./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_configure.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_configure.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 fcc0f5ef9d6c49d1991b076f6c361ed83f7f84302617131ead28c4e655562844 --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 13:15:53,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:15:53,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:15:53,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:15:53,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:15:53,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:15:53,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:15:53,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:15:53,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:15:53,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:15:53,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:15:53,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:15:53,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:15:53,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:15:53,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:15:53,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:15:53,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:15:53,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:15:53,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:15:53,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:15:53,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:15:53,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:15:53,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:15:53,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:15:53,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:15:53,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:15:53,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:15:53,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:15:53,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:15:53,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:15:53,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:15:53,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:15:53,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:15:53,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:15:53,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:15:53,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:15:53,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:15:53,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:15:53,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:15:53,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:15:53,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:15:53,107 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:15:53,133 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:15:53,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:15:53,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:15:53,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:15:53,136 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:15:53,136 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:15:53,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:15:53,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:15:53,137 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:15:53,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:15:53,138 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:15:53,138 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:15:53,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:15:53,138 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:15:53,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:15:53,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:15:53,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:15:53,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:15:53,139 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:15:53,139 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:15:53,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:15:53,139 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:15:53,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:15:53,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:15:53,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:15:53,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:15:53,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:15:53,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:15:53,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:15:53,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:15:53,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:15:53,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:15:53,141 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:15:53,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:15:53,141 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:15:53,141 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:15:53,142 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:15:53,142 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc0f5ef9d6c49d1991b076f6c361ed83f7f84302617131ead28c4e655562844 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:15:53,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:15:53,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:15:53,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:15:53,391 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:15:53,391 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:15:53,392 INFO L432 ainManager$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_configure.i [2023-08-30 13:15:54,402 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:15:54,806 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:15:54,806 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_configure.i [2023-08-30 13:15:54,839 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74c8b33f6/ae6d71ce26fe417785187c4b18d42342/FLAG819da5f79 [2023-08-30 13:15:54,851 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74c8b33f6/ae6d71ce26fe417785187c4b18d42342 [2023-08-30 13:15:54,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:15:54,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:15:54,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:15:54,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:15:54,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:15:54,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:15:54" (1/1) ... [2023-08-30 13:15:54,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b9a3400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:15:54, skipping insertion in model container [2023-08-30 13:15:54,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:15:54" (1/1) ... [2023-08-30 13:15:54,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:15:54,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:15:55,187 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_configure.i[5469,5482] [2023-08-30 13:15:57,011 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 13:15:57,385 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 13:15:57,388 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 13:15:57,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:15:57,462 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:15:57,483 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_configure.i[5469,5482] [2023-08-30 13:15:57,608 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 13:15:57,664 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 13:15:57,665 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 13:15:57,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:15:58,047 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:15:58,048 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:15:58,048 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:15:58,048 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:15:58,048 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:15:58,048 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:15:58,048 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:15:58,053 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:15:58,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:15:58 WrapperNode [2023-08-30 13:15:58,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:15:58,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:15:58,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:15:58,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:15:58,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:15:58" (1/1) ... [2023-08-30 