/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:40:19,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:40:19,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:40:19,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:40:19,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:40:19,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:40:19,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:40:19,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:40:19,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:40:19,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:40:19,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:40:19,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:40:19,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:40:19,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:40:19,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:40:19,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:40:19,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:40:19,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:40:19,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:40:19,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:40:19,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:40:19,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:40:19,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:40:19,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:40:19,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:40:19,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:40:19,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:40:19,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:40:19,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:40:19,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:40:19,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:40:19,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:40:19,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:40:19,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:40:19,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:40:19,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:40:19,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:40:19,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:40:19,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:40:19,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:40:19,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:40:19,931 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:40:19,957 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:40:19,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:40:19,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:40:19,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:40:19,959 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:40:19,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:40:19,959 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:40:19,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:40:19,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:40:19,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:40:19,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:40:19,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:40:19,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:40:19,960 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:40:19,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:40:19,961 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:40:19,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:40:19,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:40:19,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:40:19,961 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:40:19,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:40:19,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:40:19,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:40:19,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:40:19,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:40:19,963 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:40:19,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:40:19,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:40:19,963 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:40:19,964 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:40:20,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:40:20,408 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:40:20,412 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:40:20,414 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:40:20,414 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:40:20,416 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product48.cil.c [2020-09-25 07:40:20,492 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9edb1285e/58ed4ab2284b40759228c978afd11bd5/FLAGae79eb3e7 [2020-09-25 07:40:21,069 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:40:21,072 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product48.cil.c [2020-09-25 07:40:21,107 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9edb1285e/58ed4ab2284b40759228c978afd11bd5/FLAGae79eb3e7 [2020-09-25 07:40:21,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9edb1285e/58ed4ab2284b40759228c978afd11bd5 [2020-09-25 07:40:21,340 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:40:21,344 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:40:21,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:40:21,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:40:21,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:40:21,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:40:21" (1/1) ... [2020-09-25 07:40:21,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:21, skipping insertion in model container [2020-09-25 07:40:21,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:40:21" (1/1) ... [2020-09-25 07:40:21,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:40:21,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:40:21,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:40:21,809 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:40:22,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:40:22,053 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:40:22,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:22 WrapperNode [2020-09-25 07:40:22,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:40:22,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:40:22,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:40:22,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:40:22,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:22" (1/1) ... [2020-09-25 07:40:22,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:22" (1/1) ... [2020-09-25 07:40:22,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:22" (1/1) ... [2020-09-25 07:40:22,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:22" (1/1) ... [2020-09-25 07:40:22,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:22" (1/1) ... [2020-09-25 07:40:22,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:22" (1/1) ... [2020-09-25 07:40:22,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:22" (1/1) ... [2020-09-25 07:40:22,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:40:22,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:40:22,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:40:22,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:40:22,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:40:22,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:40:22,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:40:22,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:40:22,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:40:22,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:40:22,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:40:22,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:40:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:40:22,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:40:22,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:40:22,271 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:40:22,271 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:40:22,271 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:40:22,272 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:40:22,272 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:40:22,273 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 07:40:22,273 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:40:22,273 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:40:22,274 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:40:22,274 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:40:22,274 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:40:22,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:40:22,275 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:40:22,275 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 07:40:22,275 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:40:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:40:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:40:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:40:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:40:22,277 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:40:22,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:40:22,277 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:40:22,277 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:40:22,277 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:40:22,277 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:40:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:40:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 07:40:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 07:40:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 07:40:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:40:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:40:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:40:22,279 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:40:22,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:40:22,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:40:22,280 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:40:22,281 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:40:22,281 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:40:22,281 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:40:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:40:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:40:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:40:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:40:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:40:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:40:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:40:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:40:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:40:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:40:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:40:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:40:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:40:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:40:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:40:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:40:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:40:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 07:40:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:40:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:40:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:40:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:40:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:40:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:40:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:40:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:40:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:40:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:40:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:40:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:40:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 07:40:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 07:40:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:40:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:40:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:40:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:40:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:40:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 07:40:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:40:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:40:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:40:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 07:40:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:40:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:40:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:40:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:40:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:40:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:40:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:40:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:40:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:40:23,497 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:40:23,497 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:40:23,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:40:23 BoogieIcfgContainer [2020-09-25 07:40:23,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:40:23,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:40:23,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:40:23,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:40:23,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:40:21" (1/3) ... [2020-09-25 07:40:23,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@516d5cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:40:23, skipping insertion in model container [2020-09-25 07:40:23,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:40:22" (2/3) ... [2020-09-25 07:40:23,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@516d5cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:40:23, skipping insertion in model container [2020-09-25 07:40:23,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:40:23" (3/3) ... [2020-09-25 07:40:23,514 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product48.cil.c [2020-09-25 07:40:23,526 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:40:23,537 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:40:23,560 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:40:23,591 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:40:23,591 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:40:23,591 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:40:23,591 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:40:23,592 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:40:23,592 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:40:23,592 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:40:23,592 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:40:23,622 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states. [2020-09-25 07:40:23,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 07:40:23,643 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:40:23,644 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 07:40:23,645 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:40:23,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:40:23,653 INFO L82 PathProgramCache]: Analyzing trace with hash 242208481, now seen corresponding path program 1 times [2020-09-25 07:40:23,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:40:23,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398634405] [2020-09-25 