/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=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:03:39,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:03:39,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:03:39,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:03:39,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:03:39,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:03:39,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:03:39,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:03:39,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:03:39,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:03:39,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:03:39,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:03:39,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:03:39,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:03:39,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:03:39,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:03:39,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:03:39,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:03:39,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:03:39,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:03:39,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:03:39,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:03:39,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:03:39,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:03:39,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:03:39,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:03:39,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:03:39,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:03:39,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:03:39,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:03:39,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:03:39,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:03:39,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:03:39,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:03:39,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:03:39,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:03:39,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:03:39,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:03:39,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:03:39,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:03:39,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:03:39,260 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 11:03:39,312 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:03:39,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:03:39,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:03:39,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:03:39,316 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:03:39,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:03:39,317 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:03:39,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:03:39,317 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:03:39,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:03:39,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:03:39,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:03:39,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:03:39,319 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:03:39,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:03:39,320 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:03:39,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:03:39,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:03:39,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:03:39,321 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:03:39,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:03:39,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:03:39,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:03:39,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:03:39,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:03:39,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:03:39,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:03:39,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:03:39,323 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:03:39,323 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=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 11:03:39,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:03:39,783 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:03:39,788 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:03:39,790 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:03:39,790 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:03:39,792 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product60.cil.c [2020-09-25 11:03:39,885 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d36463b31/7eb1a43542294e19b237c5a27643141b/FLAG7fc90d17b [2020-09-25 11:03:40,537 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:03:40,538 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product60.cil.c [2020-09-25 11:03:40,566 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d36463b31/7eb1a43542294e19b237c5a27643141b/FLAG7fc90d17b [2020-09-25 11:03:40,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d36463b31/7eb1a43542294e19b237c5a27643141b [2020-09-25 11:03:40,784 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:03:40,789 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:03:40,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:03:40,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:03:40,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:03:40,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:03:40" (1/1) ... [2020-09-25 11:03:40,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71155234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:40, skipping insertion in model container [2020-09-25 11:03:40,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:03:40" (1/1) ... [2020-09-25 11:03:40,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:03:40,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:03:41,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:03:41,426 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:03:41,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:03:41,609 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:03:41,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:41 WrapperNode [2020-09-25 11:03:41,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:03:41,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:03:41,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:03:41,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:03:41,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:41" (1/1) ... [2020-09-25 11:03:41,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:41" (1/1) ... [2020-09-25 11:03:41,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:41" (1/1) ... [2020-09-25 11:03:41,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:41" (1/1) ... [2020-09-25 11:03:41,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:41" (1/1) ... [2020-09-25 11:03:41,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:41" (1/1) ... [2020-09-25 11:03:41,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:41" (1/1) ... [2020-09-25 11:03:41,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:03:41,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:03:41,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:03:41,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:03:41,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:41" (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 11:03:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:03:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:03:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 11:03:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 11:03:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 11:03:41,835 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 11:03:41,835 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 11:03:41,836 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 11:03:41,836 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 11:03:41,836 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 11:03:41,836 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 11:03:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 11:03:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 11:03:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 11:03:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 11:03:41,838 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 11:03:41,838 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 11:03:41,838 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 11:03:41,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 11:03:41,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 11:03:41,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 11:03:41,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 11:03:41,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 11:03:41,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 11:03:41,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 11:03:41,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 11:03:41,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 11:03:41,841 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 11:03:41,841 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 11:03:41,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 11:03:41,842 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 11:03:41,842 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:03:41,842 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 11:03:41,842 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 11:03:41,842 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 11:03:41,843 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 11:03:41,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 11:03:41,843 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 11:03:41,843 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 11:03:41,843 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 11:03:41,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 11:03:41,843 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 11:03:41,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 11:03:41,844 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 11:03:41,844 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 11:03:41,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:03:41,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:03:41,844 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 11:03:41,845 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 11:03:41,845 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 11:03:41,845 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 11:03:41,845 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 11:03:41,846 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 11:03:41,846 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 11:03:41,846 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 11:03:41,846 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 11:03:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 11:03:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 11:03:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 11:03:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 11:03:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 11:03:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 11:03:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 11:03:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 11:03:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 11:03:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 11:03:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 11:03:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 11:03:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 11:03:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 11:03:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 11:03:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 11:03:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 11:03:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 11:03:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 11:03:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 11:03:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 11:03:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 11:03:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 11:03:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 11:03:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 11:03:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 11:03:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 11:03:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 11:03:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 11:03:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 11:03:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 11:03:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 11:03:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 11:03:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 11:03:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 11:03:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 11:03:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 11:03:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 11:03:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 11:03:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 11:03:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 11:03:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 11:03:41,857 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 11:03:41,857 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:03:41,857 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 11:03:41,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:03:41,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 11:03:41,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:03:43,006 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:03:43,006 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 11:03:43,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:03:43 BoogieIcfgContainer [2020-09-25 11:03:43,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:03:43,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:03:43,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:03:43,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:03:43,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:03:40" (1/3) ... [2020-09-25 11:03:43,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6080ffae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:03:43, skipping insertion in model container [2020-09-25 11:03:43,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:41" (2/3) ... [2020-09-25 11:03:43,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6080ffae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:03:43, skipping insertion in model container [2020-09-25 11:03:43,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:03:43" (3/3) ... [2020-09-25 11:03:43,023 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product60.cil.c [2020-09-25 11:03:43,034 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:03:43,046 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:03:43,069 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:03:43,101 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:03:43,101 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:03:43,101 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:03:43,101 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:03:43,102 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:03:43,102 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:03:43,102 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:03:43,102 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:03:43,133 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states. [2020-09-25 11:03:43,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 11:03:43,152 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:03:43,154 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:03:43,155 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:03:43,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:03:43,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1647532489, now seen corresponding path program 1 times [2020-09-25 11:03:43,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:03:43,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1541221210] [2020-09-25 11:03:43,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:03:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:43,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:43,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:45,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:45,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:48,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:48,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:48,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 11:03:48,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:03:48,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 11:03:48,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:48,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:48,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 11:03:48,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 11:03:48,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-25 11:03:48,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 11:03:48,989 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:03:48,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:03:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:49,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:49,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:49,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 11:03:49,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:49,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-09-25 11:03:49,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:49,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:49,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:03:49,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:49,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 11:03:49,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:49,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 11:03:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:49,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:49,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:49,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:03:49,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:49,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:03:49,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:49,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:49,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:03:49,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:49,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:03:49,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:49,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 11:03:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:49,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:49,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:49,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:03:49,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:49,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:03:49,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:49,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:49,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:03:49,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:49,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:03:49,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:49,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 11:03:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:49,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:49,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:49,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:03:49,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:49,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:03:49,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:49,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:49,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:03:49,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:49,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:03:49,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:49,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 11:03:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:49,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:49,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:49,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:03:49,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:49,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:03:49,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:49,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:49,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:03:49,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:49,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:03:49,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:49,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 11:03:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:49,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:49,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:49,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:03:49,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:49,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:03:49,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:49,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:03:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:03:49,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:49,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:03:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:49,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:49,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:49,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:03:49,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:49,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:03:49,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:49,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:49,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:03:49,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:49,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 11:03:49,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:49,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:03:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:49,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:49,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:49,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:03:49,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:49,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:49,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:49,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:49,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:49,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:49,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:49,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:49,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 11:03:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:49,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:49,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:49,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:03:49,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:49,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:03:49,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:49,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:49,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:03:49,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:49,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:03:49,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:49,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 11:03:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:49,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:49,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:49,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:03:49,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:49,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:03:49,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:49,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:49,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:03:49,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:49,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:03:49,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:49,663 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 11:03:49,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1541221210] [2020-09-25 11:03:49,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:03:49,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 11:03:49,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739099156] [2020-09-25 11:03:49,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 11:03:49,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:03:49,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 11:03:49,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 11:03:49,695 INFO L87 Difference]: Start difference. First operand 357 states. Second operand 9 states. [2020-09-25 11:03:50,261 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:03:51,348 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 11:03:51,931 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-25 11:03:53,670 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 11:03:54,003 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 11:03:54,374 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:03:54,835 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:03:55,155 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 11:03:55,473 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:03:56,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:03:56,758 INFO L93 Difference]: Finished difference Result 699 states and 850 transitions. [2020-09-25 11:03:56,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 11:03:56,760 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-25 11:03:56,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:03:56,784 INFO L225 Difference]: With dead ends: 699 [2020-09-25 11:03:56,784 INFO L226 Difference]: Without dead ends: 466 [2020-09-25 11:03:56,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2020-09-25 11:03:56,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-09-25 11:03:56,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 415. [2020-09-25 11:03:56,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-09-25 11:03:56,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 469 transitions. [2020-09-25 11:03:56,933 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 469 transitions. Word has length 160 [2020-09-25 11:03:56,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:03:56,934 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 469 transitions. [2020-09-25 11:03:56,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 11:03:56,935 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 469 transitions. [2020-09-25 11:03:56,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-09-25 11:03:56,942 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:03:56,942 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:03:56,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:03:56,942 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:03:56,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:03:56,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1993362504, now seen corresponding path program 1 times [2020-09-25 11:03:56,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:03:56,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604104555] [2020-09-25 