/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --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_spec2_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:46:42,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:46:42,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:46:42,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:46:42,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:46:42,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:46:42,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:46:42,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:46:42,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:46:42,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:46:42,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:46:42,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:46:42,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:46:42,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:46:42,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:46:42,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:46:42,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:46:42,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:46:42,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:46:42,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:46:42,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:46:42,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:46:42,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:46:42,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:46:42,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:46:42,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:46:42,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:46:42,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:46:42,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:46:42,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:46:42,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:46:42,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:46:42,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:46:42,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:46:42,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:46:42,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:46:42,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:46:42,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:46:42,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:46:42,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:46:42,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:46:42,983 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 09:46:43,007 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:46:43,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:46:43,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:46:43,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:46:43,010 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:46:43,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:46:43,010 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:46:43,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:46:43,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:46:43,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:46:43,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:46:43,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:46:43,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:46:43,011 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:46:43,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:46:43,012 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:46:43,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:46:43,012 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:46:43,012 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:46:43,013 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:46:43,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:46:43,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:46:43,013 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:46:43,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:46:43,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:46:43,014 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:46:43,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:46:43,014 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:46:43,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:46:43,015 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:46:43,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:46:43,515 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:46:43,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:46:43,524 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:46:43,526 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:46:43,528 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2020-09-25 09:46:43,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a5b05182/46bc356332874b219db3129896a055ef/FLAG4c436d690 [2020-09-25 09:46:44,223 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:46:44,224 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2020-09-25 09:46:44,239 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a5b05182/46bc356332874b219db3129896a055ef/FLAG4c436d690 [2020-09-25 09:46:44,480 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a5b05182/46bc356332874b219db3129896a055ef [2020-09-25 09:46:44,493 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:46:44,498 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:46:44,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:46:44,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:46:44,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:46:44,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:46:44" (1/1) ... [2020-09-25 09:46:44,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc704b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:46:44, skipping insertion in model container [2020-09-25 09:46:44,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:46:44" (1/1) ... [2020-09-25 09:46:44,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:46:44,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:46:45,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:46:45,128 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:46:45,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:46:45,282 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:46:45,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:46:45 WrapperNode [2020-09-25 09:46:45,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:46:45,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:46:45,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:46:45,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:46:45,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:46:45" (1/1) ... [2020-09-25 09:46:45,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:46:45" (1/1) ... [2020-09-25 09:46:45,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:46:45" (1/1) ... [2020-09-25 09:46:45,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:46:45" (1/1) ... [2020-09-25 09:46:45,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:46:45" (1/1) ... [2020-09-25 09:46:45,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:46:45" (1/1) ... [2020-09-25 09:46:45,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:46:45" (1/1) ... [2020-09-25 09:46:45,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:46:45,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:46:45,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:46:45,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:46:45,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:46:45" (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 09:46:45,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:46:45,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:46:45,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:46:45,468 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:46:45,468 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:46:45,468 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:46:45,469 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:46:45,469 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:46:45,469 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:46:45,469 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:46:45,469 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:46:45,470 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:46:45,470 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:46:45,470 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 09:46:45,470 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:46:45,471 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:46:45,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:46:45,471 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:46:45,471 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:46:45,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:46:45,478 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:46:45,478 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:46:45,478 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:46:45,479 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:46:45,480 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:46:45,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:46:45,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:46:45,480 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:46:45,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 09:46:45,481 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:46:45,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:46:45,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:46:45,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:46:45,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:46:45,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:46:45,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:46:45,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 09:46:45,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 09:46:45,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:46:45,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:46:45,482 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:46:45,482 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:46:45,482 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:46:45,482 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:46:45,483 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:46:45,483 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:46:45,483 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:46:45,483 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:46:45,483 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:46:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:46:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:46:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 09:46:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:46:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:46:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:46:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:46:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:46:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:46:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 09:46:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:46:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:46:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:46:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:46:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:46:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:46:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:46:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 09:46:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:46:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:46:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 09:46:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:46:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:46:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:46:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:46:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:46:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:46:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:46:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:46:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:46:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:46:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:46:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:46:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:46:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:46:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:46:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:46:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:46:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:46:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:46:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:46:46,617 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:46:46,617 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:46:46,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:46:46 BoogieIcfgContainer [2020-09-25 09:46:46,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:46:46,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:46:46,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:46:46,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:46:46,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:46:44" (1/3) ... [2020-09-25 09:46:46,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107cce5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:46:46, skipping