/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:06:38,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:06:38,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:06:38,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:06:38,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:06:38,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:06:38,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:06:38,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:06:38,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:06:38,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:06:38,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:06:38,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:06:38,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:06:38,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:06:38,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:06:38,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:06:38,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:06:38,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:06:38,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:06:38,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:06:38,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:06:38,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:06:38,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:06:38,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:06:38,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:06:38,225 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:06:38,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:06:38,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:06:38,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:06:38,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:06:38,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:06:38,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:06:38,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:06:38,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:06:38,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:06:38,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:06:38,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:06:38,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:06:38,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:06:38,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:06:38,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:06:38,237 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 12:06:38,265 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:06:38,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:06:38,266 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:06:38,267 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:06:38,267 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:06:38,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:06:38,267 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:06:38,268 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:06:38,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:06:38,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:06:38,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:06:38,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:06:38,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:06:38,269 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:06:38,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:06:38,269 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:06:38,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:06:38,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:06:38,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:06:38,270 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:06:38,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:06:38,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:06:38,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:06:38,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:06:38,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:06:38,271 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:06:38,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:06:38,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:06:38,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:06:38,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:06:38,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:06:38,736 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:06:38,740 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:06:38,742 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:06:38,743 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:06:38,744 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product31.cil.c [2020-09-25 12:06:38,838 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8379245d5/7e8c051d3a074e2c9bee4435c44b2519/FLAG75b53bac8 [2020-09-25 12:06:39,453 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:06:39,453 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product31.cil.c [2020-09-25 12:06:39,472 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8379245d5/7e8c051d3a074e2c9bee4435c44b2519/FLAG75b53bac8 [2020-09-25 12:06:39,741 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8379245d5/7e8c051d3a074e2c9bee4435c44b2519 [2020-09-25 12:06:39,755 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:06:39,760 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:06:39,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:06:39,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:06:39,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:06:39,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:06:39" (1/1) ... [2020-09-25 12:06:39,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e6ef35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:39, skipping insertion in model container [2020-09-25 12:06:39,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:06:39" (1/1) ... [2020-09-25 12:06:39,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:06:39,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:06:40,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:06:40,388 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:06:40,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:06:40,514 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:06:40,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40 WrapperNode [2020-09-25 12:06:40,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:06:40,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:06:40,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:06:40,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:06:40,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40" (1/1) ... [2020-09-25 12:06:40,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40" (1/1) ... [2020-09-25 12:06:40,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40" (1/1) ... [2020-09-25 12:06:40,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40" (1/1) ... [2020-09-25 12:06:40,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40" (1/1) ... [2020-09-25 12:06:40,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40" (1/1) ... [2020-09-25 12:06:40,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40" (1/1) ... [2020-09-25 12:06:40,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:06:40,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:06:40,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:06:40,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:06:40,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:06:40,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:06:40,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:06:40,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 12:06:40,695 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 12:06:40,695 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 12:06:40,695 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 12:06:40,695 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 12:06:40,695 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:06:40,696 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 12:06:40,696 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 12:06:40,696 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 12:06:40,696 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 12:06:40,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 12:06:40,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 12:06:40,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 12:06:40,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 12:06:40,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 12:06:40,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 12:06:40,698 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 12:06:40,698 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 12:06:40,698 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 12:06:40,698 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 12:06:40,698 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 12:06:40,699 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 12:06:40,699 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 12:06:40,699 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 12:06:40,699 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 12:06:40,699 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 12:06:40,699 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 12:06:40,700 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 12:06:40,700 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 12:06:40,700 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 12:06:40,700 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 12:06:40,700 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 12:06:40,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 12:06:40,701 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 12:06:40,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 12:06:40,701 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 12:06:40,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 12:06:40,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 12:06:40,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:06:40,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:06:40,702 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:06:40,702 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 12:06:40,702 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 12:06:40,702 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 12:06:40,703 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 12:06:40,703 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 12:06:40,703 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 12:06:40,703 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 12:06:40,703 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 12:06:40,703 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 12:06:40,704 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 12:06:40,704 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 12:06:40,704 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 12:06:40,704 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:06:40,704 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 12:06:40,704 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 12:06:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:06:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:06:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 12:06:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:06:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:06:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:06:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:06:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 