07:40:23,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:40:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:24,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:24,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:26,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:26,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:29,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:29,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 07:40:29,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:40:29,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-25 07:40:29,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:29,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:29,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:29,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 07:40:29,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:29,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 07:40:29,798 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:40:29,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:40:29,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:29,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:30,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:30,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:40:30,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:30,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-09-25 07:40:30,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:30,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:30,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:30,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:30,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:30,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:30,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:40:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:30,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:30,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:30,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:30,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:30,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:40:30,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:30,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:30,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:30,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:30,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:30,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:30,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:40:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:30,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:30,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:30,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:30,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:30,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:40:30,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:30,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:30,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:30,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:30,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:30,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:30,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:40:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:30,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:30,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:30,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:30,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:30,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:40:30,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:30,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:30,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:30,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:30,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:30,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:30,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:40:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:30,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:30,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:30,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:30,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:30,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:40:30,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:30,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:30,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:30,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:30,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:30,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:30,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:40:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:30,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:30,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:30,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:40:30,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:30,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:40:30,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:30,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:30,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:30,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:30,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:30,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:30,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:40:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:30,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:30,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:30,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:40:30,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:30,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:40:30,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:30,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:30,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:30,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:40:30,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:30,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:30,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:40:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:30,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:30,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:30,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:30,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:30,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:40:30,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:30,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:30,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:30,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:30,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:30,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:40:30,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 07:40:30,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:30,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:30,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:30,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:30,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:30,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:40:30,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:30,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:30,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:30,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:40:30,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:30,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:30,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 07:40:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:30,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:30,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:30,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:30,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:30,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:40:30,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:30,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:30,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:30,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:40:30,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:30,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:30,331 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 07:40:30,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398634405] [2020-09-25 07:40:30,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:40:30,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:40:30,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126222926] [2020-09-25 07:40:30,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:40:30,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:40:30,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:40:30,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:40:30,380 INFO L87 Difference]: Start difference. First operand 338 states. Second operand 4 states. [2020-09-25 07:40:32,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:40:32,183 INFO L93 Difference]: Finished difference Result 540 states and 636 transitions. [2020-09-25 07:40:32,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:40:32,185 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 07:40:32,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:40:32,207 INFO L225 Difference]: With dead ends: 540 [2020-09-25 07:40:32,207 INFO L226 Difference]: Without dead ends: 338 [2020-09-25 07:40:32,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:40:32,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-09-25 07:40:32,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 287. [2020-09-25 07:40:32,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-09-25 07:40:32,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 314 transitions. [2020-09-25 07:40:32,340 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 314 transitions. Word has length 160 [2020-09-25 07:40:32,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:40:32,341 INFO L479 AbstractCegarLoop]: Abstraction has 287 states and 314 transitions. [2020-09-25 07:40:32,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:40:32,342 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 314 transitions. [2020-09-25 07:40:32,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 07:40:32,347 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:40:32,347 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] [2020-09-25 07:40:32,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:40:32,348 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:40:32,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:40:32,348 INFO L82 PathProgramCache]: Analyzing trace with hash 424618484, now seen corresponding path program 1 times [2020-09-25 07:40:32,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:40:32,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [141652028] [2020-09-25 07:40:32,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:40:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:32,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:32,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:34,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:34,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:35,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:37,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:37,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 07:40:37,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:40:37,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-25 07:40:37,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:37,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:37,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:40:37,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 07:40:37,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:40:37,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:37,817 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:40:37,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:40:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:37,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:37,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:37,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:40:37,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:37,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 07:40:37,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:37,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:37,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:37,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:37,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:37,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:37,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:40:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:37,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:37,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:37,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:37,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:37,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:40:37,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:37,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:37,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:37,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:37,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:37,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:37,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:40:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:37,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:37,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:38,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:38,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:38,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:38,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:38,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:38,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:38,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:38,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:38,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:38,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:40:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:38,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:38,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:38,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:38,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:38,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:40:38,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:38,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:38,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:38,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:38,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:38,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 