insertion in model container [2020-09-25 09:46:46,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:46:45" (2/3) ... [2020-09-25 09:46:46,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107cce5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:46:46, skipping insertion in model container [2020-09-25 09:46:46,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:46:46" (3/3) ... [2020-09-25 09:46:46,634 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2020-09-25 09:46:46,646 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:46:46,658 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:46:46,680 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:46:46,711 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:46:46,711 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:46:46,711 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:46:46,711 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:46:46,711 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:46:46,712 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:46:46,712 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:46:46,712 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:46:46,738 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2020-09-25 09:46:46,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 09:46:46,756 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:46:46,758 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] [2020-09-25 09:46:46,758 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:46:46,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:46:46,766 INFO L82 PathProgramCache]: Analyzing trace with hash -636857616, now seen corresponding path program 1 times [2020-09-25 09:46:46,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:46:46,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962125530] [2020-09-25 09:46:46,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:46:47,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:46:47,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:46:47,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:46:48,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:46:49,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:46:50,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:46:52,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:46:52,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 09:46:52,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:46:52,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 09:46:52,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:46:52,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:46:52,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 09:46:52,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 09:46:52,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 09:46:52,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 09:46:52,821 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:46:52,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:46:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:46:52,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:46:53,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:46:53,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 09:46:53,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:46:53,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-09-25 09:46:53,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:46:53,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:46:53,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:46:53,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:46:53,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 09:46:53,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:46:53,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 09:46:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:46:53,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:46:53,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:46:53,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:46:53,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:46:53,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:46:53,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:46:53,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:46:53,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:46:53,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:46:53,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:46:53,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:46:53,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 09:46:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:46:53,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:46:53,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:46:53,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:46:53,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:46:53,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:46:53,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:46:53,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:46:53,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:46:53,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:46:53,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:46:53,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:46:53,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 09:46:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:46:53,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:46:53,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:46:53,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:46:53,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:46:53,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:46:53,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:46:53,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:46:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:46:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:46:53,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:46:53,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:46:53,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 09:46:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:46:53,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:46:53,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:46:53,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:46:53,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:46:53,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:46:53,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:46:53,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:46:53,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:46:53,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:46:53,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:46:53,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:46:53,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 09:46:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:46:53,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:46:53,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:46:53,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:46:53,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:46:53,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:46:53,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:46:53,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:46:53,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:46:53,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:46:53,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:46:53,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:46:53,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 09:46:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:46:53,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:46:53,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:46:53,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:46:53,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:46:53,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 09:46:53,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:46:53,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:46:53,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:46:53,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:46:53,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:46:53,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:46:53,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 09:46:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:46:53,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:46:53,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:46:53,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:46:53,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:46:53,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:46:53,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:46:53,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:46:53,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:46:53,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:46:53,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:46:53,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:46:53,483 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 09:46:53,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [962125530] [2020-09-25 09:46:53,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:46:53,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 09:46:53,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234610733] [2020-09-25 09:46:53,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 09:46:53,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:46:53,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 09:46:53,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:46:53,522 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 9 states. [2020-09-25 09:46:54,243 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:46:55,408 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:46:55,724 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:46:56,027 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:46:56,409 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:46:56,734 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:46:57,348 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:46:57,683 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:46:58,191 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:46:59,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:46:59,013 INFO L93 Difference]: Finished difference Result 567 states and 688 transitions. [2020-09-25 09:46:59,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 09:46:59,016 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 09:46:59,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:46:59,053 INFO L225 Difference]: With dead ends: 567 [2020-09-25 09:46:59,055 INFO L226 Difference]: Without dead ends: 393 [2020-09-25 09:46:59,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 09:46:59,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2020-09-25 09:46:59,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 329. [2020-09-25 09:46:59,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-09-25 09:46:59,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 362 transitions. [2020-09-25 09:46:59,188 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 362 transitions. Word has length 148 [2020-09-25 09:46:59,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:46:59,189 INFO L479 AbstractCegarLoop]: Abstraction has 329 states and 362 transitions. [2020-09-25 09:46:59,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 09:46:59,189 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 362 transitions. [2020-09-25 09:46:59,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 09:46:59,194 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:46:59,195 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] [2020-09-25 09:46:59,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:46:59,195 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:46:59,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:46:59,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1721434398, now seen corresponding path program 1 times [2020-09-25 09:46:59,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:46:59,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [943940745] [2020-09-25 09:46:59,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:46:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:46:59,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:46:59,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:46:59,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:01,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:04,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:04,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 09:47:04,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:47:04,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 09:47:04,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:04,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:04,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 09:47:04,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 09:47:04,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-25 09:47:04,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:04,633 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:47:04,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:47:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:04,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:04,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:04,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 