./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 TOGETHER --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 TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 13:18:51,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:18:51,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:18:51,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:18:51,707 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:18:51,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:18:51,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:18:51,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:18:51,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:18:51,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:18:51,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:18:51,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:18:51,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:18:51,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:18:51,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:18:51,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:18:51,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:18:51,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:18:51,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:18:51,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:18:51,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:18:51,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:18:51,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:18:51,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:18:51,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:18:51,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:18:51,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:18:51,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:18:51,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:18:51,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:18:51,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:18:51,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:18:51,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:18:51,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:18:51,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:18:51,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:18:51,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:18:51,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:18:51,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:18:51,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:18:51,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:18:51,762 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:18:51,794 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:18:51,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:18:51,795 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:18:51,795 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:18:51,796 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:18:51,796 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:18:51,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:18:51,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:18:51,797 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:18:51,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:18:51,798 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:18:51,798 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:18:51,799 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:18:51,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:18:51,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:18:51,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:18:51,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:18:51,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:18:51,800 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:18:51,800 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:18:51,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:18:51,800 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:18:51,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:18:51,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:18:51,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:18:51,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:18:51,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:18:51,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:18:51,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:18:51,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:18:51,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:18:51,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:18:51,803 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:18:51,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:18:51,803 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:18:51,803 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:18:51,803 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:18:51,803 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc093ebb342e6e2aeac5659b7fad110e8a742c2f2123ff4689086ab884a6098d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:18:52,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:18:52,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:18:52,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:18:52,101 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:18:52,101 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:18:52,102 INFO L432 ainManager$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 13:18:53,162 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:18:53,616 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:18:53,616 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 13:18:53,650 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82fa37584/1e696cf2a3284e4e91efc05a9f723ad0/FLAG2086f5ed0 [2023-08-30 13:18:53,673 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82fa37584/1e696cf2a3284e4e91efc05a9f723ad0 [2023-08-30 13:18:53,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:18:53,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:18:53,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:18:53,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:18:53,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:18:53,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:18:53" (1/1) ... [2023-08-30 13:18:53,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@671f349c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:18:53, skipping insertion in model container [2023-08-30 13:18:53,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:18:53" (1/1) ... [2023-08-30 13:18:53,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:18:53,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:18:54,074 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 13:18:56,381 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 13:18:56,775 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 13:18:56,779 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 13:18:56,846 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:18:56,862 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:18:56,885 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 13:18:57,068 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 13:18:57,145 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 13:18:57,164 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 13:18:57,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:18:57,760 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:18:57,761 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:18:57,761 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:18:57,761 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:18:57,761 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:18:57,761 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:18:57,762 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:18:57,769 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:18:57,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:18:57 WrapperNode [2023-08-30 13:18:57,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:18:57,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:18:57,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:18:57,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:18:57,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:18:57" (1/1) ... [2023-08-30 13:18:57,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:18:57" (1/1) ... [2023-08-30 13:18:57,958 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 54, statements flattened = 754 [2023-08-30 13:18:57,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:18:57,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:18:57,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:18:57,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:18:57,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:18:57" (1/1) ... [2023-08-30 13:18:57,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:18:57" (1/1) ... [2023-08-30 13:18:57,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:18:57" (1/1) ... [2023-08-30 13:18:57,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:18:57" (1/1) ... [2023-08-30 13:18:58,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:18:57" (1/1) ... [2023-08-30 13:18:58,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:18:57" (1/1) ... [2023-08-30 13:18:58,045 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:18:57" (1/1) ... [2023-08-30 13:18:58,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:18:57" (1/1) ... [2023-08-30 13:18:58,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:18:58,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:18:58,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:18:58,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:18:58,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:18:57" (1/1) ... [2023-08-30 13:18:58,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:18:58,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:18:58,094 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 13:18:58,110 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 13:18:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 13:18:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 13:18:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:18:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 13:18:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2023-08-30 13:18:58,134 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2023-08-30 13:18:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:18:58,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:18:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-30 13:18:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_get [2023-08-30 13:18:58,135 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_get [2023-08-30 13:18:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:18:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 13:18:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:18:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:18:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-30 13:18:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:18:58,138 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 13:18:58,682 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:18:58,684 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:18:59,346 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:18:59,355 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:18:59,356 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2023-08-30 13:18:59,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:18:59 BoogieIcfgContainer [2023-08-30 13:18:59,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:18:59,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:18:59,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:18:59,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:18:59,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:18:53" (1/3) ... [2023-08-30 13:18:59,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1ddde4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:18:59, skipping insertion in model container [2023-08-30 13:18:59,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:18:57" (2/3) ... [2023-08-30 13:18:59,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1ddde4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:18:59, skipping insertion in model container [2023-08-30 13:18:59,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:18:59" (3/3) ... [2023-08-30 13:18:59,365 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_get.i [2023-08-30 13:18:59,371 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:18:59,378 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:18:59,378 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-08-30 13:18:59,379 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:18:59,493 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 13:18:59,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 804 places, 852 transitions, 1720 flow [2023-08-30 13:18:59,749 INFO L130 PetriNetUnfolder]: 55/850 cut-off events. [2023-08-30 13:18:59,749 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 13:18:59,756 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 13:18:59,757 INFO L82 GeneralOperation]: Start removeDead. Operand has 804 places, 852 transitions, 1720 flow [2023-08-30 13:18:59,765 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 794 places, 842 transitions, 1693 flow [2023-08-30 13:18:59,768 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:18:59,775 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 794 places, 842 transitions, 1693 flow [2023-08-30 13:18:59,778 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 794 places, 842 transitions, 1693 flow [2023-08-30 13:18:59,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 794 places, 842 transitions, 1693 flow [2023-08-30 13:18:59,929 INFO L130 PetriNetUnfolder]: 55/842 cut-off events. [2023-08-30 13:18:59,930 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 13:18:59,932 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 13:18:59,940 INFO L119 LiptonReduction]: Number of co-enabled transitions 14236 [2023-08-30 13:20:21,306 WARN L222 SmtUtils]: Spent 19.19s 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 13:20:30,862 WARN L222 SmtUtils]: Spent 9.54s 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 13:21:04,979 WARN L222 SmtUtils]: Spent 34.11s 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 13:21:33,308 WARN L222 SmtUtils]: Spent 28.32s 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 13:22:33,886 WARN L222 SmtUtils]: Spent 58.20s 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 13:23:02,600 WARN L222 SmtUtils]: Spent 28.71s 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 13:24:03,349 WARN L222 SmtUtils]: Spent 1.01m 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 13:24:33,701 WARN L222 SmtUtils]: Spent 30.35s 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 13:24:46,603 INFO L134 LiptonReduction]: Checked pairs total: 10881 [2023-08-30 13:24:46,603 INFO L136 LiptonReduction]: Total number of compositions: 1018 [2023-08-30 13:24:46,616 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:24:46,620 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;@5d4da27, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:24:46,620 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-08-30 13:24:46,627 INFO L130 PetriNetUnfolder]: 2/5 cut-off events. [2023-08-30 13:24:46,627 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:24:46,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:24:46,628 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 13:24:46,629 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 13:24:46,632 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:24:46,633 INFO L85 PathProgramCache]: Analyzing trace with hash 3183669, now seen corresponding path program 1 times [2023-08-30 13:24:46,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:24:46,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090344817] [2023-08-30 13:24:46,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:46,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:24:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:47,092 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 13:24:47,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:24:47,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090344817] [2023-08-30 13:24:47,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090344817] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:24:47,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:24:47,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:24:47,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100321822] [2023-08-30 13:24:47,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:24:47,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 13:24:47,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:24:47,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 13:24:47,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 13:24:47,130 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 800 out of 1870 [2023-08-30 13:24:47,136 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 13:24:47,136 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:24:47,136 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 800 of 1870 [2023-08-30 13:24:47,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:24:47,401 INFO L130 PetriNetUnfolder]: 88/181 cut-off events. [2023-08-30 13:24:47,401 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2023-08-30 13:24:47,402 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 13:24:47,406 INFO L137 encePairwiseOnDemand]: 1837/1870 looper letters, 38 selfloop transitions, 0 changer transitions 3/41 dead transitions. [2023-08-30 13:24:47,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 41 transitions, 173 flow [2023-08-30 13:24:47,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 13:24:47,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 13:24:47,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1674 transitions. [2023-08-30 13:24:47,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4475935828877005 [2023-08-30 13:24:47,430 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1674 transitions. [2023-08-30 13:24:47,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1674 transitions. [2023-08-30 13:24:47,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:24:47,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1674 transitions. [2023-08-30 13:24:47,448 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 13:24:47,460 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 13:24:47,462 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 13:24:47,464 INFO L175 Difference]: Start difference. First operand has 59 places, 74 transitions, 157 flow. Second operand 2 states and 1674 transitions. [2023-08-30 13:24:47,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 41 transitions, 173 flow [2023-08-30 13:24:47,468 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 13:24:47,470 INFO L231 Difference]: Finished difference. Result has 36 places, 38 transitions, 80 flow [2023-08-30 13:24:47,471 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 13:24:47,475 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -23 predicate places. [2023-08-30 13:24:47,475 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 38 transitions, 80 flow [2023-08-30 13:24:47,476 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 13:24:47,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:24:47,477 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 13:24:47,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:24:47,477 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 13:24:47,477 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:24:47,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1235226243, now seen corresponding path program 1 times [2023-08-30 13:24:47,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:24:47,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010025291] [2023-08-30 13:24:47,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:47,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:24:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:47,756 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 13:24:47,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:24:47,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010025291] [2023-08-30 13:24:47,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010025291] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:24:47,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:24:47,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:24:47,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377517566] [2023-08-30 13:24:47,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:24:47,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:24:47,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:24:47,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:24:47,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:24:47,789 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 790 out of 1870 [2023-08-30 13:24:47,791 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 13:24:47,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:24:47,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 790 of 1870 [2023-08-30 13:24:47,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:24:48,114 INFO L130 PetriNetUnfolder]: 111/233 cut-off events. [2023-08-30 13:24:48,115 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-30 13:24:48,116 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 13:24:48,117 INFO L137 encePairwiseOnDemand]: 1864/1870 looper letters, 45 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2023-08-30 13:24:48,117 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 49 transitions, 204 flow [2023-08-30 13:24:48,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:24:48,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:24:48,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2421 transitions. [2023-08-30 13:24:48,123 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43155080213903746 [2023-08-30 13:24:48,123 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2421 transitions. [2023-08-30 13:24:48,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2421 transitions. [2023-08-30 13:24:48,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:24:48,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2421 transitions. [2023-08-30 13:24:48,129 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 13:24:48,138 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 13:24:48,141 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 13:24:48,142 INFO L175 Difference]: Start difference. First operand has 36 places, 38 transitions, 80 flow. Second operand 3 states and 2421 transitions. [2023-08-30 13:24:48,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 49 transitions, 204 flow [2023-08-30 13:24:48,142 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 13:24:48,143 INFO L231 Difference]: Finished difference. Result has 33 places, 36 transitions, 84 flow [2023-08-30 13:24:48,143 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 13:24:48,144 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -26 predicate places. [2023-08-30 13:24:48,144 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 36 transitions, 84 flow [2023-08-30 13:24:48,146 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 13:24:48,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:24:48,146 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 13:24:48,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:24:48,146 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 13:24:48,147 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:24:48,147 INFO L85 PathProgramCache]: Analyzing trace with hash 362706621, now seen corresponding path program 1 times [2023-08-30 13:24:48,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:24:48,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371969727] [2023-08-30 13:24:48,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:48,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:24:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:48,356 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 13:24:48,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:24:48,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371969727] [2023-08-30 13:24:48,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371969727] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:24:48,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:24:48,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:24:48,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650618682] [2023-08-30 13:24:48,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:24:48,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:24:48,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:24:48,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:24:48,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:24:48,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 793 out of 1870 [2023-08-30 13:24:48,381 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 13:24:48,381 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:24:48,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 793 of 1870 [2023-08-30 13:24:48,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:24:48,761 INFO L130 PetriNetUnfolder]: 111/234 cut-off events. [2023-08-30 13:24:48,761 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-30 13:24:48,762 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 13:24:48,763 INFO L137 encePairwiseOnDemand]: 1865/1870 looper letters, 34 selfloop transitions, 3 changer transitions 0/37 dead transitions. [2023-08-30 13:24:48,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 37 transitions, 160 flow [2023-08-30 13:24:48,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:24:48,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:24:48,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2418 transitions. [2023-08-30 13:24:48,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4310160427807487 [2023-08-30 13:24:48,769 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2418 transitions. [2023-08-30 13:24:48,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2418 transitions. [2023-08-30 13:24:48,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:24:48,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2418 transitions. [2023-08-30 13:24:48,775 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 13:24:48,784 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 13:24:48,788 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 13:24:48,788 INFO L175 Difference]: Start difference. First operand has 33 places, 36 transitions, 84 flow. Second operand 3 states and 2418 transitions. [2023-08-30 13:24:48,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 37 transitions, 160 flow [2023-08-30 13:24:48,789 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 13:24:48,789 INFO L231 Difference]: Finished difference. Result has 34 places, 37 transitions, 93 flow [2023-08-30 13:24:48,790 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 13:24:48,790 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -25 predicate places. [2023-08-30 13:24:48,790 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 37 transitions, 93 flow [2023-08-30 13:24:48,792 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 13:24:48,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:24:48,792 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:24:48,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:24:48,793 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 13:24:48,793 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:24:48,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1242607573, now seen corresponding path program 1 times [2023-08-30 13:24:48,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:24:48,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158052513] [2023-08-30 13:24:48,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:48,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:24:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:50,040 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 13:24:50,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:24:50,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158052513] [2023-08-30 13:24:50,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158052513] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:24:50,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:24:50,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:24:50,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188934346] [2023-08-30 13:24:50,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:24:50,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:24:50,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:24:50,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:24:50,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:24:50,092 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 792 out of 1870 [2023-08-30 13:24:50,095 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 13:24:50,095 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:24:50,096 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 792 of 1870 [2023-08-30 13:24:50,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:24:50,710 INFO L130 PetriNetUnfolder]: 61/130 cut-off events. [2023-08-30 13:24:50,710 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-30 13:24:50,711 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 13:24:50,711 INFO L137 encePairwiseOnDemand]: 1866/1870 looper letters, 36 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2023-08-30 13:24:50,712 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 38 transitions, 171 flow [2023-08-30 13:24:50,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:24:50,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:24:50,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2415 transitions. [2023-08-30 13:24:50,719 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4304812834224599 [2023-08-30 13:24:50,719 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2415 transitions. [2023-08-30 13:24:50,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2415 transitions. [2023-08-30 13:24:50,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:24:50,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2415 transitions. [2023-08-30 13:24:50,724 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 13:24:50,732 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 13:24:50,733 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 13:24:50,734 INFO L175 Difference]: Start difference. First operand has 34 places, 37 transitions, 93 flow. Second operand 3 states and 2415 transitions. [2023-08-30 13:24:50,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 38 transitions, 171 flow [2023-08-30 13:24:50,734 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 13:24:50,736 INFO L231 Difference]: Finished difference. Result has 36 places, 38 transitions, 102 flow [2023-08-30 13:24:50,736 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 13:24:50,737 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -23 predicate places. [2023-08-30 13:24:50,738 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 38 transitions, 102 flow [2023-08-30 13:24:50,739 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 13:24:50,739 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:24:50,739 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:24:50,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:24:50,739 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 13:24:50,740 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:24:50,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1273786445, now seen corresponding path program 1 times [2023-08-30 13:24:50,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:24:50,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738862520] [2023-08-30 13:24:50,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:50,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:24:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:51,039 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 13:24:51,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:24:51,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738862520] [2023-08-30 13:24:51,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738862520] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:24:51,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:24:51,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:24:51,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197963669] [2023-08-30 13:24:51,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:24:51,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:24:51,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:24:51,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:24:51,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:24:51,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 795 out of 1870 [2023-08-30 13:24:51,080 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 13:24:51,080 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:24:51,080 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 795 of 1870 [2023-08-30 13:24:51,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:24:51,595 INFO L130 PetriNetUnfolder]: 52/113 cut-off events. [2023-08-30 13:24:51,596 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-30 13:24:51,596 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 13:24:51,597 INFO L137 encePairwiseOnDemand]: 1868/1870 looper letters, 41 selfloop transitions, 1 changer transitions 0/42 dead transitions. [2023-08-30 13:24:51,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 42 transitions, 195 flow [2023-08-30 13:24:51,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:24:51,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:24:51,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2426 transitions. [2023-08-30 13:24:51,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4324420677361854 [2023-08-30 13:24:51,603 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2426 transitions. [2023-08-30 13:24:51,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2426 transitions. [2023-08-30 13:24:51,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:24:51,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2426 transitions. [2023-08-30 13:24:51,609 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 13:24:51,615 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 13:24:51,617 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 13:24:51,617 INFO L175 Difference]: Start difference. First operand has 36 places, 38 transitions, 102 flow. Second operand 3 states and 2426 transitions. [2023-08-30 13:24:51,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 42 transitions, 195 flow [2023-08-30 13:24:51,618 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 13:24:51,621 INFO L231 Difference]: Finished difference. Result has 36 places, 37 transitions, 98 flow [2023-08-30 13:24:51,622 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 13:24:51,623 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -23 predicate places. [2023-08-30 13:24:51,624 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 37 transitions, 98 flow [2023-08-30 13:24:51,624 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 13:24:51,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:24:51,625 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:24:51,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 13:24:51,625 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 13:24:51,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:24:51,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1273786776, now seen corresponding path program 1 times [2023-08-30 13:24:51,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:24:51,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886211582] [2023-08-30 13:24:51,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:51,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:24:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:52,201 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 13:24:52,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:24:52,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886211582] [2023-08-30 13:24:52,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886211582] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:24:52,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776921593] [2023-08-30 13:24:52,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:52,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:24:52,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:24:52,209 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 13:24:52,241 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 13:24:52,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:52,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 1109 conjuncts, 13 conjunts are in the unsatisfiable core [2023-08-30 13:24:52,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:24:53,164 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 13:24:53,164 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 13:24:53,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776921593] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:24:53,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 13:24:53,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-30 13:24:53,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280580901] [2023-08-30 13:24:53,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:24:53,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:24:53,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:24:53,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:24:53,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:24:53,215 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 795 out of 1870 [2023-08-30 13:24:53,217 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 13:24:53,217 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:24:53,217 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 795 of 1870 [2023-08-30 13:24:53,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:24:53,853 INFO L130 PetriNetUnfolder]: 43/96 cut-off events. [2023-08-30 13:24:53,853 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 13:24:53,853 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 13:24:53,854 INFO L137 encePairwiseOnDemand]: 1868/1870 looper letters, 40 selfloop transitions, 1 changer transitions 0/41 dead transitions. [2023-08-30 13:24:53,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 41 transitions, 189 flow [2023-08-30 13:24:53,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:24:53,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:24:53,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2425 transitions. [2023-08-30 13:24:53,860 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4322638146167558 [2023-08-30 13:24:53,860 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2425 transitions. [2023-08-30 13:24:53,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2425 transitions. [2023-08-30 13:24:53,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:24:53,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2425 transitions. [2023-08-30 13:24:53,865 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 13:24:53,872 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 13:24:53,873 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 13:24:53,873 INFO L175 Difference]: Start difference. First operand has 36 places, 37 transitions, 98 flow. Second operand 3 states and 2425 transitions. [2023-08-30 13:24:53,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 41 transitions, 189 flow [2023-08-30 13:24:53,874 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 13:24:53,875 INFO L231 Difference]: Finished difference. Result has 36 places, 36 transitions, 97 flow [2023-08-30 13:24:53,875 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 13:24:53,876 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -23 predicate places. [2023-08-30 13:24:53,876 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 36 transitions, 97 flow [2023-08-30 13:24:53,877 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 13:24:53,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:24:53,877 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:24:53,889 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 13:24:54,089 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 13:24:54,090 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 13:24:54,090 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:24:54,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1273786442, now seen corresponding path program 1 times [2023-08-30 13:24:54,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:24:54,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451366510] [2023-08-30 13:24:54,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:54,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:24:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:54,952 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 13:24:54,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:24:54,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451366510] [2023-08-30 13:24:54,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451366510] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:24:54,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767627918] [2023-08-30 13:24:54,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:54,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:24:54,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:24:54,957 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 13:24:54,980 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 13:24:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:56,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-30 13:24:56,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:24:56,458 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 13:24:56,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 13:24:56,734 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 13:24:56,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767627918] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 13:24:56,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 13:24:56,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-30 13:24:56,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106241713] [2023-08-30 13:24:56,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 13:24:56,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:24:56,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:24:56,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:24:56,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:24:56,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 788 out of 1870 [2023-08-30 13:24:56,804 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 13:24:56,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:24:56,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 788 of 1870 [2023-08-30 13:24:56,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:24:57,325 INFO L130 PetriNetUnfolder]: 43/101 cut-off events. [2023-08-30 13:24:57,326 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-30 13:24:57,326 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 13:24:57,327 INFO L137 encePairwiseOnDemand]: 1862/1870 looper letters, 33 selfloop transitions, 8 changer transitions 0/41 dead transitions. [2023-08-30 13:24:57,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 41 transitions, 195 flow [2023-08-30 13:24:57,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:24:57,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:24:57,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4778 transitions. [2023-08-30 13:24:57,337 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42584670231729055 [2023-08-30 13:24:57,337 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4778 transitions. [2023-08-30 13:24:57,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4778 transitions. [2023-08-30 13:24:57,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:24:57,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4778 transitions. [2023-08-30 13:24:57,347 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 13:24:57,360 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 13:24:57,362 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 13:24:57,362 INFO L175 Difference]: Start difference. First operand has 36 places, 36 transitions, 97 flow. Second operand 6 states and 4778 transitions. [2023-08-30 13:24:57,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 41 transitions, 195 flow [2023-08-30 13:24:57,363 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 13:24:57,365 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 162 flow [2023-08-30 13:24:57,365 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 13:24:57,366 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -16 predicate places. [2023-08-30 13:24:57,366 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 162 flow [2023-08-30 13:24:57,367 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 13:24:57,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:24:57,368 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:24:57,384 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 13:24:57,579 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 13:24:57,579 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 13:24:57,579 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:24:57,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1019763435, now seen corresponding path program 2 times [2023-08-30 13:24:57,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:24:57,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032313082] [2023-08-30 13:24:57,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:57,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:24:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:58,423 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 13:24:58,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:24:58,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032313082] [2023-08-30 13:24:58,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032313082] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:24:58,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263739832] [2023-08-30 13:24:58,427 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 13:24:58,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:24:58,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:24:58,429 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 13:24:58,458 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 13:25:00,946 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-30 13:25:00,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 13:25:00,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 1162 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-30 13:25:00,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:25:01,072 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 13:25:01,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 13:25:01,347 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 13:25:01,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263739832] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 13:25:01,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 13:25:01,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-30 13:25:01,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034739664] [2023-08-30 13:25:01,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 13:25:01,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-30 13:25:01,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:25:01,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-30 13:25:01,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2023-08-30 13:25:01,719 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 788 out of 1870 [2023-08-30 13:25:01,729 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 13:25:01,729 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:25:01,729 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 788 of 1870 [2023-08-30 13:25:01,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:25:03,973 INFO L130 PetriNetUnfolder]: 43/110 cut-off events. [2023-08-30 13:25:03,973 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2023-08-30 13:25:03,974 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 13:25:03,974 INFO L137 encePairwiseOnDemand]: 1862/1870 looper letters, 33 selfloop transitions, 17 changer transitions 0/50 dead transitions. [2023-08-30 13:25:03,974 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 50 transitions, 310 flow [2023-08-30 13:25:03,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:25:03,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:25:03,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 9523 transitions. [2023-08-30 13:25:03,996 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42437611408199644 [2023-08-30 13:25:03,997 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 9523 transitions. [2023-08-30 13:25:03,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 9523 transitions. [2023-08-30 13:25:04,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:25:04,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 9523 transitions. [2023-08-30 13:25:04,018 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 13:25:04,043 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 13:25:04,048 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 13:25:04,049 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 162 flow. Second operand 12 states and 9523 transitions. [2023-08-30 13:25:04,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 50 transitions, 310 flow [2023-08-30 13:25:04,052 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 13:25:04,054 INFO L231 Difference]: Finished difference. Result has 59 places, 50 transitions, 296 flow [2023-08-30 13:25:04,054 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 13:25:04,056 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 0 predicate places. [2023-08-30 13:25:04,057 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 50 transitions, 296 flow [2023-08-30 13:25:04,060 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 13:25:04,061 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:25:04,061 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:25:04,079 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 13:25:04,273 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 13:25:04,273 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 13:25:04,273 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:25:04,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1706125557, now seen corresponding path program 3 times [2023-08-30 13:25:04,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:25:04,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164474743] [2023-08-30 13:25:04,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:25:04,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:25:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:25:05,577 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 13:25:05,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:25:05,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164474743] [2023-08-30 13:25:05,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164474743] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:25:05,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910407840] [2023-08-30 13:25:05,577 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-30 13:25:05,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:25:05,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:25:05,579 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 13:25:05,600 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 13:25:20,138 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-08-30 13:25:20,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 13:25:20,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 1264 conjuncts, 32 conjunts are in the unsatisfiable core [2023-08-30 13:25:20,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:25:20,439 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 13:25:20,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 13:25:21,134 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 13:25:21,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910407840] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 13:25:21,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 13:25:21,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2023-08-30 13:25:21,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466688146] [2023-08-30 13:25:21,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 13:25:21,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-08-30 13:25:21,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:25:21,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-08-30 13:25:21,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=861, Unknown=0, NotChecked=0, Total=1190 [2023-08-30 13:25:24,339 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 786 out of 1870 [2023-08-30 13:25:24,373 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 13:25:24,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:25:24,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 786 of 1870 [2023-08-30 13:25:24,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:25:50,037 WARN L222 SmtUtils]: Spent 18.08s 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 13:26:04,003 WARN L222 SmtUtils]: Spent 10.22s 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 13:26:10,416 WARN L222 SmtUtils]: Spent 5.54s on a formula simplification. DAG size of input: 55 DAG size of output: 39 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 13:26:20,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 13:26:23,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 13:26:24,498 INFO L130 PetriNetUnfolder]: 43/128 cut-off events. [2023-08-30 13:26:24,498 INFO L131 PetriNetUnfolder]: For 533/533 co-relation queries the response was YES. [2023-08-30 13:26:24,498 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 13:26:24,499 INFO L137 encePairwiseOnDemand]: 1862/1870 looper letters, 29 selfloop transitions, 39 changer transitions 0/68 dead transitions. [2023-08-30 13:26:24,499 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 68 transitions, 564 flow [2023-08-30 13:26:24,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-08-30 13:26:24,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-08-30 13:26:24,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 19753 transitions. [2023-08-30 13:26:24,535 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.422524064171123 [2023-08-30 13:26:24,535 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 19753 transitions. [2023-08-30 13:26:24,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 19753 transitions. [2023-08-30 13:26:24,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:26:24,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 19753 transitions. [2023-08-30 13:26:24,565 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 13:26:24,602 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 13:26:24,608 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 13:26:24,608 INFO L175 Difference]: Start difference. First operand has 59 places, 50 transitions, 296 flow. Second operand 25 states and 19753 transitions. [2023-08-30 13:26:24,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 68 transitions, 564 flow [2023-08-30 13:26:24,612 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 13:26:24,613 INFO L231 Difference]: Finished difference. Result has 81 places, 68 transitions, 434 flow [2023-08-30 13:26:24,613 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 13:26:24,614 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 22 predicate places. [2023-08-30 13:26:24,614 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 68 transitions, 434 flow [2023-08-30 13:26:24,618 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 13:26:24,618 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:26:24,618 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:26:24,634 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 13:26:24,833 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 13:26:24,833 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 13:26:24,833 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:26:24,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1737734325, now seen corresponding path program 4 times [2023-08-30 13:26:24,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:26:24,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90876486] [2023-08-30 13:26:24,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:26:24,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:26:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:26:26,915 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 13:26:26,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:26:26,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90876486] [2023-08-30 13:26:26,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90876486] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:26:26,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091588243] [2023-08-30 13:26:26,916 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-30 13:26:26,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:26:26,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:26:26,921 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 13:26:26,951 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 13:26:33,910 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-30 13:26:33,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 13:26:33,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 1468 conjuncts, 51 conjunts are in the unsatisfiable core [2023-08-30 13:26:33,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:26:34,512 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 13:26:34,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 13:26:35,704 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 13:26:35,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091588243] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 13:26:35,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 13:26:35,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 49 [2023-08-30 13:26:35,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950763482] [2023-08-30 13:26:35,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 13:26:35,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-08-30 13:26:35,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:26:35,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-08-30 13:26:35,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=718, Invalid=1732, Unknown=0, NotChecked=0, Total=2450 [2023-08-30 13:26:39,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 788 out of 1870 [2023-08-30 13:26:39,176 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 13:26:39,176 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:26:39,176 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 788 of 1870 [2023-08-30 13:26:39,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:28:25,951 WARN L222 SmtUtils]: Spent 1.12m 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 13:28:27,959 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 13:28:29,973 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 13:28:31,986 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| 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 13:29:18,320 WARN L222 SmtUtils]: Spent 24.41s 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 13:30:45,904 WARN L222 SmtUtils]: Spent 55.15s on a formula simplification that was a NOOP. DAG size: 83 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 13:30:48,579 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 13:31:26,606 WARN L222 SmtUtils]: Spent 15.61s 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 13:32:37,568 WARN L222 SmtUtils]: Spent 41.25s 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) Killed by 15