/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=DEEPEST --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_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:10:27,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:10:27,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:10:27,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:10:27,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:10:27,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:10:27,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:10:27,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:10:27,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:10:27,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:10:27,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:10:27,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:10:27,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:10:27,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:10:27,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:10:27,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:10:27,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:10:27,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:10:27,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:10:27,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:10:27,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:10:27,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:10:27,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:10:27,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:10:27,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:10:27,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:10:27,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:10:27,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:10:27,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:10:27,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:10:27,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:10:27,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:10:27,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:10:27,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:10:27,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:10:27,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:10:27,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:10:27,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:10:27,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:10:27,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:10:27,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:10:27,150 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 22:10:27,178 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:10:27,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:10:27,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:10:27,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:10:27,180 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:10:27,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:10:27,181 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:10:27,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:10:27,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:10:27,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:10:27,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:10:27,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:10:27,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:10:27,182 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:10:27,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:10:27,183 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:10:27,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:10:27,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:10:27,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:10:27,184 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:10:27,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:10:27,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:10:27,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:10:27,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:10:27,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:10:27,185 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:10:27,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:10:27,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:10:27,186 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:10:27,186 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:10:27,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:10:27,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:10:27,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:10:27,623 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:10:27,624 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:10:27,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product14.cil.c [2020-10-27 22:10:27,704 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0a0e6694/513311ff06894a2c86d39064f8ec7a1f/FLAG4309b35a6 [2020-10-27 22:10:28,488 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:10:28,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product14.cil.c [2020-10-27 22:10:28,504 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0a0e6694/513311ff06894a2c86d39064f8ec7a1f/FLAG4309b35a6 [2020-10-27 22:10:28,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0a0e6694/513311ff06894a2c86d39064f8ec7a1f [2020-10-27 22:10:28,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:10:28,732 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:10:28,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:10:28,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:10:28,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:10:28,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:10:28" (1/1) ... [2020-10-27 22:10:28,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aa97317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:28, skipping insertion in model container [2020-10-27 22:10:28,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:10:28" (1/1) ... [2020-10-27 22:10:28,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:10:28,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:10:29,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:10:29,221 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:10:29,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:10:29,438 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:10:29,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:29 WrapperNode [2020-10-27 22:10:29,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:10:29,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:10:29,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:10:29,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:10:29,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:29" (1/1) ... [2020-10-27 22:10:29,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:29" (1/1) ... [2020-10-27 22:10:29,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:29" (1/1) ... [2020-10-27 22:10:29,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:29" (1/1) ... [2020-10-27 22:10:29,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:29" (1/1) ... [2020-10-27 22:10:29,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:29" (1/1) ... [2020-10-27 22:10:29,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:29" (1/1) ... [2020-10-27 22:10:29,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:10:29,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:10:29,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:10:29,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:10:29,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:29" (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 22:10:29,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:10:29,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:10:29,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 22:10:29,638 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:10:29,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 22:10:29,638 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 22:10:29,639 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 22:10:29,639 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 22:10:29,639 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 22:10:29,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 22:10:29,639 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 22:10:29,639 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-27 22:10:29,639 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 22:10:29,640 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-10-27 22:10:29,640 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 22:10:29,640 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 22:10:29,640 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 22:10:29,640 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 22:10:29,640 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 22:10:29,641 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-27 22:10:29,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 22:10:29,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 22:10:29,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 22:10:29,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 22:10:29,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 22:10:29,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 22:10:29,641 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 22:10:29,642 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 22:10:29,642 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 22:10:29,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 22:10:29,642 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 22:10:29,642 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:10:29,642 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 22:10:29,642 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 22:10:29,643 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 22:10:29,643 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 22:10:29,643 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 22:10:29,643 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 22:10:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:10:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:10:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:10:29,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:10:29,644 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 22:10:29,644 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 22:10:29,644 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 22:10:29,644 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 22:10:29,644 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 22:10:29,644 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 22:10:29,645 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 22:10:29,645 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 22:10:29,645 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 22:10:29,645 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 22:10:29,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 22:10:29,645 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 22:10:29,645 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 22:10:29,646 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 22:10:29,646 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 22:10:29,646 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 22:10:29,646 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 22:10:29,646 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-27 22:10:29,646 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 22:10:29,646 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-27 22:10:29,647 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 22:10:29,647 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-10-27 22:10:29,647 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 22:10:29,647 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 22:10:29,647 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 22:10:29,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 22:10:29,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 22:10:29,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:10:29,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 22:10:29,648 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 22:10:29,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:10:29,648 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 22:10:29,648 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 22:10:29,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:10:29,649 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 22:10:29,649 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 22:10:29,649 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 22:10:29,649 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 22:10:29,649 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 22:10:29,650 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 22:10:29,650 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 22:10:29,650 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 22:10:29,650 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 22:10:29,650 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 22:10:29,650 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:10:29,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:10:29,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:10:29,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:10:31,339 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:10:31,339 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 22:10:31,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:10:31 BoogieIcfgContainer [2020-10-27 22:10:31,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:10:31,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:10:31,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:10:31,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:10:31,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:10:28" (1/3) ... [2020-10-27 22:10:31,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fff953a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:10:31, skipping insertion in model container [2020-10-27 22:10:31,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:29" (2/3) ... [2020-10-27 22:10:31,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fff953a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:10:31, skipping insertion in model container [2020-10-27 22:10:31,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:10:31" (3/3) ... [2020-10-27 22:10:31,351 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product14.cil.c [2020-10-27 22:10:31,366 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:10:31,371 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 22:10:31,389 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 22:10:31,448 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:10:31,450 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:10:31,450 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:10:31,450 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:10:31,451 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:10:31,451 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:10:31,451 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:10:31,451 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:10:31,488 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2020-10-27 22:10:31,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 22:10:31,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:10:31,500 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 22:10:31,501 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 22:10:31,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:10:31,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1491265298, now seen corresponding path program 1 times [2020-10-27 22:10:31,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:10:31,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1608786034] [2020-10-27 22:10:31,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:10:31,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:31,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:32,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:32,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:34,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:34,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 22:10:34,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:10:34,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3068 [2020-10-27 22:10:34,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:34,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:34,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-27 22:10:34,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:34,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 22:10:35,658 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:10:35,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:10:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:35,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:35,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:35,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:35,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:35,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 22:10:35,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:35,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:35,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:10:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:35,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:35,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:35,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:35,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:35,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:35,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:35,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:35,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:35,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:35,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:35,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:10:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:35,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:35,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:35,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:35,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:35,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:35,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:35,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:35,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:35,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:35,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:35,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:10:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:35,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:35,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:35,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:35,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:35,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:35,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:35,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:35,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:35,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:35,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:35,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:10:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:35,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:35,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:35,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:35,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:35,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:35,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:35,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:35,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:35,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:35,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:35,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 22:10:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:35,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:35,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:35,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:35,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:35,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:10:35,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:35,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:35,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:10:35,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:35,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:35,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 22:10:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:35,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:35,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:35,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:35,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:35,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:10:35,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:35,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:35,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:10:35,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:35,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:35,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 22:10:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:35,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:35,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:35,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:35,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:35,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:35,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:35,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:35,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:10:35,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:35,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:35,811 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 22:10:35,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1608786034] [2020-10-27 22:10:35,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:10:35,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 22:10:35,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333482726] [2020-10-27 22:10:35,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 22:10:35,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:10:35,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 22:10:35,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:10:35,839 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 3 states. [2020-10-27 22:10:37,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:10:37,630 INFO L93 Difference]: Finished difference Result 263 states and 347 transitions. [2020-10-27 22:10:37,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 22:10:37,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-10-27 22:10:37,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:10:37,646 INFO L225 Difference]: With dead ends: 263 [2020-10-27 22:10:37,647 INFO L226 Difference]: Without dead ends: 141 [2020-10-27 22:10:37,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:10:37,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-10-27 22:10:37,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 110. [2020-10-27 22:10:37,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-27 22:10:37,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 128 transitions. [2020-10-27 22:10:37,766 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 128 transitions. Word has length 53 [2020-10-27 22:10:37,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:10:37,766 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 128 transitions. [2020-10-27 22:10:37,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 22:10:37,767 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 128 transitions. [2020-10-27 22:10:37,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-27 22:10:37,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:10:37,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:10:37,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:10:37,772 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 22:10:37,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:10:37,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1912396310, now seen corresponding path program 1 times [2020-10-27 22:10:37,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:10:37,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2016725061] [2020-10-27 22:10:37,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:10:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:37,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:37,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:38,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:41,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:41,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-27 22:10:41,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:10:41,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3336 [2020-10-27 22:10:41,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:41,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:41,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 22:10:41,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 22:10:41,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:41,549 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:10:41,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:10:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:41,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:41,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:41,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:41,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:41,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 22:10:41,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:41,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:41,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:41,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:41,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:41,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:10:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:41,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:41,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:41,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:41,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:41,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:10:41,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:41,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:41,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:41,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:41,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:41,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:10:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:41,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:41,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:41,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:41,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:41,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:10:41,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:41,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:41,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:41,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:41,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:41,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:10:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:41,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:41,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:41,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:41,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:41,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:41,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:41,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:41,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:41,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:41,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:41,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:10:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:41,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:41,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:41,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:41,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:41,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:41,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:41,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:41,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:41,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:41,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:10:41,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 22:10:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:41,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:41,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:41,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:41,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:41,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:41,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:41,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:41,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:10:41,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:41,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:10:41,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 22:10:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:41,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:41,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:41,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:41,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:41,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:41,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:41,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:41,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:10:41,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:41,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:41,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 22:10:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:41,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:41,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:41,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:41,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:41,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:41,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:41,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:41,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:10:41,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:41,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:10:41,685 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 22:10:41,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2016725061] [2020-10-27 22:10:41,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:10:41,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:10:41,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212955577] [2020-10-27 22:10:41,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:10:41,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:10:41,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:10:41,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:10:41,694 INFO L87 Difference]: Start difference. First operand 110 states and 128 transitions. Second operand 4 states. [2020-10-27 22:10:42,362 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:10:43,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:10:43,206 INFO L93 Difference]: Finished difference Result 189 states and 230 transitions. [2020-10-27 22:10:43,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 22:10:43,207 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-27 22:10:43,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:10:43,212 INFO L225 Difference]: With dead ends: 189 [2020-10-27 22:10:43,212 INFO L226 Difference]: Without dead ends: 125 [2020-10-27 22:10:43,214 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 22:10:43,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-27 22:10:43,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 101. [2020-10-27 22:10:43,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-27 22:10:43,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 116 transitions. [2020-10-27 22:10:43,285 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 116 transitions. Word has length 54 [2020-10-27 22:10:43,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:10:43,285 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 116 transitions. [2020-10-27 22:10:43,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:10:43,286 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-10-27 22:10:43,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-27 22:10:43,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:10:43,291 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] [2020-10-27 22:10:43,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:10:43,292 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 22:10:43,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:10:43,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1315991649, now seen corresponding path program 1 times [2020-10-27 22:10:43,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:10:43,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815641665] [2020-10-27 22:10:43,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:10:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:43,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:43,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:44,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:44,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 22:10:44,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:10:44,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1610 [2020-10-27 22:10:44,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:44,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:10:44,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:10:44,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-27 22:10:44,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:45,392 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:10:45,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:10:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:45,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:45,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:45,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:45,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:45,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-27 22:10:45,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:45,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:45,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:45,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:10:45,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:45,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:10:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:45,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:45,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:45,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:45,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:45,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:45,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:45,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:45,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:45,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:10:45,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:10:45,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:10:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:45,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:45,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:45,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:45,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:45,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:10:45,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:45,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:45,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:45,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:10:45,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:10:45,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:10:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:45,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:45,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:45,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:45,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:45,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:10:45,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:10:45,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:10:45,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:10:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:45,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:45,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:45,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:45,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:45,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:45,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:10:45,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:10:45,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 22:10:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:45,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:45,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:45,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:45,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:45,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:10:45,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:10:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:45,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:10:45,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 22:10:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:45,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:45,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:45,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:45,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:45,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:10:45,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:45,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:45,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:10:45,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:45,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:45,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:10:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:45,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:45,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:45,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:45,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:45,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:45,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:10:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:45,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:10:45,609 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 22:10:45,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815641665] [2020-10-27 22:10:45,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:10:45,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 22:10:45,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751220812] [2020-10-27 22:10:45,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 22:10:45,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:10:45,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 22:10:45,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 22:10:45,612 INFO L87 Difference]: Start difference. First operand 101 states and 116 transitions. Second operand 5 states. [2020-10-27 22:10:46,246 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:10:47,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:10:47,177 INFO L93 Difference]: Finished difference Result 202 states and 248 transitions. [2020-10-27 22:10:47,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 22:10:47,178 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-10-27 22:10:47,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:10:47,183 INFO L225 Difference]: With dead ends: 202 [2020-10-27 22:10:47,183 INFO L226 Difference]: Without dead ends: 125 [2020-10-27 22:10:47,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 22:10:47,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-27 22:10:47,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 101. [2020-10-27 22:10:47,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-27 22:10:47,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2020-10-27 22:10:47,238 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 59 [2020-10-27 22:10:47,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:10:47,238 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2020-10-27 22:10:47,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 22:10:47,239 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2020-10-27 22:10:47,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-27 22:10:47,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:10:47,241 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] [2020-10-27 22:10:47,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:10:47,241 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 22:10:47,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:10:47,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1392222618, now seen corresponding path program 1 times [2020-10-27 22:10:47,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:10:47,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474240587] [2020-10-27 22:10:47,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:10:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:47,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:48,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:48,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 22:10:48,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:48,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 900 [2020-10-27 22:10:48,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:48,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:10:48,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:10:48,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-27 22:10:48,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:48,613 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:10:48,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:10:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:48,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:48,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:48,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:48,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:48,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-27 22:10:48,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:48,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:48,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:48,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:10:48,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:48,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:10:48,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:48,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:48,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:48,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:48,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:48,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:48,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:48,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:48,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:48,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:10:48,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:10:48,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:10:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:48,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:48,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:48,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:48,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:48,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:10:48,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:48,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:48,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:48,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:10:48,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:10:48,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:10:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:48,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:48,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:48,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:48,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:48,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:10:48,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:48,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:48,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:48,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:10:48,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:48,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:10:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:48,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:48,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:48,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:48,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:48,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:10:48,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:48,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:48,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:48,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:10:48,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:48,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 22:10:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:48,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:48,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:48,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:10:48,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:48,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:10:48,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:48,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:48,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:48,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:10:48,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:48,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:10:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:48,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:48,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:48,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:48,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:48,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:48,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:48,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:48,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:48,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:48,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:10:48,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 22:10:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:48,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:48,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:48,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:48,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:48,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:10:48,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:48,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:48,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:48,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:10:48,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:10:48,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 22:10:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:48,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:48,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:48,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:48,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:48,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:10:48,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:48,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:10:48,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:48,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:10:48,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:48,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 22:10:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:48,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:48,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:48,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:48,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:48,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:10:48,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:48,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:48,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:10:48,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:48,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:10:48,906 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 22:10:48,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474240587] [2020-10-27 22:10:48,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:10:48,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 22:10:48,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220551745] [2020-10-27 22:10:48,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 22:10:48,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:10:48,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 22:10:48,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 22:10:48,910 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand 8 states. [2020-10-27 22:10:49,454 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:10:51,458 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 206 [2020-10-27 22:10:51,888 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 22:10:52,289 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 22:10:52,842 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 22:10:53,307 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:10:53,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:10:53,600 INFO L93 Difference]: Finished difference Result 305 states and 400 transitions. [2020-10-27 22:10:53,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 22:10:53,600 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-10-27 22:10:53,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:10:53,607 INFO L225 Difference]: With dead ends: 305 [2020-10-27 22:10:53,607 INFO L226 Difference]: Without dead ends: 228 [2020-10-27 22:10:53,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-10-27 22:10:53,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-10-27 22:10:53,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 175. [2020-10-27 22:10:53,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-10-27 22:10:53,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 205 transitions. [2020-10-27 22:10:53,718 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 205 transitions. Word has length 67 [2020-10-27 22:10:53,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:10:53,719 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 205 transitions. [2020-10-27 22:10:53,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 22:10:53,719 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 205 transitions. [2020-10-27 22:10:53,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-27 22:10:53,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:10:53,728 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:10:53,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:10:53,729 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:10:53,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:10:53,729 INFO L82 PathProgramCache]: Analyzing trace with hash -399117344, now seen corresponding path program 1 times [2020-10-27 22:10:53,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:10:53,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [578917361] [2020-10-27 22:10:53,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:10:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:53,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:54,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:54,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:56,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:58,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:58,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-27 22:10:58,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:10:58,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4884 [2020-10-27 22:10:58,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:58,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:10:58,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-27 22:10:58,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-27 22:10:58,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:59,064 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:10:59,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:10:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:59,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:59,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:59,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:59,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:59,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 22:10:59,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:59,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:59,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:59,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:59,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:59,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:10:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:59,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:59,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:59,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:59,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:59,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:10:59,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:59,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:59,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:59,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:59,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:59,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:10:59,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:59,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:59,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:59,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:59,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:59,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:59,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:59,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:59,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:59,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:59,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 18 [2020-10-27 22:10:59,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:10:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:59,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:59,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:59,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:59,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:59,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:59,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:59,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:59,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:59,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:59,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:59,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:10:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:59,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:59,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:59,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:59,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:59,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:10:59,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:59,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:59,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:59,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:59,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:59,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 22:10:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:59,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:59,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:59,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:59,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:59,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:10:59,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:59,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:59,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:59,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:10:59,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:59,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 22:10:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:59,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:59,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:59,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:59,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:10:59,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:10:59,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:10:59,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:59,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:10:59,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:10:59,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:10:59,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:59,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:10:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:59,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:59,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:59,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:59,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:59,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:59,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:59,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:59,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:59,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:10:59,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:59,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:10:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:59,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:59,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:59,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:59,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:59,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:10:59,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:59,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:59,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:59,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:10:59,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:59,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:10:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:59,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:59,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:59,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:59,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:59,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:10:59,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:59,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:59,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:59,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:10:59,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:59,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 22:10:59,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:59,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:59,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:59,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:59,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:59,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:10:59,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:59,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:10:59,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:59,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:10:59,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:59,296 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 22:10:59,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [578917361] [2020-10-27 22:10:59,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:10:59,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 22:10:59,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784712591] [2020-10-27 22:10:59,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 22:10:59,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:10:59,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 22:10:59,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-27 22:10:59,300 INFO L87 Difference]: Start difference. First operand 175 states and 205 transitions. Second operand 9 states. [2020-10-27 22:11:00,428 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:11:01,834 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:11:02,312 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 22:11:03,488 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 22:11:03,913 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 22:11:04,321 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 22:11:05,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:11:05,276 INFO L93 Difference]: Finished difference Result 523 states and 700 transitions. [2020-10-27 22:11:05,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 22:11:05,287 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-27 22:11:05,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:11:05,293 INFO L225 Difference]: With dead ends: 523 [2020-10-27 22:11:05,293 INFO L226 Difference]: Without dead ends: 372 [2020-10-27 22:11:05,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-10-27 22:11:05,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-10-27 22:11:05,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 281. [2020-10-27 22:11:05,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-27 22:11:05,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 334 transitions. [2020-10-27 22:11:05,376 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 334 transitions. Word has length 71 [2020-10-27 22:11:05,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:11:05,377 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 334 transitions. [2020-10-27 22:11:05,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 22:11:05,377 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 334 transitions. [2020-10-27 22:11:05,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-27 22:11:05,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:11:05,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:11:05,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:11:05,382 INFO L429 AbstractCegarLoop]: === Iteration 6 === [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 22:11:05,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:11:05,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1904308748, now seen corresponding path program 1 times [2020-10-27 22:11:05,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:11:05,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1077172297] [2020-10-27 22:11:05,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:11:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 22:11:05,437 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 22:11:05,437 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 22:11:05,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 22:11:05,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 10:11:05 BoogieIcfgContainer [2020-10-27 22:11:05,485 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 22:11:05,489 INFO L168 Benchmark]: Toolchain (without parser) took 36758.64 ms. Allocated memory was 151.0 MB in the beginning and 550.5 MB in the end (delta: 399.5 MB). Free memory was 125.5 MB in the beginning and 472.5 MB in the end (delta: -347.1 MB). Peak memory consumption was 53.4 MB. Max. memory is 8.0 GB. [2020-10-27 22:11:05,491 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 123.8 MB in the end (delta: 80.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 22:11:05,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.32 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 104.2 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-27 22:11:05,496 INFO L168 Benchmark]: Boogie Preprocessor took 89.82 ms. Allocated memory is still 151.0 MB. Free memory was 104.2 MB in the beginning and 100.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 22:11:05,496 INFO L168 Benchmark]: RCFGBuilder took 1810.76 ms. Allocated memory is still 151.0 MB. Free memory was 100.3 MB in the beginning and 130.2 MB in the end (delta: -29.8 MB). Peak memory consumption was 56.0 MB. Max. memory is 8.0 GB. [2020-10-27 22:11:05,498 INFO L168 Benchmark]: TraceAbstraction took 34142.22 ms. Allocated memory was 151.0 MB in the beginning and 550.5 MB in the end (delta: 399.5 MB). Free memory was 129.6 MB in the beginning and 472.5 MB in the end (delta: -342.9 MB). Peak memory consumption was 56.6 MB. Max. memory is 8.0 GB. [2020-10-27 22:11:05,506 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 123.8 MB in the end (delta: 80.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 705.32 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 104.2 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 89.82 ms. Allocated memory is still 151.0 MB. Free memory was 104.2 MB in the beginning and 100.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1810.76 ms. Allocated memory is still 151.0 MB. Free memory was 100.3 MB in the beginning and 130.2 MB in the end (delta: -29.8 MB). Peak memory consumption was 56.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 34142.22 ms. Allocated memory was 151.0 MB in the beginning and 550.5 MB in the end (delta: 399.5 MB). Free memory was 129.6 MB in the beginning and 472.5 MB in the end (delta: -342.9 MB). Peak memory consumption was 56.6 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: [L133] int pumpRunning = 0; [L134] int systemActive = 1; [L460] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L727] int cleanupTimeShifts = 4; [L823] int waterLevel = 1; [L824] int methaneLevelCritical = 0; [L800] int retValue_acc ; [L801] int tmp ; [L805] FCALL select_helpers() [L806] FCALL select_features() [L807] CALL, EXPR valid_product() [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); [L807] RET, EXPR valid_product() [L807] tmp = valid_product() [L809] COND TRUE \read(tmp) [L811] FCALL setup() [L812] CALL runTest() [L794] CALL test() [L661] int splverifierCounter ; [L662] int tmp ; [L663] int tmp___0 ; [L664] int tmp___1 ; [L665] int tmp___2 ; [L668] splverifierCounter = 0 [L670] COND TRUE 1 [L672] COND TRUE splverifierCounter < 4 [L678] tmp = __VERIFIER_nondet_int() [L680] COND TRUE \read(tmp) [L682] CALL waterRise() [L841] COND TRUE waterLevel < 2 [L842] waterLevel = waterLevel + 1 [L682] RET waterRise() [L688] tmp___0 = __VERIFIER_nondet_int() [L690] COND FALSE !(\read(tmp___0)) [L698] tmp___2 = __VERIFIER_nondet_int() [L700] COND FALSE !(\read(tmp___2)) [L706] tmp___1 = __VERIFIER_nondet_int() [L708] COND TRUE \read(tmp___1) [L715] CALL timeShift() [L140] COND FALSE !(\read(pumpRunning)) [L147] COND TRUE \read(systemActive) [L149] CALL processEnvironment() [L169] int tmp ; [L172] COND FALSE !(\read(pumpRunning)) [L187] FCALL processEnvironment__wrappee__methaneQuery() [L149] RET processEnvironment() [L155] CALL __utac_acc__Specification3_spec__1() [L93] int tmp ; [L94] int tmp___0 ; [L95] int tmp___1 ; [L99] CALL, EXPR isMethaneLevelCritical() [L862] int retValue_acc ; [L865] retValue_acc = methaneLevelCritical [L866] return (retValue_acc); [L99] RET, EXPR isMethaneLevelCritical() [L99] tmp = isMethaneLevelCritical() [L101] COND FALSE !(\read(tmp)) [L105] CALL, EXPR getWaterLevel() [L894] int retValue_acc ; [L897] retValue_acc = waterLevel [L898] return (retValue_acc); [L105] RET, EXPR getWaterLevel() [L105] tmp___0 = getWaterLevel() [L107] COND TRUE tmp___0 == 2 [L109] CALL, EXPR isPumpRunning() [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); [L109] RET, EXPR isPumpRunning() [L109] tmp___1 = isPumpRunning() [L111] COND FALSE !(\read(tmp___1)) [L115] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product14.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 230 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 34.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 15.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 542 SDtfs, 773 SDslu, 428 SDs, 0 SdLazy, 1923 SolverSat, 553 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 100 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 8.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=281occurred in iteration=5, 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, 5 MinimizatonAttempts, 223 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 17.2s InterpolantComputationTime, 375 NumberOfCodeBlocks, 375 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 299 ConstructedInterpolants, 0 QuantifiedInterpolants, 91298 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...