/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:13:54,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:13:54,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:13:54,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:13:54,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:13:54,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:13:54,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:13:54,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:13:54,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:13:54,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:13:54,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:13:54,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:13:54,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:13:54,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:13:54,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:13:54,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:13:54,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:13:54,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:13:54,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:13:54,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:13:54,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:13:54,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:13:54,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:13:54,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:13:54,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:13:54,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:13:54,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:13:54,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:13:54,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:13:54,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:13:54,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:13:54,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:13:54,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:13:54,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:13:54,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:13:54,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:13:54,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:13:54,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:13:54,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:13:54,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:13:54,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:13:54,945 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:13:54,987 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:13:54,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:13:54,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:13:54,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:13:54,989 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:13:54,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:13:54,990 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:13:54,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:13:54,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:13:54,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:13:54,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:13:54,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:13:54,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:13:54,993 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:13:54,993 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:13:54,993 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:13:54,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:13:54,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:13:54,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:13:54,994 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:13:54,994 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:13:54,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:13:54,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:13:54,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:13:54,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:13:54,996 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:13:54,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:13:54,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:13:54,997 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:13:54,997 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:13:55,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:13:55,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:13:55,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:13:55,479 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:13:55,480 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:13:55,481 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product26.cil.c [2020-09-25 13:13:55,572 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/93cad233e/5e153058914a44ba8092c8950155c578/FLAGb90ece3de [2020-09-25 13:13:56,170 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:13:56,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product26.cil.c [2020-09-25 13:13:56,186 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/93cad233e/5e153058914a44ba8092c8950155c578/FLAGb90ece3de [2020-09-25 13:13:56,466 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/93cad233e/5e153058914a44ba8092c8950155c578 [2020-09-25 13:13:56,478 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:13:56,484 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:13:56,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:13:56,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:13:56,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:13:56,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:13:56" (1/1) ... [2020-09-25 13:13:56,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e0a100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:56, skipping insertion in model container [2020-09-25 13:13:56,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:13:56" (1/1) ... [2020-09-25 13:13:56,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:13:56,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:13:56,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:13:57,040 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:13:57,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:13:57,163 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:13:57,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:57 WrapperNode [2020-09-25 13:13:57,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:13:57,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:13:57,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:13:57,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:13:57,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:57" (1/1) ... [2020-09-25 13:13:57,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:57" (1/1) ... [2020-09-25 13:13:57,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:57" (1/1) ... [2020-09-25 13:13:57,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:57" (1/1) ... [2020-09-25 13:13:57,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:57" (1/1) ... [2020-09-25 13:13:57,244 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:57" (1/1) ... [2020-09-25 13:13:57,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:57" (1/1) ... [2020-09-25 13:13:57,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:13:57,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:13:57,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:13:57,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:13:57,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:13:57,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:13:57,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:13:57,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:13:57,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:13:57,332 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:13:57,332 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:13:57,332 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:13:57,332 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:13:57,333 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 13:13:57,333 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:13:57,333 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:13:57,333 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:13:57,333 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:13:57,334 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:13:57,334 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 13:13:57,334 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 13:13:57,334 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:13:57,334 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:13:57,335 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:13:57,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:13:57,335 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:13:57,335 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:13:57,336 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 13:13:57,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 13:13:57,336 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:13:57,336 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:13:57,336 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:13:57,337 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:13:57,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:13:57,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:13:57,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:13:57,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:13:57,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:13:57,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:13:57,338 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:13:57,338 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:13:57,338 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:13:57,338 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:13:57,338 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:13:57,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:13:57,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:13:57,339 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:13:57,339 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:13:57,339 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:13:57,339 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:13:57,340 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 13:13:57,340 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:13:57,340 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:13:57,340 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:13:57,340 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:13:57,340 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:13:57,341 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:13:57,341 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 13:13:57,341 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:13:57,341 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:13:57,341 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:13:57,341 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:13:57,342 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 13:13:57,342 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:13:57,342 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:13:57,342 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 13:13:57,342 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 13:13:57,342 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:13:57,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:13:57,343 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:13:57,343 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:13:57,343 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:13:57,343 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:13:57,343 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:13:57,344 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:13:57,344 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:13:57,344 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:13:57,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:13:57,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:13:57,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:13:57,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:13:57,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:13:57,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:13:57,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:13:57,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:13:57,345 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:13:57,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:13:57,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:13:57,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:13:57,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:13:57,346 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:13:57,346 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:13:57,347 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:13:57,347 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:13:57,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:13:57,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:13:57,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:13:58,448 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:13:58,449 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:13:58,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:13:58 BoogieIcfgContainer [2020-09-25 13:13:58,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:13:58,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:13:58,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:13:58,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:13:58,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:13:56" (1/3) ... [2020-09-25 13:13:58,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a463626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:13:58, skipping insertion in model container [2020-09-25 13:13:58,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:57" (2/3) ... [2020-09-25 13:13:58,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a463626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:13:58, skipping insertion in model container [2020-09-25 13:13:58,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:13:58" (3/3) ... [2020-09-25 13:13:58,466 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product26.cil.c [2020-09-25 13:13:58,478 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:13:58,489 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:13:58,513 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:13:58,550 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:13:58,551 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:13:58,551 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:13:58,551 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:13:58,551 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:13:58,551 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:13:58,551 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:13:58,552 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:13:58,583 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states. [2020-09-25 13:13:58,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:13:58,600 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:13:58,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:13:58,602 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:13:58,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:13:58,609 INFO L82 PathProgramCache]: Analyzing trace with hash 427114598, now seen corresponding path program 1 times [2020-09-25 13:13:58,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:13:58,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785379832] [2020-09-25 13:13:58,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:13:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:59,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:59,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:00,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:01,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:04,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:04,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:14:04,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:14:04,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-25 13:14:04,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:04,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:04,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:14:04,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:14:04,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 13:14:04,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 13:14:04,580 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:14:04,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:14:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:04,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:04,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:04,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:14:04,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:04,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-09-25 13:14:04,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:04,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:04,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:04,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:04,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:14:04,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:05,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:14:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:05,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:05,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:05,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:05,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:05,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:14:05,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:05,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:05,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:05,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:14:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:05,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:05,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:05,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:05,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:05,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:05,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:05,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:05,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:05,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:05,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:05,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:05,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:14:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:05,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:05,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:05,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:05,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:05,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:14:05,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:05,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:05,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:05,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:05,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:05,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:05,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:14:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:05,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:05,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:05,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:05,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:05,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:05,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:05,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:05,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:05,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:05,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:05,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:05,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:14:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:05,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:05,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:05,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:05,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:05,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:05,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:05,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:05,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:05,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:14:05,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:05,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:05,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:14:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:05,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:05,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:05,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:05,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:05,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:05,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:05,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:05,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:05,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:14:05,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:05,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:05,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:14:05,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785379832] [2020-09-25 13:14:05,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:14:05,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:14:05,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519549502] [2020-09-25 13:14:05,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:14:05,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:14:05,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:14:05,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:14:05,240 INFO L87 Difference]: Start difference. First operand 279 states. Second operand 4 states. [2020-09-25 13:14:05,850 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:14:06,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:14:06,766 INFO L93 Difference]: Finished difference Result 422 states and 503 transitions. [2020-09-25 13:14:06,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:14:06,769 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 13:14:06,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:14:06,789 INFO L225 Difference]: With dead ends: 422 [2020-09-25 13:14:06,789 INFO L226 Difference]: Without dead ends: 268 [2020-09-25 13:14:06,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:14:06,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-09-25 13:14:06,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 228. [2020-09-25 13:14:06,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-25 13:14:06,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 244 transitions. [2020-09-25 13:14:06,918 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 244 transitions. Word has length 142 [2020-09-25 13:14:06,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:14:06,919 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 244 transitions. [2020-09-25 13:14:06,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:14:06,920 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 244 transitions. [2020-09-25 13:14:06,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 13:14:06,925 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:14:06,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:14:06,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:14:06,926 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:14:06,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:14:06,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1344879911, now seen corresponding path program 1 times [2020-09-25 13:14:06,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:14:06,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1005957163] [2020-09-25 13:14:06,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:14:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:07,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:07,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:08,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:08,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:11,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:11,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 13:14:11,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:14:11,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 13:14:11,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:11,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:11,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:14:11,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 13:14:11,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-25 13:14:11,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:12,360 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:14:12,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:14:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:12,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:12,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:12,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:14:12,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:12,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-09-25 13:14:12,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:12,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:12,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:12,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:12,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 13:14:12,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:12,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:14:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:12,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:12,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:12,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:12,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:12,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:12,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:12,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:12,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:12,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:12,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:12,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:12,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:14:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:12,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:12,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:12,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:12,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:12,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:12,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:12,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:12,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:12,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:12,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:12,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:12,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:14:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:12,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:12,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:12,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:12,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:12,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:14:12,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:12,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:12,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:12,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:12,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:12,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:12,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:14:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:12,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:12,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:12,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:12,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:12,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:12,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:12,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:12,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:12,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:12,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:12,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:12,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:14:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:12,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:12,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:12,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:14:12,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:12,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:12,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:12,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:12,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:12,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:12,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:14:12,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:12,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:14:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:12,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:12,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:12,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:12,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:12,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:14:12,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:12,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:12,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:12,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:12,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:12,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:12,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:14:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:12,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:12,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:12,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:12,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:12,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:14:12,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:12,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:12,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:14:12,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:12,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:12,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:12,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 13:14:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:12,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:12,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:12,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:12,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:12,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:12,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:12,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:12,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:12,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:14:12,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:12,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:12,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:14:12,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1005957163] [2020-09-25 13:14:12,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:14:12,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:14:12,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473990600] [2020-09-25 13:14:12,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:14:12,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:14:12,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:14:12,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:14:12,929 INFO L87 Difference]: Start difference. First operand 228 states and 244 transitions. Second operand 9 states. [2020-09-25 13:14:13,437 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:14:14,851 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:14:15,464 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 13:14:15,843 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:14:16,280 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:16,539 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:14:16,857 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:14:17,160 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:14:18,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:14:18,544 INFO L93 Difference]: Finished difference Result 553 states and 678 transitions. [2020-09-25 13:14:18,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 13:14:18,545 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 13:14:18,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:14:18,554 INFO L225 Difference]: With dead ends: 553 [2020-09-25 13:14:18,554 INFO L226 Difference]: Without dead ends: 435 [2020-09-25 13:14:18,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 13:14:18,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-09-25 13:14:18,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 338. [2020-09-25 13:14:18,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-09-25 13:14:18,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 377 transitions. [2020-09-25 13:14:18,633 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 377 transitions. Word has length 151 [2020-09-25 13:14:18,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:14:18,634 INFO L479 AbstractCegarLoop]: Abstraction has 338 states and 377 transitions. [2020-09-25 13:14:18,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:14:18,634 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 377 transitions. [2020-09-25 13:14:18,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 13:14:18,639 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:14:18,639 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:14:18,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:14:18,640 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:14:18,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:14:18,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1226141107, now seen corresponding path program 1 times [2020-09-25 13:14:18,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:14:18,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [377497697] [2020-09-25 13:14:18,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:14:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:18,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:18,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:18,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:23,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:23,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 13:14:23,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:14:23,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 13:14:23,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:23,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:23,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:14:23,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 13:14:23,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 13:14:23,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:24,057 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:14:24,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:14:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:24,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:24,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:24,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:14:24,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:24,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 13:14:24,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:24,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:14:24,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:24,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:14:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:24,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:24,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:24,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:24,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:24,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:24,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:24,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:24,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:24,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:24,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:24,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:14:24,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:14:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:24,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:24,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:24,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:24,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:24,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:24,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:24,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:24,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:24,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:24,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:24,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:24,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:14:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:24,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:24,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:24,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:24,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:24,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:14:24,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:24,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:24,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:24,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:24,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:24,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:24,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:14:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:24,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:24,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:24,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:24,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:24,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:24,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:24,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:24,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:24,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:24,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:24,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:14:24,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 13:14:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:24,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:24,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:24,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:14:24,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:24,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:24,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:24,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:24,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:24,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:14:24,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:24,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:24,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 13:14:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:24,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:24,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:24,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:14:24,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:24,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:24,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:24,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:24,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:24,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 13:14:24,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:24,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:24,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:14:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:24,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:24,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:24,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:24,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:24,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:24,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:24,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:24,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:24,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:24,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:24,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 13:14:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:24,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:24,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:24,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:24,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:24,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:24,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:24,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:24,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:24,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:14:24,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:24,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:24,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 13:14:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:24,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:24,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:24,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:24,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:24,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:24,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:24,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:24,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:24,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:14:24,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:24,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:24,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:14:24,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [377497697] [2020-09-25 13:14:24,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:14:24,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 13:14:24,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126493166] [2020-09-25 13:14:24,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 13:14:24,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:14:24,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 13:14:24,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:14:24,542 INFO L87 Difference]: Start difference. First operand 338 states and 377 transitions. Second operand 6 states. [2020-09-25 13:14:25,063 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:14:25,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:14:25,835 INFO L93 Difference]: Finished difference Result 515 states and 603 transitions. [2020-09-25 13:14:25,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 13:14:25,836 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-25 13:14:25,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:14:25,840 INFO L225 Difference]: With dead ends: 515 [2020-09-25 13:14:25,840 INFO L226 Difference]: Without dead ends: 276 [2020-09-25 13:14:25,843 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 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 13:14:25,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-25 13:14:25,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 254. [2020-09-25 13:14:25,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-09-25 13:14:25,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 270 transitions. [2020-09-25 13:14:25,884 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 270 transitions. Word has length 156 [2020-09-25 13:14:25,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:14:25,885 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 270 transitions. [2020-09-25 13:14:25,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 13:14:25,885 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 270 transitions. [2020-09-25 13:14:25,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 13:14:25,889 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:14:25,890 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:14:25,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:14:25,890 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:14:25,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:14:25,891 INFO L82 PathProgramCache]: Analyzing trace with hash 397272961, now seen corresponding path program 1 times [2020-09-25 13:14:25,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:14:25,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2125911341] [2020-09-25 13:14:25,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:14:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:25,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:27,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:27,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:27,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:30,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:30,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 13:14:30,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:14:30,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 13:14:30,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:30,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:30,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:14:30,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 13:14:30,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-25 13:14:30,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:31,407 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:14:31,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:14:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:31,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:31,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:31,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:14:31,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:31,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-25 13:14:31,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:31,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:31,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:31,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:14:31,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:31,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:14:31,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:31,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:31,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:31,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:31,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:31,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:14:31,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:31,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:31,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:31,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:31,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:31,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:31,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:14:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:31,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:31,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:31,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:31,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:31,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:14:31,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:31,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:31,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:31,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:31,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:31,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:31,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:14:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:31,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:31,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:31,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:31,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:31,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:14:31,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:31,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:31,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:31,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:31,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:31,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:14:31,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:14:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:31,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:31,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:31,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:31,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:31,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:31,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:31,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:31,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:31,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:31,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:31,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:31,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 13:14:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:31,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:31,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:31,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:14:31,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:31,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:14:31,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:31,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:31,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:31,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:31,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:14:31,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:31,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:14:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:31,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:31,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:31,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:14:31,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:31,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:14:31,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:31,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:31,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:31,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:31,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:14:31,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:31,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 13:14:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:31,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:31,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:31,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:31,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:14:31,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:14:31,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:14:31,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:31,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:31,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:14:31,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:14:31,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:14:31,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:31,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:14:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:31,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:31,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:31,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:31,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:31,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:31,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:31,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:31,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:31,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:31,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:31,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:31,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 13:14:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:31,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:31,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:31,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:31,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:31,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:31,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:31,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:31,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:31,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:31,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:31,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:31,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 13:14:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:31,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:31,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:31,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:31,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:31,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:14:31,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:31,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:31,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:14:31,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:31,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:31,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:31,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:14:31,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2125911341] [2020-09-25 13:14:31,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:14:31,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 13:14:31,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192874275] [2020-09-25 13:14:31,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 13:14:31,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:14:31,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 13:14:31,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:14:31,987 INFO L87 Difference]: Start difference. First operand 254 states and 270 transitions. Second operand 11 states. [2020-09-25 13:14:32,581 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:14:33,837 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:34,175 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:14:34,511 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:34,865 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:14:35,173 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:35,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:14:35,550 INFO L93 Difference]: Finished difference Result 323 states and 365 transitions. [2020-09-25 13:14:35,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 13:14:35,551 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 169 [2020-09-25 13:14:35,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:14:35,552 INFO L225 Difference]: With dead ends: 323 [2020-09-25 13:14:35,552 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 13:14:35,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2020-09-25 13:14:35,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 13:14:35,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 13:14:35,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 13:14:35,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 13:14:35,555 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 169 [2020-09-25 13:14:35,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:14:35,555 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 13:14:35,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 13:14:35,555 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 13:14:35,555 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 13:14:35,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:14:35,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 13:14:35,759 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:35,949 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:36,137 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:36,319 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:36,498 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:36,681 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:36,850 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:37,012 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:37,283 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:14:37,614 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 13:14:37,938 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 13:14:38,260 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 13:14:38,527 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:14:38,781 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:14:39,102 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 13:14:39,356 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:14:39,610 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:14:39,772 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:39,930 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:40,085 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:40,239 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:40,493 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:14:40,748 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:14:41,136 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:14:41,520 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:14:41,679 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:41,837 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:41,994 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:42,157 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:42,310 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:42,450 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:14:42,609 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:42,762 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:42,916 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:43,069 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:43,226 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:43,384 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:43,539 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:43,698 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:43,855 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:44,011 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:44,169 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:44,328 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:44,482 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:44,635 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:44,793 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:44,947 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:45,105 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:45,262 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:45,419 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:45,577 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:45,735 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:46,145 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 10 [2020-09-25 13:14:46,303 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:46,463 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:46,615 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:46,768 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:46,925 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:47,331 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 10