,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:29,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:29,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:29,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:21:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:29,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:29,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:29,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:29,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:29,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:29,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:29,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:29,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:29,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:29,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:29,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:29,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:21:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:29,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:29,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:29,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:29,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:29,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:29,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:29,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:29,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:29,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:29,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:29,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:29,343 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 14:21:29,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602223674] [2020-09-25 14:21:29,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:21:29,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:21:29,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374726923] [2020-09-25 14:21:29,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:21:29,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:21:29,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:21:29,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:21:29,389 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 4 states. [2020-09-25 14:21:30,023 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:21:32,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:21:32,265 INFO L93 Difference]: Finished difference Result 656 states and 799 transitions. [2020-09-25 14:21:32,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:21:32,269 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 14:21:32,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:21:32,305 INFO L225 Difference]: With dead ends: 656 [2020-09-25 14:21:32,305 INFO L226 Difference]: Without dead ends: 461 [2020-09-25 14:21:32,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:21:32,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2020-09-25 14:21:32,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 394. [2020-09-25 14:21:32,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-25 14:21:32,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 441 transitions. [2020-09-25 14:21:32,501 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 441 transitions. Word has length 142 [2020-09-25 14:21:32,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:21:32,503 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 441 transitions. [2020-09-25 14:21:32,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:21:32,503 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 441 transitions. [2020-09-25 14:21:32,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 14:21:32,516 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:21:32,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:21:32,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:21:32,517 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:21:32,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:21:32,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1632615479, now seen corresponding path program 1 times [2020-09-25 14:21:32,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:21:32,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207001356] [2020-09-25 14:21:32,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:21:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:32,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:33,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:33,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:33,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:34,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:37,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:37,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 14:21:37,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:21:37,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-25 14:21:37,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:37,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:37,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:21:37,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 14:21:37,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-25 14:21:37,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:37,902 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:21:37,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:21:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:37,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:38,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:38,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:21:38,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:38,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-09-25 14:21:38,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:38,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:38,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:38,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:38,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 14:21:38,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:38,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:21:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:38,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:38,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:38,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:38,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:38,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:38,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:38,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:38,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:38,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:38,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:38,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:38,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:21:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:38,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:38,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:38,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:38,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:38,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:38,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:38,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:38,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:38,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:38,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:38,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:38,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:21:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:38,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:38,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:38,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:38,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:38,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:21:38,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:38,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:38,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:38,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:38,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:38,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:38,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:21:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:38,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:38,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:38,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:38,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:38,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:38,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:38,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:38,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:38,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:38,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:38,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:38,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 14:21:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:38,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:38,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:38,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:21:38,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:38,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:38,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:38,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:38,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:38,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:38,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:21:38,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:38,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:21:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:38,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:38,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:38,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:21:38,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:38,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:38,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:38,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:38,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:38,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:21:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:38,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:38,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:38,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:38,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:38,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:21:38,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:38,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:38,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:38,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:38,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:38,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:38,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 14:21:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:38,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:38,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:38,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:38,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:38,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:21:38,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:38,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:38,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:21:38,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:38,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:38,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:38,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 14:21:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:38,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:38,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:38,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:38,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:38,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:38,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:38,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:38,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:38,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:38,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:38,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:38,345 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 14:21:38,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207001356] [2020-09-25 14:21:38,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:21:38,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:21:38,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033707449] [2020-09-25 14:21:38,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:21:38,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:21:38,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:21:38,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:21:38,349 INFO L87 Difference]: Start difference. First operand 394 states and 441 transitions. Second operand 9 states. [2020-09-25 14:21:38,939 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:21:40,759 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:21:41,105 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:41,490 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:21:41,871 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:42,160 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:21:42,482 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:21:42,804 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:21:44,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:21:44,378 INFO L93 Difference]: Finished difference Result 1134 states and 1426 transitions. [2020-09-25 14:21:44,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:21:44,379 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 165 [2020-09-25 14:21:44,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:21:44,390 INFO L225 Difference]: With dead ends: 1134 [2020-09-25 14:21:44,390 INFO L226 Difference]: Without dead ends: 850 [2020-09-25 14:21:44,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 14:21:44,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2020-09-25 14:21:44,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 669. [2020-09-25 14:21:44,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2020-09-25 14:21:44,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 779 transitions. [2020-09-25 14:21:44,513 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 779 transitions. Word has length 165 [2020-09-25 14:21:44,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:21:44,514 INFO L479 AbstractCegarLoop]: Abstraction has 669 states and 779 transitions. [2020-09-25 14:21:44,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:21:44,514 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 779 transitions. [2020-09-25 14:21:44,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 14:21:44,518 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:21:44,518 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] [2020-09-25 14:21:44,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:21:44,519 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:21:44,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:21:44,519 INFO L82 PathProgramCache]: Analyzing trace with hash -2115115518, now seen corresponding path program 1 times [2020-09-25 14:21:44,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:21:44,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1917142325] [2020-09-25 14:21:44,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:21:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:44,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:44,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:44,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:45,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:49,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:49,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 14:21:49,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:21:49,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 14:21:49,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:49,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:49,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:21:49,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 14:21:49,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 14:21:49,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:49,957 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:21:49,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:21:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:50,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:50,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:50,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:21:50,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:50,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-09-25 14:21:50,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:50,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:50,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:50,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:50,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 14:21:50,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:50,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:21:50,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:50,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:50,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:50,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:50,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:50,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:50,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:50,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:50,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:50,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:50,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:50,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:21:50,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:21:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:50,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:50,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:50,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:50,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:50,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:50,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:50,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:50,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:50,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:21:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:50,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:50,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:50,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:50,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:50,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:21:50,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:50,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:50,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:50,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:50,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:50,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:50,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:21:50,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:50,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:50,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:50,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:50,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:50,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:50,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:50,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:50,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:50,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:50,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:50,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:50,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 14:21:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:50,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:50,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:50,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:21:50,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:50,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:21:50,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:50,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:50,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:50,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:21:50,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:50,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:50,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 14:21:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:50,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:50,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:50,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:21:50,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:50,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:50,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:50,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:50,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:50,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 14:21:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:50,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:50,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:21:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:50,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:50,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:50,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:21:50,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:50,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:50,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:50,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:50,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:50,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:50,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:50,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:50,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:21:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:50,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:50,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:50,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:50,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:50,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:21:50,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:50,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:50,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:50,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:50,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:50,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:50,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 14:21:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:50,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:50,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:50,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:50,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:50,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:50,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:50,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:50,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:50,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:50,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 14:21:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:50,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:50,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:50,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:50,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:50,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:50,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:50,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:50,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:50,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:50,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:50,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:50,503 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 14:21:50,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1917142325] [2020-09-25 14:21:50,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:21:50,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:21:50,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033466840] [2020-09-25 14:21:50,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:21:50,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:21:50,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:21:50,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:21:50,507 INFO L87 Difference]: Start difference. First operand 669 states and 779 transitions. Second operand 6 states. [2020-09-25 14:21:50,974 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:21:51,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:21:51,778 INFO L93 Difference]: Finished difference Result 1015 states and 1236 transitions. [2020-09-25 14:21:51,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:21:51,778 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 161 [2020-09-25 14:21:51,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:21:51,783 INFO L225 Difference]: With dead ends: 1015 [2020-09-25 14:21:51,784 INFO L226 Difference]: Without dead ends: 435 [2020-09-25 14:21:51,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:21:51,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-09-25 14:21:51,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 409. [2020-09-25 14:21:51,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-09-25 14:21:51,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 444 transitions. [2020-09-25 14:21:51,874 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 444 transitions. Word has length 161 [2020-09-25 14:21:51,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:21:51,874 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 444 transitions. [2020-09-25 14:21:51,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:21:51,874 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 444 transitions. [2020-09-25 14:21:51,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 14:21:51,876 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:21:51,877 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] [2020-09-25 14:21:51,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:21:51,877 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:21:51,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:21:51,878 INFO L82 PathProgramCache]: Analyzing trace with hash -279065143, now seen corresponding path program 1 times [2020-09-25 14:21:51,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:21:51,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568046477] [2020-09-25 14:21:51,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:21:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:51,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:52,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:52,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:54,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:56,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:56,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 14:21:56,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:21:56,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 14:21:56,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:56,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:56,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:21:56,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 14:21:56,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-25 14:21:56,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:57,375 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:21:57,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:21:57,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:57,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:57,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:57,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:21:57,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:57,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-25 14:21:57,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:57,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:57,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:57,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:57,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 14:21:57,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:57,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:21:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:57,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:57,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:57,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:57,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:57,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:57,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:57,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:57,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:57,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:57,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:57,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:57,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:21:57,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:57,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:57,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:57,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:57,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:57,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:57,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:57,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:57,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:57,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:57,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:57,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:57,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:21:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:57,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:57,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:57,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:57,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:57,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:21:57,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:57,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:57,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:57,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:57,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:57,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:57,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:21:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:57,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:57,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:57,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:57,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:57,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:57,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:57,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:57,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:57,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:57,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:57,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:57,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 14:21:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:57,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:57,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:57,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:21:57,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:57,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:21:57,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:57,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:57,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:57,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:57,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:21:57,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:57,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 14:21:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:57,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:57,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:57,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:57,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:21:57,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:21:57,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:21:57,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:57,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:57,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:21:57,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:21:57,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:21:57,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:57,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 14:21:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:57,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:57,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:57,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:57,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:57,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:57,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:57,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:57,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:57,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:57,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:57,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:57,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 14:21:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:57,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:57,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:57,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:57,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:57,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:21:57,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:57,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:57,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:21:57,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:57,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:57,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:58,015 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 14:21:58,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568046477] [2020-09-25 14:21:58,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:21:58,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 14:21:58,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361106713] [2020-09-25 14:21:58,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 14:21:58,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:21:58,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 14:21:58,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:21:58,018 INFO L87 Difference]: Start difference. First operand 409 states and 444 transitions. Second operand 11 states. [2020-09-25 14:21:58,534 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:21:59,864 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:00,222 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:22:00,575 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:00,960 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:22:01,307 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:01,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:22:01,750 INFO L93 Difference]: Finished difference Result 437 states and 482 transitions. [2020-09-25 14:22:01,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 14:22:01,751 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 166 [2020-09-25 14:22:01,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:22:01,751 INFO L225 Difference]: With dead ends: 437 [2020-09-25 14:22:01,752 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 14:22:01,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-09-25 14:22:01,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 14:22:01,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 14:22:01,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 14:22:01,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 14:22:01,754 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 166 [2020-09-25 14:22:01,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:22:01,755 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 14:22:01,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 14:22:01,755 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 14:22:01,755 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 14:22:01,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:22:01,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 14:22:01,944 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:22:02,145 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:02,324 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:02,501 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:02,678 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:02,835 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 7 [2020-09-25 14:22:03,001 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:03,160 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:03,319 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:03,479 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:22:03,642 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:03,806 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:03,959 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:04,118 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:04,269 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:22:04,432 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:04,585 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:04,737 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:04,888 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:22:05,048 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:05,201 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:05,358 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:05,508 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:22:05,666 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:05,815 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:22:06,064 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 14:22:06,413 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:22:06,570 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:22:06,918 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:22:07,069 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:22:07,409 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:22:07,657 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 14:22:07,902 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 14:22:08,239 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 14:22:08,484 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 14:22:08,727 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189