11:03:56,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:03:57,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:57,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:58,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:58,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-09-25 11:03:58,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:58,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1161 [2020-09-25 11:03:58,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:58,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:58,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:03:58,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 206 [2020-09-25 11:03:58,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:03:58,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:03:58,494 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:03:58,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:03:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:58,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:58,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:58,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 11:03:58,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:58,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 11:03:58,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:58,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:58,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:58,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:58,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:58,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:58,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 11:03:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:58,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:58,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:58,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:03:58,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:58,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:58,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:58,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:58,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:58,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:58,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:58,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:58,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 11:03:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:58,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:58,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:58,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:03:58,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:58,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:58,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:58,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:58,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:58,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:58,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:58,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:03:58,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 11:03:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:58,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:58,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:58,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:03:58,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:58,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:03:58,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:58,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:58,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:58,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:58,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:58,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:03:58,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 11:03:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:58,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:58,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:58,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:03:58,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:58,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:03:58,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:58,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:58,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:58,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:58,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:58,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:03:58,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 11:03:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:58,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:58,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:58,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:03:58,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:58,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:58,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:58,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:58,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:58,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:58,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:58,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:58,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 11:03:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:58,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:58,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:58,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:03:58,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:58,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:58,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:58,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:58,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:58,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:58,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:58,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:58,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 11:03:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:58,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:58,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:58,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:03:58,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:58,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:58,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:58,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:58,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:58,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:58,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:58,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:58,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:03:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:58,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:58,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:58,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:03:58,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:58,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:58,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:58,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:58,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:58,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:58,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:58,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:03:58,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 11:03:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:58,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:58,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:58,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 11:03:58,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:58,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 11:03:58,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:58,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:58,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:03:58,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 11:03:58,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:03:58,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:58,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:03:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:58,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:58,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:58,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 11:03:58,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:58,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 11:03:58,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:58,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:58,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:03:58,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 11:03:58,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:03:58,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:58,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:03:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:58,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:59,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:59,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:03:59,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:59,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 11:03:59,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:59,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:59,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:03:59,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:59,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 11:03:59,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:59,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:03:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:59,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:59,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:59,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:03:59,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:59,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:03:59,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:59,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:59,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:59,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:59,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:59,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:59,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 11:03:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:59,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:59,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:59,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 11:03:59,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:59,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:03:59,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:59,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:59,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:59,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 11:03:59,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:59,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:59,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:03:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:59,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:59,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:59,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 11:03:59,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:59,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:59,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:59,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:59,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:59,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:59,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:59,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:59,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:03:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:59,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:59,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:59,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:03:59,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:59,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:59,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:59,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:59,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:59,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:59,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 11:03:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:59,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:59,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:59,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:03:59,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:59,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:03:59,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:59,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:59,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:59,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:59,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:59,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:59,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-25 11:03:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:59,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:59,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:59,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:03:59,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:59,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:59,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:59,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:59,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:59,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:03:59,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:59,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:03:59,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-09-25 11:03:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:59,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:59,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:59,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:03:59,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:59,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:59,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:59,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:59,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:59,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:03:59,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:59,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:59,196 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 11:03:59,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604104555] [2020-09-25 11:03:59,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:03:59,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 11:03:59,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638908398] [2020-09-25 11:03:59,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 11:03:59,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:03:59,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 11:03:59,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 11:03:59,201 INFO L87 Difference]: Start difference. First operand 415 states and 469 transitions. Second operand 11 states. [2020-09-25 11:04:00,924 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:04:01,223 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 11:04:01,565 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 11:04:01,887 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:04:02,242 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 11:04:02,538 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:04:03,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:04:03,836 INFO L93 Difference]: Finished difference Result 886 states and 1124 transitions. [2020-09-25 11:04:03,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 11:04:03,839 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 234 [2020-09-25 11:04:03,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:04:03,847 INFO L225 Difference]: With dead ends: 886 [2020-09-25 11:04:03,848 INFO L226 Difference]: Without dead ends: 586 [2020-09-25 11:04:03,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-25 11:04:03,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2020-09-25 11:04:03,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 424. [2020-09-25 11:04:03,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-09-25 11:04:03,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 478 transitions. [2020-09-25 11:04:03,976 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 478 transitions. Word has length 234 [2020-09-25 11:04:03,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:04:03,978 INFO L479 AbstractCegarLoop]: Abstraction has 424 states and 478 transitions. [2020-09-25 11:04:03,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 11:04:03,978 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 478 transitions. [2020-09-25 11:04:03,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-25 11:04:03,988 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:04:03,989 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:03,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:04:03,989 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:04:03,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:04:03,990 INFO L82 PathProgramCache]: Analyzing trace with hash -457469924, now seen corresponding path program 1 times [2020-09-25 11:04:03,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:04:03,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1378299742] [2020-09-25 11:04:03,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:04:04,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:04,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:04,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:04,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:04,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:09,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:09,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-09-25 11:04:09,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:04:09,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-09-25 11:04:09,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:09,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:09,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:04:09,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 11:04:09,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 11:04:09,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:09,466 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:04:09,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:04:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:09,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:09,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:09,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 11:04:09,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:09,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-25 11:04:09,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:09,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:09,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:09,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:09,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 11:04:09,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:09,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 11:04:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:09,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:09,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:09,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:04:09,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:09,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:04:09,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:09,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:09,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:09,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:09,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:04:09,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:04:09,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 11:04:09,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:09,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:09,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:09,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:04:09,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:09,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:04:09,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:09,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:09,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:09,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:09,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:04:09,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:04:09,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 11:04:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:09,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:09,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:09,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:04:09,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:09,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:04:09,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:09,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:09,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:09,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:09,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:04:09,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:04:09,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 11:04:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:09,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:09,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:09,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:04:09,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:09,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:04:09,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:09,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:09,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:09,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:09,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:04:09,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:04:09,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 11:04:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:09,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:09,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:09,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:04:09,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:09,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:04:09,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:09,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:09,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:09,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:09,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:04:09,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:04:09,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:04:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:09,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:09,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:09,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 11:04:09,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:09,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 11:04:09,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:09,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:09,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:09,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 11:04:09,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 11:04:09,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:09,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:04:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:09,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:09,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:09,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:04:09,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:09,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:04:09,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:09,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:09,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:09,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:09,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:09,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:09,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:04:09,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:09,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:09,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:09,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:04:09,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:09,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:04:09,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:09,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:09,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:09,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:09,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:09,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:09,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 11:04:09,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:09,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:09,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:09,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 11:04:09,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:09,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:04:09,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:09,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:09,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:09,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:09,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 11:04:09,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:09,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:04:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:09,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:09,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:09,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:04:09,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:09,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:04:09,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:09,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:09,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:09,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:09,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:10,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:10,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 11:04:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:10,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:10,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:10,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:04:10,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:10,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:04:10,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:10,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:10,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:10,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 11:04:10,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:10,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:10,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:04:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:10,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:10,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:10,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:04:10,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:10,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:04:10,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:10,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:10,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:10,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:10,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:10,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:10,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 