13:15:58,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:15:58" (1/1) ... [2023-08-30 13:15:58,184 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 75, statements flattened = 867 [2023-08-30 13:15:58,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:15:58,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:15:58,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:15:58,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:15:58,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:15:58" (1/1) ... [2023-08-30 13:15:58,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:15:58" (1/1) ... [2023-08-30 13:15:58,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:15:58" (1/1) ... [2023-08-30 13:15:58,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:15:58" (1/1) ... [2023-08-30 13:15:58,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:15:58" (1/1) ... [2023-08-30 13:15:58,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:15:58" (1/1) ... [2023-08-30 13:15:58,232 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:15:58" (1/1) ... [2023-08-30 13:15:58,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:15:58" (1/1) ... [2023-08-30 13:15:58,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:15:58,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:15:58,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:15:58,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:15:58,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:15:58" (1/1) ... [2023-08-30 13:15:58,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:15:58,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:15:58,277 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 13:15:58,279 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 13:15:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 13:15:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 13:15:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:15:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 13:15:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2023-08-30 13:15:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2023-08-30 13:15:58,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:15:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:15:58,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-30 13:15:58,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:15:58,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 13:15:58,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:15:58,303 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_configure [2023-08-30 13:15:58,303 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_configure [2023-08-30 13:15:58,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:15:58,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:15:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:15:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-30 13:15:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:15:58,305 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 13:15:58,682 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:15:58,683 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:15:59,316 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:15:59,334 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:15:59,334 INFO L302 CfgBuilder]: Removed 25 assume(true) statements. [2023-08-30 13:15:59,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:15:59 BoogieIcfgContainer [2023-08-30 13:15:59,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:15:59,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:15:59,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:15:59,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:15:59,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:15:54" (1/3) ... [2023-08-30 13:15:59,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@549cb640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:15:59, skipping insertion in model container [2023-08-30 13:15:59,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:15:58" (2/3) ... [2023-08-30 13:15:59,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@549cb640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:15:59, skipping insertion in model container [2023-08-30 13:15:59,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:15:59" (3/3) ... [2023-08-30 13:15:59,341 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_configure.i [2023-08-30 13:15:59,346 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:15:59,351 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:15:59,351 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 38 error locations. [2023-08-30 13:15:59,351 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:15:59,458 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 13:15:59,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 943 places, 996 transitions, 2008 flow [2023-08-30 13:15:59,677 INFO L130 PetriNetUnfolder]: 60/994 cut-off events. [2023-08-30 13:15:59,677 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 13:15:59,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1003 conditions, 994 events. 60/994 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1921 event pairs, 0 based on Foata normal form. 0/896 useless extension candidates. Maximal degree in co-relation 827. Up to 9 conditions per place. [2023-08-30 13:15:59,687 INFO L82 GeneralOperation]: Start removeDead. Operand has 943 places, 996 transitions, 2008 flow [2023-08-30 13:15:59,694 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 933 places, 986 transitions, 1981 flow [2023-08-30 13:15:59,697 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:15:59,702 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 933 places, 986 transitions, 1981 flow [2023-08-30 13:15:59,704 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 933 places, 986 transitions, 1981 flow [2023-08-30 13:15:59,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 933 places, 986 transitions, 1981 flow [2023-08-30 13:15:59,867 INFO L130 PetriNetUnfolder]: 60/986 cut-off events. [2023-08-30 13:15:59,867 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 13:15:59,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 994 conditions, 986 events. 60/986 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1767 event pairs, 0 based on Foata normal form. 0/888 useless extension candidates. Maximal degree in co-relation 827. Up to 9 conditions per place. [2023-08-30 13:15:59,890 INFO L119 LiptonReduction]: Number of co-enabled transitions 61180 [2023-08-30 13:19:52,428 WARN L222 SmtUtils]: Spent 2.44m on a formula simplification. DAG size of input: 669 DAG size of output: 667 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:20:24,366 WARN L222 SmtUtils]: Spent 31.91s 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 13:22:57,441 WARN L222 SmtUtils]: Spent 2.55m on a formula simplification. DAG size of input: 672 DAG size of output: 670 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:24:00,419 WARN L222 SmtUtils]: Spent 1.05m on a formula simplification that was a NOOP. DAG size: 584 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:24:13,354 INFO L134 LiptonReduction]: Checked pairs total: 51271 [2023-08-30 13:24:13,354 INFO L136 LiptonReduction]: Total number of compositions: 1207 [2023-08-30 13:24:13,363 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:24:13,366 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;@d18e19f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:24:13,366 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2023-08-30 13:24:13,371 INFO L130 PetriNetUnfolder]: 2/5 cut-off events. [2023-08-30 13:24:13,372 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:24:13,372 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:24:13,372 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 13:24:13,372 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 13:24:13,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:24:13,376 INFO L85 PathProgramCache]: Analyzing trace with hash 3839474, now seen corresponding path program 1 times [2023-08-30 13:24:13,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:24:13,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965070428] [2023-08-30 13:24:13,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:13,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:24:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:13,767 