09:47:04,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:04,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-25 09:47:04,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:04,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:04,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:04,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:04,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 09:47:04,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:04,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 09:47:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:04,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:04,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:04,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:47:04,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:04,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:47:04,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:04,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:04,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:04,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:04,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:47:04,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:04,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 09:47:04,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:04,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:04,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:04,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:47:04,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:04,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:47:04,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:04,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:04,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:04,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:04,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:47:04,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:04,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 09:47:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:04,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:04,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:04,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:47:04,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:04,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:47:04,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:04,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:04,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:04,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:04,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:47:04,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:04,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 09:47:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:04,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:04,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:04,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:47:04,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:04,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:47:04,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:04,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:04,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:04,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:04,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:47:04,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:05,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 09:47:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:05,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:05,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:05,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:47:05,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:05,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:47:05,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:05,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:05,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:05,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:05,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:47:05,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:05,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 09:47:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:05,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:05,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:05,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:47:05,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:05,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:47:05,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:05,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:05,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:05,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:05,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:47:05,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:47:05,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 09:47:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:05,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:05,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:05,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:47:05,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:05,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:47:05,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:05,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:05,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:05,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:05,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:47:05,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:47:05,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 09:47:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:05,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:05,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:05,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:47:05,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:05,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:47:05,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:05,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:47:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:47:05,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:47:05,127 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 09:47:05,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [943940745] [2020-09-25 09:47:05,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:47:05,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 09:47:05,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819703858] [2020-09-25 09:47:05,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 09:47:05,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:47:05,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 09:47:05,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 09:47:05,131 INFO L87 Difference]: Start difference. First operand 329 states and 362 transitions. Second operand 10 states. [2020-09-25 09:47:05,666 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:47:06,949 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:47:07,281 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:47:07,661 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:47:08,036 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 09:47:08,375 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 09:47:09,113 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:47:09,417 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:47:09,805 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:47:10,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:47:10,690 INFO L93 Difference]: Finished difference Result 790 states and 957 transitions. [2020-09-25 09:47:10,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 09:47:10,692 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-09-25 09:47:10,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:47:10,699 INFO L225 Difference]: With dead ends: 790 [2020-09-25 09:47:10,699 INFO L226 Difference]: Without dead ends: 576 [2020-09-25 09:47:10,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-25 09:47:10,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2020-09-25 09:47:10,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 466. [2020-09-25 09:47:10,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-09-25 09:47:10,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 527 transitions. [2020-09-25 09:47:10,825 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 527 transitions. Word has length 163 [2020-09-25 09:47:10,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:47:10,826 INFO L479 AbstractCegarLoop]: Abstraction has 466 states and 527 transitions. [2020-09-25 09:47:10,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 09:47:10,827 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 527 transitions. [2020-09-25 09:47:10,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-25 09:47:10,831 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:47:10,832 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:47:10,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:47:10,832 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:47:10,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:47:10,833 INFO L82 PathProgramCache]: Analyzing trace with hash 306083937, now seen corresponding path program 1 times [2020-09-25 09:47:10,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:47:10,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427275690] [2020-09-25 09:47:10,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:47:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:10,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:11,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:14,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:14,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-09-25 09:47:14,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:47:14,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3799 [2020-09-25 09:47:14,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:14,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:14,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:47:14,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 09:47:14,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-25 09:47:14,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:15,039 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:47:15,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:47:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:15,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:15,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:15,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 09:47:15,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:15,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 09:47:15,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:15,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:15,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:47:15,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:15,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:47:15,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:15,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 09:47:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:15,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:15,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:15,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:47:15,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:15,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:47:15,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:15,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:15,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:47:15,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:15,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:47:15,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:15,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 09:47:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:15,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:15,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:15,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:47:15,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:15,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:47:15,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:15,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:15,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:47:15,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:15,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:47:15,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:15,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 09:47:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:15,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:15,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:15,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:47:15,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:15,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:47:15,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:15,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:47:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:47:15,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:15,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 09:47:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:15,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:15,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:15,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:47:15,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:15,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:47:15,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:15,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:15,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:47:15,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:15,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:47:15,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:15,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 09:47:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:15,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:15,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:15,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:47:15,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:15,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:47:15,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:15,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:15,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:15,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:15,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 09:47:15,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:15,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 09:47:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:15,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:15,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:15,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:47:15,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:15,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:47:15,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:15,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:15,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:15,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:15,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:47:15,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:47:15,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 09:47:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:15,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:15,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:15,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:15,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 09:47:15,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:47:15,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 09:47:15,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:15,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:15,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:15,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:15,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 09:47:15,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:15,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:47:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:15,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:15,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:15,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 09:47:15,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:15,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:47:15,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:15,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:15,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:47:15,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:15,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:47:15,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:15,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:47:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:15,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:15,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:15,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:47:15,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:15,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:47:15,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:15,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:15,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:47:15,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:15,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:47:15,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:15,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 09:47:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:15,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:15,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:15,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:47:15,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:15,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:47:15,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:15,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:15,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:47:15,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:15,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:47:15,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:15,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-25 09:47:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:15,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:15,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:15,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:47:15,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:15,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:47:15,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:15,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:15,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:15,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:15,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:47:15,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:15,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-25 09:47:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:15,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:15,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:15,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:47:15,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:15,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:47:15,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:15,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:15,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:15,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:15,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:47:15,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:15,446 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 09:47:15,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [427275690] [2020-09-25 09:47:15,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:47:15,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 09:47:15,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484417348] [2020-09-25 09:47:15,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:47:15,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:47:15,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:47:15,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:47:15,449 INFO L87 Difference]: Start difference. First operand 466 states and 527 transitions. Second operand 7 states. [2020-09-25 09:47:15,981 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:47:18,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:47:18,539 INFO L93 Difference]: Finished difference Result 1054 states and 1359 transitions. [2020-09-25 09:47:18,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 09:47:18,540 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 196 [2020-09-25 09:47:18,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:47:18,550 INFO L225 Difference]: With dead ends: 1054 [2020-09-25 09:47:18,550 INFO L226 Difference]: Without dead ends: 1051 [2020-09-25 09:47:18,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2020-09-25 09:47:18,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2020-09-25 09:47:18,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 753. [2020-09-25 09:47:18,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2020-09-25 09:47:18,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 883 transitions. [2020-09-25 09:47:18,680 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 883 transitions. Word has length 196 [2020-09-25 09:47:18,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:47:18,681 INFO L479 AbstractCegarLoop]: Abstraction has 753 states and 883 transitions. [2020-09-25 09:47:18,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:47:18,681 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 883 transitions. [2020-09-25 09:47:18,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-09-25 09:47:18,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:47:18,688 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:47:18,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:47:18,689 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:47:18,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:47:18,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1884813283, now seen corresponding path program 1 times [2020-09-25 09:47:18,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:47:18,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [579321669] [2020-09-25 09:47:18,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:47:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:18,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:18,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:20,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:20,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:20,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:20,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:23,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:23,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-09-25 09:47:23,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 09:47:23,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-25 09:47:23,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:23,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 09:47:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-09-25 09:47:23,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:47:24,144 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:47:24,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:47:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:24,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:24,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:24,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 09:47:24,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:24,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-25 09:47:24,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:24,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:24,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:24,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:24,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 09:47:24,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:47:24,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 09:47:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:24,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:24,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:24,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:47:24,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:24,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:47:24,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:24,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:24,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:24,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:24,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:47:24,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:24,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 09:47:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:24,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:24,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:24,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:47:24,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:24,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:47:24,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:24,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:24,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:24,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:24,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:47:24,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:24,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 09:47:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:24,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:24,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:24,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:47:24,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:24,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:47:24,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:24,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:24,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:24,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:24,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:47:24,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:24,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 09:47:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:24,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:24,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:24,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:47:24,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:24,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:47:24,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:24,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:24,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:24,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:24,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:47:24,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:24,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 09:47:24,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:24,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:24,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:24,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:47:24,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:24,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:47:24,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:24,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:24,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:24,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:24,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:47:24,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 09:47:24,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 09:47:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:24,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:24,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:24,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:47:24,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:24,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:47:24,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:24,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:24,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:24,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:24,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:47:24,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:24,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 09:47:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:24,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:24,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:24,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:24,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 09:47:24,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:47:24,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-09-25 09:47:24,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:24,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:24,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:24,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:24,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 09:47:24,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:24,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:47:24,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:24,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:24,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:25,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:25,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 09:47:25,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:47:25,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 09:47:25,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:25,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:25,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:47:25,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 09:47:25,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:47:25,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:25,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:47:25,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:25,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:25,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:25,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 09:47:25,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:25,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 09:47:25,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:25,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:25,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:47:25,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:25,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 09:47:25,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:25,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:47:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:25,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:25,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:25,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:47:25,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:25,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:47:25,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:25,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:25,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:47:25,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:25,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:47:25,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:25,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 09:47:25,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:25,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:25,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:25,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:47:25,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:25,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:47:25,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:25,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:25,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:47:25,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 09:47:25,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:47:25,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:25,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 09:47:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:25,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:25,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:25,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 09:47:25,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:25,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:47:25,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:25,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:25,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:47:25,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:25,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:47:25,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:25,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:47:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:25,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:25,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:25,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:47:25,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:25,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:47:25,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:25,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:25,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:47:25,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:25,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:47:25,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:25,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 09:47:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:25,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:25,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:25,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:47:25,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:25,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:47:25,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:25,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:25,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:47:25,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:25,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:47:25,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:25,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-09-25 09:47:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:25,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:25,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:25,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:47:25,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:25,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:47:25,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:25,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:25,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:47:25,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:47:25,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:47:25,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:25,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-25 09:47:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:25,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:25,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:25,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:47:25,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:25,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:47:25,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:25,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:25,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:47:25,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:47:25,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:47:25,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:25,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-09-25 09:47:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:25,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:25,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:47:25,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:47:25,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:47:25,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:47:25,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:47:25,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:47:25,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:47:25,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:47:25,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:47:25,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:47:25,452 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 09:47:25,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [579321669] [2020-09-25 09:47:25,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:47:25,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 09:47:25,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9595618] [2020-09-25 09:47:25,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 09:47:25,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:47:25,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 09:47:25,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-09-25 09:47:25,457 INFO L87 Difference]: Start difference. First operand 753 states and 883 transitions. Second operand 14 states. [2020-09-25 09:47:26,149 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:47:27,268 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:47:27,627 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 09:47:27,981 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-25 09:47:28,326 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:47:28,669 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 09:47:29,008 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:47:30,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:47:30,921 INFO L93 Difference]: Finished difference Result 1914 states and 2645 transitions. [2020-09-25 09:47:30,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-25 09:47:30,922 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 237 [2020-09-25 09:47:30,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:47:30,934 INFO L225 Difference]: With dead ends: 1914 [2020-09-25 09:47:30,934 INFO L226 Difference]: Without dead ends: 1276 [2020-09-25 09:47:30,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=354, Invalid=978, Unknown=0, NotChecked=0, Total=1332 [2020-09-25 09:47:30,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2020-09-25 09:47:31,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 789. [2020-09-25 09:47:31,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2020-09-25 09:47:31,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 912 transitions. [2020-09-25 09:47:31,033 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 912 transitions. Word has length 237 [2020-09-25 09:47:31,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:47:31,034 INFO L479 AbstractCegarLoop]: Abstraction has 789 states and 912 transitions. [2020-09-25 09:47:31,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 09:47:31,034 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 912 transitions. [2020-09-25 09:47:31,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-09-25 09:47:31,040 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:47:31,040 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:47:31,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:47:31,041 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:47:31,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:47:31,041 INFO L82 PathProgramCache]: Analyzing trace with hash -274179366, now seen corresponding path program 1 times [2020-09-25 09:47:31,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:47:31,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62669056] [2020-09-25 09:47:31,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:47:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:47:31,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:31,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:31,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:47:32,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking...