/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_spec4_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:05:55,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:05:55,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:05:55,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:05:55,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:05:55,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:05:55,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:05:55,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:05:55,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:05:55,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:05:55,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:05:55,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:05:55,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:05:55,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:05:55,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:05:55,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:05:55,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:05:55,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:05:55,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:05:55,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:05:55,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:05:55,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:05:55,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:05:55,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:05:55,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:05:55,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:05:55,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:05:55,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:05:55,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:05:55,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:05:55,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:05:55,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:05:55,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:05:55,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:05:55,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:05:55,635 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:05:55,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:05:55,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:05:55,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:05:55,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:05:55,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:05:55,640 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 18:05:55,686 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:05:55,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:05:55,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:05:55,689 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:05:55,689 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:05:55,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:05:55,690 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:05:55,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:05:55,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:05:55,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:05:55,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:05:55,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:05:55,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:05:55,692 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:05:55,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:05:55,693 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:05:55,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:05:55,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:05:55,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:05:55,693 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:05:55,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:05:55,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:05:55,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:05:55,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:05:55,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:05:55,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:05:55,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:05:55,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:05:55,695 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:05:55,696 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 18:05:56,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:05:56,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:05:56,182 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:05:56,184 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:05:56,184 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:05:56,186 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2020-09-24 18:05:56,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7b132395/4839afa318fe417eb99c7abb94b2e27d/FLAG3ae4a58c9 [2020-09-24 18:05:56,906 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:05:56,907 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2020-09-24 18:05:56,924 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7b132395/4839afa318fe417eb99c7abb94b2e27d/FLAG3ae4a58c9 [2020-09-24 18:05:57,236 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7b132395/4839afa318fe417eb99c7abb94b2e27d [2020-09-24 18:05:57,249 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:05:57,255 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:05:57,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:05:57,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:05:57,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:05:57,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:05:57" (1/1) ... [2020-09-24 18:05:57,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4318d7ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:57, skipping insertion in model container [2020-09-24 18:05:57,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:05:57" (1/1) ... [2020-09-24 18:05:57,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:05:57,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:05:57,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:05:57,848 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:05:57,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:05:57,971 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:05:57,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:57 WrapperNode [2020-09-24 18:05:57,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:05:57,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:05:57,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:05:57,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:05:57,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:57" (1/1) ... [2020-09-24 18:05:57,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:57" (1/1) ... [2020-09-24 18:05:58,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:57" (1/1) ... [2020-09-24 18:05:58,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:57" (1/1) ... [2020-09-24 18:05:58,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:57" (1/1) ... [2020-09-24 18:05:58,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:57" (1/1) ... [2020-09-24 18:05:58,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:57" (1/1) ... [2020-09-24 18:05:58,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:05:58,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:05:58,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:05:58,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:05:58,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:57" (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 18:05:58,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:05:58,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:05:58,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:05:58,213 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:05:58,213 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:05:58,213 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:05:58,214 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:05:58,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 18:05:58,215 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:05:58,215 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:05:58,216 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:05:58,216 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:05:58,216 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:05:58,216 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 18:05:58,216 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:05:58,217 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:05:58,218 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:05:58,218 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:05:58,218 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:05:58,218 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:05:58,219 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 18:05:58,219 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:05:58,219 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:05:58,220 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:05:58,220 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:05:58,221 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:05:58,221 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:05:58,221 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:05:58,221 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:05:58,221 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:05:58,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:05:58,222 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:05:58,222 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:05:58,222 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:05:58,222 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 18:05:58,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:05:58,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:05:58,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:05:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:05:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:05:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:05:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:05:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:05:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:05:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:05:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:05:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:05:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:05:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:05:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:05:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:05:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:05:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 18:05:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:05:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:05:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:05:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:05:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:05:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:05:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:05:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:05:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:05:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:05:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 18:05:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:05:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:05:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:05:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:05:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:05:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:05:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:05:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 18:05:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 18:05:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:05:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:05:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:05:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:05:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:05:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:05:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:05:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:05:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:05:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:05:58,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:05:58,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:05:58,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:05:58,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:05:58,239 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:05:58,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:05:58,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:05:58,240 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:05:58,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:05:58,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:05:58,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:05:58,241 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:05:58,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:05:58,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:05:58,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:05:59,629 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:05:59,629 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:05:59,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:05:59 BoogieIcfgContainer [2020-09-24 18:05:59,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:05:59,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:05:59,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:05:59,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:05:59,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:05:57" (1/3) ... [2020-09-24 18:05:59,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e13e06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:05:59, skipping insertion in model container [2020-09-24 18:05:59,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:57" (2/3) ... [2020-09-24 