/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:06:17,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:06:17,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:06:17,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:06:17,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:06:17,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:06:17,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:06:17,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:06:17,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:06:17,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:06:17,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:06:17,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:06:17,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:06:17,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:06:17,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:06:17,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:06:17,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:06:17,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:06:17,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:06:17,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:06:17,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:06:17,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:06:17,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:06:17,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:06:17,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:06:17,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:06:17,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:06:17,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:06:17,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:06:17,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:06:17,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:06:17,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:06:17,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:06:17,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:06:17,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:06:17,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:06:17,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:06:17,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:06:17,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:06:17,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:06:17,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:06:17,296 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:06:17,341 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:06:17,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:06:17,345 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:06:17,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:06:17,348 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:06:17,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:06:17,348 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:06:17,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:06:17,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:06:17,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:06:17,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:06:17,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:06:17,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:06:17,350 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:06:17,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:06:17,351 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:06:17,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:06:17,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:06:17,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:06:17,351 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:06:17,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:06:17,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:06:17,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:06:17,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:06:17,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:06:17,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:06:17,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:06:17,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:06:17,354 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:06:17,354 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:06:17,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:06:17,834 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:06:17,841 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:06:17,843 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:06:17,845 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:06:17,846 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product54.cil.c [2020-09-25 13:06:17,934 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c4ca0dc4/180bf040eee3497d9ec84557f02bf1d5/FLAG793f82536 [2020-09-25 13:06:18,571 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:06:18,575 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product54.cil.c [2020-09-25 13:06:18,606 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c4ca0dc4/180bf040eee3497d9ec84557f02bf1d5/FLAG793f82536 [2020-09-25 13:06:18,833 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c4ca0dc4/180bf040eee3497d9ec84557f02bf1d5 [2020-09-25 13:06:18,846 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:06:18,853 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:06:18,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:06:18,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:06:18,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:06:18,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:06:18" (1/1) ... [2020-09-25 13:06:18,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d3ce57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:18, skipping insertion in model container [2020-09-25 13:06:18,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:06:18" (1/1) ... [2020-09-25 13:06:18,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:06:18,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:06:19,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:06:19,450 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:06:19,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:06:19,600 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:06:19,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:19 WrapperNode [2020-09-25 13:06:19,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:06:19,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:06:19,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:06:19,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:06:19,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:19" (1/1) ... [2020-09-25 13:06:19,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:19" (1/1) ... [2020-09-25 13:06:19,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:19" (1/1) ... [2020-09-25 13:06:19,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:19" (1/1) ... [2020-09-25 13:06:19,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:19" (1/1) ... [2020-09-25 13:06:19,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:19" (1/1) ... [2020-09-25 13:06:19,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:19" (1/1) ... [2020-09-25 13:06:19,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:06:19,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:06:19,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:06:19,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:06:19,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:19" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:06:19,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:06:19,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:06:19,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:06:19,800 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:06:19,801 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:06:19,801 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:06:19,801 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:06:19,801 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:06:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:06:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:06:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:06:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:06:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 13:06:19,803 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 13:06:19,803 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:06:19,803 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:06:19,803 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:06:19,804 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:06:19,804 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:06:19,804 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:06:19,804 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 13:06:19,805 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 13:06:19,805 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 13:06:19,805 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:06:19,805 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:06:19,805 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:06:19,805 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:06:19,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:06:19,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:06:19,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:06:19,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:06:19,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:06:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:06:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:06:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:06:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:06:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:06:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:06:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:06:19,808 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:06:19,808 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 13:06:19,808 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 13:06:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:06:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:06:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:06:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:06:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:06:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:06:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:06:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:06:19,810 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:06:19,810 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:06:19,810 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:06:19,810 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:06:19,810 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:06:19,810 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:06:19,811 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:06:19,811 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:06:19,811 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 13:06:19,811 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:06:19,811 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:06:19,812 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:06:19,812 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:06:19,812 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 13:06:19,812 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 13:06:19,812 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:06:19,813 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:06:19,813 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:06:19,813 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:06:19,813 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:06:19,813 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:06:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 13:06:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 13:06:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 13:06:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 13:06:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:06:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:06:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:06:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:06:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:06:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:06:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:06:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:06:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:06:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:06:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:06:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:06:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:06:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:06:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:06:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:06:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:06:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:06:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:06:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:06:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:06:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:06:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:06:21,316 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:06:21,316 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:06:21,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:06:21 BoogieIcfgContainer [2020-09-25 13:06:21,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:06:21,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:06:21,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:06:21,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:06:21,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:06:18" (1/3) ... [2020-09-25 13:06:21,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff3cdbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:06:21, skipping insertion in model container [2020-09-25 13:06:21,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:06:19" (2/3) ... [2020-09-25 13:06:21,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff3cdbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:06:21, skipping insertion in model container [2020-09-25 13:06:21,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:06:21" (3/3) ... [2020-09-25 13:06:21,340 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product54.cil.c [2020-09-25 13:06:21,353 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:06:21,366 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:06:21,392 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:06:21,429 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:06:21,430 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:06:21,430 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:06:21,430 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:06:21,430 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:06:21,431 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:06:21,431 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:06:21,431 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:06:21,466 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states. [2020-09-25 13:06:21,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:06:21,485 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:06:21,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:06:21,487 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:06:21,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:06:21,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1442746419, now seen corresponding path program 1 times [2020-09-25 13:06:21,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:06:21,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605815125] [2020-09-25 13:06:21,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:06:21,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:22,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:22,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:23,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:24,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:26,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:27,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:27,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:06:27,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:06:27,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5182 [2020-09-25 13:06:27,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:27,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:27,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:06:27,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 13:06:27,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 13:06:27,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:06:27,504 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:06:27,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:06:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:27,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:27,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:27,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:06:27,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:27,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-09-25 13:06:27,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:27,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:27,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:27,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:27,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 13:06:27,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:27,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:06:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:27,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:27,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:27,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:27,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:27,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:06:27,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:27,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:27,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:27,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:27,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:27,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:27,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:06:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:27,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:27,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:27,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:27,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:27,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:06:27,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:27,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:27,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:27,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:27,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:27,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:27,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:06:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:27,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:27,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:27,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:27,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:27,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:06:27,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:27,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:27,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:27,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:27,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:06:27,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:28,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:06:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:28,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:28,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:28,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:28,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:28,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:06:28,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:28,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:28,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:28,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:28,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:28,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:06:28,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:06:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:28,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:28,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:28,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:28,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:28,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:28,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:28,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:28,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:28,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:06:28,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:28,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:28,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:06:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:28,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:28,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:28,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:28,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:28,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:28,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:28,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:28,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:28,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:06:28,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:28,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:28,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:06:28,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605815125] [2020-09-25 13:06:28,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:06:28,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:06:28,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719343842] [2020-09-25 13:06:28,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:06:28,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:06:28,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:06:28,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:06:28,184 INFO L87 Difference]: Start difference. First operand 336 states. Second operand 4 states. [2020-09-25 13:06:28,772 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:06:30,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:06:30,206 INFO L93 Difference]: Finished difference Result 540 states and 643 transitions. [2020-09-25 13:06:30,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:06:30,210 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 13:06:30,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:06:30,232 INFO L225 Difference]: With dead ends: 540 [2020-09-25 13:06:30,232 INFO L226 Difference]: Without dead ends: 329 [2020-09-25 13:06:30,238 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 13:06:30,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-09-25 13:06:30,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 285. [2020-09-25 13:06:30,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2020-09-25 13:06:30,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 311 transitions. [2020-09-25 13:06:30,360 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 311 transitions. Word has length 142 [2020-09-25 13:06:30,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:06:30,361 INFO L479 AbstractCegarLoop]: Abstraction has 285 states and 311 transitions. [2020-09-25 13:06:30,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:06:30,361 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 311 transitions. [2020-09-25 13:06:30,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 13:06:30,367 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:06:30,367 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 13:06:30,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:06:30,368 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:06:30,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:06:30,368 INFO L82 PathProgramCache]: Analyzing trace with hash -316821514, now seen corresponding path program 1 times [2020-09-25 13:06:30,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:06:30,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365631445] [2020-09-25 13:06:30,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:06:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:30,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:30,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:30,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:31,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:31,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:35,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:35,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 13:06:35,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:06:35,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 13:06:35,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:35,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:35,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 13:06:35,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:06:35,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:06:35,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:35,764 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:06:35,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:06:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:35,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:36,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:36,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:06:36,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:36,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-09-25 13:06:36,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:36,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:36,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:36,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:36,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:06:36,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:36,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:06:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:36,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:36,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:36,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:36,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:36,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:06:36,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:36,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:36,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:36,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:36,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:36,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:36,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:06:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:36,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:36,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:36,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:36,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:36,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:06:36,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:36,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:36,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:36,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:36,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:36,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:36,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:06:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:36,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:36,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:36,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:36,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:36,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:06:36,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:36,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:36,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:36,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:36,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:06:36,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:36,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:06:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:36,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:36,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:36,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:36,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:36,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:06:36,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:36,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:36,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:36,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:36,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:36,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:36,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:06:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:36,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:36,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:36,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:36,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:36,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 13:06:36,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:06:36,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 13:06:36,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:36,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:36,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:06:36,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:06:36,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:06:36,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:36,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:06:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:36,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:36,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:36,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:36,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:06:36,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:06:36,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 13:06:36,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:36,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:36,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:06:36,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:06:36,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:06:36,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:06:36,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:06:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:36,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:36,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:36,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:06:36,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:36,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:06:36,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:36,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:36,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:06:36,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:06:36,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:06:36,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:06:36,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:06:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:36,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:36,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:36,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:36,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:36,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:06:36,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:36,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:36,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:36,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:36,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:36,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:36,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 13:06:36,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:36,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:36,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:36,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:36,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:36,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:36,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:36,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:36,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:36,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:06:36,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:36,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:36,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 13:06:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:36,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:36,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:36,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:36,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:36,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:36,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:36,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:36,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:36,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:06:36,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:36,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:36,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:06:36,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365631445] [2020-09-25 13:06:36,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:06:36,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:06:36,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411458528] [2020-09-25 13:06:36,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:06:36,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:06:36,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:06:36,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:06:36,429 INFO L87 Difference]: Start difference. First operand 285 states and 311 transitions. Second operand 7 states. [2020-09-25 13:06:37,036 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:06:38,588 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:06:40,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:06:40,241 INFO L93 Difference]: Finished difference Result 680 states and 818 transitions. [2020-09-25 13:06:40,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 13:06:40,242 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-09-25 13:06:40,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:06:40,251 INFO L225 Difference]: With dead ends: 680 [2020-09-25 13:06:40,252 INFO L226 Difference]: Without dead ends: 505 [2020-09-25 13:06:40,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-25 13:06:40,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2020-09-25 13:06:40,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 420. [2020-09-25 13:06:40,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-09-25 13:06:40,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 466 transitions. [2020-09-25 13:06:40,375 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 466 transitions. Word has length 161 [2020-09-25 13:06:40,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:06:40,376 INFO L479 AbstractCegarLoop]: Abstraction has 420 states and 466 transitions. [2020-09-25 13:06:40,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:06:40,376 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 466 transitions. [2020-09-25 13:06:40,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-25 13:06:40,379 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:06:40,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:06:40,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:06:40,380 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:06:40,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:06:40,381 INFO L82 PathProgramCache]: Analyzing trace with hash 236159680, now seen corresponding path program 1 times [2020-09-25 13:06:40,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:06:40,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002328652] [2020-09-25 13:06:40,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:06:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:40,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:41,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:41,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:41,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:43,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:43,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:45,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:45,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 13:06:45,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:06:45,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 13:06:45,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:45,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:45,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:06:45,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 13:06:45,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-09-25 13:06:45,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:45,883 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:06:45,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:06:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:45,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:46,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:46,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:06:46,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:46,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-09-25 13:06:46,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:46,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:46,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:46,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:46,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:06:46,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:06:46,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:06:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:46,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:46,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:46,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:46,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:46,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:06:46,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:46,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:46,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:46,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:46,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:46,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:46,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:06:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:46,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:46,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:46,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:46,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:46,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:06:46,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:46,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:46,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:46,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:46,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:46,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:46,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:06:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:46,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:46,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:46,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:46,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:46,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:06:46,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:46,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:46,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:46,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:46,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:06:46,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:46,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:06:46,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:46,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:46,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:46,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:46,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:46,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:06:46,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:46,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:46,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:46,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:46,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:46,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:46,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 13:06:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:46,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:46,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:46,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:06:46,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:46,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:06:46,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:46,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:46,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:46,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:46,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:06:46,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:46,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 13:06:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:46,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:46,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:46,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 13:06:46,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:46,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 13:06:46,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:46,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:46,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:46,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:46,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 13:06:46,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:46,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:06:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:46,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:46,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:46,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 13:06:46,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:46,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:06:46,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:46,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:46,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:46,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:46,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:46,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:06:46,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:06:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:46,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:46,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:46,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 13:06:46,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:46,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:06:46,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:46,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:46,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:46,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:46,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:46,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:06:46,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:06:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:46,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:46,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:46,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:06:46,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:46,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:06:46,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:46,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:46,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:46,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:46,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:46,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:06:46,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:06:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:46,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:46,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:46,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:06:46,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:46,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:06:46,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:46,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:46,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:46,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:46,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:46,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:06:46,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:06:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:46,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:46,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:46,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:46,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:46,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:06:46,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:46,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:46,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:46,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:46,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:46,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:06:46,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-25 13:06:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:46,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:46,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:46,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:46,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:46,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:06:46,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:46,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:46,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:06:46,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:46,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:06:46,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:46,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-25 13:06:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:46,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:46,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:46,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:46,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:46,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:06:46,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:46,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:46,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:06:46,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:06:46,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:06:46,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:46,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:06:46,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2002328652] [2020-09-25 13:06:46,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:06:46,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:06:46,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853524265] [2020-09-25 13:06:46,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:06:46,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:06:46,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:06:46,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:06:46,635 INFO L87 Difference]: Start difference. First operand 420 states and 466 transitions. Second operand 10 states. [2020-09-25 13:06:47,171 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:06:48,802 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:06:49,094 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:06:49,400 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:06:49,691 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:06:50,002 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:06:50,608 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:06:50,894 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:06:51,308 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:06:53,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:06:53,623 INFO L93 Difference]: Finished difference Result 1262 states and 1581 transitions. [2020-09-25 13:06:53,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 13:06:53,625 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 198 [2020-09-25 13:06:53,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:06:53,634 INFO L225 Difference]: With dead ends: 1262 [2020-09-25 13:06:53,634 INFO L226 Difference]: Without dead ends: 908 [2020-09-25 13:06:53,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 13:06:53,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2020-09-25 13:06:53,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 666. [2020-09-25 13:06:53,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 666 states. [2020-09-25 13:06:53,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 737 transitions. [2020-09-25 13:06:53,755 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 737 transitions. Word has length 198 [2020-09-25 13:06:53,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:06:53,755 INFO L479 AbstractCegarLoop]: Abstraction has 666 states and 737 transitions. [2020-09-25 13:06:53,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:06:53,756 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 737 transitions. [2020-09-25 13:06:53,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 13:06:53,759 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:06:53,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:06:53,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:06:53,760 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:06:53,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:06:53,760 INFO L82 PathProgramCache]: Analyzing trace with hash -704447827, now seen corresponding path program 1 times [2020-09-25 13:06:53,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:06:53,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179412739] [2020-09-25 13:06:53,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:06:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:53,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:54,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:54,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:54,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:54,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:58,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:58,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-09-25 13:06:58,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:06:58,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 13:06:58,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:58,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 13:06:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:06:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-09-25 13:06:58,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:06:59,262 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:06:59,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:06:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:59,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:59,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:59,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:06:59,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:59,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-09-25 13:06:59,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:59,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:59,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:59,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:59,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:06:59,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:59,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:06:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:59,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:59,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:59,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:59,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:59,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:06:59,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:59,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:59,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:59,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:59,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:59,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:59,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:06:59,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:59,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:59,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:59,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:59,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:59,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:06:59,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:59,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:59,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:59,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:59,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:59,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:06:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:59,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:59,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:59,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:06:59,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:59,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:06:59,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:59,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:59,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:59,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:59,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:06:59,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:59,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:06:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:59,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:59,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:59,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:06:59,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:59,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:06:59,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:59,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:59,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:59,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:59,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:06:59,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:59,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:06:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:59,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:59,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:59,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:06:59,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:59,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:06:59,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:59,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:59,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:59,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:59,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:06:59,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:59,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:06:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:59,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:59,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:06:59,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:06:59,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:06:59,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:06:59,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:06:59,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:06:59,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:06:59,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:06:59,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:06:59,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:06:59,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 13:06:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:06:59,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:59,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:59,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:06:59,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:00,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:00,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 13:07:00,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:07:00,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-09-25 13:07:00,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:00,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:00,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:07:00,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:07:00,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 13:07:00,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:00,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:07:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:00,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:00,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:00,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:00,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 13:07:00,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:07:00,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-25 13:07:00,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:00,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:07:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:07:00,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 13:07:00,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:07:00,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:07:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:00,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:00,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:00,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 13:07:00,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:00,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 13:07:00,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:00,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:07:00,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:00,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 13:07:00,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:07:00,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:07:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:00,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:00,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:00,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:07:00,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:00,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 13:07:00,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:00,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:00,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:00,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 13:07:00,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:07:00,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:07:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:00,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:00,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:00,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:07:00,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:00,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:07:00,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:00,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:00,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:07:00,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:00,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:07:00,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:07:00,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:07:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:00,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:00,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:00,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:00,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:00,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:07:00,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:00,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:00,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:07:00,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:07:00,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 13:07:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:00,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:00,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:00,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:07:00,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:00,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:07:00,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:00,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:00,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:00,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:00,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:07:00,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:00,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-25 13:07:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:00,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:00,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:00,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:07:00,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:00,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:07:00,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:00,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:00,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:07:00,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:00,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:07:00,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:00,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:07:00,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179412739] [2020-09-25 13:07:00,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:07:00,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 13:07:00,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630145721] [2020-09-25 13:07:00,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 13:07:00,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:07:00,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 13:07:00,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-25 13:07:00,680 INFO L87 Difference]: Start difference. First operand 666 states and 737 transitions. Second operand 12 states. [2020-09-25 13:07:01,414 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-09-25 13:07:03,486 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 13:07:03,774 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:07:04,343 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:07:04,718 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:07:05,372 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-09-25 13:07:05,931 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 190 [2020-09-25 13:07:06,494 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-09-25 13:07:06,920 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 187