/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:34:00,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:34:00,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:34:00,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:34:00,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:34:00,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:34:00,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:34:00,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:34:00,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:34:00,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:34:00,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:34:00,262 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:34:00,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:34:00,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:34:00,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:34:00,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:34:00,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:34:00,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:34:00,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:34:00,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:34:00,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:34:00,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:34:00,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:34:00,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:34:00,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:34:00,280 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:34:00,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:34:00,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:34:00,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:34:00,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:34:00,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:34:00,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:34:00,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:34:00,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:34:00,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:34:00,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:34:00,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:34:00,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:34:00,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:34:00,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:34:00,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:34:00,292 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:34:00,319 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:34:00,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:34:00,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:34:00,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:34:00,321 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:34:00,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:34:00,322 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:34:00,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:34:00,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:34:00,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:34:00,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:34:00,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:34:00,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:34:00,323 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:34:00,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:34:00,324 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:34:00,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:34:00,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:34:00,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:34:00,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:34:00,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:34:00,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:34:00,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:34:00,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:34:00,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:34:00,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:34:00,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:34:00,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:34:00,329 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:34:00,329 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:34:00,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:34:00,846 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:34:00,851 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:34:00,853 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:34:00,855 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:34:00,856 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-09-25 07:34:00,956 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/416bcad80/4b74641f78ab4b44b492b5ecf6518c17/FLAG7b2f7522f [2020-09-25 07:34:01,585 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:34:01,587 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-09-25 07:34:01,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/416bcad80/4b74641f78ab4b44b492b5ecf6518c17/FLAG7b2f7522f [2020-09-25 07:34:01,850 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/416bcad80/4b74641f78ab4b44b492b5ecf6518c17 [2020-09-25 07:34:01,863 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:34:01,868 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:34:01,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:34:01,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:34:01,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:34:01,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:34:01" (1/1) ... [2020-09-25 07:34:01,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:34:01, skipping insertion in model container [2020-09-25 07:34:01,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:34:01" (1/1) ... [2020-09-25 07:34:01,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:34:01,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:34:02,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:34:02,364 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:34:02,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:34:02,688 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:34:02,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:34:02 WrapperNode [2020-09-25 07:34:02,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:34:02,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:34:02,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:34:02,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:34:02,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:34:02" (1/1) ... [2020-09-25 07:34:02,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:34:02" (1/1) ... [2020-09-25 07:34:02,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:34:02" (1/1) ... [2020-09-25 07:34:02,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:34:02" (1/1) ... [2020-09-25 07:34:02,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:34:02" (1/1) ... [2020-09-25 07:34:02,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:34:02" (1/1) ... [2020-09-25 07:34:02,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:34:02" (1/1) ... [2020-09-25 07:34:02,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:34:02,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:34:02,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:34:02,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:34:02,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:34:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:34:02,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:34:02,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:34:02,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:34:02,880 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:34:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:34:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:34:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:34:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:34:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:34:02,882 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:34:02,882 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:34:02,882 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:34:02,882 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 07:34:02,882 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:34:02,883 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:34:02,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:34:02,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:34:02,883 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:34:02,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:34:02,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 07:34:02,884 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:34:02,884 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 07:34:02,884 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:34:02,885 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:34:02,885 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:34:02,885 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:34:02,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:34:02,885 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:34:02,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:34:02,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:34:02,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 07:34:02,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:34:02,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:34:02,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:34:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:34:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:34:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:34:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:34:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:34:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:34:02,888 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:34:02,888 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:34:02,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:34:02,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 07:34:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:34:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:34:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:34:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:34:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:34:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:34:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:34:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:34:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:34:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:34:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:34:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 07:34:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:34:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:34:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:34:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:34:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:34:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:34:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 07:34:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 07:34:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:34:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:34:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:34:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:34:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 07:34:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:34:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:34:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 07:34:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:34:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:34:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:34:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:34:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:34:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:34:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:34:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:34:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:34:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:34:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:34:02,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:34:02,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:34:02,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:34:02,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:34:02,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:34:02,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:34:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:34:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:34:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:34:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:34:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:34:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:34:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:34:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:34:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:34:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:34:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:34:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:34:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:34:04,232 