18:05:59,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e13e06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:05:59, skipping insertion in model container [2020-09-24 18:05:59,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:05:59" (3/3) ... [2020-09-24 18:05:59,648 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2020-09-24 18:05:59,659 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:05:59,670 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:05:59,689 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:05:59,724 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:05:59,724 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:05:59,724 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:05:59,724 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:05:59,725 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:05:59,725 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:05:59,725 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:05:59,725 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:05:59,755 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states. [2020-09-24 18:05:59,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 18:05:59,775 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:05:59,777 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 18:05:59,777 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:05:59,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:05:59,786 INFO L82 PathProgramCache]: Analyzing trace with hash 344061342, now seen corresponding path program 1 times [2020-09-24 18:05:59,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:05:59,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060210413] [2020-09-24 18:05:59,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:00,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:00,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:02,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:03,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:05,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:05,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 18:06:05,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:06:05,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 18:06:05,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:05,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:05,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 18:06:05,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:05,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-24 18:06:05,657 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:06:05,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:05,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:05,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:05,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:06:05,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:05,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-24 18:06:05,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:05,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:05,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:05,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:05,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:05,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:06:05,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:05,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:05,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:05,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:05,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:05,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:05,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:05,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:05,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:05,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:05,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:05,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:06:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:05,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:05,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:05,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:05,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:05,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:05,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:05,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:05,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:05,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:05,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:05,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:06:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:05,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:05,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:05,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:05,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:05,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:06:05,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:05,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:05,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:05,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:05,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:05,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:06:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:05,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:05,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:05,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:05,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:05,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:05,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:05,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:05,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:05,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:05,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:05,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:06:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:05,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:05,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:05,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:05,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:05,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:05,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:05,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:05,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:05,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:05,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:05,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:06:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:05,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:05,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:05,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:05,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:05,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:05,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:05,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:05,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:05,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:05,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:05,957 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 18:06:05,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060210413] [2020-09-24 18:06:05,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:06:05,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:06:05,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585058620] [2020-09-24 18:06:05,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:06:05,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:06:05,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:06:05,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:06:05,999 INFO L87 Difference]: Start difference. First operand 340 states. Second operand 3 states. [2020-09-24 18:06:07,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:06:07,770 INFO L93 Difference]: Finished difference Result 549 states and 647 transitions. [2020-09-24 18:06:07,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:06:07,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 18:06:07,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:06:07,807 INFO L225 Difference]: With dead ends: 549 [2020-09-24 18:06:07,807 INFO L226 Difference]: Without dead ends: 334 [2020-09-24 18:06:07,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:06:07,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-09-24 18:06:08,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 289. [2020-09-24 18:06:08,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-09-24 18:06:08,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 314 transitions. [2020-09-24 18:06:08,019 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 314 transitions. Word has length 142 [2020-09-24 18:06:08,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:06:08,022 INFO L479 AbstractCegarLoop]: Abstraction has 289 states and 314 transitions. [2020-09-24 18:06:08,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:06:08,026 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 314 transitions. [2020-09-24 18:06:08,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 18:06:08,039 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:06:08,040 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 18:06:08,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:06:08,041 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:06:08,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:06:08,041 INFO L82 PathProgramCache]: Analyzing trace with hash 13635849, now seen corresponding path program 1 times [2020-09-24 18:06:08,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:06:08,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1875045448] [2020-09-24 18:06:08,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:08,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:08,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:09,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:10,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:12,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 18:06:13,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:06:13,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-09-24 18:06:13,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:06:13,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 18:06:13,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:06:13,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:13,477 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:06:13,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:13,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:13,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:06:13,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:13,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 18:06:13,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:13,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:13,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:13,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:13,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:06:13,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:13,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:13,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:13,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:13,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:13,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:13,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:13,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:13,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:06:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:13,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:13,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:13,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:13,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:13,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:13,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:13,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:13,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:06:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:13,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:13,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:13,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:13,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:13,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:13,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:13,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:13,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:06:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:13,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:13,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:13,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:13,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:13,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:13,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:13,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:13,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:06:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:13,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:13,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:13,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:13,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:13,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:13,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:13,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:13,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:06:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:13,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:13,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:13,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:13,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:13,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:13,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:13,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:13,692 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 