/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_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 03:37:08,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 03:37:08,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 03:37:08,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 03:37:08,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 03:37:08,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 03:37:08,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 03:37:08,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 03:37:08,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 03:37:08,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 03:37:08,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 03:37:08,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 03:37:08,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 03:37:08,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 03:37:08,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 03:37:08,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 03:37:08,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 03:37:08,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 03:37:08,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 03:37:08,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 03:37:08,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 03:37:08,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 03:37:08,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 03:37:08,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 03:37:08,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 03:37:08,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 03:37:08,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 03:37:08,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 03:37:08,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 03:37:08,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 03:37:08,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 03:37:08,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 03:37:08,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 03:37:08,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 03:37:08,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 03:37:08,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 03:37:08,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 03:37:08,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 03:37:08,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 03:37:08,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 03:37:08,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 03:37:08,412 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 03:37:08,474 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 03:37:08,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 03:37:08,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 03:37:08,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 03:37:08,480 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 03:37:08,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 03:37:08,481 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 03:37:08,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 03:37:08,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 03:37:08,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 03:37:08,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 03:37:08,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 03:37:08,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 03:37:08,483 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 03:37:08,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 03:37:08,484 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 03:37:08,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 03:37:08,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 03:37:08,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 03:37:08,485 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 03:37:08,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 03:37:08,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:37:08,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 03:37:08,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 03:37:08,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 03:37:08,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 03:37:08,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 03:37:08,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 03:37:08,487 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 03:37:08,487 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 03:37:09,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 03:37:09,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 03:37:09,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 03:37:09,077 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 03:37:09,078 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 03:37:09,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-10-27 03:37:09,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43155a310/5ca5ea3882204e56898df77d06ac3133/FLAG72fa28a66 [2020-10-27 03:37:09,915 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 03:37:09,916 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-10-27 03:37:09,931 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43155a310/5ca5ea3882204e56898df77d06ac3133/FLAG72fa28a66 [2020-10-27 03:37:10,228 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43155a310/5ca5ea3882204e56898df77d06ac3133 [2020-10-27 03:37:10,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 03:37:10,240 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 03:37:10,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 03:37:10,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 03:37:10,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 03:37:10,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:37:10" (1/1) ... [2020-10-27 03:37:10,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aeb1f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:10, skipping insertion in model container [2020-10-27 03:37:10,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:37:10" (1/1) ... [2020-10-27 03:37:10,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 03:37:10,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 03:37:10,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:37:10,786 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 03:37:10,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:37:10,989 INFO L208 MainTranslator]: Completed translation [2020-10-27 03:37:10,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:10 WrapperNode [2020-10-27 03:37:10,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 03:37:10,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 03:37:10,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 03:37:10,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 03:37:11,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:10" (1/1) ... [2020-10-27 03:37:11,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:10" (1/1) ... [2020-10-27 03:37:11,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:10" (1/1) ... [2020-10-27 03:37:11,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:10" (1/1) ... [2020-10-27 03:37:11,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:10" (1/1) ... [2020-10-27 03:37:11,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:10" (1/1) ... [2020-10-27 03:37:11,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:10" (1/1) ... [2020-10-27 03:37:11,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 03:37:11,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 03:37:11,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 03:37:11,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 03:37:11,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:10" (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 03:37:11,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 03:37:11,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 03:37:11,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 03:37:11,223 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 03:37:11,223 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 03:37:11,224 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 03:37:11,224 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 03:37:11,224 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 03:37:11,224 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 03:37:11,225 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 03:37:11,226 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 03:37:11,227 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 03:37:11,227 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 03:37:11,227 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 03:37:11,227 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-27 03:37:11,228 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-27 03:37:11,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 03:37:11,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 03:37:11,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 03:37:11,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 03:37:11,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 03:37:11,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 03:37:11,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 03:37:11,231 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 03:37:11,235 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 03:37:11,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 03:37:11,235 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 03:37:11,236 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 03:37:11,236 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 03:37:11,236 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 03:37:11,236 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-27 03:37:11,236 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-27 03:37:11,236 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 03:37:11,236 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 03:37:11,237 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 03:37:11,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 03:37:11,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 03:37:11,237 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 03:37:11,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-27 03:37:11,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-27 03:37:11,237 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-27 