./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_get.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_get.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cc093ebb342e6e2aeac5659b7fad110e8a742c2f2123ff4689086ab884a6098d --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 09:04:04,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 09:04:04,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 09:04:04,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 09:04:04,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 09:04:04,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 09:04:04,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 09:04:04,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 09:04:04,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 09:04:04,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 09:04:04,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 09:04:04,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 09:04:04,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 09:04:04,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 09:04:04,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 09:04:04,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 09:04:04,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 09:04:04,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 09:04:04,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 09:04:04,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 09:04:04,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 09:04:04,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 09:04:04,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 09:04:04,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 09:04:04,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 09:04:04,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 09:04:04,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 09:04:04,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 09:04:04,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 09:04:04,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 09:04:04,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 09:04:04,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 09:04:04,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 09:04:04,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 09:04:04,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 09:04:04,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 09:04:04,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 09:04:04,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 09:04:04,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 09:04:04,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 09:04:04,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 09:04:04,718 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 09:04:04,757 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 09:04:04,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 09:04:04,759 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 09:04:04,759 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 09:04:04,760 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 09:04:04,760 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 09:04:04,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 09:04:04,761 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 09:04:04,761 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 09:04:04,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 09:04:04,762 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 09:04:04,762 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 09:04:04,762 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 09:04:04,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 09:04:04,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 09:04:04,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 09:04:04,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 09:04:04,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 09:04:04,764 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 09:04:04,764 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 09:04:04,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 09:04:04,764 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 09:04:04,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 09:04:04,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 09:04:04,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 09:04:04,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 09:04:04,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:04:04,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 09:04:04,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 09:04:04,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 09:04:04,766 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 09:04:04,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 09:04:04,766 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 09:04:04,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 09:04:04,767 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 09:04:04,767 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 09:04:04,767 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 09:04:04,767 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc093ebb342e6e2aeac5659b7fad110e8a742c2f2123ff4689086ab884a6098d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 09:04:05,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 09:04:05,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 09:04:05,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 09:04:05,113 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 09:04:05,113 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 09:04:05,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_get.i [2023-08-30 09:04:06,388 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 09:04:06,904 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 09:04:06,905 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_get.i [2023-08-30 09:04:06,951 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0c1fe71d/afe43b5ef455444ca18e802aafeeee9b/FLAG091ca9681 [2023-08-30 09:04:06,972 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0c1fe71d/afe43b5ef455444ca18e802aafeeee9b [2023-08-30 09:04:06,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 09:04:06,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 09:04:06,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 09:04:06,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 09:04:06,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 09:04:06,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:04:06" (1/1) ... [2023-08-30 09:04:06,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72155a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:06, skipping insertion in model container [2023-08-30 09:04:06,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:04:06" (1/1) ... [2023-08-30 09:04:06,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 09:04:07,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 09:04:07,459 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_get.i[5469,5482] [2023-08-30 09:04:09,994 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 09:04:10,600 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 09:04:10,601 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 09:04:10,669 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:04:10,688 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 09:04:10,717 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_get.i[5469,5482] [2023-08-30 09:04:10,884 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 09:04:10,943 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 09:04:10,944 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 09:04:10,954 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:04:11,514 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:04:11,514 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:04:11,514 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:04:11,514 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:04:11,514 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:04:11,515 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:04:11,515 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:04:11,521 INFO L208 MainTranslator]: Completed translation [2023-08-30 09:04:11,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:11 WrapperNode [2023-08-30 09:04:11,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 09:04:11,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 09:04:11,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 09:04:11,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 09:04:11,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:11" (1/1) ... [2023-08-30 09:04:11,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:11" (1/1) ... [2023-08-30 09:04:11,788 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 54, statements flattened = 754 [2023-08-30 09:04:11,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 09:04:11,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 09:04:11,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 09:04:11,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 09:04:11,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:11" (1/1) ... [2023-08-30 09:04:11,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:11" (1/1) ... [2023-08-30 09:04:11,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:11" (1/1) ... [2023-08-30 09:04:11,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:11" (1/1) ... [2023-08-30 09:04:11,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:11" (1/1) ... [2023-08-30 09:04:11,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:11" (1/1) ... [2023-08-30 09:04:11,874 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:11" (1/1) ... [2023-08-30 09:04:11,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:11" (1/1) ... [2023-08-30 09:04:11,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 09:04:11,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 09:04:11,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 09:04:11,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 09:04:11,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:11" (1/1) ... [2023-08-30 09:04:11,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:04:11,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:04:11,934 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) [2023-08-30 09:04:11,961 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 [2023-08-30 09:04:11,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 09:04:11,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 09:04:11,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 09:04:11,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 09:04:11,977 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2023-08-30 09:04:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2023-08-30 09:04:11,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 09:04:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 09:04:11,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-30 09:04:11,978 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_get [2023-08-30 09:04:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_get [2023-08-30 09:04:11,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 09:04:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 09:04:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 09:04:11,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 09:04:11,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-30 09:04:11,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 09:04:11,982 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 09:04:12,562 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 09:04:12,567 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 09:04:13,440 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 09:04:13,456 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 09:04:13,457 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2023-08-30 09:04:13,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:04:13 BoogieIcfgContainer [2023-08-30 09:04:13,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 09:04:13,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 09:04:13,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 09:04:13,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 09:04:13,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 09:04:06" (1/3) ... [2023-08-30 09:04:13,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14fa283b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:04:13, skipping insertion in model container [2023-08-30 09:04:13,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:11" (2/3) ... [2023-08-30 09:04:13,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14fa283b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:04:13, skipping insertion in model container [2023-08-30 09:04:13,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:04:13" (3/3) ... [2023-08-30 09:04:13,469 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_get.i [2023-08-30 09:04:13,476 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 09:04:13,484 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 09:04:13,485 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-08-30 09:04:13,485 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 09:04:13,652 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 09:04:13,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 804 places, 852 transitions, 1720 flow [2023-08-30 09:04:13,907 INFO L130 PetriNetUnfolder]: 55/850 cut-off events. [2023-08-30 09:04:13,908 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 09:04:13,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 859 conditions, 850 events. 55/850 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1184 event pairs, 0 based on Foata normal form. 0/767 useless extension candidates. Maximal degree in co-relation 683. Up to 9 conditions per place. [2023-08-30 09:04:13,917 INFO L82 GeneralOperation]: Start removeDead. Operand has 804 places, 852 transitions, 1720 flow [2023-08-30 09:04:13,926 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 794 places, 842 transitions, 1693 flow [2023-08-30 09:04:13,929 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 09:04:13,943 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 794 places, 842 transitions, 1693 flow [2023-08-30 09:04:13,946 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 794 places, 842 transitions, 1693 flow [2023-08-30 09:04:13,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 794 places, 842 transitions, 1693 flow [2023-08-30 09:04:14,099 INFO L130 PetriNetUnfolder]: 55/842 cut-off events. [2023-08-30 09:04:14,099 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 09:04:14,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 850 conditions, 842 events. 55/842 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1109 event pairs, 0 based on Foata normal form. 0/759 useless extension candidates. Maximal degree in co-relation 683. Up to 9 conditions per place. [2023-08-30 09:04:14,110 INFO L119 LiptonReduction]: Number of co-enabled transitions 14236 [2023-08-30 09:05:37,480 WARN L222 SmtUtils]: Spent 19.60s on a formula simplification that was a NOOP. DAG size: 489 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:05:47,218 WARN L222 SmtUtils]: Spent 9.72s on a formula simplification that was a NOOP. DAG size: 435 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:06:22,232 WARN L222 SmtUtils]: Spent 35.01s on a formula simplification that was a NOOP. DAG size: 489 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:06:51,778 WARN L222 SmtUtils]: Spent 29.53s on a formula simplification that was a NOOP. DAG size: 435 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:07:53,146 WARN L222 SmtUtils]: Spent 58.97s on a formula simplification. DAG size of input: 583 DAG size of output: 581 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:08:22,002 WARN L222 SmtUtils]: Spent 28.85s on a formula simplification that was a NOOP. DAG size: 581 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:09:23,030 WARN L222 SmtUtils]: Spent 1.02m on a formula simplification. DAG size of input: 583 DAG size of output: 581 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:09:53,688 WARN L222 SmtUtils]: Spent 30.66s on a formula simplification that was a NOOP. DAG size: 581 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:10:06,926 INFO L134 LiptonReduction]: Checked pairs total: 10881 [2023-08-30 09:10:06,927 INFO L136 LiptonReduction]: Total number of compositions: 1018 [2023-08-30 09:10:06,939 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 09:10:06,943 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=PETRI_NET, 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;@7a981a10, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 09:10:06,943 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-08-30 09:10:06,952 INFO L130 PetriNetUnfolder]: 2/5 cut-off events. [2023-08-30 09:10:06,952 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:10:06,952 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:10:06,953 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 09:10:06,953 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:10:06,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:10:06,958 INFO L85 PathProgramCache]: Analyzing trace with hash 3183669, now seen corresponding path program 1 times [2023-08-30 09:10:06,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:10:06,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847343133] [2023-08-30 09:10:06,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:06,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:10:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:07,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:07,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:10:07,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847343133] [2023-08-30 09:10:07,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847343133] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:10:07,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:10:07,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:10:07,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853104828] [2023-08-30 09:10:07,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:10:07,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 09:10:07,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:10:07,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 09:10:07,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 09:10:07,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 800 out of 1870 [2023-08-30 09:10:07,559 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 74 transitions, 157 flow. Second operand has 2 states, 2 states have (on average 801.5) internal successors, (1603), 2 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:07,559 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:10:07,559 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 800 of 1870 [2023-08-30 09:10:07,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:10:07,793 INFO L130 PetriNetUnfolder]: 88/181 cut-off events. [2023-08-30 09:10:07,793 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2023-08-30 09:10:07,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 181 events. 88/181 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 585 event pairs, 78 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 248. Up to 182 conditions per place. [2023-08-30 09:10:07,796 INFO L137 encePairwiseOnDemand]: 1837/1870 looper letters, 38 selfloop transitions, 0 changer transitions 3/41 dead transitions. [2023-08-30 09:10:07,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 41 transitions, 173 flow [2023-08-30 09:10:07,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 09:10:07,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 09:10:07,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1674 transitions. [2023-08-30 09:10:07,821 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4475935828877005 [2023-08-30 09:10:07,823 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1674 transitions. [2023-08-30 09:10:07,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1674 transitions. [2023-08-30 09:10:07,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:10:07,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1674 transitions. [2023-08-30 09:10:07,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 837.0) internal successors, (1674), 2 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:07,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1870.0) internal successors, (5610), 3 states have internal predecessors, (5610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:07,863 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1870.0) internal successors, (5610), 3 states have internal predecessors, (5610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:07,865 INFO L175 Difference]: Start difference. First operand has 59 places, 74 transitions, 157 flow. Second operand 2 states and 1674 transitions. [2023-08-30 09:10:07,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 41 transitions, 173 flow [2023-08-30 09:10:07,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 41 transitions, 168 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 09:10:07,870 INFO L231 Difference]: Finished difference. Result has 36 places, 38 transitions, 80 flow [2023-08-30 09:10:07,872 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1870, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=80, PETRI_PLACES=36, PETRI_TRANSITIONS=38} [2023-08-30 09:10:07,875 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -23 predicate places. [2023-08-30 09:10:07,875 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 38 transitions, 80 flow [2023-08-30 09:10:07,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 801.5) internal successors, (1603), 2 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:07,876 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:10:07,876 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 09:10:07,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 09:10:07,877 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:10:07,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:10:07,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1235226243, now seen corresponding path program 1 times [2023-08-30 09:10:07,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:10:07,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508191956] [2023-08-30 09:10:07,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:07,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:10:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:08,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:08,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:10:08,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508191956] [2023-08-30 09:10:08,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508191956] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:10:08,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:10:08,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:10:08,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101892303] [2023-08-30 09:10:08,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:10:08,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:10:08,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:10:08,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:10:08,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:10:08,230 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 790 out of 1870 [2023-08-30 09:10:08,233 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 38 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 791.6666666666666) internal successors, (2375), 3 states have internal predecessors, (2375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:08,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:10:08,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 790 of 1870 [2023-08-30 09:10:08,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:10:08,553 INFO L130 PetriNetUnfolder]: 111/233 cut-off events. [2023-08-30 09:10:08,553 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-30 09:10:08,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 233 events. 111/233 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 786 event pairs, 102 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 480. Up to 120 conditions per place. [2023-08-30 09:10:08,555 INFO L137 encePairwiseOnDemand]: 1864/1870 looper letters, 45 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2023-08-30 09:10:08,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 49 transitions, 204 flow [2023-08-30 09:10:08,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:10:08,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:10:08,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2421 transitions. [2023-08-30 09:10:08,562 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43155080213903746 [2023-08-30 09:10:08,562 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2421 transitions. [2023-08-30 09:10:08,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2421 transitions. [2023-08-30 09:10:08,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:10:08,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2421 transitions. [2023-08-30 09:10:08,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 807.0) internal successors, (2421), 3 states have internal predecessors, (2421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:08,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1870.0) internal successors, (7480), 4 states have internal predecessors, (7480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:08,582 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1870.0) internal successors, (7480), 4 states have internal predecessors, (7480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:08,583 INFO L175 Difference]: Start difference. First operand has 36 places, 38 transitions, 80 flow. Second operand 3 states and 2421 transitions. [2023-08-30 09:10:08,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 49 transitions, 204 flow [2023-08-30 09:10:08,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 49 transitions, 204 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 09:10:08,584 INFO L231 Difference]: Finished difference. Result has 33 places, 36 transitions, 84 flow [2023-08-30 09:10:08,585 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1870, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=33, PETRI_TRANSITIONS=36} [2023-08-30 09:10:08,585 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -26 predicate places. [2023-08-30 09:10:08,586 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 36 transitions, 84 flow [2023-08-30 09:10:08,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 791.6666666666666) internal successors, (2375), 3 states have internal predecessors, (2375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:08,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:10:08,588 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 09:10:08,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 09:10:08,588 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:10:08,589 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:10:08,589 INFO L85 PathProgramCache]: Analyzing trace with hash 362706621, now seen corresponding path program 1 times [2023-08-30 09:10:08,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:10:08,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922124145] [2023-08-30 09:10:08,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:08,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:10:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:08,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:08,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:10:08,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922124145] [2023-08-30 09:10:08,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922124145] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:10:08,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:10:08,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 09:10:08,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003032596] [2023-08-30 09:10:08,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:10:08,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:10:08,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:10:08,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:10:08,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:10:08,829 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 793 out of 1870 [2023-08-30 09:10:08,832 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 36 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 795.0) internal successors, (2385), 3 states have internal predecessors, (2385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:08,832 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:10:08,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 793 of 1870 [2023-08-30 09:10:08,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:10:09,170 INFO L130 PetriNetUnfolder]: 111/234 cut-off events. [2023-08-30 09:10:09,170 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-30 09:10:09,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 234 events. 111/234 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 793 event pairs, 102 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 486. Up to 233 conditions per place. [2023-08-30 09:10:09,172 INFO L137 encePairwiseOnDemand]: 1865/1870 looper letters, 34 selfloop transitions, 3 changer transitions 0/37 dead transitions. [2023-08-30 09:10:09,172 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 37 transitions, 160 flow [2023-08-30 09:10:09,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:10:09,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:10:09,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2418 transitions. [2023-08-30 09:10:09,179 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4310160427807487 [2023-08-30 09:10:09,179 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2418 transitions. [2023-08-30 09:10:09,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2418 transitions. [2023-08-30 09:10:09,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:10:09,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2418 transitions. [2023-08-30 09:10:09,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 806.0) internal successors, (2418), 3 states have internal predecessors, (2418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:09,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1870.0) internal successors, (7480), 4 states have internal predecessors, (7480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:09,199 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1870.0) internal successors, (7480), 4 states have internal predecessors, (7480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:09,199 INFO L175 Difference]: Start difference. First operand has 33 places, 36 transitions, 84 flow. Second operand 3 states and 2418 transitions. [2023-08-30 09:10:09,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 37 transitions, 160 flow [2023-08-30 09:10:09,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 09:10:09,201 INFO L231 Difference]: Finished difference. Result has 34 places, 37 transitions, 93 flow [2023-08-30 09:10:09,201 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1870, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=34, PETRI_TRANSITIONS=37} [2023-08-30 09:10:09,202 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -25 predicate places. [2023-08-30 09:10:09,202 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 37 transitions, 93 flow [2023-08-30 09:10:09,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 795.0) internal successors, (2385), 3 states have internal predecessors, (2385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:09,203 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:10:09,204 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:10:09,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 09:10:09,204 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_changeErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:10:09,205 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:10:09,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1242607573, now seen corresponding path program 1 times [2023-08-30 09:10:09,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:10:09,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92468095] [2023-08-30 09:10:09,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:09,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:10:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:10,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:10,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:10:10,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92468095] [2023-08-30 09:10:10,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92468095] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:10:10,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:10:10,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 09:10:10,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068948373] [2023-08-30 09:10:10,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:10:10,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:10:10,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:10:10,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:10:10,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:10:10,447 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 792 out of 1870 [2023-08-30 09:10:10,451 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 37 transitions, 93 flow. Second operand has 3 states, 3 states have (on average 794.3333333333334) internal successors, (2383), 3 states have internal predecessors, (2383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:10,452 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:10:10,452 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 792 of 1870 [2023-08-30 09:10:10,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:10:11,121 INFO L130 PetriNetUnfolder]: 61/130 cut-off events. [2023-08-30 09:10:11,122 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-30 09:10:11,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 130 events. 61/130 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 390 event pairs, 51 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 274. Up to 130 conditions per place. [2023-08-30 09:10:11,123 INFO L137 encePairwiseOnDemand]: 1866/1870 looper letters, 36 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2023-08-30 09:10:11,123 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 38 transitions, 171 flow [2023-08-30 09:10:11,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:10:11,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:10:11,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2415 transitions. [2023-08-30 09:10:11,130 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4304812834224599 [2023-08-30 09:10:11,130 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2415 transitions. [2023-08-30 09:10:11,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2415 transitions. [2023-08-30 09:10:11,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:10:11,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2415 transitions. [2023-08-30 09:10:11,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 805.0) internal successors, (2415), 3 states have internal predecessors, (2415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:11,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1870.0) internal successors, (7480), 4 states have internal predecessors, (7480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:11,146 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1870.0) internal successors, (7480), 4 states have internal predecessors, (7480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:11,146 INFO L175 Difference]: Start difference. First operand has 34 places, 37 transitions, 93 flow. Second operand 3 states and 2415 transitions. [2023-08-30 09:10:11,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 38 transitions, 171 flow [2023-08-30 09:10:11,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 38 transitions, 166 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 09:10:11,149 INFO L231 Difference]: Finished difference. Result has 36 places, 38 transitions, 102 flow [2023-08-30 09:10:11,149 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1870, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=36, PETRI_TRANSITIONS=38} [2023-08-30 09:10:11,150 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -23 predicate places. [2023-08-30 09:10:11,151 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 38 transitions, 102 flow [2023-08-30 09:10:11,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 794.3333333333334) internal successors, (2383), 3 states have internal predecessors, (2383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:11,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:10:11,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:10:11,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 09:10:11,152 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_changeErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:10:11,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:10:11,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1273786445, now seen corresponding path program 1 times [2023-08-30 09:10:11,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:10:11,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280729759] [2023-08-30 09:10:11,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:11,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:10:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:11,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 09:10:11,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:10:11,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280729759] [2023-08-30 09:10:11,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280729759] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:10:11,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:10:11,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 09:10:11,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287845958] [2023-08-30 09:10:11,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:10:11,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:10:11,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:10:11,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:10:11,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:10:11,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 795 out of 1870 [2023-08-30 09:10:11,476 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 38 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 797.6666666666666) internal successors, (2393), 3 states have internal predecessors, (2393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:11,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:10:11,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 795 of 1870 [2023-08-30 09:10:11,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:10:11,854 INFO L130 PetriNetUnfolder]: 52/113 cut-off events. [2023-08-30 09:10:11,854 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-30 09:10:11,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 113 events. 52/113 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 325 event pairs, 6 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 244. Up to 68 conditions per place. [2023-08-30 09:10:11,855 INFO L137 encePairwiseOnDemand]: 1868/1870 looper letters, 41 selfloop transitions, 1 changer transitions 0/42 dead transitions. [2023-08-30 09:10:11,856 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 42 transitions, 195 flow [2023-08-30 09:10:11,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:10:11,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:10:11,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2426 transitions. [2023-08-30 09:10:11,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4324420677361854 [2023-08-30 09:10:11,877 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2426 transitions. [2023-08-30 09:10:11,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2426 transitions. [2023-08-30 09:10:11,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:10:11,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2426 transitions. [2023-08-30 09:10:11,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 808.6666666666666) internal successors, (2426), 3 states have internal predecessors, (2426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:11,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1870.0) internal successors, (7480), 4 states have internal predecessors, (7480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:11,892 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1870.0) internal successors, (7480), 4 states have internal predecessors, (7480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:11,892 INFO L175 Difference]: Start difference. First operand has 36 places, 38 transitions, 102 flow. Second operand 3 states and 2426 transitions. [2023-08-30 09:10:11,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 42 transitions, 195 flow [2023-08-30 09:10:11,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 42 transitions, 191 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 09:10:11,893 INFO L231 Difference]: Finished difference. Result has 36 places, 37 transitions, 98 flow [2023-08-30 09:10:11,894 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1870, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=36, PETRI_TRANSITIONS=37} [2023-08-30 09:10:11,894 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -23 predicate places. [2023-08-30 09:10:11,894 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 37 transitions, 98 flow [2023-08-30 09:10:11,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 797.6666666666666) internal successors, (2393), 3 states have internal predecessors, (2393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:11,895 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:10:11,895 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:10:11,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 09:10:11,896 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:10:11,896 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:10:11,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1273786776, now seen corresponding path program 1 times [2023-08-30 09:10:11,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:10:11,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290710862] [2023-08-30 09:10:11,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:11,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:10:12,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:12,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:12,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:10:12,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290710862] [2023-08-30 09:10:12,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290710862] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:10:12,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147433180] [2023-08-30 09:10:12,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:12,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:10:12,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:10:12,481 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:10:12,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 09:10:13,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:13,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 1109 conjuncts, 13 conjunts are in the unsatisfiable core [2023-08-30 09:10:13,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:10:13,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 09:10:13,466 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 09:10:13,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147433180] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:10:13,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 09:10:13,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-30 09:10:13,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192837204] [2023-08-30 09:10:13,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:10:13,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:10:13,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:10:13,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:10:13,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:10:13,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 795 out of 1870 [2023-08-30 09:10:13,555 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 37 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 797.6666666666666) internal successors, (2393), 3 states have internal predecessors, (2393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:13,555 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:10:13,555 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 795 of 1870 [2023-08-30 09:10:13,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:10:14,286 INFO L130 PetriNetUnfolder]: 43/96 cut-off events. [2023-08-30 09:10:14,286 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 09:10:14,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 96 events. 43/96 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 260 event pairs, 6 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 216. Up to 51 conditions per place. [2023-08-30 09:10:14,287 INFO L137 encePairwiseOnDemand]: 1868/1870 looper letters, 40 selfloop transitions, 1 changer transitions 0/41 dead transitions. [2023-08-30 09:10:14,287 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 41 transitions, 189 flow [2023-08-30 09:10:14,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:10:14,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:10:14,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2425 transitions. [2023-08-30 09:10:14,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4322638146167558 [2023-08-30 09:10:14,294 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2425 transitions. [2023-08-30 09:10:14,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2425 transitions. [2023-08-30 09:10:14,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:10:14,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2425 transitions. [2023-08-30 09:10:14,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 808.3333333333334) internal successors, (2425), 3 states have internal predecessors, (2425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:14,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1870.0) internal successors, (7480), 4 states have internal predecessors, (7480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:14,307 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1870.0) internal successors, (7480), 4 states have internal predecessors, (7480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:14,307 INFO L175 Difference]: Start difference. First operand has 36 places, 37 transitions, 98 flow. Second operand 3 states and 2425 transitions. [2023-08-30 09:10:14,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 41 transitions, 189 flow [2023-08-30 09:10:14,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 41 transitions, 188 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:10:14,309 INFO L231 Difference]: Finished difference. Result has 36 places, 36 transitions, 97 flow [2023-08-30 09:10:14,309 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1870, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=36, PETRI_TRANSITIONS=36} [2023-08-30 09:10:14,309 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -23 predicate places. [2023-08-30 09:10:14,310 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 36 transitions, 97 flow [2023-08-30 09:10:14,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 797.6666666666666) internal successors, (2393), 3 states have internal predecessors, (2393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:14,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:10:14,311 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:10:14,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 09:10:14,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-30 09:10:14,522 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_changeErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:10:14,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:10:14,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1273786442, now seen corresponding path program 1 times [2023-08-30 09:10:14,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:10:14,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181283393] [2023-08-30 09:10:14,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:14,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:10:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:15,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:15,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:10:15,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181283393] [2023-08-30 09:10:15,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181283393] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:10:15,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940598690] [2023-08-30 09:10:15,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:15,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:10:15,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:10:15,422 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:10:15,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-30 09:10:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:16,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-30 09:10:16,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:10:16,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:16,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:10:17,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:17,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940598690] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:10:17,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:10:17,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-30 09:10:17,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649550816] [2023-08-30 09:10:17,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:10:17,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 09:10:17,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:10:17,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 09:10:17,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-08-30 09:10:17,130 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 788 out of 1870 [2023-08-30 09:10:17,134 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 36 transitions, 97 flow. Second operand has 7 states, 7 states have (on average 789.8571428571429) internal successors, (5529), 7 states have internal predecessors, (5529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:17,134 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:10:17,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 788 of 1870 [2023-08-30 09:10:17,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:10:17,680 INFO L130 PetriNetUnfolder]: 43/101 cut-off events. [2023-08-30 09:10:17,680 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-30 09:10:17,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 101 events. 43/101 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 260 event pairs, 33 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 237. Up to 96 conditions per place. [2023-08-30 09:10:17,681 INFO L137 encePairwiseOnDemand]: 1862/1870 looper letters, 33 selfloop transitions, 8 changer transitions 0/41 dead transitions. [2023-08-30 09:10:17,681 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 41 transitions, 195 flow [2023-08-30 09:10:17,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 09:10:17,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 09:10:17,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4778 transitions. [2023-08-30 09:10:17,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42584670231729055 [2023-08-30 09:10:17,693 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4778 transitions. [2023-08-30 09:10:17,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4778 transitions. [2023-08-30 09:10:17,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:10:17,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4778 transitions. [2023-08-30 09:10:17,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 796.3333333333334) internal successors, (4778), 6 states have internal predecessors, (4778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:17,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1870.0) internal successors, (13090), 7 states have internal predecessors, (13090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:17,718 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1870.0) internal successors, (13090), 7 states have internal predecessors, (13090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:17,719 INFO L175 Difference]: Start difference. First operand has 36 places, 36 transitions, 97 flow. Second operand 6 states and 4778 transitions. [2023-08-30 09:10:17,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 41 transitions, 195 flow [2023-08-30 09:10:17,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 41 transitions, 194 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:10:17,722 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 162 flow [2023-08-30 09:10:17,723 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1870, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=162, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2023-08-30 09:10:17,723 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -16 predicate places. [2023-08-30 09:10:17,724 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 162 flow [2023-08-30 09:10:17,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 789.8571428571429) internal successors, (5529), 7 states have internal predecessors, (5529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:17,725 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:10:17,725 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:10:17,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-30 09:10:17,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-08-30 09:10:17,937 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_changeErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:10:17,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:10:17,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1019763435, now seen corresponding path program 2 times [2023-08-30 09:10:17,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:10:17,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538000130] [2023-08-30 09:10:17,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:17,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:10:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:18,907 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:18,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:10:18,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538000130] [2023-08-30 09:10:18,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538000130] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:10:18,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102333475] [2023-08-30 09:10:18,908 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 09:10:18,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:10:18,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:10:18,909 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:10:18,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-30 09:10:21,410 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-30 09:10:21,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:10:21,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 1162 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-30 09:10:21,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:10:21,512 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:21,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:10:21,817 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:21,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102333475] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:10:21,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:10:21,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-30 09:10:21,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254665331] [2023-08-30 09:10:21,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:10:21,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-30 09:10:21,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:10:21,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-30 09:10:21,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2023-08-30 09:10:22,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 788 out of 1870 [2023-08-30 09:10:22,209 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 162 flow. Second operand has 17 states, 17 states have (on average 789.3529411764706) internal successors, (13419), 17 states have internal predecessors, (13419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:22,209 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:10:22,209 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 788 of 1870 [2023-08-30 09:10:22,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:10:24,458 INFO L130 PetriNetUnfolder]: 43/110 cut-off events. [2023-08-30 09:10:24,459 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2023-08-30 09:10:24,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 110 events. 43/110 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 268 event pairs, 33 based on Foata normal form. 9/104 useless extension candidates. Maximal degree in co-relation 295. Up to 96 conditions per place. [2023-08-30 09:10:24,460 INFO L137 encePairwiseOnDemand]: 1862/1870 looper letters, 33 selfloop transitions, 17 changer transitions 0/50 dead transitions. [2023-08-30 09:10:24,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 50 transitions, 310 flow [2023-08-30 09:10:24,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 09:10:24,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 09:10:24,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 9523 transitions. [2023-08-30 09:10:24,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42437611408199644 [2023-08-30 09:10:24,480 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 9523 transitions. [2023-08-30 09:10:24,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 9523 transitions. [2023-08-30 09:10:24,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:10:24,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 9523 transitions. [2023-08-30 09:10:24,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 793.5833333333334) internal successors, (9523), 12 states have internal predecessors, (9523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:24,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 1870.0) internal successors, (24310), 13 states have internal predecessors, (24310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:24,529 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 1870.0) internal successors, (24310), 13 states have internal predecessors, (24310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:24,530 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 162 flow. Second operand 12 states and 9523 transitions. [2023-08-30 09:10:24,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 50 transitions, 310 flow [2023-08-30 09:10:24,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 50 transitions, 300 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-30 09:10:24,533 INFO L231 Difference]: Finished difference. Result has 59 places, 50 transitions, 296 flow [2023-08-30 09:10:24,533 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1870, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=296, PETRI_PLACES=59, PETRI_TRANSITIONS=50} [2023-08-30 09:10:24,533 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 0 predicate places. [2023-08-30 09:10:24,533 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 50 transitions, 296 flow [2023-08-30 09:10:24,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 789.3529411764706) internal successors, (13419), 17 states have internal predecessors, (13419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:24,536 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:10:24,537 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:10:24,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-30 09:10:24,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:10:24,749 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_changeErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:10:24,750 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:10:24,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1706125557, now seen corresponding path program 3 times [2023-08-30 09:10:24,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:10:24,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311906858] [2023-08-30 09:10:24,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:24,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:10:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:26,036 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:26,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:10:26,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311906858] [2023-08-30 09:10:26,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311906858] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:10:26,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956792318] [2023-08-30 09:10:26,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-30 09:10:26,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:10:26,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:10:26,038 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:10:26,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-30 09:10:43,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-08-30 09:10:43,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:10:43,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 1264 conjuncts, 32 conjunts are in the unsatisfiable core [2023-08-30 09:10:43,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:10:43,468 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:43,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:10:44,216 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:44,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956792318] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:10:44,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:10:44,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2023-08-30 09:10:44,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057242381] [2023-08-30 09:10:44,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:10:44,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-08-30 09:10:44,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:10:44,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-08-30 09:10:44,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=861, Unknown=0, NotChecked=0, Total=1190 [2023-08-30 09:10:47,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 786 out of 1870 [2023-08-30 09:10:47,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 50 transitions, 296 flow. Second operand has 35 states, 35 states have (on average 787.1714285714286) internal successors, (27551), 35 states have internal predecessors, (27551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:47,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:10:47,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 786 of 1870 [2023-08-30 09:10:47,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:11:12,841 WARN L222 SmtUtils]: Spent 16.14s on a formula simplification. DAG size of input: 67 DAG size of output: 47 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:11:23,301 WARN L222 SmtUtils]: Spent 7.78s on a formula simplification. DAG size of input: 61 DAG size of output: 43 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:11:38,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 09:11:41,715 INFO L130 PetriNetUnfolder]: 43/128 cut-off events. [2023-08-30 09:11:41,715 INFO L131 PetriNetUnfolder]: For 533/533 co-relation queries the response was YES. [2023-08-30 09:11:41,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 128 events. 43/128 cut-off events. For 533/533 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 256 event pairs, 33 based on Foata normal form. 18/131 useless extension candidates. Maximal degree in co-relation 422. Up to 91 conditions per place. [2023-08-30 09:11:41,716 INFO L137 encePairwiseOnDemand]: 1862/1870 looper letters, 29 selfloop transitions, 39 changer transitions 0/68 dead transitions. [2023-08-30 09:11:41,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 68 transitions, 564 flow [2023-08-30 09:11:41,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-08-30 09:11:41,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-08-30 09:11:41,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 19753 transitions. [2023-08-30 09:11:41,747 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.422524064171123 [2023-08-30 09:11:41,747 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 19753 transitions. [2023-08-30 09:11:41,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 19753 transitions. [2023-08-30 09:11:41,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:11:41,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 19753 transitions. [2023-08-30 09:11:41,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 790.12) internal successors, (19753), 25 states have internal predecessors, (19753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:11:41,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 1870.0) internal successors, (48620), 26 states have internal predecessors, (48620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:11:41,828 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 1870.0) internal successors, (48620), 26 states have internal predecessors, (48620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:11:41,828 INFO L175 Difference]: Start difference. First operand has 59 places, 50 transitions, 296 flow. Second operand 25 states and 19753 transitions. [2023-08-30 09:11:41,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 68 transitions, 564 flow [2023-08-30 09:11:41,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 68 transitions, 488 flow, removed 36 selfloop flow, removed 2 redundant places. [2023-08-30 09:11:41,836 INFO L231 Difference]: Finished difference. Result has 81 places, 68 transitions, 434 flow [2023-08-30 09:11:41,836 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1870, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=434, PETRI_PLACES=81, PETRI_TRANSITIONS=68} [2023-08-30 09:11:41,838 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 22 predicate places. [2023-08-30 09:11:41,838 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 68 transitions, 434 flow [2023-08-30 09:11:41,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 787.1714285714286) internal successors, (27551), 35 states have internal predecessors, (27551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:11:41,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:11:41,844 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:11:41,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-30 09:11:42,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:11:42,060 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_changeErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:11:42,061 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:11:42,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1737734325, now seen corresponding path program 4 times [2023-08-30 09:11:42,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:11:42,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85430963] [2023-08-30 09:11:42,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:11:42,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:11:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:11:44,193 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:11:44,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:11:44,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85430963] [2023-08-30 09:11:44,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85430963] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:11:44,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220655341] [2023-08-30 09:11:44,193 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-30 09:11:44,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:11:44,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:11:44,199 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:11:44,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-30 09:11:52,228 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-30 09:11:52,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:11:52,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 1468 conjuncts, 51 conjunts are in the unsatisfiable core [2023-08-30 09:11:52,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:11:52,791 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:11:52,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:11:54,118 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:11:54,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220655341] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:11:54,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:11:54,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 49 [2023-08-30 09:11:54,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325871197] [2023-08-30 09:11:54,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:11:54,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-08-30 09:11:54,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:11:54,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-08-30 09:11:54,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=718, Invalid=1732, Unknown=0, NotChecked=0, Total=2450 [2023-08-30 09:11:57,732 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 788 out of 1870 [2023-08-30 09:11:57,750 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 68 transitions, 434 flow. Second operand has 50 states, 50 states have (on average 789.12) internal successors, (39456), 50 states have internal predecessors, (39456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:11:57,751 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:11:57,751 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 788 of 1870 [2023-08-30 09:11:57,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:13:38,365 WARN L222 SmtUtils]: Spent 1.09m on a formula simplification that was a NOOP. DAG size: 95 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:13:40,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 09:13:42,385 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_external_alloc_~size#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 1) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_external_alloc_~i~0#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 15) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 13) 4294967296) .cse0) (< (mod (+ 19 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 11) 4294967296) .cse0) (< (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0))) is different from false [2023-08-30 09:15:05,996 WARN L222 SmtUtils]: Spent 51.03s on a formula simplification that was a NOOP. DAG size: 87 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:15:49,268 WARN L222 SmtUtils]: Spent 24.24s on a formula simplification that was a NOOP. DAG size: 67 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:15:50,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 09:15:52,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 09:15:54,655 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_external_alloc_~size#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 1) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_external_alloc_~i~0#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 15) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 13) 4294967296) .cse0) (< (mod (+ 19 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 11) 4294967296) .cse0) (< (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0))) is different from false [2023-08-30 09:15:57,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 09:15:59,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 09:16:01,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 09:16:43,906 WARN L222 SmtUtils]: Spent 23.98s on a formula simplification that was a NOOP. DAG size: 63 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:17:47,078 WARN L222 SmtUtils]: Spent 37.93s on a formula simplification that was a NOOP. DAG size: 79 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:17:49,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15