/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 SequenceOfStatements --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=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 01:33:24,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 01:33:24,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 01:33:24,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 01:33:24,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 01:33:24,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 01:33:24,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 01:33:24,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 01:33:24,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 01:33:24,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 01:33:24,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 01:33:24,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 01:33:24,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 01:33:24,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 01:33:24,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 01:33:24,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 01:33:24,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 01:33:24,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 01:33:24,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 01:33:24,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 01:33:24,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 01:33:24,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 01:33:24,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 01:33:24,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 01:33:24,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 01:33:24,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 01:33:24,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 01:33:24,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 01:33:24,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 01:33:24,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 01:33:24,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 01:33:24,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 01:33:24,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 01:33:24,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 01:33:24,168 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 01:33:24,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 01:33:24,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 01:33:24,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 01:33:24,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 01:33:24,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 01:33:24,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 01:33:24,171 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 [2020-10-15 01:33:24,191 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 01:33:24,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 01:33:24,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 01:33:24,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 01:33:24,193 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 01:33:24,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 01:33:24,194 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 01:33:24,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 01:33:24,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 01:33:24,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 01:33:24,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 01:33:24,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 01:33:24,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 01:33:24,195 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 01:33:24,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 01:33:24,195 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 01:33:24,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 01:33:24,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 01:33:24,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 01:33:24,196 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 01:33:24,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 01:33:24,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 01:33:24,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 01:33:24,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 01:33:24,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 01:33:24,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 01:33:24,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 01:33:24,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 01:33:24,198 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 01:33:24,198 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 -> SequenceOfStatements 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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 01:33:24,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 01:33:24,515 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 01:33:24,523 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 01:33:24,525 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 01:33:24,525 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 01:33:24,526 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2020-10-15 01:33:24,609 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f27292de0/e8b6d3a62dfd4fc9a3795079e8da7833/FLAG0e075fb3d [2020-10-15 01:33:25,095 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 01:33:25,096 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2020-10-15 01:33:25,111 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f27292de0/e8b6d3a62dfd4fc9a3795079e8da7833/FLAG0e075fb3d [2020-10-15 01:33:25,375 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f27292de0/e8b6d3a62dfd4fc9a3795079e8da7833 [2020-10-15 01:33:25,384 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 01:33:25,385 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 01:33:25,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 01:33:25,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 01:33:25,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 01:33:25,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:33:25" (1/1) ... [2020-10-15 01:33:25,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71b79fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:25, skipping insertion in model container [2020-10-15 01:33:25,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:33:25" (1/1) ... [2020-10-15 01:33:25,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 01:33:25,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 01:33:25,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 01:33:25,785 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 01:33:25,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 01:33:26,029 INFO L208 MainTranslator]: Completed translation [2020-10-15 01:33:26,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:26 WrapperNode [2020-10-15 01:33:26,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 01:33:26,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 01:33:26,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 01:33:26,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 01:33:26,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:26" (1/1) ... [2020-10-15 01:33:26,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:26" (1/1) ... [2020-10-15 01:33:26,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:26" (1/1) ... [2020-10-15 01:33:26,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:26" (1/1) ... [2020-10-15 01:33:26,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:26" (1/1) ... [2020-10-15 01:33:26,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:26" (1/1) ... [2020-10-15 01:33:26,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:26" (1/1) ... [2020-10-15 01:33:26,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 01:33:26,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 01:33:26,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 01:33:26,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 01:33:26,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:26" (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 [2020-10-15 01:33:26,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 01:33:26,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 01:33:26,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-15 01:33:26,251 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-15 01:33:26,251 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-15 01:33:26,252 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-15 01:33:26,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-15 01:33:26,253 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-15 01:33:26,253 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-15 01:33:26,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-15 01:33:26,253 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-15 01:33:26,253 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-15 01:33:26,254 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-15 01:33:26,254 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-15 01:33:26,254 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-15 01:33:26,255 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-15 01:33:26,255 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-15 01:33:26,255 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-15 01:33:26,255 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-15 01:33:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-15 01:33:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-15 01:33:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-15 01:33:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-15 01:33:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-15 01:33:26,257 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-15 01:33:26,257 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-15 01:33:26,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-15 01:33:26,258 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-15 01:33:26,258 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 01:33:26,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-15 01:33:26,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-15 01:33:26,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-15 01:33:26,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-15 01:33:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-15 01:33:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-15 01:33:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-15 01:33:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-15 01:33:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-15 01:33:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-15 01:33:26,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 01:33:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 01:33:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-15 01:33:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-15 01:33:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-15 01:33:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-15 01:33:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-15 01:33:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-15 01:33:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-15 01:33:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-15 01:33:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 01:33:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-15 01:33:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-15 01:33:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-15 01:33:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-15 01:33:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-15 01:33:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-15 01:33:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-15 01:33:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-15 01:33:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-15 01:33:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-15 01:33:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-15 01:33:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-15 01:33:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-15 01:33:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-15 01:33:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-15 01:33:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-15 01:33:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-15 01:33:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-15 01:33:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-15 01:33:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-15 01:33:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-15 01:33:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 01:33:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-15 01:33:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-15 01:33:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-15 01:33:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-15 01:33:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 01:33:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-15 01:33:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 01:33:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-15 01:33:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-15 01:33:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 01:33:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-15 01:33:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-15 01:33:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 01:33:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-15 01:33:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-15 01:33:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-15 01:33:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-15 01:33:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 01:33:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 01:33:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 01:33:27,314 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 01:33:27,314 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-15 01:33:27,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:33:27 BoogieIcfgContainer [2020-10-15 01:33:27,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 01:33:27,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 01:33:27,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 01:33:27,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 01:33:27,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:33:25" (1/3) ... [2020-10-15 01:33:27,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7572f78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:33:27, skipping