18:06:13,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1875045448] [2020-09-24 18:06:13,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:06:13,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:06:13,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930429908] [2020-09-24 18:06:13,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:06:13,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:06:13,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:06:13,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:06:13,698 INFO L87 Difference]: Start difference. First operand 289 states and 314 transitions. Second operand 4 states. [2020-09-24 18:06:14,355 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:06:15,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:06:15,502 INFO L93 Difference]: Finished difference Result 460 states and 514 transitions. [2020-09-24 18:06:15,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:06:15,503 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 18:06:15,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:06:15,511 INFO L225 Difference]: With dead ends: 460 [2020-09-24 18:06:15,512 INFO L226 Difference]: Without dead ends: 317 [2020-09-24 18:06:15,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:06:15,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-09-24 18:06:15,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 279. [2020-09-24 18:06:15,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-09-24 18:06:15,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 301 transitions. [2020-09-24 18:06:15,587 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 301 transitions. Word has length 143 [2020-09-24 18:06:15,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:06:15,591 INFO L479 AbstractCegarLoop]: Abstraction has 279 states and 301 transitions. [2020-09-24 18:06:15,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:06:15,592 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 301 transitions. [2020-09-24 18:06:15,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-24 18:06:15,593 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:06:15,594 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 18:06:15,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:06:15,596 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:06:15,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:06:15,597 INFO L82 PathProgramCache]: Analyzing trace with hash -431235613, now seen corresponding path program 1 times [2020-09-24 18:06:15,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:06:15,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106483972] [2020-09-24 18:06:15,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:15,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:16,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:17,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:17,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:20,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:20,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 18:06:20,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:06:20,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-24 18:06:20,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:20,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:06:20,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 18:06:20,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 18:06:20,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:20,967 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:06:20,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:20,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:06:21,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 18:06:21,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:06:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:21,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:21,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:06:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:21,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:21,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:21,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:06:21,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:21,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:06:21,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:06:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:21,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:21,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:21,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:06:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:21,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:06:21,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:06:21,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:06:21,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:21,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 18:06:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:21,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 18:06:21,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:06:21,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:06:21,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,250 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 18:06:21,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106483972] [2020-09-24 18:06:21,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:06:21,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:06:21,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625041370] [2020-09-24 18:06:21,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:06:21,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:06:21,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:06:21,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:06:21,255 INFO L87 Difference]: Start difference. First operand 279 states and 301 transitions. Second operand 8 states. [2020-09-24 18:06:21,748 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:06:22,871 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:06:23,240 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:06:23,568 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:06:23,908 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:06:24,212 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:06:25,036 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:06:25,365 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:06:25,724 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:06:26,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:06:26,667 INFO L93 Difference]: Finished difference Result 569 states and 659 transitions. [2020-09-24 18:06:26,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 18:06:26,668 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2020-09-24 18:06:26,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:06:26,673 INFO L225 Difference]: With dead ends: 569 [2020-09-24 18:06:26,673 INFO L226 Difference]: Without dead ends: 400 [2020-09-24 18:06:26,674 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 18:06:26,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-09-24 18:06:26,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 369. [2020-09-24 18:06:26,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-09-24 18:06:26,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 411 transitions. [2020-09-24 18:06:26,729 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 411 transitions. Word has length 152 [2020-09-24 18:06:26,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:06:26,730 INFO L479 AbstractCegarLoop]: Abstraction has 369 states and 411 transitions. [2020-09-24 18:06:26,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:06:26,731 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 411 transitions. [2020-09-24 18:06:26,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 18:06:26,734 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:06:26,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:06:26,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:06:26,734 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:06:26,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:06:26,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1938966038, now seen corresponding path program 1 times [2020-09-24 18:06:26,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:06:26,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1367339326] [2020-09-24 18:06:26,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:26,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:27,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:31,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:31,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 18:06:31,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:06:31,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-24 18:06:31,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:31,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:06:31,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-24 18:06:31,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:06:31,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:32,088 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:06:32,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:32,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:32,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:32,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:06:32,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:32,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 18:06:32,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:32,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:32,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:32,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:32,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:32,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:06:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:32,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:32,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:32,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:32,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:32,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:32,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:32,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:32,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:32,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:32,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:32,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:06:32,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:32,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:32,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:32,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:32,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:32,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:32,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:32,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:32,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:32,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:32,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:32,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:06:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:32,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:32,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:32,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:32,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:32,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:06:32,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:32,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:32,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:32,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:32,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:32,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:06:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:32,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:32,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:32,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:32,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:32,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:32,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:32,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:32,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:32,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:32,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:32,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 18:06:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:32,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:32,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:32,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 18:06:32,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:32,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 18:06:32,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:06:32,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 18:06:32,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:06:32,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:32,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:06:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:32,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:32,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:32,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 18:06:32,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:32,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 18:06:32,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:32,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:06:32,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 18:06:32,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:06:32,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:32,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:06:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:32,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:32,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:32,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:06:32,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:32,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 