11:04:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:10,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:10,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:10,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:10,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 11:04:10,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:04:10,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 11:04:10,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:10,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:10,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:04:10,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 11:04:10,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:04:10,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:10,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:04:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:10,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:10,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:10,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 11:04:10,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:10,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 11:04:10,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:10,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:10,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:04:10,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 11:04:10,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:04:10,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:10,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:04:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:10,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:10,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:10,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:04:10,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:10,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 11:04:10,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:10,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:10,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:04:10,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:04:10,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:04:10,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:10,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:04:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:10,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:10,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:10,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:04:10,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:10,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:04:10,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:10,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:10,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:04:10,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:10,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:04:10,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:10,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 11:04:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:10,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:10,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:10,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 11:04:10,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:10,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 11:04:10,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:10,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:10,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:10,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 11:04:10,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:10,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:10,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:04:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:10,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:10,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:10,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 11:04:10,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:10,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:04:10,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:10,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:10,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:10,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:10,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:10,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:10,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:04:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:10,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:10,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:10,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:04:10,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:10,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:04:10,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:10,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:10,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:10,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:10,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:10,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:10,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 11:04:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:10,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:10,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:10,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:04:10,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:10,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:04:10,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:10,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:10,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:10,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:10,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:10,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:10,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-25 11:04:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:10,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:10,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:10,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:04:10,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:10,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:04:10,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:10,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:10,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:10,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:04:10,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:10,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:10,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-09-25 11:04:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:10,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:10,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:10,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:04:10,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:10,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:04:10,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:10,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:10,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:10,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:04:10,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:10,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:04:10,506 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 11:04:10,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1378299742] [2020-09-25 11:04:10,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:04:10,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 11:04:10,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386801481] [2020-09-25 11:04:10,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 11:04:10,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:04:10,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 11:04:10,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-09-25 11:04:10,512 INFO L87 Difference]: Start difference. First operand 424 states and 478 transitions. Second operand 13 states. [2020-09-25 11:04:11,049 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:04:12,325 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:04:12,736 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:04:13,014 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 11:04:13,281 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:04:13,706 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 11:04:14,076 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:04:16,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:04:16,368 INFO L93 Difference]: Finished difference Result 953 states and 1190 transitions. [2020-09-25 11:04:16,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 11:04:16,369 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 257 [2020-09-25 11:04:16,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:04:16,377 INFO L225 Difference]: With dead ends: 953 [2020-09-25 11:04:16,377 INFO L226 Difference]: Without dead ends: 633 [2020-09-25 11:04:16,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=179, Invalid=577, Unknown=0, NotChecked=0, Total=756 [2020-09-25 11:04:16,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2020-09-25 11:04:16,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 501. [2020-09-25 11:04:16,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2020-09-25 11:04:16,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 561 transitions. [2020-09-25 11:04:16,491 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 561 transitions. Word has length 257 [2020-09-25 11:04:16,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:04:16,491 INFO L479 AbstractCegarLoop]: Abstraction has 501 states and 561 transitions. [2020-09-25 11:04:16,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 11:04:16,492 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 561 transitions. [2020-09-25 11:04:16,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-09-25 11:04:16,495 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:04:16,496 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:16,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:04:16,496 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:04:16,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:04:16,497 INFO L82 PathProgramCache]: Analyzing trace with hash 2010561300, now seen corresponding path program 1 times [2020-09-25 11:04:16,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:04:16,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442989761] [2020-09-25 11:04:16,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:04:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:16,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:16,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:20,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:20,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-09-25 11:04:20,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:04:20,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3811 [2020-09-25 11:04:20,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:20,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:20,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 11:04:20,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 11:04:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-25 11:04:20,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:20,799 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:04:20,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:04:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:20,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:21,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:21,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 11:04:21,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:21,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-25 11:04:21,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:21,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:21,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:21,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:21,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 11:04:21,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:04:21,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 11:04:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:21,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:21,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:21,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:04:21,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:21,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:04:21,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:21,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:21,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:21,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:21,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:04:21,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:21,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 11:04:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:21,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:21,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:21,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:04:21,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:21,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:04:21,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:21,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:21,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:21,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:21,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:04:21,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:04:21,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 11:04:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:21,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:21,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:21,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:04:21,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:21,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:04:21,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:21,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:21,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:21,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:21,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:04:21,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:04:21,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 11:04:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:21,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:21,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:21,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:04:21,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:21,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:04:21,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:21,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:21,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:21,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:21,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:04:21,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:21,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 11:04:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:21,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:21,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:21,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:04:21,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:21,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:04:21,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:21,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:21,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:21,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:21,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:04:21,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:21,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 11:04:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:21,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:21,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:21,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:04:21,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:21,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 11:04:21,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:21,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:21,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:21,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:21,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 11:04:21,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:04:21,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:04:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:21,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:21,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:21,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:04:21,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:21,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:04:21,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:21,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:21,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:21,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:21,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:21,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:21,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 11:04:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:21,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:21,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:21,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 11:04:21,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:21,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 11:04:21,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:21,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:21,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:21,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 11:04:21,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 11:04:21,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:21,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:04:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:21,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:21,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:21,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 11:04:21,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:21,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 11:04:21,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:21,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:21,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:21,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:21,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:04:21,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:04:21,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:04:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:21,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:21,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:21,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:04:21,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:21,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:04:21,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:21,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:21,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:21,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:21,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:04:21,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:21,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:04:21,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:21,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:21,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:21,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:04:21,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:21,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:04:21,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:21,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:21,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:21,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:21,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 11:04:21,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:21,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 11:04:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:21,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:21,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:21,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 11:04:21,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:21,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 11:04:21,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:21,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:21,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:21,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:21,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 11:04:21,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:21,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:04:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:21,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:21,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:21,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 11:04:21,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:21,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:04:21,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:21,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:21,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:21,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:21,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:21,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:21,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:04:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:21,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:21,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:21,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:04:21,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:21,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:04:21,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:21,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:21,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:21,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:21,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:21,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:21,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 11:04:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:21,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:21,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:21,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:04:21,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:21,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:04:21,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:21,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:21,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:21,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:21,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:21,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:21,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-25 11:04:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:21,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:21,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:21,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:04:21,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:21,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:04:21,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:21,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:21,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:21,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:04:21,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:21,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:21,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-09-25 11:04:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:21,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:21,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:21,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:04:21,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:21,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:04:21,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:21,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:21,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:21,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:04:21,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:21,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:21,542 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 11:04:21,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442989761] [2020-09-25 11:04:21,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:04:21,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 11:04:21,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530911002] [2020-09-25 11:04:21,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 11:04:21,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:04:21,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 11:04:21,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:04:21,546 INFO L87 Difference]: Start difference. First operand 501 states and 561 transitions. Second operand 7 states. [2020-09-25 11:04:22,220 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:04:23,677 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:04:26,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:04:26,663 INFO L93 Difference]: Finished difference Result 1675 states and 2117 transitions. [2020-09-25 11:04:26,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 11:04:26,664 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 221 [2020-09-25 11:04:26,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:04:26,677 INFO L225 Difference]: With dead ends: 1675 [2020-09-25 11:04:26,678 INFO L226 Difference]: Without dead ends: 1271 [2020-09-25 11:04:26,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-25 11:04:26,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2020-09-25 11:04:26,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1068. [2020-09-25 11:04:26,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2020-09-25 11:04:26,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1248 transitions. [2020-09-25 11:04:26,875 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1248 transitions. Word has length 221 [2020-09-25 11:04:26,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:04:26,876 INFO L479 AbstractCegarLoop]: Abstraction has 1068 states and 1248 transitions. [2020-09-25 11:04:26,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 11:04:26,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1248 transitions. [2020-09-25 11:04:26,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-25 11:04:26,884 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:04:26,884 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:26,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:04:26,885 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:04:26,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:04:26,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1193101703, now seen corresponding path program 1 times [2020-09-25 11:04:26,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:04:26,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [979491369] [2020-09-25 11:04:26,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:04:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:27,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:27,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking...