/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:44:04,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:44:04,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:44:04,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:44:04,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:44:04,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:44:04,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:44:04,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:44:04,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:44:04,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:44:04,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:44:04,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:44:04,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:44:04,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:44:04,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:44:04,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:44:04,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:44:04,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:44:04,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:44:04,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:44:04,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:44:04,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:44:04,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:44:04,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:44:04,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:44:04,240 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:44:04,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:44:04,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:44:04,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:44:04,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:44:04,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:44:04,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:44:04,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:44:04,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:44:04,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:44:04,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:44:04,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:44:04,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:44:04,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:44:04,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:44:04,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:44:04,259 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:44:04,312 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:44:04,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:44:04,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:44:04,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:44:04,315 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:44:04,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:44:04,316 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:44:04,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:44:04,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:44:04,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:44:04,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:44:04,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:44:04,318 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:44:04,318 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:44:04,318 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:44:04,319 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:44:04,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:44:04,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:44:04,319 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:44:04,319 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:44:04,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:44:04,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:44:04,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:44:04,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:44:04,320 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:44:04,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:44:04,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:44:04,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:44:04,321 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:44:04,321 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 01:44:04,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:44:04,802 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:44:04,806 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:44:04,811 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:44:04,811 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:44:04,812 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-09-25 01:44:04,913 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5c5cb2e2/166a1582569c44a686fa77fb55ba8871/FLAG49bf3c403 [2020-09-25 01:44:05,521 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:44:05,522 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-09-25 01:44:05,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5c5cb2e2/166a1582569c44a686fa77fb55ba8871/FLAG49bf3c403 [2020-09-25 01:44:05,798 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5c5cb2e2/166a1582569c44a686fa77fb55ba8871 [2020-09-25 01:44:05,811 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:44:05,816 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:44:05,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:44:05,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:44:05,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:44:05,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:44:05" (1/1) ... [2020-09-25 01:44:05,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:05, skipping insertion in model container [2020-09-25 01:44:05,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:44:05" (1/1) ... [2020-09-25 01:44:05,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:44:05,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:44:06,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:44:06,298 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:44:06,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:44:06,567 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:44:06,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:06 WrapperNode [2020-09-25 01:44:06,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:44:06,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:44:06,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:44:06,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:44:06,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:06" (1/1) ... [2020-09-25 01:44:06,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:06" (1/1) ... [2020-09-25 01:44:06,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:06" (1/1) ... [2020-09-25 01:44:06,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:06" (1/1) ... [2020-09-25 01:44:06,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:06" (1/1) ... [2020-09-25 01:44:06,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:06" (1/1) ... [2020-09-25 01:44:06,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:06" (1/1) ... [2020-09-25 01:44:06,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:44:06,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:44:06,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:44:06,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:44:06,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:44:06,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:44:06,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:44:06,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:44:06,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:44:06,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:44:06,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:44:06,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:44:06,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:44:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:44:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:44:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:44:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:44:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:44:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:44:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 01:44:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:44:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:44:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:44:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:44:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:44:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:44:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:44:06,771 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:44:06,771 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:44:06,771 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:44:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:44:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:44:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:44:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:44:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:44:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:44:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:44:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:44:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:44:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:44:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:44:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:44:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:44:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:44:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:44:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:44:06,775 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:44:06,775 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:44:06,775 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:44:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:44:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:44:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:44:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:44:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:44:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:44:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:44:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:44:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:44:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:44:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:44:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:44:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:44:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:44:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:44:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:44:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:44:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:44:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:44:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:44:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:44:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:44:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:44:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:44:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:44:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:44:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:44:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:44:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:44:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:44:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 01:44:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:44:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:44:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:44:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:44:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:44:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:44:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:44:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:44:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:44:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:44:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:44:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:44:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:44:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:44:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:44:08,023 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:44:08,023 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:44:08,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:44:08 BoogieIcfgContainer [2020-09-25 01:44:08,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:44:08,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:44:08,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:44:08,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:44:08,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:44:05" (1/3) ... [2020-09-25 01:44:08,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6a89e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:44:08, skipping insertion in model container [2020-09-25 01:44:08,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:06" (2/3) ... [2020-09-25 01:44:08,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6a89e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:44:08, skipping insertion in model container [2020-09-25 01:44:08,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:44:08" (3/3) ... [2020-09-25 01:44:08,042 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2020-09-25 01:44:08,054 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:44:08,066 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:44:08,092 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:44:08,128 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:44:08,128 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:44:08,128 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:44:08,128 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:44:08,129 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:44:08,129 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:44:08,129 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:44:08,129 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:44:08,161 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states. [2020-09-25 01:44:08,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 01:44:08,180 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:44:08,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:44:08,183 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:44:08,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:44:08,192 INFO L82 PathProgramCache]: Analyzing trace with hash -382472662, now seen corresponding path program 1 times [2020-09-25 01:44:08,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:44:08,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [617737077] [2020-09-25 01:44:08,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:44:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:08,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:08,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:09,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:10,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:10,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:13,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:13,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 01:44:13,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:44:13,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 