12:06:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:06:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 12:06:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 12:06:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:06:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 12:06:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 12:06:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:06:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 12:06:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 12:06:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 12:06:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 12:06:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 12:06:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 12:06:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 12:06:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 12:06:40,709 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 12:06:40,709 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 12:06:40,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 12:06:40,709 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 12:06:40,709 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 12:06:40,709 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 12:06:40,710 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 12:06:40,710 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 12:06:40,710 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 12:06:40,710 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 12:06:40,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:06:40,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 12:06:40,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:06:41,968 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:06:41,969 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 12:06:41,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:06:41 BoogieIcfgContainer [2020-09-25 12:06:41,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:06:41,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:06:41,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:06:41,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:06:41,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:06:39" (1/3) ... [2020-09-25 12:06:41,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265ac635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:06:41, skipping insertion in model container [2020-09-25 12:06:41,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40" (2/3) ... [2020-09-25 12:06:41,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265ac635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:06:41, skipping insertion in model container [2020-09-25 12:06:41,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:06:41" (3/3) ... [2020-09-25 12:06:41,988 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product31.cil.c [2020-09-25 12:06:42,002 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:06:42,016 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:06:42,043 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:06:42,078 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:06:42,078 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:06:42,079 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:06:42,079 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:06:42,079 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:06:42,079 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:06:42,079 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:06:42,079 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:06:42,110 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-25 12:06:42,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 12:06:42,128 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:06:42,130 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:06:42,130 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:06:42,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:06:42,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1955502520, now seen corresponding path program 1 times [2020-09-25 12:06:42,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:06:42,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1974587532] [2020-09-25 12:06:42,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:06:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:42,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:42,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:44,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:45,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:47,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:47,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 12:06:47,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:06:47,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 12:06:47,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:47,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:47,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:06:47,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 12:06:47,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 12:06:47,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 12:06:48,173 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:06:48,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:06:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:48,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:48,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:48,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:06:48,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:48,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-09-25 12:06:48,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:48,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:48,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:48,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:48,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 12:06:48,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:48,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:06:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:48,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:48,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:48,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:48,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:48,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:06:48,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:48,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:48,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:48,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:48,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:48,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:48,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:06:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:48,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:48,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:48,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:48,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:48,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:06:48,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:48,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:48,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:48,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:48,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:48,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:48,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:06:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:48,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:48,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:48,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:48,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:48,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:06:48,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:48,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:48,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:48,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:48,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:48,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:48,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:06:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:48,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:48,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:48,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:48,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:48,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:06:48,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:48,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:48,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:48,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:48,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:48,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 12:06:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:48,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:48,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:48,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:48,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:48,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:48,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:48,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:48,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:48,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:06:48,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:48,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:48,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 12:06:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:48,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:48,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:48,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:48,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:48,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:48,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:48,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:48,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:48,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:06:48,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:48,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:48,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:06:48,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1974587532] [2020-09-25 12:06:48,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:06:48,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 12:06:48,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128891490] [2020-09-25 12:06:48,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:06:48,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:06:48,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:06:48,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:06:48,695 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 5 states. [2020-09-25 12:06:49,364 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:06:50,240 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:06:52,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:06:52,678 INFO L93 Difference]: Finished difference Result 769 states and 959 transitions. [2020-09-25 12:06:52,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:06:52,681 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-09-25 12:06:52,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:06:52,720 INFO L225 Difference]: With dead ends: 769 [2020-09-25 12:06:52,720 INFO L226 Difference]: Without dead ends: 