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:34:04,232 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:34:04,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:34:04 BoogieIcfgContainer [2020-09-25 07:34:04,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:34:04,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:34:04,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:34:04,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:34:04,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:34:01" (1/3) ... [2020-09-25 07:34:04,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@763542f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:34:04, skipping insertion in model container [2020-09-25 07:34:04,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:34:02" (2/3) ... [2020-09-25 07:34:04,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@763542f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:34:04, skipping insertion in model container [2020-09-25 07:34:04,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:34:04" (3/3) ... [2020-09-25 07:34:04,252 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2020-09-25 07:34:04,267 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:34:04,280 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:34:04,308 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:34:04,343 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:34:04,343 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:34:04,343 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:34:04,343 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:34:04,343 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:34:04,344 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:34:04,344 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:34:04,344 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:34:04,374 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-25 07:34:04,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 07:34:04,395 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:34:04,397 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] [2020-09-25 07:34:04,397 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:34:04,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:34:04,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1409886201, now seen corresponding path program 1 times [2020-09-25 07:34:04,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:34:04,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584931464] [2020-09-25 07:34:04,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:34:04,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:04,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:05,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:06,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:09,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:09,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 07:34:09,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:34:09,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 07:34:09,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:09,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:09,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:09,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:34:09,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:09,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 07:34:10,444 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:34:10,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:34:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:10,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:10,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:10,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:34:10,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:10,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-25 07:34:10,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:10,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:10,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:10,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:10,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:10,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:10,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:34:10,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:10,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:10,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:10,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:34:10,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:10,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:34:10,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:10,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:10,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:10,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:10,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:10,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:10,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:34:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:10,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:10,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:10,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:34:10,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:10,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:34:10,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:10,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:10,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:10,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:10,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:10,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:10,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:34:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:10,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:10,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:10,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:34:10,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:10,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:34:10,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:10,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:10,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:10,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:10,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:10,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:10,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:34:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:10,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:10,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:10,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:34:10,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:10,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:34:10,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:10,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:10,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:10,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:10,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:10,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:10,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:34:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:10,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:10,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:10,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:34:10,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:10,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:34:10,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:10,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:10,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:10,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:34:10,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:10,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:10,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:34:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:10,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:10,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:10,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:34:10,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:10,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:34:10,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:10,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:10,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:10,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:34:10,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:10,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:10,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 07:34:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:10,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:10,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:10,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:34:10,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:10,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:34:10,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:10,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:10,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:10,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:34:10,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:10,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:10,841 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 07:34:10,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1584931464] [2020-09-25 07:34:10,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:34:10,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:34:10,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24602324] [2020-09-25 07:34:10,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:34:10,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:34:10,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:34:10,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:34:10,883 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 3 states. [2020-09-25 07:34:12,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:34:12,626 INFO L93 Difference]: Finished difference Result 596 states and 710 transitions. [2020-09-25 07:34:12,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:34:12,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 07:34:12,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:34:12,651 INFO L225 Difference]: With dead ends: 596 [2020-09-25 07:34:12,651 INFO L226 Difference]: Without dead ends: 359 [2020-09-25 07:34:12,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:34:12,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-09-25 07:34:12,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 311. [2020-09-25 07:34:12,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2020-09-25 07:34:12,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 343 transitions. [2020-09-25 07:34:12,784 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 343 transitions. Word has length 153 [2020-09-25 07:34:12,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:34:12,785 INFO L479 AbstractCegarLoop]: Abstraction has 311 states and 343 transitions. [2020-09-25 07:34:12,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:34:12,785 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 343 transitions. [2020-09-25 07:34:12,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 07:34:12,790 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:34:12,791 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] [2020-09-25 07:34:12,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:34:12,791 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:34:12,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:34:12,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1484490913, now seen corresponding path program 1 times [2020-09-25 07:34:12,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:34:12,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [836280132] [2020-09-25 07:34:12,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:34:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:12,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:12,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:14,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:17,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:17,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 07:34:17,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:34:17,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5080 [2020-09-25 07:34:17,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:17,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:17,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:34:17,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:34:17,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:34:17,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:18,220 