/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=0.5 --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_spec1_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:13:36,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:13:36,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:13:36,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:13:36,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:13:36,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:13:36,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:13:36,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:13:36,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:13:36,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:13:36,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:13:36,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:13:36,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:13:36,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:13:36,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:13:36,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:13:36,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:13:36,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:13:36,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:13:36,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:13:36,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:13:36,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:13:36,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:13:36,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:13:36,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:13:36,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:13:36,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:13:36,261 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:13:36,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:13:36,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:13:36,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:13:36,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:13:36,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:13:36,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:13:36,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:13:36,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:13:36,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:13:36,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:13:36,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:13:36,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:13:36,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:13:36,277 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 14:13:36,323 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:13:36,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:13:36,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:13:36,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:13:36,326 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:13:36,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:13:36,327 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:13:36,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:13:36,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:13:36,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:13:36,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:13:36,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:13:36,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:13:36,329 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:13:36,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:13:36,330 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:13:36,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:13:36,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:13:36,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:13:36,331 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:13:36,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:13:36,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:13:36,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:13:36,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:13:36,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:13:36,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:13:36,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:13:36,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:13:36,332 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:13:36,333 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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;log-additional-information=true; [2020-09-25 14:13:36,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:13:36,859 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:13:36,865 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:13:36,867 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:13:36,867 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:13:36,870 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c [2020-09-25 14:13:36,973 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab80afa48/96bb107313aa4cfc904c7905422c53cf/FLAG951d79a7b [2020-09-25 14:13:37,612 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:13:37,617 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c [2020-09-25 14:13:37,631 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab80afa48/96bb107313aa4cfc904c7905422c53cf/FLAG951d79a7b [2020-09-25 14:13:37,862 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab80afa48/96bb107313aa4cfc904c7905422c53cf [2020-09-25 14:13:37,876 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:13:37,882 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:13:37,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:13:37,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:13:37,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:13:37,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:13:37" (1/1) ... [2020-09-25 14:13:37,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:37, skipping insertion in model container [2020-09-25 14:13:37,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:13:37" (1/1) ... [2020-09-25 14:13:37,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:13:37,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:13:38,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:13:38,421 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:13:38,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:13:38,566 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:13:38,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:38 WrapperNode [2020-09-25 14:13:38,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:13:38,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:13:38,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:13:38,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:13:38,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:38" (1/1) ... [2020-09-25 14:13:38,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:38" (1/1) ... [2020-09-25 14:13:38,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:38" (1/1) ... [2020-09-25 14:13:38,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:38" (1/1) ... [2020-09-25 14:13:38,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:38" (1/1) ... [2020-09-25 14:13:38,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:38" (1/1) ... [2020-09-25 14:13:38,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:38" (1/1) ... [2020-09-25 14:13:38,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:13:38,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:13:38,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:13:38,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:13:38,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:38" (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 14:13:38,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:13:38,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:13:38,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:13:38,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:13:38,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:13:38,759 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:13:38,759 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:13:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:13:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:13:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:13:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:13:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:13:38,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:13:38,762 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:13:38,762 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:13:38,763 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 14:13:38,763 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:13:38,763 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:13:38,764 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 14:13:38,764 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:13:38,765 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 14:13:38,765 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:13:38,765 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:13:38,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:13:38,767 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:13:38,768 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:13:38,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 14:13:38,769 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 14:13:38,769 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:13:38,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:13:38,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:13:38,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:13:38,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:13:38,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:13:38,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:13:38,770 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:13:38,770 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:13:38,770 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:13:38,771 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:13:38,771 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:13:38,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:13:38,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:13:38,772 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:13:38,772 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:13:38,772 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:13:38,772 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:13:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:13:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:13:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:13:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:13:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:13:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:13:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:13:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:13:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:13:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:13:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 14:13:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:13:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:13:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:13:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:13:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:13:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 14:13:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:13:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:13:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 14:13:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 14:13:38,778 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:13:38,778 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 14:13:38,778 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:13:38,779 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:13:38,780 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:13:38,780 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:13:38,781 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:13:38,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:13:38,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:13:38,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:13:38,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:13:38,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:13:38,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:13:38,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:13:38,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:13:38,783 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:13:38,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:13:38,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:13:38,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:13:38,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:13:38,784 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:13:38,784 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:13:38,784 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:13:38,784 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:13:38,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:13:38,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:13:38,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:13:39,957 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:13:39,957 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:13:39,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:13:39 BoogieIcfgContainer [2020-09-25 14:13:39,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:13:39,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:13:39,966 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:13:39,970 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:13:39,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:13:37" (1/3) ... [2020-09-25 14:13:39,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d3bd3f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:13:39, skipping insertion in model container [2020-09-25 14:13:39,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:38" (2/3) ... [2020-09-25 14:13:39,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d3bd3f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:13:39, skipping insertion in model container [2020-09-25 14:13:39,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:13:39" (3/3) ... [2020-09-25 14:13:39,976 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product47.cil.c [2020-09-25 14:13:39,989 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:13:40,002 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:13:40,027 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:13:40,061 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:13:40,061 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:13:40,061 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:13:40,061 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:13:40,062 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:13:40,062 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:13:40,062 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:13:40,062 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:13:40,095 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-25 14:13:40,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 14:13:40,115 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:13:40,116 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:13:40,117 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:13:40,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:13:40,126 INFO L82 PathProgramCache]: Analyzing trace with hash -479235834, now seen corresponding path program 1 times [2020-09-25 14:13:40,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:13:40,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [745181706] [2020-09-25 14:13:40,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:13:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:42,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:43,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:45,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:45,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:45,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 14:13:45,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:13:45,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 14:13:45,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:45,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:45,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:13:45,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 14:13:45,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 14:13:45,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 14:13:46,091 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:13:46,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:13:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:46,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:46,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:46,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:13:46,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:46,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-25 14:13:46,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:46,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:46,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:46,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:46,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 14:13:46,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:46,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:13:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:46,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:46,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:46,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:46,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:46,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:46,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:46,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:46,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:46,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:46,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:46,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:46,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:13:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:46,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:46,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:46,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:46,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:46,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:46,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:46,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:46,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:46,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:46,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:46,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:46,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:13:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:46,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:46,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:46,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:46,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:46,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:13:46,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:46,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:46,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:46,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:46,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:46,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:46,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:13:46,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:46,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:46,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:46,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:46,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:46,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:46,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:46,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:46,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:46,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:46,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:46,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:46,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:13:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:46,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:46,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:46,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:46,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:46,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:46,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:46,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:46,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:46,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:46,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:46,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:46,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:13:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:46,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:46,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:46,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:46,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:46,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:46,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:46,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:46,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:46,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:46,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:46,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:46,581 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 14:13:46,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [745181706] [2020-09-25 14:13:46,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:13:46,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:13:46,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672272653] [2020-09-25 14:13:46,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:13:46,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:13:46,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:13:46,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:13:46,615 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 4 states. [2020-09-25 14:13:47,222 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:13:49,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:13:49,721 INFO L93 Difference]: Finished difference Result 690 states and 842 transitions. [2020-09-25 14:13:49,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:13:49,724 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 14:13:49,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:13:49,762 INFO L225 Difference]: With dead ends: 690 [2020-09-25 14:13:49,763 INFO L226 Difference]: Without dead ends: 485 [2020-09-25 14:13:49,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:13:49,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-09-25 14:13:50,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 414. [2020-09-25 14:13:50,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2020-09-25 14:13:50,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 467 transitions. [2020-09-25 14:13:50,061 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 467 transitions. Word has length 142 [2020-09-25 14:13:50,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:13:50,063 INFO L479 AbstractCegarLoop]: Abstraction has 414 states and 467 transitions. [2020-09-25 14:13:50,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:13:50,064 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 467 transitions. [2020-09-25 14:13:50,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 14:13:50,083 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:13:50,083 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] [2020-09-25 14:13:50,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:13:50,086 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:13:50,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:13:50,086 INFO L82 PathProgramCache]: Analyzing trace with hash 327725705, now seen corresponding path program 1 times [2020-09-25 14:13:50,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:13:50,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747558137] [2020-09-25 14:13:50,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:13:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:50,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:50,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:50,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:52,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:53,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:53,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:53,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:55,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:55,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 14:13:55,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 14:13:55,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 14:13:55,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:55,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:55,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:13:55,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 14:13:55,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-25 14:13:55,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:55,520 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:13:55,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:13:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:55,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:55,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:55,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:13:55,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:55,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-25 14:13:55,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:55,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:55,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:55,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:55,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 14:13:55,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:55,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:13:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:55,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:55,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:55,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:55,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:55,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:55,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:55,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:55,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:55,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:55,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:55,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:55,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:13:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:55,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:55,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:55,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:55,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:55,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:55,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:55,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:55,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:55,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:55,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:55,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:55,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:13:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:55,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:55,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:55,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:55,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:55,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:13:55,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:55,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:55,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:55,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:55,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:55,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:55,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:13:55,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:55,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:55,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:55,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:55,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:55,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:55,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:55,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:55,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:55,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:55,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:55,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:55,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 14:13:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:55,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:55,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:55,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:55,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:13:55,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:13:55,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 