insertion in model container [2020-10-15 01:33:27,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:26" (2/3) ... [2020-10-15 01:33:27,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7572f78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:33:27, skipping insertion in model container [2020-10-15 01:33:27,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:33:27" (3/3) ... [2020-10-15 01:33:27,329 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2020-10-15 01:33:27,340 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 01:33:27,349 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 01:33:27,363 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 01:33:27,391 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 01:33:27,391 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 01:33:27,391 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 01:33:27,391 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 01:33:27,392 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 01:33:27,392 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 01:33:27,392 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 01:33:27,392 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 01:33:27,416 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2020-10-15 01:33:27,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-15 01:33:27,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:33:27,427 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] [2020-10-15 01:33:27,427 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:33:27,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:33:27,433 INFO L82 PathProgramCache]: Analyzing trace with hash 2058113087, now seen corresponding path program 1 times [2020-10-15 01:33:27,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:33:27,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520370766] [2020-10-15 01:33:27,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:33:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:27,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:27,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:28,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:29,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:29,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:32,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:32,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 01:33:32,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 01:33:32,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 01:33:32,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:32,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:32,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 01:33:32,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:33:32,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-15 01:33:32,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 01:33:33,160 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:33:33,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:33:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:33,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:33,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:33,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:33,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:33,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-15 01:33:33,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:33,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 01:33:33,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:33,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:33:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:33,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:33,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:33,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:33:33,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:33,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:33:33,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:33,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:33,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:33,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:33,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:33:33,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:33,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:33:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:33,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:33,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:33,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:33:33,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:33,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:33:33,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:33,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:33,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:33,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:33,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:33:33,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:33,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:33:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:33,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:33,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:33,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:33,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:33,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:33:33,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:33,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:33,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:33,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:33,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:33:33,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:33,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:33:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:33,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:33,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:33,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:33:33,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:33,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:33:33,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:33,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:33,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:33,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:33,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:33:33,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:33,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 01:33:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:33,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:33,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:33,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:33,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:33,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 01:33:33,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:33,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:33,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:33:33,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:33,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:33:33,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:33,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 01:33:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:33,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:33,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:33,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:33,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:33,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:33,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:33,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:33,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:33,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:33:33,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:33,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:33,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:33:33,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520370766] [2020-10-15 01:33:33,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:33:33,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 01:33:33,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677494493] [2020-10-15 01:33:33,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 01:33:33,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:33:33,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 01:33:33,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-15 01:33:33,427 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 7 states. [2020-10-15 01:33:33,947 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:33:34,841 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:33:35,242 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:33:35,545 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:33:35,995 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:33:36,393 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 01:33:37,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:33:37,639 INFO L93 Difference]: Finished difference Result 423 states and 559 transitions. [2020-10-15 01:33:37,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 01:33:37,641 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2020-10-15 01:33:37,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:33:37,657 INFO L225 Difference]: With dead ends: 423 [2020-10-15 01:33:37,658 INFO L226 Difference]: Without dead ends: 259 [2020-10-15 01:33:37,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-15 01:33:37,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-10-15 01:33:37,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 210. [2020-10-15 01:33:37,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-10-15 01:33:37,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 248 transitions. [2020-10-15 01:33:37,799 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 248 transitions. Word has length 46 [2020-10-15 01:33:37,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:33:37,800 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 248 transitions. [2020-10-15 01:33:37,800 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 01:33:37,800 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 248 transitions. [2020-10-15 01:33:37,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-15 01:33:37,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:33:37,809 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] [2020-10-15 01:33:37,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 01:33:37,810 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:33:37,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:33:37,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1501694858, now seen corresponding path program 1 times [2020-10-15 01:33:37,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:33:37,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1022047842] [2020-10-15 01:33:37,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:33:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:37,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:38,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:38,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:39,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:39,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 01:33:39,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 01:33:39,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2005 [2020-10-15 01:33:39,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:39,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:39,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 01:33:39,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:33:39,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-15 01:33:39,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:40,160 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:33:40,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:33:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:40,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:40,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:40,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:40,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:40,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-15 01:33:40,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:40,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:40,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:40,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:40,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 01:33:40,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:40,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:33:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:40,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:40,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:40,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:33:40,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:40,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:40,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:40,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:40,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:40,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:40,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:33:40,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:40,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:33:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:40,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:40,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:40,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:33:40,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:40,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:40,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:40,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:40,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:40,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:40,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:33:40,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:40,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:33:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:40,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:40,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:40,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:40,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:40,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:33:40,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:40,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:40,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:40,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:40,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:33:40,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:40,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:33:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:40,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:40,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:40,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:33:40,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:40,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:40,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:40,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:40,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:40,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:40,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:33:40,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:40,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-15 