03:37:11,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:37:11,238 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 03:37:11,238 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 03:37:11,238 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 03:37:11,238 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 03:37:11,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 03:37:11,238 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 03:37:11,239 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 03:37:11,239 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 03:37:11,239 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 03:37:11,239 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 03:37:11,240 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 03:37:11,240 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 03:37:11,240 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 03:37:11,240 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 03:37:11,241 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 03:37:11,241 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 03:37:11,241 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 03:37:11,241 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-27 03:37:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-27 03:37:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 03:37:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 03:37:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 03:37:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 03:37:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 03:37:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 03:37:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 03:37:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 03:37:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 03:37:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 03:37:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 03:37:11,246 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 03:37:11,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 03:37:11,246 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 03:37:11,246 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 03:37:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 03:37:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 03:37:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 03:37:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 03:37:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 03:37:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 03:37:11,248 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 03:37:11,248 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 03:37:11,248 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 03:37:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 03:37:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 03:37:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 03:37:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-27 03:37:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:37:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 03:37:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 03:37:11,250 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-27 03:37:11,250 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-27 03:37:11,250 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-27 03:37:11,250 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-27 03:37:11,250 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 03:37:11,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 03:37:11,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 03:37:11,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 03:37:12,426 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 03:37:12,426 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 03:37:12,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:37:12 BoogieIcfgContainer [2020-10-27 03:37:12,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 03:37:12,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 03:37:12,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 03:37:12,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 03:37:12,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:37:10" (1/3) ... [2020-10-27 03:37:12,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7466d1d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:37:12, skipping insertion in model container [2020-10-27 03:37:12,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:10" (2/3) ... [2020-10-27 03:37:12,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7466d1d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:37:12, skipping insertion in model container [2020-10-27 03:37:12,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:37:12" (3/3) ... [2020-10-27 03:37:12,440 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product55.cil.c [2020-10-27 03:37:12,453 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 03:37:12,459 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 03:37:12,494 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 03:37:12,524 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 03:37:12,525 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 03:37:12,525 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 03:37:12,525 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 03:37:12,525 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 03:37:12,525 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 03:37:12,526 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 03:37:12,526 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 03:37:12,552 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states. [2020-10-27 03:37:12,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 03:37:12,565 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:37:12,566 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 03:37:12,567 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 03:37:12,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:37:12,574 INFO L82 PathProgramCache]: Analyzing trace with hash -2017572049, now seen corresponding path program 1 times [2020-10-27 03:37:12,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:37:12,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505130421] [2020-10-27 03:37:12,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:37:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:12,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:13,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:13,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:15,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:15,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 03:37:15,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 03:37:15,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3137 [2020-10-27 03:37:15,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:15,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 03:37:15,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:37:15,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 03:37:15,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-27 03:37:16,451 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:37:16,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:37:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:16,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:16,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:16,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:37:16,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:16,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-27 03:37:16,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:16,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:37:16,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:37:16,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:37:16,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:16,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:37:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:16,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:16,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:16,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:37:16,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:16,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:37:16,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:16,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:37:16,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:37:16,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:37:16,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:16,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:37:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:16,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:16,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:16,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:37:16,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:16,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:37:16,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:37:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:37:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:37:16,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:16,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:37:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:16,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:16,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:16,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:37:16,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:16,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:37:16,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:16,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:37:16,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:37:16,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:37:16,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:16,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:37:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:16,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:16,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:16,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:37:16,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:16,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:37:16,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:16,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:37:16,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:37:16,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:37:16,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:16,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 03:37:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:16,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:16,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:16,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:37:16,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:16,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:37:16,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:16,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:37:16,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:37:16,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:37:16,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:16,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 03:37:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:16,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:16,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:16,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:37:16,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:16,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:37:16,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:16,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:37:16,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:37:16,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:37:16,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:16,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 03:37:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:16,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:16,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:16,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:37:16,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:16,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:37:16,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:16,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:37:16,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:37:16,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:37:16,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:16,707 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 03:37:16,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1505130421] [2020-10-27 03:37:16,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:37:16,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 03:37:16,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765636459] [2020-10-27 03:37:16,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 03:37:16,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:37:16,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 03:37:16,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 03:37:16,733 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 4 states. [2020-10-27 03:37:17,206 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:37:20,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:37:20,112 INFO L93 Difference]: Finished difference Result 525 states and 693 transitions. [2020-10-27 03:37:20,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 03:37:20,114 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-27 03:37:20,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:37:20,147 INFO L225 Difference]: With dead ends: 525 [2020-10-27 03:37:20,147 INFO L226 Difference]: Without dead ends: 344 [2020-10-27 03:37:20,153 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 03:37:20,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2020-10-27 03:37:20,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 281. [2020-10-27 03:37:20,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-27 03:37:20,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 342 transitions. [2020-10-27 03:37:20,437 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 342 transitions. Word has length 53 [2020-10-27 03:37:20,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:37:20,438 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 342 transitions. [2020-10-27 03:37:20,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 03:37:20,441 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 342 transitions. [2020-10-27 03:37:20,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-27 03:37:20,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:37:20,460 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] [2020-10-27 03:37:20,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 03:37:20,461 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 03:37:20,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:37:20,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1972020547, now seen corresponding path program 1 times [2020-10-27 03:37:20,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:37:20,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2918857] [2020-10-27 03:37:20,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:37:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:20,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:21,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:21,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 03:37:21,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:21,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1301 [2020-10-27 03:37:21,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:21,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 03:37:21,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:37:21,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 03:37:21,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:37:22,245 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:37:22,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:37:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:22,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:22,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:22,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:37:22,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:22,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-27 03:37:22,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:22,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:37:22,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:37:22,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:37:22,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:22,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:37:22,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:22,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:22,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:22,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:37:22,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:22,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:37:22,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:22,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:37:22,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:37:22,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:37:22,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 03:37:22,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:37:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:22,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:22,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:22,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:37:22,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:22,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:37:22,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:22,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:37:22,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:37:22,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:37:22,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:22,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:37:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:22,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:22,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:22,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:37:22,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:22,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:37:22,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:22,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:37:22,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:37:22,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:37:22,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:22,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:37:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:22,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:22,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:22,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:37:22,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:22,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:37:22,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:22,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:37:22,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:37:22,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:37:22,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:22,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 03:37:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:22,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:22,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:22,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:37:22,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:22,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 03:37:22,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:22,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:37:22,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:37:22,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 03:37:22,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:22,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 03:37:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:22,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:22,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:22,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:37:22,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:22,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:37:22,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:22,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:37:22,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:37:22,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:37:22,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:37:22,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 03:37:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:22,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:22,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:22,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:37:22,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:22,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:37:22,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:22,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:37:22,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:37:22,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:37:22,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:37:22,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 03:37:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:22,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:22,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:22,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:37:22,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:22,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:37:22,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:22,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:37:22,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:37:22,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:37:22,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-27 03:37:22,612 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 03:37:22,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2918857] [2020-10-27 03:37:22,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:37:22,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 03:37:22,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505984872] [2020-10-27 03:37:22,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 03:37:22,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:37:22,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 03:37:22,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 03:37:22,620 INFO L87 Difference]: Start difference. First operand 281 states and 342 transitions. Second operand 8 states. [2020-10-27 03:37:23,347 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:37:25,772 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:37:26,354 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:37:26,825 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:37:27,273 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:37:29,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:37:29,095 INFO L93 Difference]: Finished difference Result 909 states and 1230 transitions. [2020-10-27 03:37:29,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 03:37:29,096 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-27 03:37:29,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:37:29,105 INFO L225 Difference]: With dead ends: 909 [2020-10-27 03:37:29,105 INFO L226 Difference]: Without dead ends: 652 [2020-10-27 03:37:29,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-27 03:37:29,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2020-10-27 03:37:29,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 544. [2020-10-27 03:37:29,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2020-10-27 03:37:29,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 682 transitions. [2020-10-27 03:37:29,293 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 682 transitions. Word has length 64 [2020-10-27 03:37:29,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:37:29,294 INFO L481 AbstractCegarLoop]: Abstraction has 544 states and 682 transitions. [2020-10-27 03:37:29,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 03:37:29,294 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 682 transitions. [2020-10-27 03:37:29,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 03:37:29,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:37:29,299 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] [2020-10-27 03:37:29,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 03:37:29,300 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 03:37:29,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:37:29,300 INFO L82 PathProgramCache]: Analyzing trace with hash -879394153, now seen corresponding path program 1 times [2020-10-27 03:37:29,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:37:29,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903546136] [2020-10-27 03:37:29,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:37:29,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:29,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:29,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:29,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:32,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:34,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:34,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-27 03:37:34,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 03:37:34,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 03:37:34,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:34,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 03:37:34,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:37:34,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-27 03:37:34,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:34,721 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:37:34,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:37:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:34,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:34,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:34,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:37:34,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:34,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-27 03:37:34,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:34,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:37:34,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:37:34,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:37:34,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:34,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:37:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:34,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:34,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:34,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:37:34,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:34,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:37:34,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:34,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:37:34,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:37:34,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:37:34,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:34,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:37:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:34,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:34,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:34,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:37:34,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:34,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:37:34,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:34,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:37:34,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:37:34,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:37:34,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:34,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:37:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:34,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:34,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:34,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:37:34,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:34,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:37:34,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:34,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:37:34,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:37:34,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:37:34,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:34,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:37:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:34,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:34,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:34,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:37:34,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:34,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:37:34,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:34,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:37:34,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:37:34,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:37:34,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:34,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 03:37:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:34,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:34,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:34,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:34,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:37:34,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:37:34,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:37:34,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:34,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:37:34,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 03:37:34,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 03:37:34,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:34,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 03:37:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:34,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:34,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:34,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:37:34,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:34,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:37:34,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:34,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:37:34,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:37:34,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:37:34,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:34,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-27 03:37:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:34,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:34,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:34,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:37:34,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:34,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:37:34,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:34,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:37:34,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:37:34,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:37:34,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:34,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 03:37:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:34,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:34,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:34,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:37:34,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:34,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:37:34,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:34,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:37:34,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:37:34,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:37:34,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:34,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 03:37:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:37:34,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:37:34,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:37:34,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:37:34,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:37:34,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:37:34,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:37:34,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:37:34,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:37:34,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:37:34,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:37:34,942 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 03:37:34,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903546136] [2020-10-27 03:37:34,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:37:34,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 03:37:34,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099577781] [2020-10-27 03:37:34,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 03:37:34,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:37:34,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 03:37:34,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-27 03:37:34,945 INFO L87 Difference]: Start difference. First operand 544 states and 682 transitions. Second operand 7 states. [2020-10-27 03:37:35,472 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:37:38,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:37:38,964 INFO L93 Difference]: Finished difference Result 1428 states and 2036 transitions. [2020-10-27 03:37:38,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 03:37:38,964 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2020-10-27 03:37:38,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:37:38,973 INFO L225 Difference]: With dead ends: 1428 [2020-10-27 03:37:38,973 INFO L226 Difference]: Without dead ends: 908 [2020-10-27 03:37:38,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-27 03:37:38,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2020-10-27 03:37:39,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 756. [2020-10-27 03:37:39,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 756 states. [2020-10-27 03:37:39,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 969 transitions. [2020-10-27 03:37:39,188 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 969 transitions. Word has length 68 [2020-10-27 03:37:39,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:37:39,188 INFO L481 AbstractCegarLoop]: Abstraction has 756 states and 969 transitions. [2020-10-27 03:37:39,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 03:37:39,189 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 969 transitions. [2020-10-27 03:37:39,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 03:37:39,191 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:37:39,191 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] [2020-10-27 03:37:39,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 03:37:39,191 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 03:37:39,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:37:39,192 INFO L82 PathProgramCache]: Analyzing trace with hash -576226985, now seen corresponding path program 1 times [2020-10-27 03:37:39,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:37:39,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492989479] [2020-10-27 03:37:39,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:37:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 03:37:39,235 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 03:37:39,236 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 03:37:39,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 03:37:39,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:37:39 BoogieIcfgContainer [2020-10-27 03:37:39,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 03:37:39,264 INFO L168 Benchmark]: Toolchain (without parser) took 29029.35 ms. Allocated memory was 165.7 MB in the beginning and 584.1 MB in the end (delta: 418.4 MB). Free memory was 140.8 MB in the beginning and 288.0 MB in the end (delta: -147.3 MB). Peak memory consumption was 272.1 MB. Max. memory is 8.0 GB. [2020-10-27 03:37:39,265 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 165.7 MB. Free memory was 136.4 MB in the beginning and 136.3 MB in the end (delta: 102.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 03:37:39,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.56 ms. Allocated memory is still 165.7 MB. Free memory was 140.1 MB in the beginning and 118.3 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-27 03:37:39,267 INFO L168 Benchmark]: Boogie Preprocessor took 138.60 ms. Allocated memory is still 165.7 MB. Free memory was 118.3 MB in the beginning and 114.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 03:37:39,267 INFO L168 Benchmark]: RCFGBuilder took 1299.28 ms. Allocated memory is still 165.7 MB. Free memory was 114.1 MB in the beginning and 58.5 MB in the end (delta: 55.7 MB). Peak memory consumption was 56.5 MB. Max. memory is 8.0 GB. [2020-10-27 03:37:39,269 INFO L168 Benchmark]: TraceAbstraction took 26830.64 ms. Allocated memory was 165.7 MB in the beginning and 584.1 MB in the end (delta: 418.4 MB). Free memory was 57.9 MB in the beginning and 288.0 MB in the end (delta: -230.1 MB). Peak memory consumption was 188.3 MB. Max. memory is 8.0 GB. [2020-10-27 03:37:39,272 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 165.7 MB. Free memory was 136.4 MB in the beginning and 136.3 MB in the end (delta: 102.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 748.56 ms. Allocated memory is still 165.7 MB. Free memory was 140.1 MB in the beginning and 118.3 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 138.60 ms. Allocated memory is still 165.7 MB. Free memory was 118.3 MB in the beginning and 114.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1299.28 ms. Allocated memory is still 165.7 MB. Free memory was 114.1 MB in the beginning and 58.5 MB in the end (delta: 55.7 MB). Peak memory consumption was 56.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 26830.64 ms. Allocated memory was 165.7 MB in the beginning and 584.1 MB in the end (delta: 418.4 MB). Free memory was 57.9 MB in the beginning and 288.0 MB in the end (delta: -230.1 MB). Peak memory consumption was 188.3 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: [L88] int waterLevel = 1; [L89] int methaneLevelCritical = 0; [L369] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L566] int cleanupTimeShifts = 4; [L669] int pumpRunning = 0; [L670] int systemActive = 1; [L642] int retValue_acc ; [L643] int tmp ; [L647] FCALL select_helpers() [L648] FCALL select_features() [L649] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L649] RET, EXPR valid_product() [L649] tmp = valid_product() [L651] COND TRUE \read(tmp) [L653] FCALL setup() [L654] CALL runTest() [L636] CALL test() [L943] int splverifierCounter ; [L944] int tmp ; [L945] int tmp___0 ; [L946] int tmp___1 ; [L947] int tmp___2 ; [L950] splverifierCounter = 0 [L952] COND TRUE 1 [L954] COND TRUE splverifierCounter < 4 [L960] tmp = __VERIFIER_nondet_int() [L962] COND TRUE \read(tmp) [L964] CALL waterRise() [L106] COND TRUE waterLevel < 2 [L107] waterLevel = waterLevel + 1 [L964] RET waterRise() [L970] tmp___0 = __VERIFIER_nondet_int() [L972] COND FALSE !(\read(tmp___0)) [L980] tmp___2 = __VERIFIER_nondet_int() [L982] COND FALSE !(\read(tmp___2)) [L986] tmp___1 = __VERIFIER_nondet_int() [L988] COND TRUE \read(tmp___1) [L990] CALL stopSystem() [L896] COND FALSE !(\read(pumpRunning)) [L903] systemActive = 0 [L990] RET stopSystem() [L997] CALL timeShift() [L677] COND FALSE !(\read(pumpRunning)) [L684] COND FALSE !(\read(systemActive)) [L692] CALL __utac_acc__Specification3_spec__1() [L909] int tmp ; [L910] int tmp___0 ; [L911] int tmp___1 ; [L915] CALL, EXPR isMethaneLevelCritical() [L127] int retValue_acc ; [L130] retValue_acc = methaneLevelCritical [L131] return (retValue_acc); [L915] RET, EXPR isMethaneLevelCritical() [L915] tmp = isMethaneLevelCritical() [L917] COND FALSE !(\read(tmp)) [L921] CALL, EXPR getWaterLevel() [L159] int retValue_acc ; [L162] retValue_acc = waterLevel [L163] return (retValue_acc); [L921] RET, EXPR getWaterLevel() [L921] tmp___0 = getWaterLevel() [L923] COND TRUE tmp___0 == 2 [L925] CALL, EXPR isPumpRunning() [L810] int retValue_acc ; [L813] retValue_acc = pumpRunning [L814] return (retValue_acc); [L925] RET, EXPR isPumpRunning() [L925] tmp___1 = isPumpRunning() [L927] COND FALSE !(\read(tmp___1)) [L931] CALL __automaton_fail() [L195] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product55.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 266 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 13.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 483 SDtfs, 993 SDslu, 389 SDs, 0 SdLazy, 1929 SolverSat, 623 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=756occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 3 MinimizatonAttempts, 323 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 253 NumberOfCodeBlocks, 253 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 59726 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...