14:13:55,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:55,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:55,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:55,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:55,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:13:55,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:55,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:13:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:55,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:55,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:55,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:13:55,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:55,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:55,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:55,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:55,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:55,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:55,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:55,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:13:55,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:13:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:55,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:55,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:55,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:55,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:55,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:13:55,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:55,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:55,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:55,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:55,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:55,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:55,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 14:13:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:55,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:55,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:55,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:55,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:55,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:13:55,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:55,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:55,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:13:55,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:55,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:55,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:55,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 14:13:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:55,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:55,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:55,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:55,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:55,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:55,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:55,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:55,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:55,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:55,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:55,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:56,022 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 14:13:56,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747558137] [2020-09-25 14:13:56,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:13:56,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:13:56,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596157368] [2020-09-25 14:13:56,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:13:56,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:13:56,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:13:56,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:13:56,028 INFO L87 Difference]: Start difference. First operand 414 states and 467 transitions. Second operand 9 states. [2020-09-25 14:13:56,669 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:13:57,685 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:13:57,992 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:13:58,943 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:13:59,294 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:13:59,784 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:00,094 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:14:00,463 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:00,946 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:14:02,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:14:02,636 INFO L93 Difference]: Finished difference Result 1240 states and 1559 transitions. [2020-09-25 14:14:02,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 14:14:02,637 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 165 [2020-09-25 14:14:02,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:14:02,645 INFO L225 Difference]: With dead ends: 1240 [2020-09-25 14:14:02,645 INFO L226 Difference]: Without dead ends: 889 [2020-09-25 14:14:02,648 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 14:14:02,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2020-09-25 14:14:02,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 671. [2020-09-25 14:14:02,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 671 states. [2020-09-25 14:14:02,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 768 transitions. [2020-09-25 14:14:02,764 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 768 transitions. Word has length 165 [2020-09-25 14:14:02,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:14:02,765 INFO L479 AbstractCegarLoop]: Abstraction has 671 states and 768 transitions. [2020-09-25 14:14:02,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:14:02,765 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 768 transitions. [2020-09-25 14:14:02,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 14:14:02,769 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:14:02,769 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] [2020-09-25 14:14:02,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:14:02,770 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:14:02,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:14:02,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1178898179, now seen corresponding path program 1 times [2020-09-25 14:14:02,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:14:02,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389567912] [2020-09-25 14:14:02,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:14:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:02,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:03,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:03,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:06,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 14:14:06,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:14:06,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3180 [2020-09-25 14:14:06,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:06,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:06,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:14:06,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 14:14:06,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 14:14:06,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:06,434 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:14:06,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:14:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:06,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:06,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:14:06,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:06,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-25 14:14:06,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:06,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:06,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:06,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:06,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:14:06,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:14:06,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:14:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:06,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:06,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:06,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:06,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:06,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:06,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:06,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:06,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:06,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:06,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:06,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:14:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:06,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:06,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:06,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:06,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:06,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:06,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:06,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:06,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:06,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:06,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:06,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:14:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:06,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:06,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:06,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:06,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:14:06,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:06,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:06,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:06,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:06,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:06,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:14:06,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:14:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:06,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:06,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:06,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:06,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:06,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:06,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:06,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:06,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:06,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:06,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:14:06,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:14:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:06,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:06,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:14:06,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:06,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:14:06,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:06,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:06,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:06,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:06,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:14:06,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:14:06,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 14:14:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:06,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:06,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:14:06,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:14:06,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:14:06,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:06,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:06,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:14:06,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:14:06,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:14:06,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:14:06,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 14:14:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:06,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:06,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:06,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:06,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:06,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:06,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:06,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:06,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:06,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:06,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:06,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 14:14:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:06,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:06,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:06,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:06,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:14:06,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:06,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:06,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:14:06,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:06,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:06,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:06,947 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 14:14:06,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389567912] [2020-09-25 14:14:06,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:14:06,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 14:14:06,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285656955] [2020-09-25 14:14:06,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 14:14:06,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:14:06,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 14:14:06,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:14:06,951 INFO L87 Difference]: Start difference. First operand 671 states and 768 transitions. Second operand 11 states. [2020-09-25 14:14:07,461 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:14:08,969 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:09,319 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:14:09,679 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:10,049 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:14:10,417 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:14:11,241 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:14:11,568 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:11,970 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:14:13,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:14:13,721 INFO L93 Difference]: Finished difference Result 1966 states and 2520 transitions. [2020-09-25 14:14:13,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 14:14:13,722 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 166 [2020-09-25 14:14:13,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:14:13,731 INFO L225 Difference]: With dead ends: 1966 [2020-09-25 14:14:13,732 INFO L226 Difference]: Without dead ends: 1405 [2020-09-25 14:14:13,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=185, Invalid=465, Unknown=0, NotChecked=0, Total=650 [2020-09-25 14:14:13,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2020-09-25 14:14:13,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1061. [2020-09-25 14:14:13,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1061 states. [2020-09-25 14:14:13,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1254 transitions. [2020-09-25 14:14:13,891 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1254 transitions. Word has length 166 [2020-09-25 14:14:13,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:14:13,891 INFO L479 AbstractCegarLoop]: Abstraction has 1061 states and 1254 transitions. [2020-09-25 14:14:13,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 14:14:13,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1254 transitions. [2020-09-25 14:14:13,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 14:14:13,896 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:14:13,897 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:14:13,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:14:13,897 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:14:13,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:14:13,898 INFO L82 PathProgramCache]: Analyzing trace with hash -446373878, now seen corresponding path program 1 times [2020-09-25 14:14:13,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:14:13,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052215680] [2020-09-25 14:14:13,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:14:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:14,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:14,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:18,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:18,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:18,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-09-25 14:14:18,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:14:18,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 14:14:18,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:18,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:18,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:14:18,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-25 14:14:18,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 14:14:18,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:19,226 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:14:19,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:14:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:19,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:19,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:19,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:14:19,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:19,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 14:14:19,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:19,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:19,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:19,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:19,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:19,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:19,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:14:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:19,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:19,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:19,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:19,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:19,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:19,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:19,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:19,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:19,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:19,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:19,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:19,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:14:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:19,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:19,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:19,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:19,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:19,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:19,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:19,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:19,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:19,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:19,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:19,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:19,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:14:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:19,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:19,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:19,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:19,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:19,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:19,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:19,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:19,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:19,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:19,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:19,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:19,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:14:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:19,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:19,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:19,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:19,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:19,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:19,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:19,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:19,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:19,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:19,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:19,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:19,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:14:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:19,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:19,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:19,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:14:19,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:19,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:19,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:19,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:19,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:19,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:19,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 14:14:19,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:19,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 14:14:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:19,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:19,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:20,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:20,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 14:14:20,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:14:20,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 541 [2020-09-25 14:14:20,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:20,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:20,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:14:20,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-25 14:14:20,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 14:14:20,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:20,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:14:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:20,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:20,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:20,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:20,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 14:14:20,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:14:20,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 854 [2020-09-25 14:14:20,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:20,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:20,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:14:20,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:20,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 14:14:20,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:20,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:14:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:20,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:20,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:20,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:14:20,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:20,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:14:20,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:20,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:20,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:20,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:20,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:20,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:20,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:14:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:20,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:20,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:20,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:14:20,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:20,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:14:20,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:20,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:20,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:20,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:20,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:20,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:14:20,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 14:14:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:20,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:21,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:21,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 14:14:21,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:21,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 14:14:21,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:21,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:21,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:14:21,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:21,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 14:14:21,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:21,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:14:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:21,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:21,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:21,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:14:21,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:21,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:14:21,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:21,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:21,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:14:21,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:21,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 14:14:21,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:21,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:14:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:21,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:21,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:21,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:21,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:21,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:14:21,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:21,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:21,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:14:21,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:21,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:14:21,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:14:21,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 14:14:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:21,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:21,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:21,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:14:21,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:21,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:14:21,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:21,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:21,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:21,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:21,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:14:21,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:21,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 14:14:21,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:21,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:21,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:21,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:21,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:21,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:21,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:21,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:21,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:21,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:14:21,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:21,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:21,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-25 14:14:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:21,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:21,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:21,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:21,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:21,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:21,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:21,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:21,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:21,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:14:21,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:21,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:21,341 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 14:14:21,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052215680] [2020-09-25 14:14:21,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:14:21,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 14:14:21,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931792742] [2020-09-25 14:14:21,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 14:14:21,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:14:21,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 14:14:21,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-09-25 14:14:21,344 INFO L87 Difference]: Start difference. First operand 1061 states and 1254 transitions. Second operand 14 states. [2020-09-25 14:14:21,886 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:14:22,931 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:14:23,658 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:14:23,992 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:14:24,475 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:24,815 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:14:26,084 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189