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:34:18,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:34:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:18,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:18,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:18,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:34:18,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:18,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 07:34:18,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:18,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:18,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:18,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:18,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:18,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:18,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:34:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:18,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:18,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:18,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:34:18,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:18,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:34:18,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:18,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:18,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:18,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:18,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:18,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:18,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:34:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:18,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:18,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:18,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:34:18,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:18,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:34:18,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:18,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:18,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:18,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:18,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:18,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:18,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:34:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:18,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:18,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:18,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:34:18,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:18,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:34:18,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:18,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:18,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:18,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:18,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:18,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:18,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:34:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:18,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:18,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:18,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:34:18,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:18,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:34:18,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:18,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:18,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:18,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:18,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:18,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:18,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 07:34:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:18,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:18,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:18,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:34:18,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:18,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:34:18,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:18,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:18,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:18,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:34:18,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:18,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:34:18,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 07:34:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:18,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:18,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:18,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:34:18,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:18,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:34:18,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:18,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:18,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:18,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:34:18,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:18,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:18,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 07:34:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:18,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:18,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:18,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:34:18,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:18,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:34:18,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:18,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:18,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:18,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:34:18,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:18,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:18,460 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 07:34:18,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [836280132] [2020-09-25 07:34:18,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:34:18,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:34:18,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812096537] [2020-09-25 07:34:18,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:34:18,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:34:18,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:34:18,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:34:18,465 INFO L87 Difference]: Start difference. First operand 311 states and 343 transitions. Second operand 4 states. [2020-09-25 07:34:19,130 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:34:20,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:34:20,668 INFO L93 Difference]: Finished difference Result 503 states and 573 transitions. [2020-09-25 07:34:20,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:34:20,675 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 07:34:20,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:34:20,680 INFO L225 Difference]: With dead ends: 503 [2020-09-25 07:34:20,681 INFO L226 Difference]: Without dead ends: 342 [2020-09-25 07:34:20,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:34:20,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-09-25 07:34:20,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 301. [2020-09-25 07:34:20,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-09-25 07:34:20,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 330 transitions. [2020-09-25 07:34:20,772 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 330 transitions. Word has length 154 [2020-09-25 07:34:20,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:34:20,776 INFO L479 AbstractCegarLoop]: Abstraction has 301 states and 330 transitions. [2020-09-25 07:34:20,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:34:20,776 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 330 transitions. [2020-09-25 07:34:20,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 07:34:20,782 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:34:20,783 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] [2020-09-25 07:34:20,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:34:20,783 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:34:20,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:34:20,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1631977851, now seen corresponding path program 1 times [2020-09-25 07:34:20,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:34:20,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087167405] [2020-09-25 07:34:20,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:34:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:20,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:21,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:23,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:23,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 07:34:23,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:34:23,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2918 [2020-09-25 07:34:23,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:23,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:23,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:34:23,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:34:23,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:34:23,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:24,173 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:34:24,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:34:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:24,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:24,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:24,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:34:24,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:24,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 07:34:24,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:24,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:24,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:24,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:24,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:24,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:24,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:34:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:24,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:24,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:24,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:34:24,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:24,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:34:24,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:24,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:24,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:24,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:24,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:24,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:34:24,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:34:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:24,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:24,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:24,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:34:24,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:24,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:34:24,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:24,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:24,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:24,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:24,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:24,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:24,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:34:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:24,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:24,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:24,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:34:24,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:24,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:34:24,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:24,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:24,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:24,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:24,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:24,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:34:24,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:34:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:24,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:24,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:24,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:34:24,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:24,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:34:24,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:24,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:24,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:24,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:24,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:24,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:34:24,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:34:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:24,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:24,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:24,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:34:24,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:24,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:34:24,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:24,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:24,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:34:24,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:24,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:34:24,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:24,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:34:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:24,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:24,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:24,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:34:24,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:24,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:34:24,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:24,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:24,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:24,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:34:24,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:24,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:24,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 