/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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:55:49,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:55:49,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:55:49,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:55:49,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:55:49,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:55:49,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:55:49,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:55:49,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:55:49,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:55:49,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:55:49,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:55:49,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:55:49,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:55:49,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:55:49,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:55:49,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:55:49,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:55:49,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:55:49,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:55:49,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:55:49,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:55:49,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:55:49,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:55:49,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:55:49,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:55:49,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:55:49,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:55:49,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:55:49,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:55:49,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:55:49,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:55:49,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:55:49,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:55:49,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:55:49,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:55:49,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:55:49,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:55:49,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:55:49,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:55:49,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:55:49,266 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 [2020-09-24 17:55:49,308 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:55:49,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:55:49,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:55:49,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:55:49,311 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:55:49,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:55:49,312 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:55:49,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:55:49,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:55:49,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:55:49,314 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:55:49,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:55:49,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:55:49,314 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:55:49,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:55:49,315 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:55:49,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:55:49,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:55:49,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:55:49,316 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:55:49,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:55:49,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:55:49,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:55:49,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:55:49,317 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:55:49,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:55:49,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:55:49,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:55:49,318 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:55:49,318 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 17:55:49,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:55:49,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:55:49,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:55:49,800 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:55:49,801 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:55:49,802 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c [2020-09-24 17:55:49,891 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cae660b27/a6b2f62ba5f34c08bb5fb7a97b11b4d1/FLAG158d72e8e [2020-09-24 17:55:50,510 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:55:50,515 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c [2020-09-24 17:55:50,547 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cae660b27/a6b2f62ba5f34c08bb5fb7a97b11b4d1/FLAG158d72e8e [2020-09-24 17:55:50,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cae660b27/a6b2f62ba5f34c08bb5fb7a97b11b4d1 [2020-09-24 17:55:50,795 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:55:50,801 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:55:50,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:55:50,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:55:50,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:55:50,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:55:50" (1/1) ... [2020-09-24 17:55:50,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@366b14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:50, skipping insertion in model container [2020-09-24 17:55:50,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:55:50" (1/1) ... [2020-09-24 17:55:50,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:55:50,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:55:51,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:55:51,447 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:55:51,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:55:51,570 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:55:51,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:51 WrapperNode [2020-09-24 17:55:51,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:55:51,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:55:51,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:55:51,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:55:51,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:51" (1/1) ... [2020-09-24 17:55:51,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:51" (1/1) ... [2020-09-24 17:55:51,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:51" (1/1) ... [2020-09-24 17:55:51,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:51" (1/1) ... [2020-09-24 17:55:51,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:51" (1/1) ... [2020-09-24 17:55:51,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:51" (1/1) ... [2020-09-24 17:55:51,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:51" (1/1) ... [2020-09-24 17:55:51,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:55:51,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:55:51,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:55:51,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:55:51,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:51" (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 [2020-09-24 17:55:51,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:55:51,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:55:51,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 17:55:51,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 17:55:51,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 17:55:51,759 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 17:55:51,760 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 17:55:51,760 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 17:55:51,760 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 17:55:51,760 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 17:55:51,760 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 17:55:51,761 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 17:55:51,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 17:55:51,761 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 17:55:51,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 17:55:51,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 17:55:51,762 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 17:55:51,762 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 17:55:51,762 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 17:55:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 17:55:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 17:55:51,764 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 17:55:51,764 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 17:55:51,764 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 17:55:51,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 17:55:51,765 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 17:55:51,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 17:55:51,766 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 17:55:51,766 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 17:55:51,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 17:55:51,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 17:55:51,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 17:55:51,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 17:55:51,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 17:55:51,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 17:55:51,767 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 17:55:51,767 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 17:55:51,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 17:55:51,767 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 17:55:51,767 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:55:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:55:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:55:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 17:55:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 17:55:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 17:55:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 17:55:51,769 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 17:55:51,769 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 17:55:51,769 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 17:55:51,769 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 17:55:51,769 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 17:55:51,769 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 17:55:51,770 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 17:55:51,770 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 17:55:51,770 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 17:55:51,770 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 17:55:51,770 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 17:55:51,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:55:51,771 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 17:55:51,771 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 17:55:51,771 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 17:55:51,771 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 17:55:51,771 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 17:55:51,771 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 17:55:51,772 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 17:55:51,772 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 17:55:51,772 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 17:55:51,772 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 17:55:51,772 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 17:55:51,772 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 17:55:51,773 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 17:55:51,773 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 17:55:51,773 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:55:51,773 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:55:51,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 17:55:51,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:55:51,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:55:51,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:55:51,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:55:51,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 17:55:51,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:55:51,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 17:55:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 17:55:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:55:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 17:55:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 17:55:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 17:55:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 17:55:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 17:55:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 17:55:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:55:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:55:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:55:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:55:53,023 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:55:53,024 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 17:55:53,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:55:53 BoogieIcfgContainer [2020-09-24 17:55:53,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:55:53,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:55:53,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:55:53,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:55:53,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:55:50" (1/3) ... [2020-09-24 17:55:53,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580dc3e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:55:53, skipping insertion in model container [2020-09-24 17:55:53,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:55:51" (2/3) ... [2020-09-24 17:55:53,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580dc3e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:55:53, skipping insertion in model container [2020-09-24 17:55:53,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:55:53" (3/3) ... [2020-09-24 17:55:53,048 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product47.cil.c [2020-09-24 17:55:53,061 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:55:53,074 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:55:53,094 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:55:53,126 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:55:53,126 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:55:53,126 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:55:53,126 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:55:53,127 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:55:53,127 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:55:53,127 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:55:53,127 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:55:53,155 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-24 17:55:53,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 17:55:53,174 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:55:53,175 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] [2020-09-24 17:55:53,176 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:55:53,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:55:53,183 INFO L82 PathProgramCache]: Analyzing trace with hash -479235834, now seen corresponding path program 1 times [2020-09-24 17:55:53,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:55:53,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154233224] [2020-09-24 17:55:53,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:55:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:53,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:53,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:55,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:56,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:58,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:58,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:58,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 17:55:58,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:55:58,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-24 17:55:58,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:58,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:58,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 17:55:58,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:58,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 17:55:59,148 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:55:59,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:55:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:59,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:59,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:59,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:55:59,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:59,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-24 17:55:59,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:59,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:59,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:59,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:59,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:55:59,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:55:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:59,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:59,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:59,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:59,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:59,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:55:59,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:59,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:59,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:59,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:59,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:59,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:55:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:59,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:59,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:59,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:59,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:59,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:55:59,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:59,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:59,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:59,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:59,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:59,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:55:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:59,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:59,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:59,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:59,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:59,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:55:59,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:59,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:59,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:59,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:59,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:55:59,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:55:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:59,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:59,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:59,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:59,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:59,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:55:59,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:59,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:59,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:59,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:59,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:59,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 17:55:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:59,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:59,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:59,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:59,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:59,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:55:59,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:59,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:59,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:55:59,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:59,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:59,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 17:55:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:59,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:59,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:59,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:59,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:59,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:55:59,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:59,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:59,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:55:59,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:59,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:59,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:55:59,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154233224] [2020-09-24 17:55:59,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:55:59,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:55:59,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574039048] [2020-09-24 17:55:59,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:55:59,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:55:59,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:55:59,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:55:59,584 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 3 states. [2020-09-24 17:56:01,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:56:01,176 INFO L93 Difference]: Finished difference Result 501 states and 601 transitions. [2020-09-24 17:56:01,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:56:01,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 17:56:01,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:56:01,200 INFO L225 Difference]: With dead ends: 501 [2020-09-24 17:56:01,200 INFO L226 Difference]: Without dead ends: 310 [2020-09-24 17:56:01,211 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 [2020-09-24 17:56:01,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-09-24 17:56:01,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 265. [2020-09-24 17:56:01,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-09-24 17:56:01,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 291 transitions. [2020-09-24 17:56:01,398 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 291 transitions. Word has length 142 [2020-09-24 17:56:01,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:56:01,399 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 291 transitions. [2020-09-24 17:56:01,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:56:01,399 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 291 transitions. [2020-09-24 17:56:01,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 17:56:01,414 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:01,415 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] [2020-09-24 17:56:01,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:56:01,416 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:01,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:01,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1495008589, now seen corresponding path program 1 times [2020-09-24 17:56:01,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:01,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1401771505] [2020-09-24 17:56:01,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:01,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:01,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:03,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:03,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:04,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:06,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:06,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 17:56:06,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:56:06,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-24 17:56:06,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:06,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:06,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 17:56:06,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:56:06,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:06,826 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:56:06,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:56:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:06,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:06,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:06,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:56:06,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:06,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 17:56:06,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:06,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:06,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:06,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:06,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:06,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:56:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:06,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:06,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:06,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:06,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:06,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:06,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:06,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:06,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:06,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:06,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:06,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:56:06,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:06,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:06,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:06,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:06,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:06,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:56:06,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:06,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:06,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:06,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:06,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:07,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:56:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:07,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:07,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:07,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:07,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:07,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:56:07,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:07,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:07,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:07,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:07,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:07,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:56:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:07,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:07,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:07,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:07,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:07,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:07,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:07,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:07,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:07,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:07,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:07,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 17:56:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:07,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:07,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:07,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:07,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:07,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:07,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:07,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:07,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 17:56:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:07,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:07,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:07,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:07,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:07,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:07,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:07,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:07,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:07,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:07,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:07,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:56:07,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1401771505] [2020-09-24 17:56:07,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:56:07,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:56:07,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083811829] [2020-09-24 17:56:07,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:56:07,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:56:07,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:56:07,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:56:07,065 INFO L87 Difference]: Start difference. First operand 265 states and 291 transitions. Second operand 4 states. [2020-09-24 17:56:07,698 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:56:08,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:56:08,702 INFO L93 Difference]: Finished difference Result 412 states and 468 transitions. [2020-09-24 17:56:08,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:56:08,703 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 17:56:08,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:56:08,707 INFO L225 Difference]: With dead ends: 412 [2020-09-24 17:56:08,707 INFO L226 Difference]: Without dead ends: 293 [2020-09-24 17:56:08,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:56:08,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-09-24 17:56:08,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 255. [2020-09-24 17:56:08,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-24 17:56:08,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 278 transitions. [2020-09-24 17:56:08,753 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 278 transitions. Word has length 143 [2020-09-24 17:56:08,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:56:08,754 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 278 transitions. [2020-09-24 17:56:08,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:56:08,754 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 278 transitions. [2020-09-24 17:56:08,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-24 17:56:08,756 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:08,756 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] [2020-09-24 17:56:08,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:56:08,757 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:08,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:08,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1257512961, now seen corresponding path program 1 times [2020-09-24 17:56:08,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:08,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1646574088] [2020-09-24 17:56:08,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:08,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:09,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:10,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:10,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:13,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:13,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 17:56:13,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:56:13,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-24 17:56:13,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:13,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:56:13,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 17:56:13,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 17:56:13,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:14,132 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:56:14,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:56:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:14,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:14,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:14,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:56:14,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:14,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 17:56:14,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:14,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:14,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:14,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:14,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:14,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:56:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:14,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:14,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:14,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:14,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:14,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:14,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:14,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:14,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:14,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:14,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:14,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:56:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:14,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:14,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:14,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:14,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:14,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:56:14,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:14,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:14,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:14,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:14,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:14,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:56:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:14,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:14,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:14,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:14,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:14,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:56:14,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:14,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:14,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:14,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:14,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:14,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:56:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:14,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:14,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:14,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:14,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:14,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:56:14,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:14,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:14,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:14,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:14,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:14,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 17:56:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:14,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:14,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:14,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:14,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:14,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:14,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:14,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:56:14,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:14,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:56:14,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:14,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 17:56:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:14,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:14,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:14,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:14,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:14,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 17:56:14,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:14,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:56:14,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:14,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:56:14,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:14,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:56:14,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1646574088] [2020-09-24 17:56:14,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:56:14,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 17:56:14,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320732416] [2020-09-24 17:56:14,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:56:14,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:56:14,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:56:14,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:56:14,444 INFO L87 Difference]: Start difference. First operand 255 states and 278 transitions. Second operand 8 states. [2020-09-24 17:56:15,100 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:56:16,317 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:56:16,673 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:56:16,958 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:56:17,286 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:56:17,565 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:56:18,426 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:56:18,756 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:56:19,096 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:56:19,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:56:19,805 INFO L93 Difference]: Finished difference Result 529 states and 621 transitions. [2020-09-24 17:56:19,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 17:56:19,806 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2020-09-24 17:56:19,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:56:19,812 INFO L225 Difference]: With dead ends: 529 [2020-09-24 17:56:19,812 INFO L226 Difference]: Without dead ends: 384 [2020-09-24 17:56:19,813 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 [2020-09-24 17:56:19,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2020-09-24 17:56:19,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 353. [2020-09-24 17:56:19,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-09-24 17:56:19,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 396 transitions. [2020-09-24 17:56:19,876 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 396 transitions. Word has length 152 [2020-09-24 17:56:19,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:56:19,877 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 396 transitions. [2020-09-24 17:56:19,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:56:19,877 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 396 transitions. [2020-09-24 17:56:19,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 17:56:19,880 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:19,880 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:56:19,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:56:19,881 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:19,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:19,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1594978526, now seen corresponding path program 1 times [2020-09-24 17:56:19,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:19,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663523293] [2020-09-24 17:56:19,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:19,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:20,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:20,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:24,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:24,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 17:56:24,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:56:24,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-24 17:56:24,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:24,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:56:24,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-24 17:56:24,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 17:56:24,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:25,254 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:56:25,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:56:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:25,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:25,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:25,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:56:25,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:25,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 17:56:25,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:25,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:25,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:25,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:25,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:25,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:56:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:25,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:25,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:25,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:25,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:25,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:25,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:25,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:25,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:25,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:25,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:25,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:56:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:25,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:25,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:25,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:25,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:25,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:25,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:25,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:25,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:25,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:25,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:25,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:56:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:25,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:25,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:25,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:25,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:25,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:56:25,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:25,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:25,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:25,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:25,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:25,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:56:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:25,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:25,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:25,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:25,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:25,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 17:56:25,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:25,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:25,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:25,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:25,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:25,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 17:56:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:25,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:25,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:25,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 17:56:25,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:25,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 17:56:25,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:25,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:56:25,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 17:56:25,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 17:56:25,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:25,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:56:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:25,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:25,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:25,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 17:56:25,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:25,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 17:56:25,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:25,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:56:25,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 17:56:25,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 17:56:25,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:25,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:56:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:25,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:25,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:25,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 17:56:25,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:25,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 17:56:25,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:25,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:56:25,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:25,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 17:56:25,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:25,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 17:56:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:25,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:25,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:25,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 17:56:25,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:25,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:56:25,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:25,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:25,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:25,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:25,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:25,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 17:56:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:25,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:25,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:25,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 17:56:25,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:25,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 17:56:25,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:25,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:25,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 17:56:25,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:25,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:25,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 17:56:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:26,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:26,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:26,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:56:26,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:26,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:26,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:26,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:26,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:26,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:26,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:26,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 17:56:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:26,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:26,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:26,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:26,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:26,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:26,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:26,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:26,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:26,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:26,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:26,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 17:56:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:26,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:26,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:26,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:56:26,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:26,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:26,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:26,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:26,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:26,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:26,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:56:26,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 17:56:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:26,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:26,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:26,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:26,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:26,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:26,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:26,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:26,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:26,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:26,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:26,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 17:56:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:26,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:26,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:26,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:26,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:26,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:56:26,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:26,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:26,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:56:26,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:26,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:26,136 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 17:56:26,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1663523293] [2020-09-24 17:56:26,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:56:26,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 17:56:26,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695029938] [2020-09-24 17:56:26,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 17:56:26,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:56:26,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 17:56:26,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 17:56:26,140 INFO L87 Difference]: Start difference. First operand 353 states and 396 transitions. Second operand 9 states. [2020-09-24 17:56:27,907 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:56:28,195 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:56:28,512 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:56:28,828 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:56:29,178 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 17:56:29,489 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:56:30,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:56:30,403 INFO L93 Difference]: Finished difference Result 663 states and 792 transitions. [2020-09-24 17:56:30,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 17:56:30,404 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 212 [2020-09-24 17:56:30,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:56:30,409 INFO L225 Difference]: With dead ends: 663 [2020-09-24 17:56:30,409 INFO L226 Difference]: Without dead ends: 420 [2020-09-24 17:56:30,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-24 17:56:30,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-09-24 17:56:30,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 364. [2020-09-24 17:56:30,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-09-24 17:56:30,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 407 transitions. [2020-09-24 17:56:30,464 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 407 transitions. Word has length 212 [2020-09-24 17:56:30,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:56:30,464 INFO L479 AbstractCegarLoop]: Abstraction has 364 states and 407 transitions. [2020-09-24 17:56:30,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 17:56:30,465 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 407 transitions. [2020-09-24 17:56:30,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 17:56:30,469 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:56:30,470 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:56:30,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:56:30,470 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:56:30,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:56:30,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1015880578, now seen corresponding path program 1 times [2020-09-24 17:56:30,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:56:30,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1513821747] [2020-09-24 17:56:30,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:56:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:30,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:30,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:31,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:35,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:35,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 17:56:35,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:56:35,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-24 17:56:35,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:35,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:56:35,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-24 17:56:35,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:56:35,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:35,870 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:56:35,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:56:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:35,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:35,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:35,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:56:35,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:35,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 17:56:35,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:35,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:35,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:35,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:35,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:35,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:56:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:35,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:35,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:35,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:35,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:35,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:56:35,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:35,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:35,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:35,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:35,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:35,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:56:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:35,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:35,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:35,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:35,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:35,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:56:35,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:35,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:35,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:35,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:35,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:35,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:56:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:36,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:36,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:36,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:56:36,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:36,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:56:36,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:36,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:36,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:36,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:36,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:36,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:56:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:36,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:36,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:36,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:56:36,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:36,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:56:36,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:36,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:56:36,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:56:36,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:56:36,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:36,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 17:56:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:36,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:56:36,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:56:36,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 17:56:36,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:56:36,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 17:56:36,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:56:36,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:56:36,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 17:56:36,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:56:36,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:56:36,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:56:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:56:36,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking...