/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 --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:11:44,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:11:44,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:11:44,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:11:44,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:11:44,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:11:44,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:11:44,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:11:44,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:11:44,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:11:44,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:11:44,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:11:44,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:11:44,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:11:44,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:11:44,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:11:44,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:11:44,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:11:44,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:11:44,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:11:44,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:11:44,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:11:44,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:11:44,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:11:44,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:11:44,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:11:44,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:11:44,674 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:11:44,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:11:44,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:11:44,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:11:44,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:11:44,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:11:44,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:11:44,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:11:44,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:11:44,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:11:44,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:11:44,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:11:44,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:11:44,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:11:44,685 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 [2020-09-21 12:11:44,713 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:11:44,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:11:44,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:11:44,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:11:44,715 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:11:44,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:11:44,716 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:11:44,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:11:44,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:11:44,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:11:44,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:11:44,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:11:44,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:11:44,717 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:11:44,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:11:44,717 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:11:44,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:11:44,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:11:44,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:11:44,718 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:11:44,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:11:44,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:11:44,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:11:44,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:11:44,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:11:44,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:11:44,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:11:44,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:11:44,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:11:44,720 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.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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:11:45,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:11:45,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:11:45,186 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:11:45,188 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:11:45,188 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:11:45,190 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c [2020-09-21 12:11:45,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/31d11c68e/a07f8c928db9479aa7f6b16711cf08d3/FLAG7da8e2c53 [2020-09-21 12:11:45,884 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:11:45,885 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c [2020-09-21 12:11:45,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/31d11c68e/a07f8c928db9479aa7f6b16711cf08d3/FLAG7da8e2c53 [2020-09-21 12:11:46,196 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/31d11c68e/a07f8c928db9479aa7f6b16711cf08d3 [2020-09-21 12:11:46,214 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:11:46,223 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:11:46,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:11:46,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:11:46,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:11:46,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:11:46" (1/1) ... [2020-09-21 12:11:46,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:46, skipping insertion in model container [2020-09-21 12:11:46,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:11:46" (1/1) ... [2020-09-21 12:11:46,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:11:46,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:11:46,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:11:46,806 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:11:47,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:11:47,048 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:11:47,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:47 WrapperNode [2020-09-21 12:11:47,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:11:47,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:11:47,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:11:47,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:11:47,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:47" (1/1) ... [2020-09-21 12:11:47,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:47" (1/1) ... [2020-09-21 12:11:47,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:47" (1/1) ... [2020-09-21 12:11:47,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:47" (1/1) ... [2020-09-21 12:11:47,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:47" (1/1) ... [2020-09-21 12:11:47,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:47" (1/1) ... [2020-09-21 12:11:47,137 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:47" (1/1) ... [2020-09-21 12:11:47,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:11:47,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:11:47,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:11:47,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:11:47,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:47" (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 [2020-09-21 12:11:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:11:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:11:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 12:11:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 12:11:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 12:11:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 12:11:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 12:11:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 12:11:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 12:11:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 12:11:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 12:11:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 12:11:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 12:11:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 12:11:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 12:11:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 12:11:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 12:11:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 12:11:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 12:11:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 12:11:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 12:11:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 12:11:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 12:11:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 12:11:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 12:11:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 12:11:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 12:11:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 12:11:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 12:11:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 12:11:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 12:11:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:11:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 12:11:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 12:11:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 12:11:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 12:11:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 12:11:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:11:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:11:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 12:11:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 12:11:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:11:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:11:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 12:11:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:11:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:11:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:11:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:11:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 12:11:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:11:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 12:11:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 12:11:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:11:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 12:11:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 12:11:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:11:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 12:11:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 12:11:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 12:11:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 12:11:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 12:11:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 12:11:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 12:11:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 12:11:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 12:11:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 12:11:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 12:11:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 12:11:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 12:11:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 12:11:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 12:11:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 12:11:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 12:11:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 12:11:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 12:11:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 12:11:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 12:11:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 12:11:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 12:11:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 12:11:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 12:11:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 12:11:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 12:11:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:11:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 12:11:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:11:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:11:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:11:48,434 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:11:48,434 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 12:11:48,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:11:48 BoogieIcfgContainer [2020-09-21 12:11:48,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:11:48,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:11:48,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:11:48,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:11:48,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:11:46" (1/3) ... [2020-09-21 12:11:48,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd92c59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:11:48, skipping insertion in model container [2020-09-21 12:11:48,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:47" (2/3) ... [2020-09-21 12:11:48,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd92c59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:11:48, skipping insertion in model container [2020-09-21 12:11:48,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:11:48" (3/3) ... [2020-09-21 12:11:48,451 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product17.cil.c [2020-09-21 12:11:48,463 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:11:48,474 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:11:48,498 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:11:48,528 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:11:48,528 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:11:48,528 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:11:48,528 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:11:48,529 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:11:48,529 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:11:48,529 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:11:48,529 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:11:48,556 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2020-09-21 12:11:48,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 12:11:48,569 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:11:48,570 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] [2020-09-21 12:11:48,571 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:11:48,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:11:48,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1926070200, now seen corresponding path program 1 times [2020-09-21 12:11:48,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:11:48,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [749675851] [2020-09-21 12:11:48,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:11:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:49,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:49,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:49,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:50,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:50,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 12:11:50,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:11:50,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1352 [2020-09-21 12:11:50,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:50,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:50,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 12:11:50,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:50,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 12:11:50,691 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:11:50,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:11:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:50,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:50,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:50,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:50,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:50,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-21 12:11:50,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:50,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:50,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:50,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:50,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:11:50,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:11:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:50,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:50,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:50,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:50,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:50,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:11:50,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:50,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:50,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:50,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:50,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:50,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:11:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:50,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:50,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:50,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:50,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:50,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:11:50,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:50,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:50,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:50,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:50,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:50,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:11:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:50,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:50,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:50,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:50,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:50,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:11:50,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:50,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:50,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:50,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:50,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:50,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:11:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:50,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:50,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:50,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:50,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:50,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:50,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:50,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:50,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:50,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:50,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:50,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:11:50,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:50,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:50,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:50,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:50,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:50,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:50,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:50,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:50,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:50,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:50,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:50,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:11:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:50,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:50,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:50,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:50,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:50,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:50,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:50,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:50,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:50,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:50,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:50,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:11:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:50,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:50,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:50,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:50,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:50,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:50,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:50,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:50,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:50,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:50,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:50,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:11:50,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [749675851] [2020-09-21 12:11:50,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:11:50,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:11:50,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048497525] [2020-09-21 12:11:50,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:11:50,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:11:50,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:11:50,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:11:50,962 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 3 states. [2020-09-21 12:11:51,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:11:51,991 INFO L93 Difference]: Finished difference Result 259 states and 341 transitions. [2020-09-21 12:11:51,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:11:51,993 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 12:11:51,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:11:52,011 INFO L225 Difference]: With dead ends: 259 [2020-09-21 12:11:52,011 INFO L226 Difference]: Without dead ends: 140 [2020-09-21 12:11:52,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:11:52,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-09-21 12:11:52,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 110. [2020-09-21 12:11:52,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-09-21 12:11:52,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 128 transitions. [2020-09-21 12:11:52,112 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 128 transitions. Word has length 52 [2020-09-21 12:11:52,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:11:52,113 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 128 transitions. [2020-09-21 12:11:52,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:11:52,113 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 128 transitions. [2020-09-21 12:11:52,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 12:11:52,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:11:52,117 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] [2020-09-21 12:11:52,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:11:52,118 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:11:52,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:11:52,119 INFO L82 PathProgramCache]: Analyzing trace with hash 475112747, now seen corresponding path program 1 times [2020-09-21 12:11:52,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:11:52,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602972329] [2020-09-21 12:11:52,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:11:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:52,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:52,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:52,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:53,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:53,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 12:11:53,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:11:53,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1060 [2020-09-21 12:11:53,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 12:11:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:11:53,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:53,526 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:11:53,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:11:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:53,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:53,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:53,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:53,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:53,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-21 12:11:53,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:53,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:53,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:53,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:53,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:53,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:11:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:53,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:53,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:53,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:53,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:53,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:53,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:53,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:53,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:53,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:53,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:53,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:11:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:53,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:53,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:53,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:53,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:53,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:53,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:53,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:53,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:53,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:53,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:53,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:11:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:53,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:53,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:53,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:53,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:53,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:53,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:53,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:53,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:53,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:53,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:53,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:11:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:53,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:53,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:53,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:53,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:53,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:53,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:53,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:53,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:53,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:53,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:53,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 12:11:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:53,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:53,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:53,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:53,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:53,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:53,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:53,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:53,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:53,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:53,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:53,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 12:11:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:53,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:53,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:53,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:53,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:53,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:53,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:53,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:53,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:53,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:53,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:53,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 12:11:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:53,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:53,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:53,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:53,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:53,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:53,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:53,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:53,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:53,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:53,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:53,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:11:53,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602972329] [2020-09-21 12:11:53,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:11:53,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:11:53,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202568846] [2020-09-21 12:11:53,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:11:53,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:11:53,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:11:53,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:11:53,686 INFO L87 Difference]: Start difference. First operand 110 states and 128 transitions. Second operand 4 states. [2020-09-21 12:11:54,166 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:11:54,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:11:54,779 INFO L93 Difference]: Finished difference Result 192 states and 232 transitions. [2020-09-21 12:11:54,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:11:54,780 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 12:11:54,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:11:54,783 INFO L225 Difference]: With dead ends: 192 [2020-09-21 12:11:54,783 INFO L226 Difference]: Without dead ends: 124 [2020-09-21 12:11:54,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:11:54,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-21 12:11:54,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 101. [2020-09-21 12:11:54,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-21 12:11:54,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 116 transitions. [2020-09-21 12:11:54,819 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 116 transitions. Word has length 53 [2020-09-21 12:11:54,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:11:54,820 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 116 transitions. [2020-09-21 12:11:54,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:11:54,820 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-09-21 12:11:54,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 12:11:54,822 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:11:54,822 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] [2020-09-21 12:11:54,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:11:54,823 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:11:54,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:11:54,823 INFO L82 PathProgramCache]: Analyzing trace with hash 40226853, now seen corresponding path program 1 times [2020-09-21 12:11:54,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:11:54,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267238209] [2020-09-21 12:11:54,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:11:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:54,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:55,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:55,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:55,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 12:11:55,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:11:55,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1026 [2020-09-21 12:11:55,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:55,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:55,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:55,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 12:11:55,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:56,199 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:11:56,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:11:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:56,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:56,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:56,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:56,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:56,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-21 12:11:56,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:56,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:56,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:56,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:11:56,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:56,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:11:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:56,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:56,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:56,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:56,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:56,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:56,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:56,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:56,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:56,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:11:56,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:56,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:11:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:56,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:56,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:56,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:56,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:56,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:56,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:56,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:56,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:56,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:11:56,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:56,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:11:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:56,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:56,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:56,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:56,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:56,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:11:56,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:56,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:56,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:56,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:56,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:56,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:11:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:56,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:56,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:56,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:56,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:56,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:56,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:56,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:56,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:56,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:11:56,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:56,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:11:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:56,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:56,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:56,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:56,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:56,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:56,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:56,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:56,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:56,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:56,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:56,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 12:11:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:56,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:56,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:56,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:56,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:56,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:56,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:56,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:56,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:56,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:56,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:56,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 12:11:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:56,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:56,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:56,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:56,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:56,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:56,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:56,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:56,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:56,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:56,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:56,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:11:56,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267238209] [2020-09-21 12:11:56,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:11:56,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:11:56,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923625804] [2020-09-21 12:11:56,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:11:56,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:11:56,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:11:56,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:11:56,450 INFO L87 Difference]: Start difference. First operand 101 states and 116 transitions. Second operand 4 states. [2020-09-21 12:11:56,798 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:11:57,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:11:57,398 INFO L93 Difference]: Finished difference Result 201 states and 246 transitions. [2020-09-21 12:11:57,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:11:57,398 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-09-21 12:11:57,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:11:57,400 INFO L225 Difference]: With dead ends: 201 [2020-09-21 12:11:57,401 INFO L226 Difference]: Without dead ends: 124 [2020-09-21 12:11:57,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:11:57,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-21 12:11:57,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 101. [2020-09-21 12:11:57,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-21 12:11:57,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2020-09-21 12:11:57,438 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 57 [2020-09-21 12:11:57,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:11:57,438 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2020-09-21 12:11:57,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:11:57,438 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2020-09-21 12:11:57,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-21 12:11:57,440 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:11:57,440 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] [2020-09-21 12:11:57,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:11:57,441 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:11:57,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:11:57,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1164680110, now seen corresponding path program 1 times [2020-09-21 12:11:57,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:11:57,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711197437] [2020-09-21 12:11:57,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:11:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:57,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:58,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:58,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 12:11:58,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:58,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1028 [2020-09-21 12:11:58,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:58,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 12:11:58,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:58,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-21 12:11:58,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:58,851 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:11:58,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:11:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:58,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:58,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:58,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:58,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:58,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-21 12:11:58,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:58,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:58,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:58,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:11:58,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:58,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:11:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:58,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:58,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:58,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:58,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:58,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:58,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:58,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:58,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:58,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:11:58,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:58,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:11:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:58,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:58,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:58,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:58,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:58,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:58,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:58,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:58,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:58,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:11:58,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:58,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:11:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:58,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:58,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:58,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:58,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:59,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:11:59,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:59,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:59,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:59,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:59,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:59,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:11:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:59,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:59,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:59,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:59,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:59,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:59,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:59,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:59,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:59,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:11:59,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:59,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 