560 [2020-09-25 12:06:52,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:06:52,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-09-25 12:06:52,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 474. [2020-09-25 12:06:52,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2020-09-25 12:06:52,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 539 transitions. [2020-09-25 12:06:52,927 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 539 transitions. Word has length 142 [2020-09-25 12:06:52,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:06:52,928 INFO L479 AbstractCegarLoop]: Abstraction has 474 states and 539 transitions. [2020-09-25 12:06:52,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:06:52,929 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 539 transitions. [2020-09-25 12:06:52,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 12:06:52,935 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:06:52,935 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:06:52,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:06:52,936 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:06:52,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:06:52,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1361130743, now seen corresponding path program 1 times [2020-09-25 12:06:52,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:06:52,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635735021] [2020-09-25 12:06:52,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:06:53,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:53,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:54,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:54,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:54,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:56,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 12:06:58,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:06:58,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 12:06:58,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 12:06:58,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 12:06:58,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 12:06:58,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,371 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:06:58,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:06:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:58,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:06:58,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:58,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-25 12:06:58,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:58,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:58,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 12:06:58,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:06:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:58,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:58,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:58,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:06:58,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:58,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:58,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:58,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:06:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:58,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:58,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:58,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:58,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:58,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:58,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:58,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:06:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:58,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:58,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:58,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:06:58,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:58,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:58,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:58,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:06:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:58,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:58,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:58,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:06:58,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:58,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:58,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:58,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 12:06:58,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:58,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:06:58,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:58,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:06:58,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:58,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:58,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:06:58,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:06:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:58,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:06:58,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:58,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:58,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:58,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:58,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:58,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:06:58,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:06:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:58,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:58,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:58,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:58,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:58,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:58,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:58,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:06:58,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 12:06:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:58,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:58,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:58,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:06:58,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:06:58,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:58,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:58,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 12:06:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:58,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:58,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:58,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:58,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:58,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:06:58,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:58,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:06:58,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635735021] [2020-09-25 12:06:58,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:06:58,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 12:06:58,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347696217] [2020-09-25 12:06:58,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:06:58,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:06:58,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:06:58,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:06:58,943 INFO L87 Difference]: Start difference. First operand 474 states and 539 transitions. Second operand 10 states. [2020-09-25 12:06:59,449 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:07:01,152 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:01,489 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:01,932 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:02,269 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:07:02,592 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:07:02,904 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:03,224 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:03,755 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:05,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:07:05,372 INFO L93 Difference]: Finished difference Result 1429 states and 1848 transitions. [2020-09-25 12:07:05,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 12:07:05,373 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 165 [2020-09-25 12:07:05,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:07:05,382 INFO L225 Difference]: With dead ends: 1429 [2020-09-25 12:07:05,382 INFO L226 Difference]: Without dead ends: 1065 [2020-09-25 12:07:05,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 12:07:05,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2020-09-25 12:07:05,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 830. [2020-09-25 12:07:05,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2020-09-25 12:07:05,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 989 transitions. [2020-09-25 12:07:05,562 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 989 transitions. Word has length 165 [2020-09-25 12:07:05,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:07:05,563 INFO L479 AbstractCegarLoop]: Abstraction has 830 states and 989 transitions. [2020-09-25 12:07:05,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:07:05,563 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 989 transitions. [2020-09-25 12:07:05,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 12:07:05,573 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:07:05,573 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] [2020-09-25 12:07:05,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:07:05,574 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:07:05,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:07:05,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1279992228, now seen corresponding path program 1 times [2020-09-25 12:07:05,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:07:05,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874482851] [2020-09-25 12:07:05,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:07:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:05,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:05,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:05,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:10,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:10,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 12:07:10,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:07:10,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 12:07:10,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:10,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:10,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:07:10,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 12:07:10,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 12:07:10,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:07:10,989 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:07:10,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:07:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:07:11,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-25 12:07:11,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:11,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 