01:44:13,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:13,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:13,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:44:13,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:13,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:44:14,182 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:44:14,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:44:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:14,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:14,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:14,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:44:14,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:14,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 01:44:14,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:14,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:14,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:14,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:14,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:44:14,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:44:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:14,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:14,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:14,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:44:14,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:14,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:44:14,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:14,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:14,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:14,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:14,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:44:14,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:44:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:14,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:14,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:14,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:44:14,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:14,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:44:14,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:14,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:14,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:14,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:14,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:14,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:44:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:14,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:14,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:14,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:44:14,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:14,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:44:14,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:14,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:14,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:14,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:14,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:14,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:44:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:14,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:14,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:14,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:44:14,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:14,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:44:14,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:14,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:14,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:14,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:14,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:44:14,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:44:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:14,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:14,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:14,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:44:14,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:14,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:44:14,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:14,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:14,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:44:14,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:14,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:14,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:44:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:14,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:14,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:14,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:44:14,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:14,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:44:14,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:14,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:14,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:44:14,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:14,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:44:14,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:44:14,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [617737077] [2020-09-25 01:44:14,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:44:14,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:44:14,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646899063] [2020-09-25 01:44:14,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:44:14,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:44:14,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:44:14,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:44:14,584 INFO L87 Difference]: Start difference. First operand 301 states. Second operand 3 states. [2020-09-25 01:44:16,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:44:16,134 INFO L93 Difference]: Finished difference Result 467 states and 558 transitions. [2020-09-25 01:44:16,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:44:16,136 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 01:44:16,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:44:16,157 INFO L225 Difference]: With dead ends: 467 [2020-09-25 01:44:16,157 INFO L226 Difference]: Without dead ends: 291 [2020-09-25 01:44:16,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:44:16,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-09-25 01:44:16,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 250. [2020-09-25 01:44:16,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-09-25 01:44:16,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 272 transitions. [2020-09-25 01:44:16,284 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 272 transitions. Word has length 142 [2020-09-25 01:44:16,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:44:16,285 INFO L479 AbstractCegarLoop]: Abstraction has 250 states and 272 transitions. [2020-09-25 01:44:16,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:44:16,286 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 272 transitions. [2020-09-25 01:44:16,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 01:44:16,291 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:44:16,291 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:44:16,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:44:16,291 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:44:16,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:44:16,292 INFO L82 PathProgramCache]: Analyzing trace with hash -443770342, now seen corresponding path program 1 times [2020-09-25 01:44:16,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:44:16,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1593818739] [2020-09-25 01:44:16,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:44:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:16,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:16,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:17,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:17,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:18,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:21,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:21,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 01:44:21,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:44:21,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 01:44:21,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:21,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:44:21,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:44:21,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:44:21,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:44:21,679 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:44:21,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:44:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:21,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:21,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:21,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:44:21,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:21,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 01:44:21,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:21,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:21,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:21,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:21,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:21,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:44:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:21,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:21,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:21,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:44:21,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:21,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:44:21,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:21,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:21,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:21,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:21,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:21,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:44:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:21,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:21,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:21,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:44:21,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:21,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:44:21,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:21,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:21,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:21,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:21,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:21,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:44:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:21,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:21,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:21,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:44:21,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:21,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:44:21,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:21,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:21,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:21,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:21,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 01:44:21,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:44:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:21,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:21,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:21,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:44:21,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:21,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:44:21,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:21,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:21,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:21,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:21,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:21,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:44:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:21,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:21,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:21,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:44:21,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:21,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:44:21,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:21,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:21,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:44:21,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:21,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:21,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:44:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:21,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:21,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:21,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:44:21,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:21,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:44:21,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:21,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:21,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:44:21,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:21,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:21,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:44:21,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1593818739] [2020-09-25 01:44:21,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:44:21,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:44:21,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507011487] [2020-09-25 01:44:21,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:44:21,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:44:21,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:44:21,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:44:21,908 INFO L87 Difference]: Start difference. First operand 250 states and 272 transitions. Second operand 4 states. [2020-09-25 01:44:22,629 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:44:23,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:44:23,644 INFO L93 Difference]: Finished difference Result 384 states and 433 transitions. [2020-09-25 01:44:23,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:44:23,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 01:44:23,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:44:23,649 INFO L225 Difference]: With dead ends: 384 [2020-09-25 01:44:23,649 INFO L226 Difference]: Without dead ends: 274 [2020-09-25 01:44:23,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:44:23,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-25 01:44:23,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 240. [2020-09-25 01:44:23,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-25 01:44:23,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 259 transitions. [2020-09-25 01:44:23,699 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 259 transitions. Word has length 143 [2020-09-25 01:44:23,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:44:23,700 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 259 transitions. [2020-09-25 01:44:23,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:44:23,700 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 259 transitions. [2020-09-25 01:44:23,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 01:44:23,703 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:44:23,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:44:23,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:44:23,704 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:44:23,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:44:23,704 INFO L82 PathProgramCache]: Analyzing trace with hash 149326545, now seen corresponding path program 1 times [2020-09-25 01:44:23,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:44:23,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058878962] [2020-09-25 01:44:23,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:44:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:23,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:23,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:24,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:24,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:28,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:28,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 01:44:28,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:44:28,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 01:44:28,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:28,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:44:28,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 01:44:28,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:44:28,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:29,131 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:44:29,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:44:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:29,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:29,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:29,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:44:29,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:29,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-25 01:44:29,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:29,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:29,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:29,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:29,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:29,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:44:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:29,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:29,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:29,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:44:29,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:29,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:44:29,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:29,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:29,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:29,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:29,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:44:29,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:44:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:29,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:29,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:29,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:44:29,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:29,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:44:29,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:29,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:29,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:29,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:29,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:44:29,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:44:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:29,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:29,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:29,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:44:29,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:29,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:44:29,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:29,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:29,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:29,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:29,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:44:29,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:44:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:29,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:29,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:29,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:44:29,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:29,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:44:29,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:29,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:29,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:29,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:29,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:44:29,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:44:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:29,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:29,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:29,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:44:29,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:29,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:44:29,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:29,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:44:29,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:29,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:44:29,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:44:29,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 01:44:29,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:29,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:29,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:29,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:44:29,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:29,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:44:29,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:29,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:44:29,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:29,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:44:29,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:44:29,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:44:29,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058878962] [2020-09-25 01:44:29,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:44:29,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:44:29,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968222052] [2020-09-25 01:44:29,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:44:29,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:44:29,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:44:29,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:44:29,509 INFO L87 Difference]: Start difference. First operand 240 states and 259 transitions. Second operand 8 states. [2020-09-25 01:44:30,119 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:44:31,156 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:44:31,477 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:44:31,821 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:44:32,166 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:44:32,480 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:44:33,068 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:44:33,363 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:44:33,724 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:44:34,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:44:34,483 INFO L93 Difference]: Finished difference Result 485 states and 564 transitions. [2020-09-25 01:44:34,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 01:44:34,484 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2020-09-25 01:44:34,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:44:34,488 INFO L225 Difference]: With dead ends: 485 [2020-09-25 01:44:34,488 INFO L226 Difference]: Without dead ends: 355 [2020-09-25 01:44:34,490 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 01:44:34,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2020-09-25 01:44:34,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 326. [2020-09-25 01:44:34,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-09-25 01:44:34,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 364 transitions. [2020-09-25 01:44:34,544 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 364 transitions. Word has length 152 [2020-09-25 01:44:34,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:44:34,545 INFO L479 AbstractCegarLoop]: Abstraction has 326 states and 364 transitions. [2020-09-25 01:44:34,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:44:34,545 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 364 transitions. [2020-09-25 01:44:34,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 01:44:34,548 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:44:34,548 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:44:34,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:44:34,549 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:44:34,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:44:34,549 INFO L82 PathProgramCache]: Analyzing trace with hash 81638099, now seen corresponding path program 1 times [2020-09-25 01:44:34,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:44:34,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [981522477] [2020-09-25 01:44:34,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:44:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:34,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:35,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:39,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:39,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 01:44:39,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:44:39,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4869 [2020-09-25 01:44:39,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:39,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:44:39,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 01:44:39,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:44:39,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:39,772 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:44:39,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:44:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:39,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:39,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:39,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:44:39,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:39,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 01:44:39,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:39,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:39,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:39,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:39,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:39,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:44:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:39,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:39,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:39,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:44:39,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:39,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:44:39,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:39,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:39,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:39,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:39,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:39,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:44:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:39,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:39,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:39,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:44:39,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:39,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:44:39,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:39,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:39,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:39,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:39,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:39,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:44:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:39,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:39,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:39,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:44:39,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:39,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:44:39,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:39,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:39,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:39,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:39,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:39,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:44:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:39,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:39,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:39,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:44:39,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:39,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:44:39,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:39,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:39,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:39,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:39,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:39,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 01:44:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:39,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:39,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:39,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 01:44:39,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:39,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 01:44:39,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:39,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:44:39,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 01:44:39,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:44:39,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:44:40,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:44:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:40,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:40,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:40,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 01:44:40,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:40,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 01:44:40,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:40,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:44:40,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:44:40,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:44:40,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:44:40,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:44:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:40,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:40,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:40,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:44:40,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:40,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 01:44:40,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:40,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:44:40,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 01:44:40,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:44:40,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:44:40,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:44:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:40,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:40,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:40,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:44:40,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:40,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:44:40,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:40,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:44:40,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:40,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:44:40,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:44:40,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:44:40,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:40,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:40,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:40,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:44:40,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:40,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:44:40,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:40,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:40,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 01:44:40,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:40,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:44:40,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 01:44:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:40,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:40,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:40,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:44:40,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:40,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:44:40,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:40,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:40,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:44:40,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:40,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:40,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 01:44:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:40,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:40,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:40,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:44:40,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:40,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:44:40,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:40,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:40,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:44:40,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:40,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:44:40,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:44:40,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [981522477] [2020-09-25 01:44:40,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:44:40,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:44:40,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554407775] [2020-09-25 01:44:40,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:44:40,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:44:40,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:44:40,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:44:40,320 INFO L87 Difference]: Start difference. First operand 326 states and 364 transitions. Second operand 8 states. [2020-09-25 01:44:41,611 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:44:41,968 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:44:42,320 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:44:42,673 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:44:42,968 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:44:43,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:44:43,765 INFO L93 Difference]: Finished difference Result 605 states and 722 transitions. [2020-09-25 01:44:43,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 01:44:43,766 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 190 [2020-09-25 01:44:43,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:44:43,770 INFO L225 Difference]: With dead ends: 605 [2020-09-25 01:44:43,770 INFO L226 Difference]: Without dead ends: 389 [2020-09-25 01:44:43,771 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-25 01:44:43,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-09-25 01:44:43,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 332. [2020-09-25 01:44:43,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-09-25 01:44:43,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 370 transitions. [2020-09-25 01:44:43,821 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 370 transitions. Word has length 190 [2020-09-25 01:44:43,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:44:43,822 INFO L479 AbstractCegarLoop]: Abstraction has 332 states and 370 transitions. [2020-09-25 01:44:43,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:44:43,822 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 370 transitions. [2020-09-25 01:44:43,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 01:44:43,824 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:44:43,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:44:43,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:44:43,825 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:44:43,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:44:43,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1055508275, now seen corresponding path program 1 times [2020-09-25 01:44:43,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:44:43,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2022083811] [2020-09-25 01:44:43,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:44:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:43,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:44,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:48,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:48,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 01:44:48,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:44:48,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 01:44:48,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:48,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:44:48,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-25 01:44:48,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:44:48,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:49,163 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:44:49,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:44:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:49,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:49,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:49,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:44:49,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:49,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 01:44:49,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:49,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:49,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:44:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:49,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:49,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:49,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:44:49,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:49,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:44:49,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:49,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:49,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:49,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:49,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:44:49,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:44:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:49,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:49,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:49,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:44:49,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:49,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:44:49,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:49,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:49,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:49,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:49,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:44:49,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:44:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:49,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:49,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:49,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:44:49,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:49,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:44:49,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:49,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:49,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:49,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:49,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:49,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:44:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:49,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:49,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:49,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:44:49,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:49,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:44:49,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:49,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:49,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:49,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:49,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:49,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 01:44:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:49,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:49,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:49,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 01:44:49,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:49,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 01:44:49,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:49,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:44:49,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 01:44:49,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:44:49,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:49,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:44:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:49,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:49,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:49,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 01:44:49,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:49,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 01:44:49,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:49,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:44:49,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 01:44:49,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:44:49,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:49,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:44:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:49,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:49,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:49,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:44:49,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:49,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 01:44:49,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:49,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:44:49,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:49,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 01:44:49,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:49,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:44:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:49,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:49,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:49,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:44:49,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:49,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:44:49,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:49,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:49,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:44:49,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:49,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:49,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:44:49,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:49,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:49,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:49,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:44:49,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:49,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:44:49,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:49,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:49,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 01:44:49,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:49,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:49,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 01:44:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:49,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:49,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:49,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:44:49,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:49,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:44:49,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:49,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:49,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:44:49,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:49,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:49,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 01:44:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:49,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:49,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:44:49,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:44:49,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:44:49,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:44:49,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:44:49,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:44:49,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:44:49,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:44:49,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:44:49,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:44:49,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2022083811] [2020-09-25 01:44:49,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:44:49,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:44:49,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792796333] [2020-09-25 01:44:49,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:44:49,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:44:49,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:44:49,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:44:49,621 INFO L87 Difference]: Start difference. First operand 332 states and 370 transitions. Second operand 9 states. [2020-09-25 01:44:51,107 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:44:51,414 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189