07:40:38,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:40:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:38,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:38,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:38,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:38,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:38,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:38,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:38,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:38,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:38,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:38,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:38,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:38,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:40:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:38,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:38,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:38,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:40:38,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:38,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:38,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:38,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:38,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:38,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:38,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:38,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:38,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:40:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:38,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:38,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:38,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:40:38,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:38,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:40:38,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:38,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:38,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:38,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:40:38,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:38,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:38,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:40:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:38,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:38,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:38,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:38,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:38,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:38,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:38,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:38,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:38,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:38,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:38,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:38,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 07:40:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:38,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:38,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:38,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:38,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:38,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:38,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:38,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:38,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:38,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:40:38,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:38,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:38,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 07:40:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:38,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:38,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:38,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:38,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:38,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:40:38,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:38,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:38,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:38,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:40:38,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:38,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:38,106 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 07:40:38,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [141652028] [2020-09-25 07:40:38,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:40:38,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:40:38,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666897665] [2020-09-25 07:40:38,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:40:38,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:40:38,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:40:38,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:40:38,112 INFO L87 Difference]: Start difference. First operand 287 states and 314 transitions. Second operand 5 states. [2020-09-25 07:40:38,836 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:40:40,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:40:40,116 INFO L93 Difference]: Finished difference Result 459 states and 520 transitions. [2020-09-25 07:40:40,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:40:40,117 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 07:40:40,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:40:40,126 INFO L225 Difference]: With dead ends: 459 [2020-09-25 07:40:40,126 INFO L226 Difference]: Without dead ends: 327 [2020-09-25 07:40:40,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:40:40,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-09-25 07:40:40,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 277. [2020-09-25 07:40:40,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-25 07:40:40,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 301 transitions. [2020-09-25 07:40:40,185 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 301 transitions. Word has length 161 [2020-09-25 07:40:40,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:40:40,186 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 301 transitions. [2020-09-25 07:40:40,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:40:40,186 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 301 transitions. [2020-09-25 07:40:40,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 07:40:40,189 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:40:40,190 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] [2020-09-25 07:40:40,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:40:40,190 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:40:40,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:40:40,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1558569605, now seen corresponding path program 1 times [2020-09-25 07:40:40,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:40:40,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1527376684] [2020-09-25 07:40:40,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:40:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:40,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:40,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:40,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:42,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:45,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:45,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 07:40:45,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:40:45,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 07:40:45,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:45,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:45,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:40:45,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 07:40:45,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 07:40:45,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:45,550 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:40:45,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:40:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:45,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:45,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:45,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:40:45,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:45,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 07:40:45,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:45,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:45,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:45,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:45,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:45,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:45,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:40:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:45,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:45,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:45,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:45,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:45,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:45,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:45,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:45,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:45,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:45,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:45,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:45,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:40:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:45,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:45,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:45,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:45,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:45,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:45,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:45,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:45,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:45,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:45,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:45,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:45,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:40:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:45,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:45,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:45,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:45,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:45,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:40:45,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:45,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:45,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:45,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:45,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:45,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:45,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:40:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:45,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:45,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:45,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:45,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:45,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:45,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:45,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:45,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:45,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:45,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:45,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:45,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:40:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:45,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:45,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:45,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:40:45,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:45,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:45,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:45,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:45,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:45,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:45,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:45,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:45,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:40:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:45,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:45,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:45,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:40:45,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:45,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:40:45,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:45,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:45,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:40:45,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:45,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:40:45,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:45,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 07:40:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:45,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:45,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:45,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:40:45,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:45,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:40:45,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:45,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:45,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:40:45,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:45,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:40:45,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:45,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:40:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:45,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:45,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:45,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:45,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:45,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:45,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:45,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:45,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:45,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:45,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:45,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:45,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 07:40:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:45,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:45,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:45,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:45,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:45,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:45,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:45,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:45,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:45,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:40:45,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:45,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:45,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-25 07:40:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:45,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:45,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:45,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:45,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:45,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:40:45,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:45,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:45,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:45,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:40:45,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:45,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:45,820 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 07:40:45,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1527376684] [2020-09-25 07:40:45,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:40:45,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:40:45,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006635535] [2020-09-25 07:40:45,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:40:45,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:40:45,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:40:45,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:40:45,824 INFO L87 Difference]: Start difference. First operand 277 states and 301 transitions. Second operand 6 states. [2020-09-25 07:40:46,370 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:40:48,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:40:48,585 INFO L93 Difference]: Finished difference Result 683 states and 793 transitions. [2020-09-25 07:40:48,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:40:48,586 