01:33:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:40,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:40,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:40,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:40,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:40,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:33:40,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:40,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:40,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:40,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:40,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:33:40,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:40,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-15 01:33:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:40,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:40,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:40,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:40,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:40,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:40,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:40,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:40,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:40,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:40,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:33:40,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:40,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 01:33:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:40,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:40,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:40,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:40,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:40,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:33:40,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:40,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:40,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:33:40,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:40,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:33:40,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:40,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:33:40,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1022047842] [2020-10-15 01:33:40,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:33:40,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 01:33:40,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345828168] [2020-10-15 01:33:40,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 01:33:40,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:33:40,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 01:33:40,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 01:33:40,335 INFO L87 Difference]: Start difference. First operand 210 states and 248 transitions. Second operand 8 states. [2020-10-15 01:33:40,751 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:33:41,589 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:33:41,861 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:33:42,095 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:33:43,126 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:33:43,396 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 01:33:43,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:33:43,936 INFO L93 Difference]: Finished difference Result 586 states and 774 transitions. [2020-10-15 01:33:43,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 01:33:43,937 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-10-15 01:33:43,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:33:43,947 INFO L225 Difference]: With dead ends: 586 [2020-10-15 01:33:43,947 INFO L226 Difference]: Without dead ends: 400 [2020-10-15 01:33:43,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-15 01:33:43,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-10-15 01:33:44,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 335. [2020-10-15 01:33:44,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-10-15 01:33:44,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 419 transitions. [2020-10-15 01:33:44,045 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 419 transitions. Word has length 55 [2020-10-15 01:33:44,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:33:44,045 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 419 transitions. [2020-10-15 01:33:44,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 01:33:44,046 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 419 transitions. [2020-10-15 01:33:44,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-15 01:33:44,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:33:44,052 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:33:44,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 01:33:44,052 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:33:44,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:33:44,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1007756192, now seen corresponding path program 1 times [2020-10-15 01:33:44,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:33:44,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698045793] [2020-10-15 01:33:44,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:33:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:44,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:44,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:44,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:44,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:44,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:44,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:44,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:44,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:47,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-15 01:33:49,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 01:33:49,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-15 01:33:49,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:49,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-15 01:33:49,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 01:33:49,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:49,372 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:33:49,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:33:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:49,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:49,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 01:33:49,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:49,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:49,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:49,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:49,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:33:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:33:49,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:49,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:33:49,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:49,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:49,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:49,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:49,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:33:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:33:49,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:49,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:33:49,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:49,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:49,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:49,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:49,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:33:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:49,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:49,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:33:49,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:49,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:49,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:49,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:33:49,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:33:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:33:49,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:49,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:33:49,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:49,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:49,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:49,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:49,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-15 01:33:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:49,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:49,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:49,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:49,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:49,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:49,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:49,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 01:33:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 01:33:49,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:49,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 01:33:49,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:49,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:49,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 01:33:49,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:49,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:33:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 01:33:49,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:49,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 01:33:49,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:49,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:49,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 01:33:49,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:49,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:33:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:49,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:49,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:49,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:49,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:49,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:49,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:49,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 01:33:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 01:33:49,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 01:33:49,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 01:33:49,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:49,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:49,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 01:33:49,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:49,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:33:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 01:33:49,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:49,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:49,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:49,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:49,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:49,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:49,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:33:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:49,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:49,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:49,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:49,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:49,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:49,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:49,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 01:33:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-15 01:33:49,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 01:33:49,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-15 01:33:49,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:33:49,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 01:33:49,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:33:49,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 01:33:49,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:33:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 01:33:49,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:49,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 01:33:49,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:33:49,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 01:33:49,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:33:49,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:49,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:33:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:33:49,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:49,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 01:33:49,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 01:33:49,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:49,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:33:49,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 01:33:49,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 01:33:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-15 01:33:49,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:49,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 01:33:49,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:49,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-15 01:33:49,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:49,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:49,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:33:49,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 01:33:49,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:49,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:33:49,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:49,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:49,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:49,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:49,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:33:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:49,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:49,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:49,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:49,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:49,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:49,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:49,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:33:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:49,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:49,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:33:49,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:49,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:49,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:49,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:49,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-15 01:33:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:49,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:49,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:49,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:49,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:33:49,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:49,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:33:49,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-15 01:33:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:49,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:49,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:49,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:49,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:49,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:49,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:49,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:49,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:49,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:33:49,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:49,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:49,922 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-15 01:33:49,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1698045793] [2020-10-15 01:33:49,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 01:33:49,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-15 01:33:49,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995722184] [2020-10-15 01:33:49,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 01:33:49,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:33:49,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 01:33:49,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 01:33:49,929 INFO L87 Difference]: Start difference. First operand 335 states and 419 transitions. Second operand 10 states. [2020-10-15 01:33:50,836 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:33:51,345 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:33:51,617 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:33:51,877 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-15 01:33:54,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:33:54,260 INFO L93 Difference]: Finished difference Result 1162 states and 1741 transitions. [2020-10-15 01:33:54,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 01:33:54,260 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 131 [2020-10-15 01:33:54,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:33:54,267 INFO L225 Difference]: With dead ends: 1162 [2020-10-15 01:33:54,267 INFO L226 Difference]: Without dead ends: 591 [2020-10-15 01:33:54,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2020-10-15 01:33:54,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2020-10-15 01:33:54,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 408. [2020-10-15 01:33:54,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2020-10-15 01:33:54,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 503 transitions. [2020-10-15 01:33:54,357 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 503 transitions. Word has length 131 [2020-10-15 01:33:54,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:33:54,358 INFO L479 AbstractCegarLoop]: Abstraction has 408 states and 503 transitions. [2020-10-15 01:33:54,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 01:33:54,358 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 503 transitions. [2020-10-15 01:33:54,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 01:33:54,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:33:54,361 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-15 01:33:54,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 01:33:54,361 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:33:54,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:33:54,362 INFO L82 PathProgramCache]: Analyzing trace with hash -807124254, now seen corresponding path program 1 times [2020-10-15 01:33:54,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:33:54,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588864263] [2020-10-15 01:33:54,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:33:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:54,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:54,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:56,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:59,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:59,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-15 01:33:59,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 01:33:59,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4830 [2020-10-15 01:33:59,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:59,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:59,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 01:33:59,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:33:59,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 01:33:59,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:59,563 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:33:59,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:33:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:59,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:59,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:59,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:59,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:59,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-15 01:33:59,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:59,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:59,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:59,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:59,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 01:33:59,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:59,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:33:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:59,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:59,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:59,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:33:59,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:59,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:59,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:59,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:59,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:59,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:59,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:33:59,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:59,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:33:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:59,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:59,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:59,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:33:59,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:59,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:59,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:59,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:59,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:59,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:59,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:33:59,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:59,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:33:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:59,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:59,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:59,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:59,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:59,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:59,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:59,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:59,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:59,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:59,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:33:59,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:59,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:33:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:59,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:59,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:59,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:33:59,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:59,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:59,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:59,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:59,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:59,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:59,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:33:59,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:59,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-15 01:33:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:59,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:59,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:59,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:59,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:59,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:33:59,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:59,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:59,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:33:59,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:59,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-15 01:33:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:59,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:59,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:59,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-15 01:33:59,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:59,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 01:33:59,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:59,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:59,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:59,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 01:33:59,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-15 01:33:59,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:59,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:33:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:59,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:59,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:59,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 01:33:59,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:59,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:33:59,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:59,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:59,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 01:33:59,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:33:59,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:33:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:59,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:59,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:59,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:33:59,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:59,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:33:59,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:59,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:59,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:59,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:59,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 01:33:59,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:59,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 01:33:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:59,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:59,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:59,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-15 01:33:59,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:59,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 01:33:59,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:59,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:59,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:59,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:59,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 01:33:59,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:59,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:33:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:59,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:59,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:59,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 01:33:59,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:59,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:59,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:59,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:59,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:59,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:59,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:33:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:59,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:59,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:59,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:59,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:59,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:59,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:59,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:59,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:59,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:59,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:59,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 01:33:59,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:33:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:59,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:59,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:59,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:59,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:59,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:59,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:59,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:59,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:59,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:59,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:59,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:59,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 01:33:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:59,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:59,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:59,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:59,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:59,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:59,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:59,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:59,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:59,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:33:59,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:59,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:59,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-15 01:33:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:59,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:59,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:59,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:59,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:59,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:59,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:59,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:59,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:59,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:33:59,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:59,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:59,875 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 01:33:59,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1588864263] [2020-10-15 01:33:59,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:33:59,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 01:33:59,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639808732] [2020-10-15 01:33:59,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 01:33:59,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:33:59,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 01:33:59,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-15 01:33:59,878 INFO L87 Difference]: Start difference. First operand 408 states and 503 transitions. Second operand 8 states. [2020-10-15 01:34:00,252 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:34:00,726 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:34:02,259 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:34:04,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:34:04,721 INFO L93 Difference]: Finished difference Result 1813 states and 2676 transitions. [2020-10-15 01:34:04,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 01:34:04,721 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 93 [2020-10-15 01:34:04,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:34:04,734 INFO L225 Difference]: With dead ends: 1813 [2020-10-15 01:34:04,734 INFO L226 Difference]: Without dead ends: 1429 [2020-10-15 01:34:04,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-10-15 01:34:04,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1429 states. [2020-10-15 01:34:04,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1429 to 1164. [2020-10-15 01:34:04,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1164 states. [2020-10-15 01:34:04,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 1164 states and 1527 transitions. [2020-10-15 01:34:04,942 INFO L78 Accepts]: Start accepts. Automaton has 1164 states and 1527 transitions. Word has length 93 [2020-10-15 01:34:04,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:34:04,943 INFO L479 AbstractCegarLoop]: Abstraction has 1164 states and 1527 transitions. [2020-10-15 01:34:04,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 01:34:04,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1164 states and 1527 transitions. [2020-10-15 01:34:04,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 01:34:04,946 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:34:04,946 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-15 01:34:04,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 01:34:04,947 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:34:04,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:34:04,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1880670433, now seen corresponding path program 1 times [2020-10-15 01:34:04,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:34:04,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [737708308] [2020-10-15 01:34:04,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:34:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:04,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:05,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:06,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:07,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:07,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-15 01:34:07,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 01:34:07,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2842 [2020-10-15 01:34:07,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:07,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:07,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 01:34:07,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-15 01:34:07,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 01:34:07,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:08,107 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:34:08,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:34:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:08,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:08,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:08,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:08,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 01:34:08,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:08,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:08,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:08,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:08,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:08,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:08,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:34:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:08,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:08,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:08,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:08,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:08,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:08,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:08,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:08,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:08,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:08,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:08,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:34:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:08,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:08,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:08,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:08,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:08,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:08,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:08,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:08,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:08,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:08,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:08,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:34:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:08,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:08,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:08,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:08,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:08,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:08,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:08,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:08,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:08,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:08,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:08,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:34:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:08,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:08,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:08,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:08,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:08,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:08,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:08,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:08,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:08,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:08,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:08,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-15 01:34:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:08,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:08,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:08,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:08,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:34:08,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:08,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:08,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:08,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:08,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 01:34:08,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:08,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-15 01:34:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:08,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:08,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-15 01:34:08,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 01:34:08,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-15 01:34:08,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:08,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 01:34:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-15 01:34:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 01:34:08,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:08,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:08,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:08,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 01:34:08,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:08,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 01:34:08,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:08,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:08,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:08,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:08,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:08,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 01:34:08,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:34:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:08,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:08,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:34:08,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:08,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:08,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:08,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:08,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:08,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:08,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:08,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:08,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 01:34:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:08,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:08,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-15 01:34:08,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:08,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 01:34:08,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:08,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:08,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 01:34:08,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:08,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 01:34:08,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:08,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:34:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:08,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:08,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 01:34:08,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:08,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 01:34:08,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:08,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 01:34:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:08,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 01:34:08,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:08,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:34:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:08,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:08,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:08,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:08,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 01:34:08,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:08,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:08,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 01:34:08,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:08,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:08,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 01:34:08,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:34:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:08,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:08,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:08,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:08,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:34:08,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:08,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:08,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:08,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:08,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:08,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:08,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 01:34:08,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:08,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:08,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:08,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:08,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:08,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:08,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:08,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:08,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:08,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:08,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:08,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-15 01:34:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:08,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:08,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:08,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:08,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:08,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:08,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:08,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:08,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:08,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:08,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:08,706 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-15 01:34:08,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [737708308] [2020-10-15 01:34:08,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 01:34:08,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-15 01:34:08,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916589252] [2020-10-15 01:34:08,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 01:34:08,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:34:08,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 01:34:08,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-10-15 01:34:08,710 INFO L87 Difference]: Start difference. First operand 1164 states and 1527 transitions. Second operand 12 states. [2020-10-15 01:34:09,405 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:34:10,094 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:34:10,814 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:34:11,133 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:34:11,416 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:34:11,653 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:34:11,937 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:34:12,185 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:34:12,441 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:34:12,711 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:34:12,995 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:34:13,273 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:34:15,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:34:15,069 INFO L93 Difference]: Finished difference Result 2423 states and 3276 transitions. [2020-10-15 01:34:15,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-15 01:34:15,069 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 93 [2020-10-15 01:34:15,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:34:15,078 INFO L225 Difference]: With dead ends: 2423 [2020-10-15 01:34:15,079 INFO L226 Difference]: Without dead ends: 1242 [2020-10-15 01:34:15,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=177, Invalid=693, Unknown=0, NotChecked=0, Total=870 [2020-10-15 01:34:15,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2020-10-15 01:34:15,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1036. [2020-10-15 01:34:15,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1036 states. [2020-10-15 01:34:15,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1289 transitions. [2020-10-15 01:34:15,266 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1289 transitions. Word has length 93 [2020-10-15 01:34:15,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:34:15,268 INFO L479 AbstractCegarLoop]: Abstraction has 1036 states and 1289 transitions. [2020-10-15 01:34:15,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 01:34:15,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1289 transitions. [2020-10-15 01:34:15,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-15 01:34:15,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:34:15,275 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:34:15,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 01:34:15,275 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:34:15,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:34:15,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1045585747, now seen corresponding path program 1 times [2020-10-15 01:34:15,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:34:15,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1596300823] [2020-10-15 01:34:15,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:34:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:15,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:15,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:15,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:17,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:17,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-15 01:34:17,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 01:34:17,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2151 [2020-10-15 01:34:17,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:17,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 01:34:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:17,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-15 01:34:17,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:17,727 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:34:17,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:34:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:17,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:17,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:17,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:17,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:17,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-15 01:34:17,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:17,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:17,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:17,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:17,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 01:34:17,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:17,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:34:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:17,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:17,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:17,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:17,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:17,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:17,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:17,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:17,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:17,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:34:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:17,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:17,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:17,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:17,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:17,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:17,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:17,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:17,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:17,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:17,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:17,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:17,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:34:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:17,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:17,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:17,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:17,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:17,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:17,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:17,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:17,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:17,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:17,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:17,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:17,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:34:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:17,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:17,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:17,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:17,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:17,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:17,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:17,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:17,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:17,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:17,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:17,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:17,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 01:34:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:17,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:17,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:17,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:17,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-15 01:34:17,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 01:34:17,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-15 01:34:17,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:17,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:17,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:17,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:17,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-15 01:34:17,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:17,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:17,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:17,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:17,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:17,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-15 01:34:17,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 01:34:17,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 01:34:17,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:17,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:17,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 01:34:17,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 01:34:17,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 01:34:17,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:17,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:17,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:18,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:18,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 01:34:18,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:18,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 01:34:18,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:18,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:18,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:34:18,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:18,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 01:34:18,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:18,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:34:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:18,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:18,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:18,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:34:18,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:18,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:18,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:18,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:18,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:18,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:18,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:18,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:18,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 01:34:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:18,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:18,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:18,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-15 01:34:18,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:18,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:34:18,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:18,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:18,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:18,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-15 01:34:18,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:18,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:18,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:34:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:18,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:18,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:18,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 01:34:18,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:18,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:34:18,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:18,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:18,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:18,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:18,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:18,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:18,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:34:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:18,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:18,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:18,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:18,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:18,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:34:18,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:18,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:18,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:18,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:18,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:18,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:18,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:34:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:18,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:18,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:18,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:18,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:18,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:18,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:18,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:18,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:18,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:18,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:18,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:18,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 01:34:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:18,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:18,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:18,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 01:34:18,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:18,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:34:18,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:18,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:18,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:18,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:18,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:18,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:18,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:34:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:18,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:18,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:18,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:18,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:18,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:18,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:18,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:18,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:18,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:18,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:18,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:18,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-15 01:34:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:18,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:18,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:18,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:18,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:18,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:34:18,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:18,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:18,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:18,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:18,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:18,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:18,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-15 01:34:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:18,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:18,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:18,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:18,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:18,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:34:18,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:18,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:18,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:18,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:18,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:18,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 01:34:18,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-15 01:34:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:18,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:18,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:18,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:18,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:18,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:18,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:18,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:18,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:18,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:18,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:18,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:18,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-15 01:34:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:18,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:18,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:18,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:18,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:18,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:18,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:18,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:18,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:18,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:18,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:18,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:18,203 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 01:34:18,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1596300823] [2020-10-15 01:34:18,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 01:34:18,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-15 01:34:18,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514992601] [2020-10-15 01:34:18,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 01:34:18,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:34:18,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 01:34:18,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-15 01:34:18,215 INFO L87 Difference]: Start difference. First operand 1036 states and 1289 transitions. Second operand 13 states. [2020-10-15 01:34:18,843 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:34:19,573 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-15 01:34:19,822 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-15 01:34:20,087 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-15 01:34:20,355 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-15 01:34:21,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:34:21,619 INFO L93 Difference]: Finished difference Result 2043 states and 2719 transitions. [2020-10-15 01:34:21,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 01:34:21,620 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 120 [2020-10-15 01:34:21,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:34:21,628 INFO L225 Difference]: With dead ends: 2043 [2020-10-15 01:34:21,628 INFO L226 Difference]: Without dead ends: 1031 [2020-10-15 01:34:21,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2020-10-15 01:34:21,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2020-10-15 01:34:21,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 850. [2020-10-15 01:34:21,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2020-10-15 01:34:21,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1035 transitions. [2020-10-15 01:34:21,751 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1035 transitions. Word has length 120 [2020-10-15 01:34:21,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:34:21,751 INFO L479 AbstractCegarLoop]: Abstraction has 850 states and 1035 transitions. [2020-10-15 01:34:21,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 01:34:21,752 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1035 transitions. [2020-10-15 01:34:21,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-15 01:34:21,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:34:21,755 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:34:21,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 01:34:21,755 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:34:21,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:34:21,755 INFO L82 PathProgramCache]: Analyzing trace with hash 2025649590, now seen corresponding path program 1 times [2020-10-15 01:34:21,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:34:21,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584169121] [2020-10-15 01:34:21,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:34:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:21,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:21,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:21,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-15 01:34:21,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:21,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-15 01:34:21,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:21,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:21,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:34:21,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-15 01:34:21,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:21,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:22,186 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:34:22,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:34:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:22,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 01:34:22,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:22,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:22,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:34:22,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:22,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:22,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:22,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:22,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:22,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:22,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:34:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:22,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:22,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:22,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:22,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:22,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:22,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:34:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:22,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:22,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:22,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:22,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:22,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:22,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:34:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:22,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:22,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:22,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:22,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:22,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:22,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 01:34:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-15 01:34:22,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 01:34:22,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:34:22,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-15 01:34:22,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:22,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:22,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-15 01:34:22,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 01:34:22,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:34:22,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 01:34:22,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:22,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:22,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 01:34:22,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 01:34:22,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:34:22,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 01:34:22,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:22,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:22,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:34:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:34:22,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:34:22,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 01:34:22,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:22,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:22,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:22,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 01:34:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-15 01:34:22,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:34:22,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:22,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-15 01:34:22,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:22,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:22,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:34:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 01:34:22,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:22,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:22,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:22,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:22,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:22,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:34:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:22,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:22,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:22,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:22,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:22,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:22,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:34:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:22,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:22,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:22,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:22,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:22,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:22,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 01:34:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 01:34:22,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:22,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:22,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 01:34:22,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:22,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:22,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:34:22,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:22,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:22,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:22,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:22,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:22,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:22,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-15 01:34:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:22,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:22,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:22,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:22,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:22,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:22,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-15 01:34:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:22,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:22,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:22,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:22,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:22,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:22,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-15 01:34:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 01:34:22,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:22,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:22,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 01:34:22,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:22,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:22,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:22,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:22,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:22,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:22,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:22,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:22,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-15 01:34:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:22,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:22,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:22,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:22,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:22,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:22,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-15 01:34:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:22,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:22,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:22,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:22,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:22,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:22,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:22,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:22,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:22,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:22,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:22,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:22,488 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 01:34:22,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1584169121] [2020-10-15 01:34:22,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 01:34:22,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-15 01:34:22,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754600851] [2020-10-15 01:34:22,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 01:34:22,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:34:22,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 01:34:22,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 01:34:22,490 INFO L87 Difference]: Start difference. First operand 850 states and 1035 transitions. Second operand 10 states. [2020-10-15 01:34:23,614 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 01:34:23,867 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 01:34:24,095 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 01:34:25,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:34:25,329 INFO L93 Difference]: Finished difference Result 1667 states and 2143 transitions. [2020-10-15 01:34:25,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 01:34:25,329 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 128 [2020-10-15 01:34:25,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:34:25,335 INFO L225 Difference]: With dead ends: 1667 [2020-10-15 01:34:25,335 INFO L226 Difference]: Without dead ends: 841 [2020-10-15 01:34:25,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-10-15 01:34:25,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2020-10-15 01:34:25,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 720. [2020-10-15 01:34:25,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 720 states. [2020-10-15 01:34:25,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 862 transitions. [2020-10-15 01:34:25,460 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 862 transitions. Word has length 128 [2020-10-15 01:34:25,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:34:25,461 INFO L479 AbstractCegarLoop]: Abstraction has 720 states and 862 transitions. [2020-10-15 01:34:25,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 01:34:25,461 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 862 transitions. [2020-10-15 01:34:25,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-15 01:34:25,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:34:25,463 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:34:25,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 01:34:25,464 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:34:25,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:34:25,464 INFO L82 PathProgramCache]: Analyzing trace with hash -405492817, now seen corresponding path program 1 times [2020-10-15 01:34:25,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:34:25,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299571510] [2020-10-15 01:34:25,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:34:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 01:34:25,516 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-15 01:34:25,516 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 01:34:25,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 01:34:25,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:34:25 BoogieIcfgContainer [2020-10-15 01:34:25,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 01:34:25,574 INFO L168 Benchmark]: Toolchain (without parser) took 60188.82 ms. Allocated memory was 147.3 MB in the beginning and 841.5 MB in the end (delta: 694.2 MB). Free memory was 101.5 MB in the beginning and 170.4 MB in the end (delta: -68.9 MB). Peak memory consumption was 625.2 MB. Max. memory is 7.1 GB. [2020-10-15 01:34:25,575 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 147.3 MB. Free memory was 120.6 MB in the beginning and 120.2 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. [2020-10-15 01:34:25,580 INFO L168 Benchmark]: CACSL2BoogieTranslator took 644.10 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 101.0 MB in the beginning and 174.7 MB in the end (delta: -73.7 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-10-15 01:34:25,586 INFO L168 Benchmark]: Boogie Preprocessor took 123.31 ms. Allocated memory is still 205.0 MB. Free memory was 174.7 MB in the beginning and 170.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-10-15 01:34:25,589 INFO L168 Benchmark]: RCFGBuilder took 1165.63 ms. Allocated memory was 205.0 MB in the beginning and 233.3 MB in the end (delta: 28.3 MB). Free memory was 170.6 MB in the beginning and 194.0 MB in the end (delta: -23.4 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. [2020-10-15 01:34:25,590 INFO L168 Benchmark]: TraceAbstraction took 58250.75 ms. Allocated memory was 233.3 MB in the beginning and 841.5 MB in the end (delta: 608.2 MB). Free memory was 194.0 MB in the beginning and 170.4 MB in the end (delta: 23.7 MB). Peak memory consumption was 631.8 MB. Max. memory is 7.1 GB. [2020-10-15 01:34:25,597 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 147.3 MB. Free memory was 120.6 MB in the beginning and 120.2 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 644.10 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 101.0 MB in the beginning and 174.7 MB in the end (delta: -73.7 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.31 ms. Allocated memory is still 205.0 MB. Free memory was 174.7 MB in the beginning and 170.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1165.63 ms. Allocated memory was 205.0 MB in the beginning and 233.3 MB in the end (delta: 28.3 MB). Free memory was 170.6 MB in the beginning and 194.0 MB in the end (delta: -23.4 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 58250.75 ms. Allocated memory was 233.3 MB in the beginning and 841.5 MB in the end (delta: 608.2 MB). Free memory was 194.0 MB in the beginning and 170.4 MB in the end (delta: 23.7 MB). Peak memory consumption was 631.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 405]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L147] int pumpRunning = 0; [L148] int systemActive = 1; [L436] int cleanupTimeShifts = 4; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L512] int retValue_acc ; [L513] int tmp ; [L517] FCALL select_helpers() [L518] FCALL select_features() [L519] CALL, EXPR valid_product() [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] return (retValue_acc); [L519] RET, EXPR valid_product() [L519] tmp = valid_product() [L521] COND TRUE \read(tmp) [L523] FCALL setup() [L524] CALL runTest() [L503] CALL test() [L335] int splverifierCounter ; [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L339] int tmp___2 ; [L342] splverifierCounter = 0 [L344] COND TRUE 1 [L346] COND TRUE splverifierCounter < 4 [L352] tmp = __VERIFIER_nondet_int() [L354] COND TRUE \read(tmp) [L356] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L356] RET waterRise() [L362] tmp___0 = __VERIFIER_nondet_int() [L364] COND FALSE !(\read(tmp___0)) [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND TRUE \read(tmp___2) [L389] CALL timeShift() [L155] COND FALSE !(\read(pumpRunning)) [L162] COND TRUE \read(systemActive) [L164] CALL processEnvironment() [L184] int tmp ; [L187] COND TRUE ! pumpRunning [L189] CALL, EXPR isHighWaterLevel() [L299] int retValue_acc ; [L300] int tmp ; [L301] int tmp___0 ; [L305] CALL, EXPR isHighWaterSensorDry() [L127] int retValue_acc ; [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); [L305] RET, EXPR isHighWaterSensorDry() [L305] tmp = isHighWaterSensorDry() [L307] COND FALSE !(\read(tmp)) [L310] tmp___0 = 1 [L312] retValue_acc = tmp___0 [L313] return (retValue_acc); [L189] RET, EXPR isHighWaterLevel() [L189] tmp = isHighWaterLevel() [L191] COND TRUE \read(tmp) [L193] CALL activatePump() [L218] int tmp ; [L222] CALL, EXPR isMethaneAlarm() [L243] int retValue_acc ; [L247] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L247] RET, EXPR isMethaneLevelCritical() [L247] retValue_acc = isMethaneLevelCritical() [L249] return (retValue_acc); [L222] RET, EXPR isMethaneAlarm() [L222] tmp = isMethaneAlarm() [L224] COND FALSE !(\read(tmp)) [L228] CALL activatePump__wrappee__highWaterSensor() [L212] pumpRunning = 1 [L228] RET activatePump__wrappee__highWaterSensor() [L193] RET activatePump() [L164] RET processEnvironment() [L170] CALL __utac_acc__Specification1_spec__1() [L411] int tmp ; [L412] int tmp___0 ; [L416] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L416] RET, EXPR isMethaneLevelCritical() [L416] tmp = isMethaneLevelCritical() [L418] COND FALSE !(\read(tmp)) [L170] RET __utac_acc__Specification1_spec__1() [L389] RET timeShift() [L344] COND TRUE 1 [L346] COND TRUE splverifierCounter < 4 [L352] tmp = __VERIFIER_nondet_int() [L354] COND FALSE !(\read(tmp)) [L362] tmp___0 = __VERIFIER_nondet_int() [L364] COND TRUE \read(tmp___0) [L366] CALL changeMethaneLevel() [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 [L366] RET changeMethaneLevel() [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND TRUE \read(tmp___2) [L389] CALL timeShift() [L155] COND TRUE \read(pumpRunning) [L157] CALL lowerWaterLevel() [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 [L157] RET lowerWaterLevel() [L162] COND TRUE \read(systemActive) [L164] CALL processEnvironment() [L184] int tmp ; [L187] COND FALSE !(! pumpRunning) [L202] FCALL processEnvironment__wrappee__base() [L164] RET processEnvironment() [L170] CALL __utac_acc__Specification1_spec__1() [L411] int tmp ; [L412] int tmp___0 ; [L416] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L416] RET, EXPR isMethaneLevelCritical() [L416] tmp = isMethaneLevelCritical() [L418] COND TRUE \read(tmp) [L420] CALL, EXPR isPumpRunning() [L254] int retValue_acc ; [L257] retValue_acc = pumpRunning [L258] return (retValue_acc); [L420] RET, EXPR isPumpRunning() [L420] tmp___0 = isPumpRunning() [L422] COND TRUE \read(tmp___0) [L424] CALL __automaton_fail() [L405] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 58.1s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 29.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 987 SDtfs, 2684 SDslu, 1319 SDs, 0 SdLazy, 6987 SolverSat, 1887 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 372 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 12.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1164occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 7 MinimizatonAttempts, 1070 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 26.6s InterpolantComputationTime, 798 NumberOfCodeBlocks, 798 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 659 ConstructedInterpolants, 0 QuantifiedInterpolants, 233110 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 96/106 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...