/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=SHALLOWEST --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_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 03:34:39,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 03:34:39,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 03:34:39,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 03:34:39,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 03:34:39,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 03:34:39,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 03:34:39,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 03:34:39,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 03:34:39,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 03:34:39,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 03:34:39,615 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 03:34:39,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 03:34:39,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 03:34:39,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 03:34:39,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 03:34:39,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 03:34:39,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 03:34:39,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 03:34:39,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 03:34:39,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 03:34:39,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 03:34:39,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 03:34:39,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 03:34:39,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 03:34:39,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 03:34:39,662 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 03:34:39,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 03:34:39,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 03:34:39,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 03:34:39,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 03:34:39,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 03:34:39,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 03:34:39,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 03:34:39,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 03:34:39,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 03:34:39,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 03:34:39,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 03:34:39,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 03:34:39,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 03:34:39,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 03:34:39,687 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 [2020-10-27 03:34:39,734 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 03:34:39,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 03:34:39,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 03:34:39,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 03:34:39,739 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 03:34:39,740 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 03:34:39,740 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 03:34:39,740 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 03:34:39,740 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 03:34:39,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 03:34:39,742 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 03:34:39,742 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 03:34:39,742 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 03:34:39,742 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 03:34:39,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 03:34:39,743 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 03:34:39,743 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 03:34:39,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 03:34:39,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 03:34:39,743 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 03:34:39,744 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 03:34:39,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:34:39,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 03:34:39,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 03:34:39,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 03:34:39,745 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 03:34:39,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 03:34:39,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 03:34:39,745 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 03:34:39,745 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 03:34:40,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 03:34:40,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 03:34:40,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 03:34:40,243 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 03:34:40,244 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 03:34:40,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-10-27 03:34:40,324 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/55f8f69f0/e6ae21cb1aef4585b3543fb1f43348c3/FLAGeeeba6437 [2020-10-27 03:34:41,053 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 03:34:41,054 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-10-27 03:34:41,076 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/55f8f69f0/e6ae21cb1aef4585b3543fb1f43348c3/FLAGeeeba6437 [2020-10-27 03:34:41,368 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/55f8f69f0/e6ae21cb1aef4585b3543fb1f43348c3 [2020-10-27 03:34:41,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 03:34:41,379 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 03:34:41,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 03:34:41,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 03:34:41,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 03:34:41,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:34:41" (1/1) ... [2020-10-27 03:34:41,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77ae7ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:41, skipping insertion in model container [2020-10-27 03:34:41,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:34:41" (1/1) ... [2020-10-27 03:34:41,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 03:34:41,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 03:34:41,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:34:41,864 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 03:34:41,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:34:41,986 INFO L208 MainTranslator]: Completed translation [2020-10-27 03:34:41,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:41 WrapperNode [2020-10-27 03:34:41,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 03:34:41,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 03:34:41,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 03:34:41,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 03:34:42,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:41" (1/1) ... [2020-10-27 03:34:42,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:41" (1/1) ... [2020-10-27 03:34:42,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:41" (1/1) ... [2020-10-27 03:34:42,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:41" (1/1) ... [2020-10-27 03:34:42,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:41" (1/1) ... [2020-10-27 03:34:42,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:41" (1/1) ... [2020-10-27 03:34:42,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:41" (1/1) ... [2020-10-27 03:34:42,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 03:34:42,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 03:34:42,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 03:34:42,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 03:34:42,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:41" (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 [2020-10-27 03:34:42,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 03:34:42,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 03:34:42,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 03:34:42,192 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 03:34:42,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:34:42,193 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 03:34:42,193 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 03:34:42,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 03:34:42,194 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 03:34:42,194 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 03:34:42,195 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 03:34:42,195 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 03:34:42,195 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 03:34:42,195 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 03:34:42,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 03:34:42,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 03:34:42,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 03:34:42,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 03:34:42,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 03:34:42,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 03:34:42,197 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 03:34:42,197 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 03:34:42,197 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-10-27 03:34:42,198 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 03:34:42,198 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 03:34:42,198 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 03:34:42,198 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 03:34:42,198 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 03:34:42,198 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-27 03:34:42,199 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 03:34:42,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 03:34:42,219 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 03:34:42,219 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 03:34:42,220 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 03:34:42,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 03:34:42,220 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 03:34:42,220 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 03:34:42,220 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 03:34:42,220 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 03:34:42,220 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 03:34:42,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 03:34:42,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 03:34:42,221 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 03:34:42,221 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 03:34:42,221 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 03:34:42,221 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 03:34:42,221 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 03:34:42,222 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:34:42,222 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 03:34:42,222 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 03:34:42,225 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 03:34:42,225 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 03:34:42,226 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 03:34:42,226 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 03:34:42,226 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 03:34:42,227 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 03:34:42,227 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 03:34:42,230 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 03:34:42,230 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 03:34:42,230 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 03:34:42,231 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 03:34:42,231 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 03:34:42,231 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 03:34:42,231 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 03:34:42,231 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 03:34:42,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 03:34:42,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 03:34:42,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 03:34:42,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 03:34:42,232 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 03:34:42,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 03:34:42,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 03:34:42,234 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 03:34:42,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 03:34:42,235 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 03:34:42,237 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 03:34:42,237 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 03:34:42,237 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 03:34:42,238 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 03:34:42,238 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 03:34:42,238 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 03:34:42,238 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-27 03:34:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 03:34:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-10-27 03:34:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 03:34:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 03:34:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 03:34:42,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 03:34:43,540 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 03:34:43,540 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 03:34:43,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:34:43 BoogieIcfgContainer [2020-10-27 03:34:43,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 03:34:43,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 03:34:43,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 03:34:43,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 03:34:43,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:34:41" (1/3) ... [2020-10-27 03:34:43,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dafdfb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:34:43, skipping insertion in model container [2020-10-27 03:34:43,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:41" (2/3) ... [2020-10-27 03:34:43,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dafdfb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:34:43, skipping insertion in model container [2020-10-27 03:34:43,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:34:43" (3/3) ... [2020-10-27 03:34:43,557 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2020-10-27 03:34:43,571 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 03:34:43,577 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 03:34:43,592 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 03:34:43,639 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 03:34:43,639 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 03:34:43,640 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 03:34:43,640 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 03:34:43,640 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 03:34:43,641 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 03:34:43,641 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 03:34:43,641 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 03:34:43,673 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2020-10-27 03:34:43,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 03:34:43,688 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:34:43,689 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] [2020-10-27 03:34:43,690 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]=== [2020-10-27 03:34:43,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:34:43,699 INFO L82 PathProgramCache]: Analyzing trace with hash -888205508, now seen corresponding path program 1 times [2020-10-27 03:34:43,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:34:43,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1164065119] [2020-10-27 03:34:43,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:34:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:44,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:44,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:45,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:47,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:47,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 03:34:47,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 03:34:47,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3048 [2020-10-27 03:34:47,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:47,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 03:34:47,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:34:47,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 03:34:47,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-27 03:34:47,601 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:34:47,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:34:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:47,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:47,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:47,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:34:47,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:47,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-27 03:34:47,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:47,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:34:47,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:47,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:34:47,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:47,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:34:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:47,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:47,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:47,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:34:47,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:47,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:34:47,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:47,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:34:47,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:47,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:34:47,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:47,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:34:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:47,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:47,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:47,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:34:47,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:47,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:34:47,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:47,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:34:47,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:47,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:34:47,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:47,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:34:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:47,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:47,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:47,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:34:47,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:47,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:34:47,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:47,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:34:47,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:47,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:34:47,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:47,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:34:47,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:47,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:47,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:47,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:34:47,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:47,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:34:47,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:47,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:34:47,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:47,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:34:47,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 03:34:47,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 03:34:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:47,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:47,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:47,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:34:47,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:47,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 03:34:47,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:47,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:34:47,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:34:47,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:34:47,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:47,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 03:34:47,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:47,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:47,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:47,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:34:47,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:47,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:34:47,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:47,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:34:47,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:34:47,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:34:47,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:47,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 03:34:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:47,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:47,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:47,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:34:47,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:47,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:34:47,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:47,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:34:47,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:34:47,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:34:47,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:47,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:34:47,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1164065119] [2020-10-27 03:34:47,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:34:47,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 03:34:47,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518283337] [2020-10-27 03:34:47,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 03:34:47,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:34:47,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 03:34:47,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 03:34:47,887 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 4 states. [2020-10-27 03:34:48,361 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:34:50,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:34:50,044 INFO L93 Difference]: Finished difference Result 336 states and 453 transitions. [2020-10-27 03:34:50,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 03:34:50,047 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-27 03:34:50,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:34:50,069 INFO L225 Difference]: With dead ends: 336 [2020-10-27 03:34:50,072 INFO L226 Difference]: Without dead ends: 214 [2020-10-27 03:34:50,081 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 [2020-10-27 03:34:50,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-27 03:34:50,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 157. [2020-10-27 03:34:50,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-27 03:34:50,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 186 transitions. [2020-10-27 03:34:50,293 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 186 transitions. Word has length 53 [2020-10-27 03:34:50,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:34:50,294 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 186 transitions. [2020-10-27 03:34:50,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 03:34:50,299 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 186 transitions. [2020-10-27 03:34:50,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-27 03:34:50,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:34:50,307 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:34:50,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 03:34:50,307 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]=== [2020-10-27 03:34:50,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:34:50,308 INFO L82 PathProgramCache]: Analyzing trace with hash -362848299, now seen corresponding path program 1 times [2020-10-27 03:34:50,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:34:50,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1667871235] [2020-10-27 03:34:50,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:34:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:50,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:50,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:52,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:52,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-27 03:34:52,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:34:52,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2414 [2020-10-27 03:34:52,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:52,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 03:34:52,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:34:52,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-27 03:34:52,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:53,214 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:34:53,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:34:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:53,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:53,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:53,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:34:53,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:53,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-27 03:34:53,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:53,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:34:53,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:53,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:34:53,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:53,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:34:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:53,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:53,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:53,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:34:53,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:53,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:34:53,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:53,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:34:53,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:53,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:34:53,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:53,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:34:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:53,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:53,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:53,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:34:53,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:53,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:34:53,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:53,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:34:53,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:53,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:34:53,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:53,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:34:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:53,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:53,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:53,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:34:53,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:53,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:34:53,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:53,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:34:53,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:53,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:34:53,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:53,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:34:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:53,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:53,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:53,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:34:53,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:53,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 03:34:53,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:53,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:34:53,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:53,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:34:53,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:53,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 03:34:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:53,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:53,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:53,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:34:53,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:53,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:34:53,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:53,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:34:53,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:53,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:34:53,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:53,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 03:34:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:53,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:53,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:53,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:34:53,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:53,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:34:53,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:53,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:34:53,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:53,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:34:53,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:53,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 03:34:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:53,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:53,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:53,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:34:53,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:53,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:34:53,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:53,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:34:53,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:53,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:34:53,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:53,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 03:34:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:53,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:53,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:53,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:34:53,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:53,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:34:53,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:53,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:34:53,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:34:53,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:34:53,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:34:53,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:34:53,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1667871235] [2020-10-27 03:34:53,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:34:53,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 03:34:53,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499912089] [2020-10-27 03:34:53,494 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 03:34:53,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:34:53,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 03:34:53,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-27 03:34:53,497 INFO L87 Difference]: Start difference. First operand 157 states and 186 transitions. Second operand 7 states. [2020-10-27 03:34:54,163 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:34:55,879 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 206 [2020-10-27 03:34:56,357 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 03:34:56,724 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 03:34:57,128 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 03:34:57,607 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:34:58,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:34:58,204 INFO L93 Difference]: Finished difference Result 457 states and 590 transitions. [2020-10-27 03:34:58,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 03:34:58,205 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-10-27 03:34:58,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:34:58,210 INFO L225 Difference]: With dead ends: 457 [2020-10-27 03:34:58,210 INFO L226 Difference]: Without dead ends: 324 [2020-10-27 03:34:58,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-27 03:34:58,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-10-27 03:34:58,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 284. [2020-10-27 03:34:58,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-10-27 03:34:58,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 352 transitions. [2020-10-27 03:34:58,344 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 352 transitions. Word has length 57 [2020-10-27 03:34:58,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:34:58,344 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 352 transitions. [2020-10-27 03:34:58,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 03:34:58,344 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 352 transitions. [2020-10-27 03:34:58,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-27 03:34:58,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:34:58,355 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] [2020-10-27 03:34:58,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 03:34:58,356 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]=== [2020-10-27 03:34:58,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:34:58,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1106578757, now seen corresponding path program 1 times [2020-10-27 03:34:58,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:34:58,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286567161] [2020-10-27 03:34:58,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:34:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:58,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:58,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:58,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:00,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:03,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:03,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 03:35:03,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 03:35:03,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-27 03:35:03,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:03,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 03:35:03,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:03,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 03:35:03,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:03,831 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:35:03,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:35:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:03,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:03,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:03,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:03,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:03,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-27 03:35:03,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:03,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:03,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:03,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:35:03,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:03,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:35:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:03,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:03,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:03,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:35:03,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:03,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:03,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:03,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:03,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:03,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:35:03,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:03,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:35:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:03,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:03,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:03,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:35:03,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:03,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:03,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:03,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:03,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:03,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:35:03,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:03,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:35:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:03,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:03,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:03,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:03,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:03,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:35:03,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:03,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:03,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:03,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:35:03,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:03,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:35:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:03,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:03,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:03,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:35:03,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:03,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:03,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:03,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:03,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:03,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:35:03,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:04,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 03:35:04,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:04,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:04,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:04,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:04,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:04,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:04,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:04,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:35:04,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:04,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:35:04,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:04,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 03:35:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:04,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:04,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:04,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:35:04,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:04,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:04,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:04,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:35:04,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 03:35:04,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:35:04,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:04,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 03:35:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:04,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:04,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:04,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:04,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:04,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:04,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:04,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:35:04,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:04,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:35:04,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:04,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 03:35:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:04,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:04,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:04,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:04,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:04,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:04,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:04,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:35:04,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:04,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:35:04,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:04,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 03:35:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:04,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:04,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:04,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:04,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:04,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:04,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:04,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:35:04,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:04,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:35:04,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:04,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:35:04,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [286567161] [2020-10-27 03:35:04,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:35:04,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 03:35:04,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725125052] [2020-10-27 03:35:04,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 03:35:04,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:35:04,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 03:35:04,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 03:35:04,046 INFO L87 Difference]: Start difference. First operand 284 states and 352 transitions. Second operand 5 states. [2020-10-27 03:35:04,622 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:35:05,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:35:05,357 INFO L93 Difference]: Finished difference Result 478 states and 613 transitions. [2020-10-27 03:35:05,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 03:35:05,358 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 61 [2020-10-27 03:35:05,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:35:05,361 INFO L225 Difference]: With dead ends: 478 [2020-10-27 03:35:05,361 INFO L226 Difference]: Without dead ends: 249 [2020-10-27 03:35:05,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-27 03:35:05,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-10-27 03:35:05,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 232. [2020-10-27 03:35:05,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-27 03:35:05,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 269 transitions. [2020-10-27 03:35:05,431 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 269 transitions. Word has length 61 [2020-10-27 03:35:05,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:35:05,431 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 269 transitions. [2020-10-27 03:35:05,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 03:35:05,431 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 269 transitions. [2020-10-27 03:35:05,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-27 03:35:05,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:35:05,433 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:35:05,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 03:35:05,433 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]=== [2020-10-27 03:35:05,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:35:05,434 INFO L82 PathProgramCache]: Analyzing trace with hash -841705391, now seen corresponding path program 1 times [2020-10-27 03:35:05,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:35:05,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1753085912] [2020-10-27 03:35:05,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:35:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 03:35:05,478 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 03:35:05,478 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 03:35:05,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 03:35:05,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:35:05 BoogieIcfgContainer [2020-10-27 03:35:05,519 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 03:35:05,521 INFO L168 Benchmark]: Toolchain (without parser) took 24147.22 ms. Allocated memory was 159.4 MB in the beginning and 533.7 MB in the end (delta: 374.3 MB). Free memory was 134.4 MB in the beginning and 509.7 MB in the end (delta: -375.3 MB). Peak memory consumption was 316.0 MB. Max. memory is 8.0 GB. [2020-10-27 03:35:05,522 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 159.4 MB. Free memory is still 131.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 03:35:05,523 INFO L168 Benchmark]: CACSL2BoogieTranslator took 607.15 ms. Allocated memory is still 159.4 MB. Free memory was 133.8 MB in the beginning and 113.8 MB in the end (delta: 20.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-27 03:35:05,524 INFO L168 Benchmark]: Boogie Preprocessor took 109.95 ms. Allocated memory is still 159.4 MB. Free memory was 113.8 MB in the beginning and 109.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 03:35:05,524 INFO L168 Benchmark]: RCFGBuilder took 1443.83 ms. Allocated memory is still 159.4 MB. Free memory was 109.9 MB in the beginning and 58.9 MB in the end (delta: 51.0 MB). Peak memory consumption was 50.7 MB. Max. memory is 8.0 GB. [2020-10-27 03:35:05,525 INFO L168 Benchmark]: TraceAbstraction took 21971.39 ms. Allocated memory was 159.4 MB in the beginning and 533.7 MB in the end (delta: 374.3 MB). Free memory was 58.4 MB in the beginning and 509.7 MB in the end (delta: -451.3 MB). Peak memory consumption was 240.2 MB. Max. memory is 8.0 GB. [2020-10-27 03:35:05,529 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 159.4 MB. Free memory is still 131.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 607.15 ms. Allocated memory is still 159.4 MB. Free memory was 133.8 MB in the beginning and 113.8 MB in the end (delta: 20.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 109.95 ms. Allocated memory is still 159.4 MB. Free memory was 113.8 MB in the beginning and 109.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1443.83 ms. Allocated memory is still 159.4 MB. Free memory was 109.9 MB in the beginning and 58.9 MB in the end (delta: 51.0 MB). Peak memory consumption was 50.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 21971.39 ms. Allocated memory was 159.4 MB in the beginning and 533.7 MB in the end (delta: 374.3 MB). Free memory was 58.4 MB in the beginning and 509.7 MB in the end (delta: -451.3 MB). Peak memory consumption was 240.2 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: [L80] int cleanupTimeShifts = 4; [L388] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L590] int pumpRunning = 0; [L591] int systemActive = 1; [L806] int waterLevel = 1; [L807] int methaneLevelCritical = 0; [L161] int retValue_acc ; [L162] int tmp ; [L166] FCALL select_helpers() [L167] FCALL select_features() [L168] CALL, EXPR valid_product() [L210] int retValue_acc ; [L213] retValue_acc = 1 [L214] return (retValue_acc); [L168] RET, EXPR valid_product() [L168] tmp = valid_product() [L170] COND TRUE \read(tmp) [L172] FCALL setup() [L173] CALL runTest() [L152] CALL test() [L731] int splverifierCounter ; [L732] int tmp ; [L733] int tmp___0 ; [L734] int tmp___1 ; [L735] int tmp___2 ; [L738] splverifierCounter = 0 [L740] COND TRUE 1 [L742] COND TRUE splverifierCounter < 4 [L748] tmp = __VERIFIER_nondet_int() [L750] COND TRUE \read(tmp) [L752] CALL waterRise() [L824] COND TRUE waterLevel < 2 [L825] waterLevel = waterLevel + 1 [L752] RET waterRise() [L758] tmp___0 = __VERIFIER_nondet_int() [L760] COND FALSE !(\read(tmp___0)) [L768] tmp___2 = __VERIFIER_nondet_int() [L770] COND TRUE \read(tmp___2) [L785] CALL timeShift() [L597] COND FALSE !(\read(pumpRunning)) [L604] COND TRUE \read(systemActive) [L606] FCALL processEnvironment() [L612] CALL __utac_acc__Specification3_spec__1() [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L53] CALL, EXPR isMethaneLevelCritical() [L845] int retValue_acc ; [L848] retValue_acc = methaneLevelCritical [L849] return (retValue_acc); [L53] RET, EXPR isMethaneLevelCritical() [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L59] CALL, EXPR getWaterLevel() [L877] int retValue_acc ; [L880] retValue_acc = waterLevel [L881] return (retValue_acc); [L59] RET, EXPR getWaterLevel() [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 [L63] CALL, EXPR isPumpRunning() [L670] int retValue_acc ; [L673] retValue_acc = pumpRunning [L674] return (retValue_acc); [L63] RET, EXPR isPumpRunning() [L63] tmp___1 = isPumpRunning() [L65] COND FALSE !(\read(tmp___1)) [L69] CALL __automaton_fail() [L801] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product11.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 222 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 276 SDtfs, 511 SDslu, 220 SDs, 0 SdLazy, 787 SolverSat, 263 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=284occurred in iteration=2, 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, 3 MinimizatonAttempts, 114 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 12.5s InterpolantComputationTime, 236 NumberOfCodeBlocks, 236 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 51616 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...