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-25 07:40:48,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:40:48,591 INFO L225 Difference]: With dead ends: 683 [2020-09-25 07:40:48,591 INFO L226 Difference]: Without dead ends: 521 [2020-09-25 07:40:48,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:40:48,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2020-09-25 07:40:48,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 429. [2020-09-25 07:40:48,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-09-25 07:40:48,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 478 transitions. [2020-09-25 07:40:48,684 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 478 transitions. Word has length 174 [2020-09-25 07:40:48,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:40:48,685 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 478 transitions. [2020-09-25 07:40:48,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:40:48,686 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 478 transitions. [2020-09-25 07:40:48,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 07:40:48,688 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:40:48,689 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] [2020-09-25 07:40:48,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:40:48,689 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:40:48,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:40:48,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1499637602, now seen corresponding path program 1 times [2020-09-25 07:40:48,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:40:48,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [539143159] [2020-09-25 07:40:48,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:40:48,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:48,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:49,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:49,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:51,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:53,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:53,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 07:40:53,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:40:53,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:40:53,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:53,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:53,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:40:53,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 07:40:53,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 07:40:53,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:54,143 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:40:54,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:40:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:54,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:54,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:54,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:40:54,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:54,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 07:40:54,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:54,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:54,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:54,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:54,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:54,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:54,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:40:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:54,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:54,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:54,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:54,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:54,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:54,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:54,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:54,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:54,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:54,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:54,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:54,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:40:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:54,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:54,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:54,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:54,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:54,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:54,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:54,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:54,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:54,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:54,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:54,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:54,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:40:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:54,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:54,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:54,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:54,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:54,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:40:54,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:54,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:54,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:54,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:54,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:54,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:54,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:40:54,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:54,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:54,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:54,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:54,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:54,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:54,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:54,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:54,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:54,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:54,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:54,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:54,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:40:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:54,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:54,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:54,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:40:54,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:54,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:54,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:54,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:54,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:54,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:54,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:54,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:54,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 07:40:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:54,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:54,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:54,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:40:54,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:54,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:40:54,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:54,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:54,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:40:54,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:54,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:40:54,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:54,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 07:40:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:54,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:54,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:54,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:40:54,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:54,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:40:54,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:54,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:54,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:40:54,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:54,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:40:54,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:54,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:40:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:54,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:54,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:54,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:54,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:54,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:54,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:54,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:54,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:54,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 07:40:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:54,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:54,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:54,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:54,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:54,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:40:54,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:54,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:54,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:40:54,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:54,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:40:54,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:54,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-25 07:40:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:54,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:54,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:54,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:54,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:54,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:40:54,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:54,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:54,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:40:54,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:54,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:40:54,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:54,525 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 07:40:54,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [539143159] [2020-09-25 07:40:54,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:40:54,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:40:54,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092881864] [2020-09-25 07:40:54,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:40:54,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:40:54,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:40:54,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:40:54,528 INFO L87 Difference]: Start difference. First operand 429 states and 478 transitions. Second operand 10 states. [2020-09-25 07:40:55,236 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:40:56,208 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:40:56,526 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:40:57,881 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:40:58,176 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:40:58,552 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:40:59,179 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:40:59,536 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 07:40:59,821 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:41:00,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:41:00,352 INFO L93 Difference]: Finished difference Result 1044 states and 1243 transitions. [2020-09-25 07:41:00,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 07:41:00,358 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2020-09-25 07:41:00,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:41:00,363 INFO L225 Difference]: With dead ends: 1044 [2020-09-25 07:41:00,363 INFO L226 Difference]: Without dead ends: 730 [2020-09-25 07:41:00,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 07:41:00,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2020-09-25 07:41:00,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 643. [2020-09-25 07:41:00,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-09-25 07:41:00,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 720 transitions. [2020-09-25 07:41:00,446 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 720 transitions. Word has length 179 [2020-09-25 07:41:00,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:41:00,447 INFO L479 AbstractCegarLoop]: Abstraction has 643 states and 720 transitions. [2020-09-25 07:41:00,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:41:00,448 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 720 transitions. [2020-09-25 07:41:00,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-09-25 07:41:00,452 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:41:00,452 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 07:41:00,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:41:00,452 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:41:00,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:41:00,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1825094604, now seen corresponding path program 1 times [2020-09-25 07:41:00,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:41:00,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760717423] [2020-09-25 07:41:00,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:41:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:00,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:01,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:01,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-09-25 07:41:01,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:01,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 843 [2020-09-25 07:41:01,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:01,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:01,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:41:01,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 206 [2020-09-25 07:41:01,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:41:01,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:01,640 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:41:01,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:01,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:01,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:01,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:41:01,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:01,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 