07:34:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:24,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:24,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:24,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:34:24,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:24,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:34:24,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:24,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:24,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:34:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:24,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:24,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 07:34:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:24,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:24,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:24,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:34:24,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:24,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:34:24,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:24,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:24,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:24,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:34:24,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:24,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:24,457 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 07:34:24,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087167405] [2020-09-25 07:34:24,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:34:24,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:34:24,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27944659] [2020-09-25 07:34:24,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:34:24,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:34:24,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:34:24,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:34:24,463 INFO L87 Difference]: Start difference. First operand 301 states and 330 transitions. Second operand 5 states. [2020-09-25 07:34:25,018 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:34:27,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:34:27,645 INFO L93 Difference]: Finished difference Result 761 states and 887 transitions. [2020-09-25 07:34:27,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:34:27,649 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 07:34:27,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:34:27,654 INFO L225 Difference]: With dead ends: 761 [2020-09-25 07:34:27,654 INFO L226 Difference]: Without dead ends: 570 [2020-09-25 07:34:27,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:34:27,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-09-25 07:34:27,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 482. [2020-09-25 07:34:27,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-09-25 07:34:27,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 541 transitions. [2020-09-25 07:34:27,770 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 541 transitions. Word has length 167 [2020-09-25 07:34:27,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:34:27,770 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 541 transitions. [2020-09-25 07:34:27,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:34:27,771 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 541 transitions. [2020-09-25 07:34:27,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 07:34:27,774 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:34:27,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:34:27,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:34:27,775 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:34:27,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:34:27,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1733471064, now seen corresponding path program 1 times [2020-09-25 07:34:27,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:34:27,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297231135] [2020-09-25 07:34:27,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:34:27,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:27,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:29,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:29,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 07:34:29,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:29,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1736 [2020-09-25 07:34:29,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:29,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:29,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 07:34:29,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 07:34:29,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 07:34:29,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:29,971 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:34:29,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:34:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:30,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:30,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:30,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:34:30,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:30,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-25 07:34:30,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:30,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:30,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:34:30,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:30,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 07:34:30,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:30,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:34:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:30,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:30,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:30,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:34:30,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:30,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:34:30,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:30,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:30,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:34:30,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:30,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:34:30,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:30,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:34:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:30,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:30,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:30,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:34:30,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:30,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:34:30,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:30,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:30,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:34:30,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:30,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:34:30,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:30,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:34:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:30,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:30,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:30,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:34:30,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:30,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:34:30,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:30,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:30,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:34:30,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:30,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:34:30,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:30,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:34:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:30,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:30,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:30,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:34:30,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:30,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:34:30,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:30,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:30,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:34:30,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:30,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:34:30,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:34:30,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 07:34:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:30,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:30,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:30,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:34:30,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:30,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:34:30,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:30,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:30,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:34:30,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:30,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:34:30,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:30,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 07:34:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:30,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:30,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:30,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:34:30,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:30,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:34:30,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:30,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:30,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:34:30,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:30,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:34:30,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:30,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 07:34:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:30,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:30,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:30,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:34:30,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:30,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:34:30,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:30,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:30,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:34:30,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:30,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:34:30,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:30,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 07:34:30,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:30,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:30,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:30,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:34:30,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:30,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:34:30,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:30,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:30,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:30,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:34:30,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:30,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:30,609 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 07:34:30,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297231135] [2020-09-25 07:34:30,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:34:30,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:34:30,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971969877] [2020-09-25 07:34:30,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:34:30,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:34:30,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:34:30,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:34:30,614 INFO L87 Difference]: Start difference. First operand 482 states and 541 transitions. Second operand 9 states. [2020-09-25 07:34:31,312 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:34:33,709 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:34:34,103 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:34:34,540 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:34:34,937 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:34:35,259 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:34:35,595 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:34:35,927 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:34:37,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:34:37,374 INFO L93 Difference]: Finished difference Result 1328 states and 1597 transitions. [2020-09-25 07:34:37,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 07:34:37,375 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-25 07:34:37,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:34:37,382 INFO L225 Difference]: With dead ends: 1328 [2020-09-25 07:34:37,382 INFO L226 Difference]: Without dead ends: 956 [2020-09-25 07:34:37,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 07:34:37,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2020-09-25 07:34:37,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 849. [2020-09-25 07:34:37,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2020-09-25 07:34:37,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 975 transitions. [2020-09-25 07:34:37,537 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 975 transitions. Word has length 172 [2020-09-25 07:34:37,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:34:37,539 INFO L479 AbstractCegarLoop]: Abstraction has 849 states and 975 transitions. [2020-09-25 07:34:37,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:34:37,540 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 975 transitions. [2020-09-25 07:34:37,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 07:34:37,556 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:34:37,556 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:34:37,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:34:37,557 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:34:37,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:34:37,557 INFO L82 PathProgramCache]: Analyzing trace with hash 468409622, now seen corresponding path program 1 times [2020-09-25 07:34:37,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:34:37,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804343668] [2020-09-25 07:34:37,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:34:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:37,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:37,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:39,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:40,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:42,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:42,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 07:34:42,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:34:42,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 07:34:42,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:42,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:42,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:34:42,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 07:34:42,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 07:34:42,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:42,940 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:34:42,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:34:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:42,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:43,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:43,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:34:43,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:43,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 07:34:43,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:43,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:43,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:43,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:43,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:43,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:43,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:34:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:43,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:43,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:43,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:34:43,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:43,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:34:43,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:43,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:43,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:43,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:43,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:43,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:43,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:34:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:43,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:43,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:43,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:34:43,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:43,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:34:43,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:43,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:43,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:43,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:43,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:43,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:43,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:34:43,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:43,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:43,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:43,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:34:43,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:43,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:34:43,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:43,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:43,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:43,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:43,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:43,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:34:43,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:34:43,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:43,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:43,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:43,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:34:43,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:43,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:34:43,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:43,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:43,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:43,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:43,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:43,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:43,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 07:34:43,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:43,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:43,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:43,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:34:43,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:43,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:34:43,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:43,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:43,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:34:43,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:43,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:34:43,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:43,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:34:43,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:43,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:43,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:43,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:34:43,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:43,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:34:43,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:43,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:43,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:34:43,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:43,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:34:43,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:34:43,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 07:34:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:43,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:43,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:43,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:34:43,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:43,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:34:43,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:43,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:43,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:34:43,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:43,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:34:43,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:43,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 07:34:43,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:43,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:43,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:43,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:34:43,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:43,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:34:43,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:43,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:43,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:34:43,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:43,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:34:43,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:43,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 07:34:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:34:43,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:34:43,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:34:43,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:34:43,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:34:43,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:34:43,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:34:43,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:34:43,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:34:43,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:34:43,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:34:43,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:34:43,279 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 07:34:43,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804343668] [2020-09-25 07:34:43,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:34:43,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:34:43,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504907905] [2020-09-25 07:34:43,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:34:43,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:34:43,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:34:43,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:34:43,282 INFO L87 Difference]: Start difference. First operand 849 states and 975 transitions. Second operand 10 states. [2020-09-25 07:34:44,343 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:34:46,391 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:34:46,717 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:34:47,034 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:34:47,411 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191