12:11:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:59,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:59,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:59,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:11:59,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:59,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:59,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:59,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:59,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:59,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:11:59,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:59,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:59,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:59,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:59,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:59,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:59,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:59,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:59,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:59,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:59,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:59,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:59,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 12:11:59,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:59,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:59,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:59,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:59,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:59,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:59,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:59,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:59,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:59,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:59,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:59,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 12:11:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:59,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:59,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:59,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:59,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:59,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:11:59,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:59,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:11:59,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:59,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:59,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:59,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 12:11:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:59,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:59,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:59,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:59,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:59,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:59,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:59,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:59,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:59,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:59,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:59,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:11:59,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1711197437] [2020-09-21 12:11:59,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:11:59,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:11:59,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303439103] [2020-09-21 12:11:59,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:11:59,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:11:59,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:11:59,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:11:59,084 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand 8 states. [2020-09-21 12:11:59,508 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:12:00,846 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 12:12:01,279 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:12:01,610 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:12:01,929 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:12:02,375 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:12:02,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:12:02,924 INFO L93 Difference]: Finished difference Result 301 states and 394 transitions. [2020-09-21 12:12:02,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 12:12:02,925 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-09-21 12:12:02,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:12:02,929 INFO L225 Difference]: With dead ends: 301 [2020-09-21 12:12:02,929 INFO L226 Difference]: Without dead ends: 224 [2020-09-21 12:12:02,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-09-21 12:12:02,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-09-21 12:12:02,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 176. [2020-09-21 12:12:02,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-09-21 12:12:02,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 207 transitions. [2020-09-21 12:12:02,980 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 207 transitions. Word has length 65 [2020-09-21 12:12:02,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:12:02,980 INFO L479 AbstractCegarLoop]: Abstraction has 176 states and 207 transitions. [2020-09-21 12:12:02,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:12:02,981 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 207 transitions. [2020-09-21 12:12:02,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-21 12:12:02,983 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:12:02,983 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] [2020-09-21 12:12:02,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:12:02,984 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:12:02,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:12:02,984 INFO L82 PathProgramCache]: Analyzing trace with hash 558485620, now seen corresponding path program 1 times [2020-09-21 12:12:02,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:12:02,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983175537] [2020-09-21 12:12:02,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:12:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 12:12:03,044 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 12:12:03,044 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 12:12:03,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:12:03,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:12:03 BoogieIcfgContainer [2020-09-21 12:12:03,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:12:03,078 INFO L168 Benchmark]: Toolchain (without parser) took 16861.55 ms. Allocated memory was 147.3 MB in the beginning and 481.8 MB in the end (delta: 334.5 MB). Free memory was 103.0 MB in the beginning and 356.5 MB in the end (delta: -253.6 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. [2020-09-21 12:12:03,079 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 12:12:03,080 INFO L168 Benchmark]: CACSL2BoogieTranslator took 819.72 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 102.3 MB in the beginning and 174.4 MB in the end (delta: -72.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-09-21 12:12:03,081 INFO L168 Benchmark]: Boogie Preprocessor took 96.40 ms. Allocated memory is still 203.9 MB. Free memory was 174.4 MB in the beginning and 170.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-21 12:12:03,082 INFO L168 Benchmark]: RCFGBuilder took 1294.42 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 170.3 MB in the beginning and 201.9 MB in the end (delta: -31.6 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. [2020-09-21 12:12:03,082 INFO L168 Benchmark]: TraceAbstraction took 14633.51 ms. Allocated memory was 237.0 MB in the beginning and 481.8 MB in the end (delta: 244.8 MB). Free memory was 200.4 MB in the beginning and 356.5 MB in the end (delta: -156.1 MB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB. [2020-09-21 12:12:03,086 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 819.72 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 102.3 MB in the beginning and 174.4 MB in the end (delta: -72.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.40 ms. Allocated memory is still 203.9 MB. Free memory was 174.4 MB in the beginning and 170.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1294.42 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 170.3 MB in the beginning and 201.9 MB in the end (delta: -31.6 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14633.51 ms. Allocated memory was 237.0 MB in the beginning and 481.8 MB in the end (delta: 244.8 MB). Free memory was 200.4 MB in the beginning and 356.5 MB in the end (delta: -156.1 MB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 506]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L582] int pumpRunning = 0; [L583] int systemActive = 1; [L735] int cleanupTimeShifts = 4; [L811] int retValue_acc ; [L812] int tmp ; [L816] FCALL select_helpers() [L817] FCALL select_features() [L818] CALL, EXPR valid_product() [L860] int retValue_acc ; [L863] retValue_acc = 1 [L864] return (retValue_acc); [L818] RET, EXPR valid_product() [L818] tmp = valid_product() [L820] COND TRUE \read(tmp) [L822] FCALL setup() [L823] CALL runTest() [L802] CALL test() [L514] int splverifierCounter ; [L515] int tmp ; [L516] int tmp___0 ; [L517] int tmp___1 ; [L518] int tmp___2 ; [L521] splverifierCounter = 0 [L523] COND TRUE 1 [L525] COND TRUE splverifierCounter < 4 [L531] tmp = __VERIFIER_nondet_int() [L533] COND TRUE \read(tmp) [L535] CALL waterRise() [L431] COND TRUE waterLevel < 2 [L432] waterLevel = waterLevel + 1 [L535] RET waterRise() [L541] tmp___0 = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp___0)) [L551] tmp___2 = __VERIFIER_nondet_int() [L553] COND TRUE \read(tmp___2) [L566] CALL timeShift() [L590] COND FALSE !(\read(pumpRunning)) [L597] COND TRUE \read(systemActive) [L599] CALL processEnvironment() [L619] int tmp ; [L622] COND FALSE !(\read(pumpRunning)) [L637] FCALL processEnvironment__wrappee__base() [L599] RET processEnvironment() [L605] CALL __utac_acc__Specification3_spec__1() [L870] int tmp ; [L871] int tmp___0 ; [L872] int tmp___1 ; [L876] CALL, EXPR isMethaneLevelCritical() [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); [L876] RET, EXPR isMethaneLevelCritical() [L876] tmp = isMethaneLevelCritical() [L878] COND FALSE !(\read(tmp)) [L882] CALL, EXPR getWaterLevel() [L484] int retValue_acc ; [L487] retValue_acc = waterLevel [L488] return (retValue_acc); [L882] RET, EXPR getWaterLevel() [L882] tmp___0 = getWaterLevel() [L884] COND TRUE tmp___0 == 2 [L886] CALL, EXPR isPumpRunning() [L671] int retValue_acc ; [L674] retValue_acc = pumpRunning [L675] return (retValue_acc); [L886] RET, EXPR isPumpRunning() [L886] tmp___1 = isPumpRunning() [L888] COND FALSE !(\read(tmp___1)) [L892] CALL __automaton_fail() [L506] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 217 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 385 SDtfs, 480 SDslu, 193 SDs, 0 SdLazy, 931 SolverSat, 263 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=176occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 124 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 296 NumberOfCodeBlocks, 296 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 61170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...