18:06:32,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:32,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:06:32,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:32,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 18:06:32,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:32,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:06:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:32,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:32,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:32,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:06:32,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:32,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:06:32,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:32,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:32,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:32,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:32,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:32,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:06:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:32,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:32,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:32,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 18:06:32,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:32,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 18:06:32,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:32,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 18:06:32,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:32,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:32,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:06:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:32,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:32,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:32,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 18:06:32,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:32,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:06:32,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:32,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:32,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:32,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:32,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:32,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:06:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:32,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:32,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:32,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:32,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:32,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:32,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:32,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:32,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:32,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:32,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:32,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 18:06:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:32,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:32,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:32,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:06:32,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:32,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:32,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:32,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:32,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:32,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:32,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:32,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 18:06:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:32,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:32,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:32,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:32,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:32,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:32,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:32,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:32,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:32,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:32,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:32,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 18:06:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:32,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:32,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:32,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:32,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:32,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:32,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:32,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:32,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:32,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:32,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:32,799 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 18:06:32,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1367339326] [2020-09-24 18:06:32,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:06:32,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:06:32,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716128724] [2020-09-24 18:06:32,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:06:32,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:06:32,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:06:32,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:06:32,803 INFO L87 Difference]: Start difference. First operand 369 states and 411 transitions. Second operand 9 states. [2020-09-24 18:06:34,439 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:06:34,766 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:06:35,086 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:06:35,396 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:06:35,755 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:06:36,055 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:06:37,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:06:37,192 INFO L93 Difference]: Finished difference Result 695 states and 822 transitions. [2020-09-24 18:06:37,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 18:06:37,193 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 212 [2020-09-24 18:06:37,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:06:37,198 INFO L225 Difference]: With dead ends: 695 [2020-09-24 18:06:37,198 INFO L226 Difference]: Without dead ends: 436 [2020-09-24 18:06:37,200 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 18:06:37,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2020-09-24 18:06:37,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 380. [2020-09-24 18:06:37,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-09-24 18:06:37,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 422 transitions. [2020-09-24 18:06:37,245 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 422 transitions. Word has length 212 [2020-09-24 18:06:37,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:06:37,246 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 422 transitions. [2020-09-24 18:06:37,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:06:37,246 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 422 transitions. [2020-09-24 18:06:37,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 18:06:37,249 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:06:37,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:06:37,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:06:37,250 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:06:37,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:06:37,250 INFO L82 PathProgramCache]: Analyzing trace with hash -671893066, now seen corresponding path program 1 times [2020-09-24 18:06:37,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:06:37,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1931663423] [2020-09-24 18:06:37,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:37,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:37,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:42,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:42,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 18:06:42,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:06:42,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-24 18:06:42,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:42,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:06:42,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-24 18:06:42,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:06:42,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:42,631 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:06:42,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:42,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:42,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:42,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:06:42,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:42,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 18:06:42,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:42,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:42,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:42,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:42,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:42,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:06:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:42,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:42,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:42,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:42,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:42,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:42,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:42,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:42,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:42,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:42,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:42,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:06:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:42,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:42,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:42,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:42,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:42,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:42,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:42,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:42,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:42,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:42,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:42,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:06:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:42,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:42,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:42,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:42,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:42,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:06:42,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:42,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:42,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:42,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:42,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:42,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:06:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:42,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:42,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:42,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:42,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:42,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:42,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:42,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:42,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:42,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:42,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 18:06:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:42,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:42,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:42,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 18:06:42,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:42,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 18:06:42,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:42,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:06:42,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 18:06:42,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:06:42,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:42,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:06:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:42,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:43,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:43,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 18:06:43,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:43,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 18:06:43,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:43,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:06:43,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:06:43,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:06:43,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:43,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:06:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:43,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:43,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:43,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:06:43,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:43,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 18:06:43,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:43,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:06:43,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 18:06:43,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:06:43,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0