07:41:01,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:01,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:01,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:01,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:01,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:01,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:01,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:41:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:01,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:01,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:01,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:01,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:01,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:01,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:01,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:01,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:01,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:01,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:01,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:01,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:41:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:01,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:01,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:01,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:01,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:01,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:01,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:01,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:01,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:01,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:01,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:01,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:01,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:41:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:01,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:01,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:01,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:01,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:01,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:41:01,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:01,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:01,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:01,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:01,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:01,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:01,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:41:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:01,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:01,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:01,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:41:01,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:01,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:01,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:01,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:01,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:01,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:01,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:01,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:01,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:41:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:01,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:01,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:01,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:41:01,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:01,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:01,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:01,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:01,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:01,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:01,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:01,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:41:01,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:41:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:01,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:01,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:01,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:41:01,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:01,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:41:01,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:01,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:01,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:01,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:01,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:01,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:01,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 07:41:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:01,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:01,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:01,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:41:01,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:01,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:01,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:01,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:01,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:01,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:01,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:01,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:01,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:41:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:01,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:01,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:01,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:01,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:01,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:01,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:01,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:01,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:01,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:01,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:01,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:01,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 07:41:01,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:01,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:02,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:02,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 07:41:02,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:02,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 07:41:02,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:02,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:02,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:41:02,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 07:41:02,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:41:02,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:02,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:41:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:02,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:02,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:02,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 07:41:02,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:02,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 07:41:02,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:02,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:02,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:41:02,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 07:41:02,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:41:02,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:02,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:41:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:02,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:02,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:02,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:41:02,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:02,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 07:41:02,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:02,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:02,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:41:02,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:02,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 07:41:02,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:02,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:41:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:02,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:02,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:02,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:41:02,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:02,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:41:02,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:02,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:02,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:02,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:02,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:02,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:41:02,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:41:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:02,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:02,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:02,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 07:41:02,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:02,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 07:41:02,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:02,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:02,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:02,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 07:41:02,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:02,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:02,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:41:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:02,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:02,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:02,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 07:41:02,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:02,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:02,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:02,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:02,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:02,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:02,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:02,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:02,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:41:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:02,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:02,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:02,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:02,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:02,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:02,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:02,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:02,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:02,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:02,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:02,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:41:02,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 07:41:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:02,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:02,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:02,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:41:02,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:02,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:41:02,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:02,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:02,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:02,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:41:02,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:02,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:02,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-25 07:41:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:02,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:02,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:02,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:02,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:02,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:02,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:02,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:02,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:02,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:41:02,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:02,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:02,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-09-25 07:41:02,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:02,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:41:02,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:41:02,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:41:02,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:41:02,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:41:02,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:41:02,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:41:02,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:41:02,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:41:02,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:41:02,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:41:02,520 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 07:41:02,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760717423] [2020-09-25 07:41:02,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:41:02,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 07:41:02,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426025705] [2020-09-25 07:41:02,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 07:41:02,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:41:02,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 07:41:02,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:41:02,524 INFO L87 Difference]: Start difference. First operand 643 states and 720 transitions. Second operand 11 states. [2020-09-25 07:41:04,446 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:41:04,774 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 07:41:05,126 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 07:41:05,477 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:41:05,808 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:41:06,093 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:41:07,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:41:07,521 INFO L93 Difference]: Finished difference Result 1360 states and 1640 transitions. [2020-09-25 07:41:07,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 07:41:07,523 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 234 [2020-09-25 07:41:07,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:41:07,532 INFO L225 Difference]: With dead ends: 1360 [2020-09-25 07:41:07,532 INFO L226 Difference]: Without dead ends: 832 [2020-09-25 07:41:07,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-25 07:41:07,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2020-09-25 07:41:07,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 662. [2020-09-25 07:41:07,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 662 states. [2020-09-25 07:41:07,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 740 transitions. [2020-09-25 07:41:07,632 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 740 transitions. Word has length 234 [2020-09-25 07:41:07,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:41:07,632 INFO L479 AbstractCegarLoop]: Abstraction has 662 states and 740 transitions. [2020-09-25 07:41:07,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 07:41:07,633 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 740 transitions. [2020-09-25 07:41:07,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-09-25 07:41:07,637 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:41:07,637 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 07:41:07,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:41:07,638 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:41:07,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:41:07,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1802126292, now seen corresponding path program 1 times [2020-09-25 07:41:07,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:41:07,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [914619508] [2020-09-25 07:41:07,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:41:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:41:07,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking...