/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 05:55:06,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 05:55:06,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 05:55:06,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 05:55:06,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 05:55:06,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 05:55:06,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 05:55:06,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 05:55:06,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 05:55:06,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 05:55:06,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 05:55:06,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 05:55:06,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 05:55:06,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 05:55:06,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 05:55:06,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 05:55:06,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 05:55:06,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 05:55:06,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 05:55:06,564 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 05:55:06,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 05:55:06,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 05:55:06,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 05:55:06,569 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 05:55:06,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 05:55:06,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 05:55:06,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 05:55:06,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 05:55:06,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 05:55:06,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 05:55:06,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 05:55:06,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 05:55:06,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 05:55:06,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 05:55:06,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 05:55:06,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 05:55:06,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 05:55:06,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 05:55:06,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 05:55:06,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 05:55:06,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 05:55:06,586 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 05:55:06,615 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 05:55:06,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 05:55:06,616 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 05:55:06,616 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 05:55:06,617 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 05:55:06,617 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 05:55:06,617 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 05:55:06,617 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 05:55:06,617 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 05:55:06,617 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 05:55:06,618 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 05:55:06,618 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 05:55:06,619 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 05:55:06,619 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 05:55:06,619 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 05:55:06,619 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 05:55:06,619 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 05:55:06,619 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 05:55:06,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 05:55:06,620 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 05:55:06,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 05:55:06,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 05:55:06,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 05:55:06,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 05:55:06,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 05:55:06,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 05:55:06,621 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 05:55:06,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 05:55:06,621 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 05:55:06,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 05:55:06,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 05:55:06,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 05:55:06,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 05:55:06,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 05:55:06,622 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 05:55:06,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 05:55:06,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 05:55:06,623 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 05:55:06,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 05:55:06,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 05:55:06,623 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 05:55:06,623 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 05:55:06,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 05:55:06,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 05:55:06,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 05:55:06,897 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 05:55:06,898 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 05:55:06,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2023-04-01 05:55:08,096 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 05:55:08,322 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 05:55:08,323 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2023-04-01 05:55:08,332 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fc6b1271/64df3989e17d4a3f92965143a28bc9b0/FLAG8d07790ef [2023-04-01 05:55:08,344 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fc6b1271/64df3989e17d4a3f92965143a28bc9b0 [2023-04-01 05:55:08,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 05:55:08,348 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 05:55:08,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 05:55:08,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 05:55:08,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 05:55:08,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 05:55:08" (1/1) ... [2023-04-01 05:55:08,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55f45322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:08, skipping insertion in model container [2023-04-01 05:55:08,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 05:55:08" (1/1) ... [2023-04-01 05:55:08,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 05:55:08,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 05:55:08,665 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c[18430,18443] [2023-04-01 05:55:08,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 05:55:08,683 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 05:55:08,763 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c[18430,18443] [2023-04-01 05:55:08,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 05:55:08,784 INFO L208 MainTranslator]: Completed translation [2023-04-01 05:55:08,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:08 WrapperNode [2023-04-01 05:55:08,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 05:55:08,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 05:55:08,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 05:55:08,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 05:55:08,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:08" (1/1) ... [2023-04-01 05:55:08,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:08" (1/1) ... [2023-04-01 05:55:08,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:08" (1/1) ... [2023-04-01 05:55:08,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:08" (1/1) ... [2023-04-01 05:55:08,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:08" (1/1) ... [2023-04-01 05:55:08,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:08" (1/1) ... [2023-04-01 05:55:08,837 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:08" (1/1) ... [2023-04-01 05:55:08,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:08" (1/1) ... [2023-04-01 05:55:08,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 05:55:08,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 05:55:08,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 05:55:08,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 05:55:08,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:08" (1/1) ... [2023-04-01 05:55:08,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 05:55:08,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 05:55:08,874 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 05:55:08,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 05:55:08,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 05:55:08,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 05:55:08,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 05:55:08,912 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 05:55:08,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2023-04-01 05:55:08,914 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-01 05:55:08,914 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-01 05:55:08,914 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 05:55:08,914 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-01 05:55:08,914 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 05:55:08,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 05:55:08,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 05:55:08,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 05:55:08,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 05:55:08,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 05:55:08,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 05:55:08,915 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-01 05:55:08,915 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-01 05:55:08,915 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-01 05:55:08,915 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-01 05:55:08,915 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-01 05:55:08,915 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-01 05:55:08,915 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-01 05:55:08,916 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-01 05:55:08,916 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-01 05:55:08,916 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-01 05:55:08,916 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-01 05:55:08,916 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 05:55:08,916 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 05:55:08,916 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 05:55:08,916 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 05:55:08,916 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 05:55:08,917 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-01 05:55:08,917 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-01 05:55:08,917 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-01 05:55:08,917 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-01 05:55:08,917 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-01 05:55:08,917 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-01 05:55:08,917 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-01 05:55:08,917 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-01 05:55:08,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 05:55:08,918 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 05:55:08,918 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 05:55:08,918 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 05:55:08,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 05:55:08,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 05:55:08,920 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 05:55:08,920 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 05:55:08,920 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-01 05:55:08,920 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-01 05:55:08,920 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2023-04-01 05:55:08,921 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-01 05:55:08,921 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-01 05:55:08,921 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-01 05:55:08,921 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-01 05:55:08,921 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-01 05:55:08,922 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-01 05:55:08,922 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 05:55:08,922 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 05:55:08,923 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-01 05:55:08,923 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 05:55:08,923 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 05:55:08,923 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 05:55:08,923 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 05:55:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 05:55:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 05:55:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 05:55:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 05:55:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 05:55:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 05:55:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 05:55:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 05:55:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 05:55:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 05:55:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 05:55:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 05:55:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 05:55:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 05:55:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 05:55:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-01 05:55:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-01 05:55:08,927 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-01 05:55:08,927 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-01 05:55:08,927 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-01 05:55:08,927 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-01 05:55:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-01 05:55:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-01 05:55:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-01 05:55:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-01 05:55:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-01 05:55:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-01 05:55:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 05:55:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-01 05:55:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 05:55:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 05:55:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 05:55:09,121 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 05:55:09,123 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 05:55:09,752 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 05:55:09,856 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 05:55:09,856 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-01 05:55:09,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 05:55:09 BoogieIcfgContainer [2023-04-01 05:55:09,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 05:55:09,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 05:55:09,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 05:55:09,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 05:55:09,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 05:55:08" (1/3) ... [2023-04-01 05:55:09,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f161191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 05:55:09, skipping insertion in model container [2023-04-01 05:55:09,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:08" (2/3) ... [2023-04-01 05:55:09,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f161191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 05:55:09, skipping insertion in model container [2023-04-01 05:55:09,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 05:55:09" (3/3) ... [2023-04-01 05:55:09,872 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product49.cil.c [2023-04-01 05:55:09,887 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 05:55:09,887 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 05:55:09,938 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 05:55:09,945 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1b4268b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 05:55:09,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 05:55:09,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 64 states have (on average 1.25) internal successors, (80), 76 states have internal predecessors, (80), 45 states have call successors, (45), 28 states have call predecessors, (45), 28 states have return successors, (45), 41 states have call predecessors, (45), 45 states have call successors, (45) [2023-04-01 05:55:09,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-01 05:55:09,959 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:55:09,960 INFO L195 NwaCegarLoop]: 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] [2023-04-01 05:55:09,962 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:55:09,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:55:09,969 INFO L85 PathProgramCache]: Analyzing trace with hash -538125009, now seen corresponding path program 1 times [2023-04-01 05:55:09,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:55:09,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445210343] [2023-04-01 05:55:09,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:55:09,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:55:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:55:10,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:55:10,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:55:10,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445210343] [2023-04-01 05:55:10,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445210343] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:55:10,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:55:10,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 05:55:10,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457951810] [2023-04-01 05:55:10,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:55:10,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 05:55:10,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:55:10,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 05:55:10,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 05:55:10,260 INFO L87 Difference]: Start difference. First operand has 141 states, 64 states have (on average 1.25) internal successors, (80), 76 states have internal predecessors, (80), 45 states have call successors, (45), 28 states have call predecessors, (45), 28 states have return successors, (45), 41 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 05:55:10,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:55:10,331 INFO L93 Difference]: Finished difference Result 211 states and 252 transitions. [2023-04-01 05:55:10,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 05:55:10,334 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2023-04-01 05:55:10,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:55:10,341 INFO L225 Difference]: With dead ends: 211 [2023-04-01 05:55:10,342 INFO L226 Difference]: Without dead ends: 106 [2023-04-01 05:55:10,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 05:55:10,348 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 05:55:10,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 05:55:10,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-04-01 05:55:10,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2023-04-01 05:55:10,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 54 states have (on average 1.2037037037037037) internal successors, (65), 63 states have internal predecessors, (65), 30 states have call successors, (30), 26 states have call predecessors, (30), 21 states have return successors, (25), 21 states have call predecessors, (25), 25 states have call successors, (25) [2023-04-01 05:55:10,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 120 transitions. [2023-04-01 05:55:10,392 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 120 transitions. Word has length 42 [2023-04-01 05:55:10,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:55:10,393 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 120 transitions. [2023-04-01 05:55:10,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 05:55:10,393 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 120 transitions. [2023-04-01 05:55:10,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-01 05:55:10,396 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:55:10,396 INFO L195 NwaCegarLoop]: 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] [2023-04-01 05:55:10,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 05:55:10,396 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:55:10,397 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:55:10,397 INFO L85 PathProgramCache]: Analyzing trace with hash -851475149, now seen corresponding path program 1 times [2023-04-01 05:55:10,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:55:10,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171955671] [2023-04-01 05:55:10,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:55:10,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:55:10,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:55:10,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:55:10,526 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:55:10,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171955671] [2023-04-01 05:55:10,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171955671] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:55:10,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:55:10,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 05:55:10,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785014865] [2023-04-01 05:55:10,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:55:10,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 05:55:10,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:55:10,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 05:55:10,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 05:55:10,530 INFO L87 Difference]: Start difference. First operand 106 states and 120 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 05:55:10,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:55:10,588 INFO L93 Difference]: Finished difference Result 169 states and 191 transitions. [2023-04-01 05:55:10,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 05:55:10,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2023-04-01 05:55:10,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:55:10,591 INFO L225 Difference]: With dead ends: 169 [2023-04-01 05:55:10,591 INFO L226 Difference]: Without dead ends: 98 [2023-04-01 05:55:10,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 05:55:10,593 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 7 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 05:55:10,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 178 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 05:55:10,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-04-01 05:55:10,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-04-01 05:55:10,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 49 states have (on average 1.2040816326530612) internal successors, (59), 58 states have internal predecessors, (59), 27 states have call successors, (27), 25 states have call predecessors, (27), 21 states have return successors, (23), 19 states have call predecessors, (23), 23 states have call successors, (23) [2023-04-01 05:55:10,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 109 transitions. [2023-04-01 05:55:10,604 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 109 transitions. Word has length 43 [2023-04-01 05:55:10,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:55:10,604 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 109 transitions. [2023-04-01 05:55:10,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 05:55:10,605 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 109 transitions. [2023-04-01 05:55:10,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-04-01 05:55:10,606 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:55:10,606 INFO L195 NwaCegarLoop]: 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] [2023-04-01 05:55:10,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 05:55:10,607 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:55:10,607 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:55:10,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1124974053, now seen corresponding path program 1 times [2023-04-01 05:55:10,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:55:10,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038198283] [2023-04-01 05:55:10,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:55:10,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:55:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:55:10,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:55:10,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:55:10,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038198283] [2023-04-01 05:55:10,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038198283] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:55:10,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:55:10,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 05:55:10,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379173139] [2023-04-01 05:55:10,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:55:10,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 05:55:10,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:55:10,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 05:55:10,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-01 05:55:10,827 INFO L87 Difference]: Start difference. First operand 98 states and 109 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-01 05:55:11,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:55:11,057 INFO L93 Difference]: Finished difference Result 174 states and 197 transitions. [2023-04-01 05:55:11,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 05:55:11,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 45 [2023-04-01 05:55:11,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:55:11,064 INFO L225 Difference]: With dead ends: 174 [2023-04-01 05:55:11,064 INFO L226 Difference]: Without dead ends: 98 [2023-04-01 05:55:11,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-01 05:55:11,071 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 146 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-01 05:55:11,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 259 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-01 05:55:11,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-04-01 05:55:11,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-04-01 05:55:11,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 49 states have (on average 1.183673469387755) internal successors, (58), 57 states have internal predecessors, (58), 27 states have call successors, (27), 25 states have call predecessors, (27), 21 states have return successors, (23), 19 states have call predecessors, (23), 23 states have call successors, (23) [2023-04-01 05:55:11,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 108 transitions. [2023-04-01 05:55:11,091 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 108 transitions. Word has length 45 [2023-04-01 05:55:11,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:55:11,091 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 108 transitions. [2023-04-01 05:55:11,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-01 05:55:11,092 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 108 transitions. [2023-04-01 05:55:11,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-04-01 05:55:11,103 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:55:11,103 INFO L195 NwaCegarLoop]: 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] [2023-04-01 05:55:11,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 05:55:11,104 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:55:11,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:55:11,104 INFO L85 PathProgramCache]: Analyzing trace with hash -372504766, now seen corresponding path program 1 times [2023-04-01 05:55:11,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:55:11,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779201417] [2023-04-01 05:55:11,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:55:11,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:55:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:55:11,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:55:11,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:55:11,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779201417] [2023-04-01 05:55:11,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779201417] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:55:11,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:55:11,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 05:55:11,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132365000] [2023-04-01 05:55:11,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:55:11,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 05:55:11,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:55:11,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 05:55:11,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 05:55:11,305 INFO L87 Difference]: Start difference. First operand 98 states and 108 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 5 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-01 05:55:11,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:55:11,639 INFO L93 Difference]: Finished difference Result 256 states and 297 transitions. [2023-04-01 05:55:11,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 05:55:11,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 5 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) Word has length 58 [2023-04-01 05:55:11,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:55:11,645 INFO L225 Difference]: With dead ends: 256 [2023-04-01 05:55:11,646 INFO L226 Difference]: Without dead ends: 180 [2023-04-01 05:55:11,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-04-01 05:55:11,647 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 128 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-01 05:55:11,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 136 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-01 05:55:11,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-04-01 05:55:11,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 165. [2023-04-01 05:55:11,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 88 states have (on average 1.1477272727272727) internal successors, (101), 95 states have internal predecessors, (101), 38 states have call successors, (38), 37 states have call predecessors, (38), 38 states have return successors, (41), 37 states have call predecessors, (41), 34 states have call successors, (41) [2023-04-01 05:55:11,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 180 transitions. [2023-04-01 05:55:11,672 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 180 transitions. Word has length 58 [2023-04-01 05:55:11,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:55:11,673 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 180 transitions. [2023-04-01 05:55:11,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 5 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-01 05:55:11,673 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 180 transitions. [2023-04-01 05:55:11,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-01 05:55:11,674 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:55:11,674 INFO L195 NwaCegarLoop]: 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] [2023-04-01 05:55:11,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 05:55:11,675 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:55:11,675 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:55:11,675 INFO L85 PathProgramCache]: Analyzing trace with hash 323217102, now seen corresponding path program 1 times [2023-04-01 05:55:11,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:55:11,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813651334] [2023-04-01 05:55:11,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:55:11,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:55:11,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:55:11,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:55:11,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:55:11,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813651334] [2023-04-01 05:55:11,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813651334] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:55:11,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:55:11,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 05:55:11,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068872422] [2023-04-01 05:55:11,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:55:11,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 05:55:11,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:55:11,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 05:55:11,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 05:55:11,839 INFO L87 Difference]: Start difference. First operand 165 states and 180 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-01 05:55:12,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:55:12,007 INFO L93 Difference]: Finished difference Result 437 states and 493 transitions. [2023-04-01 05:55:12,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 05:55:12,008 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 67 [2023-04-01 05:55:12,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:55:12,011 INFO L225 Difference]: With dead ends: 437 [2023-04-01 05:55:12,012 INFO L226 Difference]: Without dead ends: 294 [2023-04-01 05:55:12,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-01 05:55:12,013 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 72 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 05:55:12,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 389 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 05:55:12,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-04-01 05:55:12,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 284. [2023-04-01 05:55:12,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 155 states have (on average 1.1290322580645162) internal successors, (175), 166 states have internal predecessors, (175), 62 states have call successors, (62), 60 states have call predecessors, (62), 66 states have return successors, (72), 64 states have call predecessors, (72), 58 states have call successors, (72) [2023-04-01 05:55:12,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 309 transitions. [2023-04-01 05:55:12,047 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 309 transitions. Word has length 67 [2023-04-01 05:55:12,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:55:12,047 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 309 transitions. [2023-04-01 05:55:12,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-01 05:55:12,048 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 309 transitions. [2023-04-01 05:55:12,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-01 05:55:12,049 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:55:12,049 INFO L195 NwaCegarLoop]: 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] [2023-04-01 05:55:12,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 05:55:12,049 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:55:12,049 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:55:12,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1665252207, now seen corresponding path program 1 times [2023-04-01 05:55:12,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:55:12,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399217974] [2023-04-01 05:55:12,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:55:12,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:55:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:55:12,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:55:12,425 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:55:12,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399217974] [2023-04-01 05:55:12,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399217974] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:55:12,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:55:12,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-01 05:55:12,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726091838] [2023-04-01 05:55:12,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:55:12,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-01 05:55:12,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:55:12,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-01 05:55:12,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-01 05:55:12,428 INFO L87 Difference]: Start difference. First operand 284 states and 309 transitions. Second operand has 12 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 4 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-04-01 05:55:12,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:55:12,837 INFO L93 Difference]: Finished difference Result 775 states and 869 transitions. [2023-04-01 05:55:12,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-01 05:55:12,837 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 4 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) Word has length 70 [2023-04-01 05:55:12,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:55:12,841 INFO L225 Difference]: With dead ends: 775 [2023-04-01 05:55:12,842 INFO L226 Difference]: Without dead ends: 513 [2023-04-01 05:55:12,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2023-04-01 05:55:12,845 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 114 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-01 05:55:12,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 775 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-01 05:55:12,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2023-04-01 05:55:12,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 499. [2023-04-01 05:55:12,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 286 states have (on average 1.1398601398601398) internal successors, (326), 302 states have internal predecessors, (326), 105 states have call successors, (105), 103 states have call predecessors, (105), 107 states have return successors, (127), 107 states have call predecessors, (127), 101 states have call successors, (127) [2023-04-01 05:55:12,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 558 transitions. [2023-04-01 05:55:12,901 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 558 transitions. Word has length 70 [2023-04-01 05:55:12,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:55:12,902 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 558 transitions. [2023-04-01 05:55:12,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 4 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-04-01 05:55:12,902 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 558 transitions. [2023-04-01 05:55:12,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-01 05:55:12,903 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:55:12,904 INFO L195 NwaCegarLoop]: 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] [2023-04-01 05:55:12,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 05:55:12,904 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:55:12,904 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:55:12,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1774718413, now seen corresponding path program 1 times [2023-04-01 05:55:12,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:55:12,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996162746] [2023-04-01 05:55:12,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:55:12,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:55:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:55:13,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:55:13,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:55:13,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996162746] [2023-04-01 05:55:13,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996162746] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:55:13,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:55:13,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 05:55:13,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444693950] [2023-04-01 05:55:13,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:55:13,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 05:55:13,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:55:13,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 05:55:13,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-01 05:55:13,085 INFO L87 Difference]: Start difference. First operand 499 states and 558 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-01 05:55:13,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:55:13,404 INFO L93 Difference]: Finished difference Result 529 states and 599 transitions. [2023-04-01 05:55:13,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-01 05:55:13,405 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 70 [2023-04-01 05:55:13,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:55:13,409 INFO L225 Difference]: With dead ends: 529 [2023-04-01 05:55:13,409 INFO L226 Difference]: Without dead ends: 526 [2023-04-01 05:55:13,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-04-01 05:55:13,412 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 106 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-01 05:55:13,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 209 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-01 05:55:13,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-04-01 05:55:13,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 499. [2023-04-01 05:55:13,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 286 states have (on average 1.1293706293706294) internal successors, (323), 302 states have internal predecessors, (323), 105 states have call successors, (105), 103 states have call predecessors, (105), 107 states have return successors, (127), 107 states have call predecessors, (127), 101 states have call successors, (127) [2023-04-01 05:55:13,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 555 transitions. [2023-04-01 05:55:13,464 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 555 transitions. Word has length 70 [2023-04-01 05:55:13,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:55:13,465 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 555 transitions. [2023-04-01 05:55:13,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-01 05:55:13,465 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 555 transitions. [2023-04-01 05:55:13,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-04-01 05:55:13,467 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:55:13,467 INFO L195 NwaCegarLoop]: 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, 1, 1] [2023-04-01 05:55:13,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-01 05:55:13,468 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:55:13,468 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:55:13,468 INFO L85 PathProgramCache]: Analyzing trace with hash 2144589732, now seen corresponding path program 1 times [2023-04-01 05:55:13,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:55:13,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874240453] [2023-04-01 05:55:13,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:55:13,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:55:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 05:55:13,488 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 05:55:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 05:55:13,535 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 05:55:13,536 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 05:55:13,537 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 05:55:13,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-01 05:55:13,542 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 05:55:13,546 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 05:55:13,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 05:55:13 BoogieIcfgContainer [2023-04-01 05:55:13,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 05:55:13,608 INFO L158 Benchmark]: Toolchain (without parser) took 5260.63ms. Allocated memory was 196.1MB in the beginning and 251.7MB in the end (delta: 55.6MB). Free memory was 152.6MB in the beginning and 146.3MB in the end (delta: 6.3MB). Peak memory consumption was 62.8MB. Max. memory is 8.0GB. [2023-04-01 05:55:13,608 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 196.1MB. Free memory is still 153.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 05:55:13,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.33ms. Allocated memory is still 196.1MB. Free memory was 152.6MB in the beginning and 134.0MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-01 05:55:13,609 INFO L158 Benchmark]: Boogie Preprocessor took 58.52ms. Allocated memory is still 196.1MB. Free memory was 134.0MB in the beginning and 130.6MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-01 05:55:13,609 INFO L158 Benchmark]: RCFGBuilder took 1014.25ms. Allocated memory is still 196.1MB. Free memory was 130.5MB in the beginning and 125.2MB in the end (delta: 5.3MB). Peak memory consumption was 23.6MB. Max. memory is 8.0GB. [2023-04-01 05:55:13,609 INFO L158 Benchmark]: TraceAbstraction took 3741.19ms. Allocated memory was 196.1MB in the beginning and 251.7MB in the end (delta: 55.6MB). Free memory was 124.7MB in the beginning and 146.3MB in the end (delta: -21.6MB). Peak memory consumption was 33.9MB. Max. memory is 8.0GB. [2023-04-01 05:55:13,611 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 196.1MB. Free memory is still 153.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 434.33ms. Allocated memory is still 196.1MB. Free memory was 152.6MB in the beginning and 134.0MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 58.52ms. Allocated memory is still 196.1MB. Free memory was 134.0MB in the beginning and 130.6MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1014.25ms. Allocated memory is still 196.1MB. Free memory was 130.5MB in the beginning and 125.2MB in the end (delta: 5.3MB). Peak memory consumption was 23.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3741.19ms. Allocated memory was 196.1MB in the beginning and 251.7MB in the end (delta: 55.6MB). Free memory was 124.7MB in the beginning and 146.3MB in the end (delta: -21.6MB). Peak memory consumption was 33.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 960]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L79] int cleanupTimeShifts = 4; [L352] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L555] int pumpRunning = 0; [L556] int systemActive = 1; [L853] int waterLevel = 1; [L854] int methaneLevelCritical = 0; [L160] int retValue_acc ; [L161] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L165] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L166] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L167] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L843] int retValue_acc ; [L846] retValue_acc = 1 [L847] return (retValue_acc); [L167] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L167] tmp = valid_product() [L169] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L171] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L172] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L151] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L753] int splverifierCounter ; [L754] int tmp ; [L755] int tmp___0 ; [L756] int tmp___1 ; [L757] int tmp___2 ; [L760] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L762] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L764] COND TRUE splverifierCounter < 4 [L770] tmp = __VERIFIER_nondet_int() [L772] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L774] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L871] COND TRUE waterLevel < 2 [L872] waterLevel = waterLevel + 1 [L774] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L780] tmp___0 = __VERIFIER_nondet_int() [L782] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L784] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L883] COND FALSE !(\read(methaneLevelCritical)) [L886] methaneLevelCritical = 1 [L784] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L790] tmp___2 = __VERIFIER_nondet_int() [L792] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=52, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=-1, tmp___2=-2, waterLevel=2] [L805] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L562] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L569] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L571] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L617] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L620] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L635] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L591] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L594] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L596] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L714] int retValue_acc ; [L715] int tmp ; [L716] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L720] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L933] int retValue_acc ; [L936] COND FALSE !(waterLevel < 2) [L940] retValue_acc = 0 [L941] return (retValue_acc); [L720] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L720] tmp = isHighWaterSensorDry() [L722] COND FALSE !(\read(tmp)) [L725] tmp___0 = 1 [L727] retValue_acc = tmp___0 [L728] return (retValue_acc); [L596] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L596] tmp = isHighWaterLevel() [L598] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L600] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L645] pumpRunning = 1 [L600] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L635] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L571] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L577] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L54] int tmp ; [L55] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L59] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L892] int retValue_acc ; [L895] retValue_acc = methaneLevelCritical [L896] return (retValue_acc); [L59] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L59] tmp = isMethaneLevelCritical() [L61] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L63] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L669] int retValue_acc ; [L672] retValue_acc = pumpRunning [L673] return (retValue_acc); [L63] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L63] tmp___0 = isPumpRunning() [L65] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L67] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L960] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 184 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 597 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 573 mSDsluCounter, 2060 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1417 mSDsCounter, 228 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1518 IncrementalHoareTripleChecker+Invalid, 1746 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 228 mSolverCounterUnsat, 643 mSDtfsCounter, 1518 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=499occurred in iteration=6, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 66 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 468 NumberOfCodeBlocks, 468 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 388 ConstructedInterpolants, 0 QuantifiedInterpolants, 760 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2023-04-01 05:55:13,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...