/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 16:55:02,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 16:55:02,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 16:55:02,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 16:55:02,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 16:55:02,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 16:55:02,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 16:55:02,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 16:55:02,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 16:55:02,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 16:55:02,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 16:55:02,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 16:55:02,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 16:55:02,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 16:55:02,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 16:55:02,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 16:55:02,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 16:55:02,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 16:55:02,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 16:55:02,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 16:55:02,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 16:55:02,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 16:55:02,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 16:55:02,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 16:55:02,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 16:55:02,280 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 16:55:02,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 16:55:02,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 16:55:02,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 16:55:02,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 16:55:02,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 16:55:02,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 16:55:02,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 16:55:02,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 16:55:02,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 16:55:02,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 16:55:02,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 16:55:02,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 16:55:02,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 16:55:02,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 16:55:02,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 16:55:02,316 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 [2020-10-28 16:55:02,361 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 16:55:02,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 16:55:02,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 16:55:02,364 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 16:55:02,364 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 16:55:02,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 16:55:02,364 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 16:55:02,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 16:55:02,365 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 16:55:02,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 16:55:02,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 16:55:02,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 16:55:02,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 16:55:02,366 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 16:55:02,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 16:55:02,366 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 16:55:02,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 16:55:02,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 16:55:02,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 16:55:02,367 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 16:55:02,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 16:55:02,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 16:55:02,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 16:55:02,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 16:55:02,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 16:55:02,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 16:55:02,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 16:55:02,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 16:55:02,370 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 16:55:02,370 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 16:55:02,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 16:55:02,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 16:55:02,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 16:55:02,827 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 16:55:02,828 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 16:55:02,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-10-28 16:55:02,918 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f2c4ba5f9/71fcad25c7d74e3687a862c48a3e2f8f/FLAG6d691941a [2020-10-28 16:55:03,590 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 16:55:03,593 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-10-28 16:55:03,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f2c4ba5f9/71fcad25c7d74e3687a862c48a3e2f8f/FLAG6d691941a [2020-10-28 16:55:03,912 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f2c4ba5f9/71fcad25c7d74e3687a862c48a3e2f8f [2020-10-28 16:55:03,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 16:55:03,922 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 16:55:03,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 16:55:03,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 16:55:03,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 16:55:03,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:55:03" (1/1) ... [2020-10-28 16:55:03,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4caf83ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:55:03, skipping insertion in model container [2020-10-28 16:55:03,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:55:03" (1/1) ... [2020-10-28 16:55:03,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 16:55:03,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 16:55:04,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:55:04,363 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 16:55:04,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:55:04,588 INFO L208 MainTranslator]: Completed translation [2020-10-28 16:55:04,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:55:04 WrapperNode [2020-10-28 16:55:04,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 16:55:04,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 16:55:04,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 16:55:04,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 16:55:04,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:55:04" (1/1) ... [2020-10-28 16:55:04,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:55:04" (1/1) ... [2020-10-28 16:55:04,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:55:04" (1/1) ... [2020-10-28 16:55:04,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:55:04" (1/1) ... [2020-10-28 16:55:04,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:55:04" (1/1) ... [2020-10-28 16:55:04,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:55:04" (1/1) ... [2020-10-28 16:55:04,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:55:04" (1/1) ... [2020-10-28 16:55:04,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 16:55:04,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 16:55:04,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 16:55:04,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 16:55:04,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:55:04" (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 [2020-10-28 16:55:04,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 16:55:04,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 16:55:04,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-28 16:55:04,805 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 16:55:04,805 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-28 16:55:04,806 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-28 16:55:04,806 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-28 16:55:04,806 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-28 16:55:04,806 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-28 16:55:04,807 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-28 16:55:04,807 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-28 16:55:04,808 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-28 16:55:04,808 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-28 16:55:04,808 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-28 16:55:04,808 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-28 16:55:04,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-28 16:55:04,809 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-28 16:55:04,809 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-28 16:55:04,810 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-28 16:55:04,810 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-28 16:55:04,810 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 16:55:04,810 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-28 16:55:04,810 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-28 16:55:04,810 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-28 16:55:04,810 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-28 16:55:04,811 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-28 16:55:04,811 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-28 16:55:04,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-28 16:55:04,811 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-28 16:55:04,811 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-28 16:55:04,811 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-28 16:55:04,811 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-28 16:55:04,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-28 16:55:04,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-28 16:55:04,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-28 16:55:04,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-28 16:55:04,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-28 16:55:04,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-28 16:55:04,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-28 16:55:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 16:55:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 16:55:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 16:55:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 16:55:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 16:55:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-28 16:55:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-28 16:55:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-28 16:55:04,814 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-28 16:55:04,814 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-28 16:55:04,814 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-28 16:55:04,814 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-28 16:55:04,814 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-28 16:55:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-28 16:55:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-28 16:55:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-28 16:55:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-28 16:55:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-28 16:55:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-28 16:55:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-28 16:55:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-28 16:55:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-28 16:55:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-28 16:55:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-28 16:55:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-28 16:55:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-28 16:55:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-28 16:55:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-28 16:55:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-28 16:55:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-28 16:55:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-28 16:55:04,818 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-28 16:55:04,818 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-28 16:55:04,820 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 16:55:04,820 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-28 16:55:04,820 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 16:55:04,820 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 16:55:04,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-28 16:55:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 16:55:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 16:55:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 16:55:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 16:55:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-28 16:55:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 16:55:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-28 16:55:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-28 16:55:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 16:55:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-28 16:55:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-28 16:55:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-28 16:55:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 16:55:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 16:55:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 16:55:06,188 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 16:55:06,188 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-28 16:55:06,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:55:06 BoogieIcfgContainer [2020-10-28 16:55:06,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 16:55:06,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 16:55:06,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 16:55:06,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 16:55:06,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 04:55:03" (1/3) ... [2020-10-28 16:55:06,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9cc707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:55:06, skipping insertion in model container [2020-10-28 16:55:06,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:55:04" (2/3) ... [2020-10-28 16:55:06,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9cc707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:55:06, skipping insertion in model container [2020-10-28 16:55:06,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:55:06" (3/3) ... [2020-10-28 16:55:06,205 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-10-28 16:55:06,219 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 16:55:06,225 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-28 16:55:06,238 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-28 16:55:06,280 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 16:55:06,281 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 16:55:06,281 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 16:55:06,281 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 16:55:06,281 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 16:55:06,282 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 16:55:06,282 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 16:55:06,282 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 16:55:06,316 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2020-10-28 16:55:06,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-28 16:55:06,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:55:06,332 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] [2020-10-28 16:55:06,333 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:55:06,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:55:06,339 INFO L82 PathProgramCache]: Analyzing trace with hash 816903093, now seen corresponding path program 1 times [2020-10-28 16:55:06,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:55:06,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [766111194] [2020-10-28 16:55:06,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:55:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:06,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:06,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:07,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:09,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:09,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 16:55:09,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:55:09,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3081 [2020-10-28 16:55:09,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:09,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:09,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:09,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 16:55:09,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:09,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 16:55:10,120 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:55:10,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:55:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:10,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:10,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:10,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:10,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:10,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 16:55:10,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:10,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:10,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:10,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:10,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:10,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:10,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:55:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:10,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:10,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:10,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:10,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:10,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:10,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:10,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:10,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:10,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:10,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:10,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:10,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:55:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:10,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:10,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:10,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:10,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:10,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:10,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:10,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:10,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:10,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:10,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:10,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:10,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:55:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:10,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:10,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:10,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:10,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:10,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:10,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:10,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:10,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:10,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:10,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:10,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:10,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:55:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:10,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:10,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:10,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:10,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:10,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:10,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:10,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:10,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:10,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-28 16:55:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:10,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:10,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:10,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:10,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:10,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:10,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:10,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:10,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:10,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:10,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:10,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:10,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 16:55:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:10,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:10,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:10,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:10,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:10,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:10,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:10,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:10,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:10,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:10,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:10,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:10,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 16:55:10,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:10,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:10,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:10,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:10,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:10,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:10,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:10,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:10,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:10,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:10,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:10,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:10,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:55:10,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [766111194] [2020-10-28 16:55:10,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:55:10,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 16:55:10,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672098967] [2020-10-28 16:55:10,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 16:55:10,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:55:10,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 16:55:10,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:55:10,279 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 3 states. [2020-10-28 16:55:11,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:55:11,649 INFO L93 Difference]: Finished difference Result 286 states and 374 transitions. [2020-10-28 16:55:11,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 16:55:11,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-10-28 16:55:11,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:55:11,665 INFO L225 Difference]: With dead ends: 286 [2020-10-28 16:55:11,665 INFO L226 Difference]: Without dead ends: 153 [2020-10-28 16:55:11,670 INFO L677 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 [2020-10-28 16:55:11,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-28 16:55:11,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 121. [2020-10-28 16:55:11,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-28 16:55:11,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2020-10-28 16:55:11,765 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 141 transitions. Word has length 53 [2020-10-28 16:55:11,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:55:11,766 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 141 transitions. [2020-10-28 16:55:11,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 16:55:11,766 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 141 transitions. [2020-10-28 16:55:11,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-28 16:55:11,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:55:11,770 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] [2020-10-28 16:55:11,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 16:55:11,770 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:55:11,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:55:11,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1195903335, now seen corresponding path program 1 times [2020-10-28 16:55:11,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:55:11,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [977295266] [2020-10-28 16:55:11,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:55:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:11,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:11,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:12,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:14,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:14,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 16:55:14,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:55:14,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2929 [2020-10-28 16:55:14,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:14,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 16:55:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 16:55:14,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:15,136 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:55:15,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:55:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:15,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:15,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:15,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:15,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:15,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 16:55:15,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:15,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:15,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:15,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:15,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:15,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:15,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:55:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:15,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:15,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:15,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:15,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:15,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:15,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:15,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:15,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:15,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:15,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:15,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:15,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:55:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:15,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:15,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:15,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:15,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:15,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:55:15,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:15,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:15,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:15,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:15,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:15,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:15,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:55:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:15,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:15,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:15,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:15,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:15,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:15,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:15,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:15,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:15,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:15,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:15,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:15,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:55:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:15,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:15,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:15,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:15,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:15,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:55:15,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:15,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:15,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:15,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:55:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:15,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:15,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:15,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:15,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:15,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:15,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:15,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:15,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:15,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:15,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:15,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:15,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 16:55:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:15,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:15,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:15,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:15,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:15,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:15,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:15,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:15,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:15,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:15,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:15,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:15,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 16:55:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:15,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:15,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:15,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:15,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:15,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:15,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:15,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:15,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:15,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:15,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:15,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:15,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:55:15,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [977295266] [2020-10-28 16:55:15,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:55:15,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 16:55:15,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626167759] [2020-10-28 16:55:15,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 16:55:15,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:55:15,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 16:55:15,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 16:55:15,237 INFO L87 Difference]: Start difference. First operand 121 states and 141 transitions. Second operand 4 states. [2020-10-28 16:55:15,830 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:55:16,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:55:16,740 INFO L93 Difference]: Finished difference Result 207 states and 251 transitions. [2020-10-28 16:55:16,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:55:16,741 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-28 16:55:16,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:55:16,744 INFO L225 Difference]: With dead ends: 207 [2020-10-28 16:55:16,744 INFO L226 Difference]: Without dead ends: 137 [2020-10-28 16:55:16,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:55:16,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-28 16:55:16,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 112. [2020-10-28 16:55:16,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-28 16:55:16,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 129 transitions. [2020-10-28 16:55:16,814 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 129 transitions. Word has length 54 [2020-10-28 16:55:16,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:55:16,815 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 129 transitions. [2020-10-28 16:55:16,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 16:55:16,815 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 129 transitions. [2020-10-28 16:55:16,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-28 16:55:16,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:55:16,826 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] [2020-10-28 16:55:16,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 16:55:16,826 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:55:16,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:55:16,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1948632119, now seen corresponding path program 1 times [2020-10-28 16:55:16,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:55:16,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357970868] [2020-10-28 16:55:16,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:55:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:16,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:17,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:18,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:18,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-28 16:55:18,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:55:18,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1668 [2020-10-28 16:55:18,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:18,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:18,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 16:55:18,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:18,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-28 16:55:18,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:18,977 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:55:18,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:55:19,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:19,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:19,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:19,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:19,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:19,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-28 16:55:19,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:19,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:19,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:19,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:19,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:55:19,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:19,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:55:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:19,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:19,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:19,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:19,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:19,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:19,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:19,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:19,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:19,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:19,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:19,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:19,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:55:19,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:19,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:19,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:19,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:19,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:19,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:19,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:19,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:19,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:19,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:19,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:19,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:19,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:55:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:19,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:19,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:19,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:19,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:19,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:19,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:19,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:19,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:19,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:19,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:55:19,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 16:55:19,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:55:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:19,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:19,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:19,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:19,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:19,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:19,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:19,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:19,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:19,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:19,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:19,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:19,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 16:55:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:19,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:19,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:19,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:19,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:19,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:19,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:19,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:19,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:19,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:19,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:19,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:19,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 16:55:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:19,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:19,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:19,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:19,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:19,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:19,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:19,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:19,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:19,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:19,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:19,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:19,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 16:55:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:19,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:19,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:19,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:19,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:19,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:55:19,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:19,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:19,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:19,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:19,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:19,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:19,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:55:19,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357970868] [2020-10-28 16:55:19,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:55:19,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 16:55:19,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940703638] [2020-10-28 16:55:19,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 16:55:19,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:55:19,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 16:55:19,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 16:55:19,194 INFO L87 Difference]: Start difference. First operand 112 states and 129 transitions. Second operand 4 states. [2020-10-28 16:55:19,647 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:55:21,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:55:21,171 INFO L93 Difference]: Finished difference Result 323 states and 395 transitions. [2020-10-28 16:55:21,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:55:21,172 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-10-28 16:55:21,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:55:21,176 INFO L225 Difference]: With dead ends: 323 [2020-10-28 16:55:21,176 INFO L226 Difference]: Without dead ends: 235 [2020-10-28 16:55:21,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:55:21,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-10-28 16:55:21,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 187. [2020-10-28 16:55:21,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-10-28 16:55:21,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 220 transitions. [2020-10-28 16:55:21,273 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 220 transitions. Word has length 58 [2020-10-28 16:55:21,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:55:21,274 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 220 transitions. [2020-10-28 16:55:21,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 16:55:21,274 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 220 transitions. [2020-10-28 16:55:21,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-28 16:55:21,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:55:21,276 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] [2020-10-28 16:55:21,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 16:55:21,276 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:55:21,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:55:21,277 INFO L82 PathProgramCache]: Analyzing trace with hash 845648960, now seen corresponding path program 1 times [2020-10-28 16:55:21,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:55:21,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219556245] [2020-10-28 16:55:21,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:55:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:21,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:22,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:22,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-28 16:55:22,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:22,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 839 [2020-10-28 16:55:22,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:22,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:22,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 16:55:22,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:22,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 16:55:22,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:22,585 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:55:22,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:55:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:22,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:22,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:22,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:22,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:22,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-28 16:55:22,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:22,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:22,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:22,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:22,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:55:22,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:22,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:55:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:22,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:22,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:22,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:22,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:22,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:22,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:22,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:22,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:22,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:22,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:22,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:22,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:55:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:22,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:22,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:22,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:22,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:22,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:22,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:22,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:22,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:22,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:22,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:22,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:22,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:55:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:22,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:22,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:22,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:22,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:22,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:22,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:22,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:22,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:22,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:22,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:55:22,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:22,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:55:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:22,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:22,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:22,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:22,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:22,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:22,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:22,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:22,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:22,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:22,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:22,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:22,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:55:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:22,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:22,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:22,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:55:22,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:22,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:22,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:22,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:22,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:22,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:22,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 16:55:22,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:22,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 16:55:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:22,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:22,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:22,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:22,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:22,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:22,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:22,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:22,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:22,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:22,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:55:22,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:22,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 16:55:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:22,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:22,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:22,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:22,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:22,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:55:22,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:22,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:22,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:55:22,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:22,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:55:22,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:22,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-28 16:55:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:22,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:22,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:22,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:22,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:22,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:22,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:22,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:22,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:22,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:22,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:22,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:22,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:55:22,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219556245] [2020-10-28 16:55:22,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:55:22,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 16:55:22,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197692204] [2020-10-28 16:55:22,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 16:55:22,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:55:22,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 16:55:22,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-28 16:55:22,858 INFO L87 Difference]: Start difference. First operand 187 states and 220 transitions. Second operand 9 states. [2020-10-28 16:55:23,427 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:55:25,050 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:55:25,513 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-28 16:55:25,925 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-28 16:55:26,289 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:55:26,859 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 16:55:27,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:55:27,767 INFO L93 Difference]: Finished difference Result 590 states and 795 transitions. [2020-10-28 16:55:27,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 16:55:27,768 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-10-28 16:55:27,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:55:27,776 INFO L225 Difference]: With dead ends: 590 [2020-10-28 16:55:27,776 INFO L226 Difference]: Without dead ends: 427 [2020-10-28 16:55:27,780 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-28 16:55:27,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-10-28 16:55:27,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 338. [2020-10-28 16:55:27,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-10-28 16:55:27,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 409 transitions. [2020-10-28 16:55:27,886 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 409 transitions. Word has length 64 [2020-10-28 16:55:27,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:55:27,887 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 409 transitions. [2020-10-28 16:55:27,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 16:55:27,887 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 409 transitions. [2020-10-28 16:55:27,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-28 16:55:27,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:55:27,890 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] [2020-10-28 16:55:27,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 16:55:27,890 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:55:27,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:55:27,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1167234182, now seen corresponding path program 1 times [2020-10-28 16:55:27,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:55:27,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1699357073] [2020-10-28 16:55:27,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:55:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 16:55:27,946 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 16:55:27,946 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 16:55:27,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 16:55:27,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 04:55:27 BoogieIcfgContainer [2020-10-28 16:55:27,972 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 16:55:27,974 INFO L168 Benchmark]: Toolchain (without parser) took 24055.67 ms. Allocated memory was 151.0 MB in the beginning and 396.4 MB in the end (delta: 245.4 MB). Free memory was 107.4 MB in the beginning and 258.4 MB in the end (delta: -151.0 MB). Peak memory consumption was 95.2 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:27,974 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 16:55:27,975 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.05 ms. Allocated memory is still 151.0 MB. Free memory was 106.9 MB in the beginning and 125.6 MB in the end (delta: -18.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:27,976 INFO L168 Benchmark]: Boogie Preprocessor took 123.28 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 121.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:27,977 INFO L168 Benchmark]: RCFGBuilder took 1478.92 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 121.6 MB in the beginning and 110.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 43.7 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:27,978 INFO L168 Benchmark]: TraceAbstraction took 21774.84 ms. Allocated memory was 181.4 MB in the beginning and 396.4 MB in the end (delta: 215.0 MB). Free memory was 110.2 MB in the beginning and 258.4 MB in the end (delta: -148.2 MB). Peak memory consumption was 67.3 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:27,981 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 665.05 ms. Allocated memory is still 151.0 MB. Free memory was 106.9 MB in the beginning and 125.6 MB in the end (delta: -18.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 123.28 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 121.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1478.92 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 121.6 MB in the beginning and 110.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 43.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 21774.84 ms. Allocated memory was 181.4 MB in the beginning and 396.4 MB in the end (delta: 215.0 MB). Free memory was 110.2 MB in the beginning and 258.4 MB in the end (delta: -148.2 MB). Peak memory consumption was 67.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L326] int cleanupTimeShifts = 4; [L425] int waterLevel = 1; [L426] int methaneLevelCritical = 0; [L732] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L402] int retValue_acc ; [L403] int tmp ; [L407] FCALL select_helpers() [L408] FCALL select_features() [L409] CALL, EXPR valid_product() [L545] int retValue_acc ; [L548] retValue_acc = 1 [L549] return (retValue_acc); [L409] RET, EXPR valid_product() [L409] tmp = valid_product() [L411] COND TRUE \read(tmp) [L413] FCALL setup() [L414] CALL runTest() [L393] CALL test() [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) [L69] CALL waterRise() [L443] COND TRUE waterLevel < 2 [L444] waterLevel = waterLevel + 1 [L69] RET waterRise() [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___2)) [L91] tmp___1 = __VERIFIER_nondet_int() [L93] COND TRUE \read(tmp___1) [L95] CALL stopSystem() [L278] COND FALSE !(\read(pumpRunning)) [L285] systemActive = 0 [L95] RET stopSystem() [L102] CALL timeShift() [L130] COND FALSE !(\read(pumpRunning)) [L137] COND FALSE !(\read(systemActive)) [L145] CALL __utac_acc__Specification3_spec__1() [L293] int tmp ; [L294] int tmp___0 ; [L295] int tmp___1 ; [L299] CALL, EXPR isMethaneLevelCritical() [L464] int retValue_acc ; [L467] retValue_acc = methaneLevelCritical [L468] return (retValue_acc); [L299] RET, EXPR isMethaneLevelCritical() [L299] tmp = isMethaneLevelCritical() [L301] COND FALSE !(\read(tmp)) [L305] CALL, EXPR getWaterLevel() [L496] int retValue_acc ; [L499] retValue_acc = waterLevel [L500] return (retValue_acc); [L305] RET, EXPR getWaterLevel() [L305] tmp___0 = getWaterLevel() [L307] COND TRUE tmp___0 == 2 [L309] CALL, EXPR isPumpRunning() [L211] int retValue_acc ; [L214] retValue_acc = pumpRunning [L215] return (retValue_acc); [L309] RET, EXPR isPumpRunning() [L309] tmp___1 = isPumpRunning() [L311] COND FALSE !(\read(tmp___1)) [L315] CALL __automaton_fail() [L558] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product35.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 236 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 451 SDtfs, 655 SDslu, 231 SDs, 0 SdLazy, 1207 SolverSat, 395 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=338occurred 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 194 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 10.8s InterpolantComputationTime, 297 NumberOfCodeBlocks, 297 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 68212 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...