12:07:11,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:07:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:11,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:07:11,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:11,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:07:11,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:07:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:11,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:07:11,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:11,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:07:11,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:07:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:07:11,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:07:11,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:11,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:07:11,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:07:11,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:07:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:11,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:07:11,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:11,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:07:11,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 12:07:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:07:11,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:07:11,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:07:11,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:07:11,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:07:11,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 12:07:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:07:11,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:07:11,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:07:11,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 12:07:11,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:07:11,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:07:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:07:11,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:07:11,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:07:11,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:07:11,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:07:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:11,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:07:11,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:07:11,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:07:11,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 12:07:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:07:11,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:07:11,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:07:11,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:07:11,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:07:11,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:07:11,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 12:07:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:07:11,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:07:11,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:07:11,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:07:11,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:07:11,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:07:11,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874482851] [2020-09-25 12:07:11,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:07:11,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 12:07:11,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120082034] [2020-09-25 12:07:11,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:07:11,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:07:11,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:07:11,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:07:11,471 INFO L87 Difference]: Start difference. First operand 830 states and 989 transitions. Second operand 6 states. [2020-09-25 12:07:12,158 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:07:13,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:07:13,082 INFO L93 Difference]: Finished difference Result 1140 states and 1424 transitions. [2020-09-25 12:07:13,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 12:07:13,083 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2020-09-25 12:07:13,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:07:13,084 INFO L225 Difference]: With dead ends: 1140 [2020-09-25 12:07:13,084 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 12:07:13,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:07:13,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 12:07:13,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 12:07:13,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 12:07:13,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 12:07:13,090 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 170 [2020-09-25 12:07:13,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:07:13,090 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 12:07:13,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:07:13,091 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 12:07:13,091 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 12:07:13,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:07:13,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 12:07:13,297 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:13,463 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:13,755 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:14,027 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:14,301 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 188 [2020-09-25 12:07:14,636 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 12:07:14,976 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 12:07:15,234 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 188 [2020-09-25 12:07:15,558 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 12:07:15,724 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:15,839 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 9 [2020-09-25 12:07:16,002 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:16,160 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:16,316 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:16,430 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 9 [2020-09-25 12:07:16,584 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:16,737 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:16,890 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:17,093 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 9 [2020-09-25 12:07:17,233 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:07:17,555 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 12:07:17,875 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 12:07:18,124 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 188 [2020-09-25 12:07:18,381 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:18,700 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 12:07:18,950 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 188 [2020-09-25 12:07:19,216 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:19,476 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:19,727 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 188 [2020-09-25 12:07:19,977 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 188 [2020-09-25 12:07:20,245 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:20,564 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 12:07:20,885 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 12:07:21,045 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:21,214 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:21,397 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:21,559 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:21,712 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:21,859 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:22,012 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:22,165 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:22,313 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:22,472 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:22,631 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:22,780 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:22,928 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:23,081 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:23,234 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:23,387 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:23,546 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:23,701 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:23,849 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:24,003 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:24,155 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:24,307 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:24,461 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:24,615 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:24,769 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:24,922 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:25,073 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:25,227 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:25,336 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 9 [2020-09-25 12:07:25,490 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:25,642 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:25,795 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:25,944 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:26,098 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:26,252 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:26,400 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:26,553 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:26,812 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:27,066 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:27,316 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 188 [2020-09-25 12:07:27,638 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 12:07:27,958 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 12:07:28,207 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 188 [2020-09-25 12:07:28,526 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 12:07:28,675 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:28,828 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:28,976 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:29,131 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:29,284 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:29,437 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:29,589 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:29,742 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:29,894 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:30,048 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:30,159 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 9 [2020-09-25 12:07:30,313 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:30,468 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:30,576 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 9 [2020-09-25 12:07:30,735 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:30,888 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:31,044 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:31,203 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:31,383 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:31,544 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:31,860 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:32,177 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:32,494 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 12:07:32,809 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 12:07:33,124 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189