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 13:24:13,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:24:13,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965070428] [2023-08-30 13:24:13,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965070428] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:24:13,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:24:13,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:24:13,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716827907] [2023-08-30 13:24:13,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:24:13,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 13:24:13,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:24:13,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 13:24:13,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 13:24:13,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 935 out of 2203 [2023-08-30 13:24:13,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 90 transitions, 189 flow. Second operand has 2 states, 2 states have (on average 936.5) internal successors, (1873), 2 states have internal predecessors, (1873), 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 13:24:13,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:24:13,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 935 of 2203 [2023-08-30 13:24:13,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:24:14,078 INFO L130 PetriNetUnfolder]: 133/266 cut-off events. [2023-08-30 13:24:14,079 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2023-08-30 13:24:14,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 266 events. 133/266 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 837 event pairs, 123 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 378. Up to 267 conditions per place. [2023-08-30 13:24:14,081 INFO L137 encePairwiseOnDemand]: 2159/2203 looper letters, 40 selfloop transitions, 0 changer transitions 6/46 dead transitions. [2023-08-30 13:24:14,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 46 transitions, 193 flow [2023-08-30 13:24:14,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 13:24:14,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 13:24:14,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1960 transitions. [2023-08-30 13:24:14,098 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4448479346345892 [2023-08-30 13:24:14,098 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1960 transitions. [2023-08-30 13:24:14,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1960 transitions. [2023-08-30 13:24:14,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:24:14,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1960 transitions. [2023-08-30 13:24:14,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 980.0) internal successors, (1960), 2 states have internal predecessors, (1960), 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 13:24:14,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 2203.0) internal successors, (6609), 3 states have internal predecessors, (6609), 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 13:24:14,124 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 2203.0) internal successors, (6609), 3 states have internal predecessors, (6609), 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 13:24:14,125 INFO L175 Difference]: Start difference. First operand has 74 places, 90 transitions, 189 flow. Second operand 2 states and 1960 transitions. [2023-08-30 13:24:14,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 46 transitions, 193 flow [2023-08-30 13:24:14,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 46 transitions, 188 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 13:24:14,129 INFO L231 Difference]: Finished difference. Result has 41 places, 40 transitions, 84 flow [2023-08-30 13:24:14,130 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2203, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=84, PETRI_PLACES=41, PETRI_TRANSITIONS=40} [2023-08-30 13:24:14,132 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -33 predicate places. [2023-08-30 13:24:14,132 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 40 transitions, 84 flow [2023-08-30 13:24:14,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 936.5) internal successors, (1873), 2 states have internal predecessors, (1873), 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 13:24:14,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:24:14,133 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 13:24:14,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:24:14,134 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 13:24:14,134 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:24:14,134 INFO L85 PathProgramCache]: Analyzing trace with hash -604957261, now seen corresponding path program 1 times [2023-08-30 13:24:14,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:24:14,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923244315] [2023-08-30 13:24:14,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:14,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:24:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:14,315 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 13:24:14,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:24:14,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923244315] [2023-08-30 13:24:14,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923244315] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:24:14,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:24:14,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:24:14,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986912694] [2023-08-30 13:24:14,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:24:14,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:24:14,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:24:14,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:24:14,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:24:14,336 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 926 out of 2203 [2023-08-30 13:24:14,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 40 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 927.6666666666666) internal successors, (2783), 3 states have internal predecessors, (2783), 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 13:24:14,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:24:14,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 926 of 2203 [2023-08-30 13:24:14,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:24:14,758 INFO L130 PetriNetUnfolder]: 148/305 cut-off events. [2023-08-30 13:24:14,758 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-08-30 13:24:14,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 305 events. 148/305 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1098 event pairs, 138 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 624. Up to 160 conditions per place. [2023-08-30 13:24:14,760 INFO L137 encePairwiseOnDemand]: 2199/2203 looper letters, 54 selfloop transitions, 3 changer transitions 0/57 dead transitions. [2023-08-30 13:24:14,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 57 transitions, 236 flow [2023-08-30 13:24:14,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:24:14,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:24:14,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2836 transitions. [2023-08-30 13:24:14,765 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42911181721894387 [2023-08-30 13:24:14,765 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2836 transitions. [2023-08-30 13:24:14,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2836 transitions. [2023-08-30 13:24:14,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:24:14,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2836 transitions. [2023-08-30 13:24:14,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 945.3333333333334) internal successors, (2836), 3 states have internal predecessors, (2836), 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 13:24:14,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2203.0) internal successors, (8812), 4 states have internal predecessors, (8812), 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 13:24:14,780 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2203.0) internal successors, (8812), 4 states have internal predecessors, (8812), 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 13:24:14,780 INFO L175 Difference]: Start difference. First operand has 41 places, 40 transitions, 84 flow. Second operand 3 states and 2836 transitions. [2023-08-30 13:24:14,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 57 transitions, 236 flow [2023-08-30 13:24:14,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 57 transitions, 236 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 13:24:14,782 INFO L231 Difference]: Finished difference. Result has 36 places, 39 transitions, 88 flow [2023-08-30 13:24:14,782 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2203, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=36, PETRI_TRANSITIONS=39} [2023-08-30 13:24:14,783 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -38 predicate places. [2023-08-30 13:24:14,783 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 39 transitions, 88 flow [2023-08-30 13:24:14,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 927.6666666666666) internal successors, (2783), 3 states have internal predecessors, (2783), 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 13:24:14,785 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:24:14,785 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 13:24:14,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:24:14,787 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 13:24:14,789 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:24:14,789 INFO L85 PathProgramCache]: Analyzing trace with hash -604957174, now seen corresponding path program 1 times [2023-08-30 13:24:14,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:24:14,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076237083] [2023-08-30 13:24:14,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:14,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:24:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:14,952 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 13:24:14,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:24:14,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076237083] [2023-08-30 13:24:14,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076237083] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:24:14,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:24:14,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:24:14,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807460969] [2023-08-30 13:24:14,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:24:14,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:24:14,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:24:14,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:24:14,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:24:14,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 927 out of 2203 [2023-08-30 13:24:14,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 39 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 928.6666666666666) internal successors, (2786), 3 states have internal predecessors, (2786), 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 13:24:14,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:24:14,974 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 927 of 2203 [2023-08-30 13:24:14,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:24:15,289 INFO L130 PetriNetUnfolder]: 216/443 cut-off events. [2023-08-30 13:24:15,289 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-08-30 13:24:15,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 914 conditions, 443 events. 216/443 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1831 event pairs, 207 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 910. Up to 290 conditions per place. [2023-08-30 13:24:15,291 INFO L137 encePairwiseOnDemand]: 2198/2203 looper letters, 49 selfloop transitions, 4 changer transitions 0/53 dead transitions. [2023-08-30 13:24:15,291 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 53 transitions, 226 flow [2023-08-30 13:24:15,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:24:15,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:24:15,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2835 transitions. [2023-08-30 13:24:15,296 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4289605083976396 [2023-08-30 13:24:15,296 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2835 transitions. [2023-08-30 13:24:15,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2835 transitions. [2023-08-30 13:24:15,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:24:15,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2835 transitions. [2023-08-30 13:24:15,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 945.0) internal successors, (2835), 3 states have internal predecessors, (2835), 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 13:24:15,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2203.0) internal successors, (8812), 4 states have internal predecessors, (8812), 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 13:24:15,311 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2203.0) internal successors, (8812), 4 states have internal predecessors, (8812), 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 13:24:15,311 INFO L175 Difference]: Start difference. First operand has 36 places, 39 transitions, 88 flow. Second operand 3 states and 2835 transitions. [2023-08-30 13:24:15,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 53 transitions, 226 flow [2023-08-30 13:24:15,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 53 transitions, 220 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:24:15,312 INFO L231 Difference]: Finished difference. Result has 35 places, 38 transitions, 88 flow [2023-08-30 13:24:15,313 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2203, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=35, PETRI_TRANSITIONS=38} [2023-08-30 13:24:15,313 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -39 predicate places. [2023-08-30 13:24:15,313 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 38 transitions, 88 flow [2023-08-30 13:24:15,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 928.6666666666666) internal successors, (2786), 3 states have internal predecessors, (2786), 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 13:24:15,314 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:24:15,314 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 13:24:15,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:24:15,315 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 13:24:15,315 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:24:15,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1573788701, now seen corresponding path program 1 times [2023-08-30 13:24:15,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:24:15,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605092962] [2023-08-30 13:24:15,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:15,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:24:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:15,454 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 13:24:15,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:24:15,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605092962] [2023-08-30 13:24:15,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605092962] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:24:15,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:24:15,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:24:15,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893946930] [2023-08-30 13:24:15,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:24:15,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:24:15,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:24:15,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:24:15,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:24:15,471 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 928 out of 2203 [2023-08-30 13:24:15,474 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 38 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 930.0) internal successors, (2790), 3 states have internal predecessors, (2790), 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 13:24:15,474 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:24:15,474 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 928 of 2203 [2023-08-30 13:24:15,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:24:15,806 INFO L130 PetriNetUnfolder]: 147/302 cut-off events. [2023-08-30 13:24:15,806 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-08-30 13:24:15,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 626 conditions, 302 events. 147/302 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1085 event pairs, 138 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 622. Up to 301 conditions per place. [2023-08-30 13:24:15,808 INFO L137 encePairwiseOnDemand]: 2198/2203 looper letters, 36 selfloop transitions, 3 changer transitions 0/39 dead transitions. [2023-08-30 13:24:15,808 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 39 transitions, 168 flow [2023-08-30 13:24:15,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:24:15,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:24:15,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2825 transitions. [2023-08-30 13:24:15,813 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42744742018459675 [2023-08-30 13:24:15,813 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2825 transitions. [2023-08-30 13:24:15,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2825 transitions. [2023-08-30 13:24:15,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:24:15,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2825 transitions. [2023-08-30 13:24:15,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 941.6666666666666) internal successors, (2825), 3 states have internal predecessors, (2825), 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 13:24:15,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2203.0) internal successors, (8812), 4 states have internal predecessors, (8812), 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 13:24:15,826 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2203.0) internal successors, (8812), 4 states have internal predecessors, (8812), 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 13:24:15,826 INFO L175 Difference]: Start difference. First operand has 35 places, 38 transitions, 88 flow. Second operand 3 states and 2825 transitions. [2023-08-30 13:24:15,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 39 transitions, 168 flow [2023-08-30 13:24:15,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 39 transitions, 160 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:24:15,827 INFO L231 Difference]: Finished difference. Result has 36 places, 39 transitions, 97 flow [2023-08-30 13:24:15,827 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2203, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=36, PETRI_TRANSITIONS=39} [2023-08-30 13:24:15,828 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -38 predicate places. [2023-08-30 13:24:15,828 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 39 transitions, 97 flow [2023-08-30 13:24:15,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 930.0) internal successors, (2790), 3 states have internal predecessors, (2790), 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 13:24:15,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:24:15,829 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:24:15,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:24:15,829 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 13:24:15,830 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:24:15,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1542802778, now seen corresponding path program 1 times [2023-08-30 13:24:15,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:24:15,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890841310] [2023-08-30 13:24:15,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:15,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:24:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:15,983 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 13:24:15,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:24:15,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890841310] [2023-08-30 13:24:15,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890841310] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:24:15,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952761446] [2023-08-30 13:24:15,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:15,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:24:15,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:24:15,986 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 13:24:15,994 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 13:24:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:16,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 1115 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-30 13:24:16,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:24:16,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:24:16,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 13:24:16,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952761446] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:24:16,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 13:24:16,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-08-30 13:24:16,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603144583] [2023-08-30 13:24:16,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:24:16,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:24:16,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:24:16,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:24:16,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:24:16,454 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 928 out of 2203 [2023-08-30 13:24:16,457 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 39 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 929.75) internal successors, (3719), 4 states have internal predecessors, (3719), 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 13:24:16,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:24:16,472 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 928 of 2203 [2023-08-30 13:24:16,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:24:16,916 INFO L130 PetriNetUnfolder]: 147/301 cut-off events. [2023-08-30 13:24:16,916 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-08-30 13:24:16,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 301 events. 147/301 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1039 event pairs, 138 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 622. Up to 158 conditions per place. [2023-08-30 13:24:16,917 INFO L137 encePairwiseOnDemand]: 2199/2203 looper letters, 50 selfloop transitions, 3 changer transitions 0/53 dead transitions. [2023-08-30 13:24:16,917 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 53 transitions, 233 flow [2023-08-30 13:24:16,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:24:16,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:24:16,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3766 transitions. [2023-08-30 13:24:16,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42737176577394465 [2023-08-30 13:24:16,925 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 3766 transitions. [2023-08-30 13:24:16,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 3766 transitions. [2023-08-30 13:24:16,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:24:16,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 3766 transitions. [2023-08-30 13:24:16,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 941.5) internal successors, (3766), 4 states have internal predecessors, (3766), 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 13:24:16,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 2203.0) internal successors, (11015), 5 states have internal predecessors, (11015), 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 13:24:16,940 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 2203.0) internal successors, (11015), 5 states have internal predecessors, (11015), 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 13:24:16,940 INFO L175 Difference]: Start difference. First operand has 36 places, 39 transitions, 97 flow. Second operand 4 states and 3766 transitions. [2023-08-30 13:24:16,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 53 transitions, 233 flow [2023-08-30 13:24:16,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 53 transitions, 228 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 13:24:16,942 INFO L231 Difference]: Finished difference. Result has 37 places, 38 transitions, 94 flow [2023-08-30 13:24:16,942 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2203, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=37, PETRI_TRANSITIONS=38} [2023-08-30 13:24:16,943 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -37 predicate places. [2023-08-30 13:24:16,943 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 38 transitions, 94 flow [2023-08-30 13:24:16,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 929.75) internal successors, (3719), 4 states have internal predecessors, (3719), 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 13:24:16,944 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:24:16,944 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:24:16,957 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 13:24:17,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:24:17,151 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 13:24:17,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:24:17,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2108244914, now seen corresponding path program 1 times [2023-08-30 13:24:17,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:24:17,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957975382] [2023-08-30 13:24:17,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:17,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:24:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:17,749 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 13:24:17,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:24:17,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957975382] [2023-08-30 13:24:17,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957975382] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:24:17,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:24:17,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:24:17,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292579624] [2023-08-30 13:24:17,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:24:17,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:24:17,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:24:17,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:24:17,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:24:17,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 927 out of 2203 [2023-08-30 13:24:17,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 38 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 930.0) internal successors, (2790), 3 states have internal predecessors, (2790), 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 13:24:17,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:24:17,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 927 of 2203 [2023-08-30 13:24:17,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:24:18,415 INFO L130 PetriNetUnfolder]: 147/302 cut-off events. [2023-08-30 13:24:18,415 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-08-30 13:24:18,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 630 conditions, 302 events. 147/302 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1038 event pairs, 138 based on Foata normal form. 0/245 useless extension candidates. Maximal degree in co-relation 625. Up to 302 conditions per place. [2023-08-30 13:24:18,416 INFO L137 encePairwiseOnDemand]: 2199/2203 looper letters, 37 selfloop transitions, 2 changer transitions 0/39 dead transitions. [2023-08-30 13:24:18,417 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 39 transitions, 174 flow [2023-08-30 13:24:18,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:24:18,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:24:18,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2821 transitions. [2023-08-30 13:24:18,422 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42684218489937964 [2023-08-30 13:24:18,422 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2821 transitions. [2023-08-30 13:24:18,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2821 transitions. [2023-08-30 13:24:18,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:24:18,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2821 transitions. [2023-08-30 13:24:18,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 940.3333333333334) internal successors, (2821), 3 states have internal predecessors, (2821), 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 13:24:18,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2203.0) internal successors, (8812), 4 states have internal predecessors, (8812), 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 13:24:18,446 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2203.0) internal successors, (8812), 4 states have internal predecessors, (8812), 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 13:24:18,446 INFO L175 Difference]: Start difference. First operand has 37 places, 38 transitions, 94 flow. Second operand 3 states and 2821 transitions. [2023-08-30 13:24:18,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 39 transitions, 174 flow [2023-08-30 13:24:18,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 39 transitions, 169 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:24:18,447 INFO L231 Difference]: Finished difference. Result has 38 places, 39 transitions, 103 flow [2023-08-30 13:24:18,447 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2203, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=38, PETRI_TRANSITIONS=39} [2023-08-30 13:24:18,448 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -36 predicate places. [2023-08-30 13:24:18,448 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 39 transitions, 103 flow [2023-08-30 13:24:18,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 930.0) internal successors, (2790), 3 states have internal predecessors, (2790), 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 13:24:18,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:24:18,449 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:24:18,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 13:24:18,449 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 13:24:18,449 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:24:18,449 INFO L85 PathProgramCache]: Analyzing trace with hash 991368202, now seen corresponding path program 1 times [2023-08-30 13:24:18,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:24:18,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054193704] [2023-08-30 13:24:18,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:18,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:24:18,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:18,977 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 13:24:18,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:24:18,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054193704] [2023-08-30 13:24:18,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054193704] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:24:18,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466829111] [2023-08-30 13:24:18,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:18,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:24:18,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:24:18,980 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 13:24:18,982 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 13:24:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:19,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 1112 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-30 13:24:19,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:24:19,626 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 13:24:19,626 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 13:24:19,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466829111] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:24:19,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 13:24:19,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-30 13:24:19,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976017790] [2023-08-30 13:24:19,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:24:19,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:24:19,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:24:19,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:24:19,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:24:19,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 930 out of 2203 [2023-08-30 13:24:19,649 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 39 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 933.3333333333334) internal successors, (2800), 3 states have internal predecessors, (2800), 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 13:24:19,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:24:19,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 930 of 2203 [2023-08-30 13:24:19,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:24:20,290 INFO L130 PetriNetUnfolder]: 129/268 cut-off events. [2023-08-30 13:24:20,290 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-30 13:24:20,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 567 conditions, 268 events. 129/268 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 892 event pairs, 48 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 561. Up to 136 conditions per place. [2023-08-30 13:24:20,291 INFO L137 encePairwiseOnDemand]: 2201/2203 looper letters, 42 selfloop transitions, 1 changer transitions 0/43 dead transitions. [2023-08-30 13:24:20,291 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 43 transitions, 198 flow [2023-08-30 13:24:20,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:24:20,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:24:20,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2832 transitions. [2023-08-30 13:24:20,297 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42850658193372676 [2023-08-30 13:24:20,297 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2832 transitions. [2023-08-30 13:24:20,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2832 transitions. [2023-08-30 13:24:20,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:24:20,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2832 transitions. [2023-08-30 13:24:20,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 944.0) internal successors, (2832), 3 states have internal predecessors, (2832), 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 13:24:20,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2203.0) internal successors, (8812), 4 states have internal predecessors, (8812), 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 13:24:20,308 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2203.0) internal successors, (8812), 4 states have internal predecessors, (8812), 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 13:24:20,308 INFO L175 Difference]: Start difference. First operand has 38 places, 39 transitions, 103 flow. Second operand 3 states and 2832 transitions. [2023-08-30 13:24:20,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 43 transitions, 198 flow [2023-08-30 13:24:20,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 43 transitions, 194 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 13:24:20,309 INFO L231 Difference]: Finished difference. Result has 38 places, 38 transitions, 99 flow [2023-08-30 13:24:20,309 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2203, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=38, PETRI_TRANSITIONS=38} [2023-08-30 13:24:20,310 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -36 predicate places. [2023-08-30 13:24:20,310 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 38 transitions, 99 flow [2023-08-30 13:24:20,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 933.3333333333334) internal successors, (2800), 3 states have internal predecessors, (2800), 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 13:24:20,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:24:20,311 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:24:20,319 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-30 13:24:20,519 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 13:24:20,522 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_changeErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 13:24:20,523 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:24:20,523 INFO L85 PathProgramCache]: Analyzing trace with hash 991368598, now seen corresponding path program 1 times [2023-08-30 13:24:20,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:24:20,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024892915] [2023-08-30 13:24:20,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:20,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:24:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:20,695 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 13:24:20,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:24:20,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024892915] [2023-08-30 13:24:20,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024892915] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:24:20,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:24:20,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:24:20,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421134660] [2023-08-30 13:24:20,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:24:20,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:24:20,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:24:20,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:24:20,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:24:20,715 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 930 out of 2203 [2023-08-30 13:24:20,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 38 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 933.3333333333334) internal successors, (2800), 3 states have internal predecessors, (2800), 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 13:24:20,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:24:20,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 930 of 2203 [2023-08-30 13:24:20,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:24:21,272 INFO L130 PetriNetUnfolder]: 111/234 cut-off events. [2023-08-30 13:24:21,272 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 13:24:21,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 513 conditions, 234 events. 111/234 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 747 event pairs, 30 based on Foata normal form. 0/209 useless extension candidates. Maximal degree in co-relation 507. Up to 136 conditions per place. [2023-08-30 13:24:21,273 INFO L137 encePairwiseOnDemand]: 2201/2203 looper letters, 41 selfloop transitions, 1 changer transitions 0/42 dead transitions. [2023-08-30 13:24:21,273 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 42 transitions, 192 flow [2023-08-30 13:24:21,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:24:21,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:24:21,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2831 transitions. [2023-08-30 13:24:21,278 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42835527311242244 [2023-08-30 13:24:21,278 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2831 transitions. [2023-08-30 13:24:21,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2831 transitions. [2023-08-30 13:24:21,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:24:21,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2831 transitions. [2023-08-30 13:24:21,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 943.6666666666666) internal successors, (2831), 3 states have internal predecessors, (2831), 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 13:24:21,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2203.0) internal successors, (8812), 4 states have internal predecessors, (8812), 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 13:24:21,289 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2203.0) internal successors, (8812), 4 states have internal predecessors, (8812), 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 13:24:21,290 INFO L175 Difference]: Start difference. First operand has 38 places, 38 transitions, 99 flow. Second operand 3 states and 2831 transitions. [2023-08-30 13:24:21,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 42 transitions, 192 flow [2023-08-30 13:24:21,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 42 transitions, 191 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:24:21,292 INFO L231 Difference]: Finished difference. Result has 38 places, 37 transitions, 98 flow [2023-08-30 13:24:21,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2203, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=36, 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=38, PETRI_TRANSITIONS=37} [2023-08-30 13:24:21,294 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -36 predicate places. [2023-08-30 13:24:21,294 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 37 transitions, 98 flow [2023-08-30 13:24:21,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 933.3333333333334) internal successors, (2800), 3 states have internal predecessors, (2800), 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 13:24:21,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:24:21,295 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:24:21,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 13:24:21,295 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_changeErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 13:24:21,295 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:24:21,295 INFO L85 PathProgramCache]: Analyzing trace with hash 991368601, now seen corresponding path program 1 times [2023-08-30 13:24:21,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:24:21,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309327536] [2023-08-30 13:24:21,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:21,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:24:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:21,822 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 13:24:21,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:24:21,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309327536] [2023-08-30 13:24:21,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309327536] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:24:21,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678024418] [2023-08-30 13:24:21,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:21,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:24:21,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:24:21,824 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 13:24:21,831 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 13:24:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:22,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-30 13:24:22,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:24:22,786 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 13:24:22,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 13:24:22,938 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 13:24:22,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678024418] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 13:24:22,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 13:24:22,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-30 13:24:22,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652241272] [2023-08-30 13:24:22,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 13:24:22,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:24:22,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:24:22,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:24:22,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:24:23,005 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 923 out of 2203 [2023-08-30 13:24:23,008 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 37 transitions, 98 flow. Second operand has 7 states, 7 states have (on average 925.1428571428571) internal successors, (6476), 7 states have internal predecessors, (6476), 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 13:24:23,008 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:24:23,008 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 923 of 2203 [2023-08-30 13:24:23,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:24:23,843 INFO L130 PetriNetUnfolder]: 111/239 cut-off events. [2023-08-30 13:24:23,843 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-08-30 13:24:23,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 239 events. 111/239 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 693 event pairs, 102 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 536. Up to 234 conditions per place. [2023-08-30 13:24:23,844 INFO L137 encePairwiseOnDemand]: 2195/2203 looper letters, 34 selfloop transitions, 8 changer transitions 0/42 dead transitions. [2023-08-30 13:24:23,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 42 transitions, 198 flow [2023-08-30 13:24:23,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:24:23,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:24:23,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5589 transitions. [2023-08-30 13:24:23,853 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4228325011348162 [2023-08-30 13:24:23,853 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 5589 transitions. [2023-08-30 13:24:23,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 5589 transitions. [2023-08-30 13:24:23,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:24:23,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 5589 transitions. [2023-08-30 13:24:23,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 931.5) internal successors, (5589), 6 states have internal predecessors, (5589), 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 13:24:23,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2203.0) internal successors, (15421), 7 states have internal predecessors, (15421), 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 13:24:23,899 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2203.0) internal successors, (15421), 7 states have internal predecessors, (15421), 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 13:24:23,899 INFO L175 Difference]: Start difference. First operand has 38 places, 37 transitions, 98 flow. Second operand 6 states and 5589 transitions. [2023-08-30 13:24:23,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 42 transitions, 198 flow [2023-08-30 13:24:23,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 42 transitions, 197 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:24:23,900 INFO L231 Difference]: Finished difference. Result has 45 places, 42 transitions, 163 flow [2023-08-30 13:24:23,900 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2203, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=163, PETRI_PLACES=45, PETRI_TRANSITIONS=42} [2023-08-30 13:24:23,901 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -29 predicate places. [2023-08-30 13:24:23,901 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 42 transitions, 163 flow [2023-08-30 13:24:23,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 925.1428571428571) internal successors, (6476), 7 states have internal predecessors, (6476), 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 13:24:23,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:24:23,902 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:24:23,913 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-30 13:24:24,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:24:24,112 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_changeErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 13:24:24,113 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:24:24,113 INFO L85 PathProgramCache]: Analyzing trace with hash -611529507, now seen corresponding path program 2 times [2023-08-30 13:24:24,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:24:24,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743056654] [2023-08-30 13:24:24,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:24,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:24:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:24,954 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 13:24:24,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:24:24,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743056654] [2023-08-30 13:24:24,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743056654] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:24:24,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230987948] [2023-08-30 13:24:24,955 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 13:24:24,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:24:24,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:24:24,956 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 13:24:24,958 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 13:24:26,114 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-30 13:24:26,114 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 13:24:26,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-30 13:24:26,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:24:26,190 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 13:24:26,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 13:24:26,404 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 13:24:26,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230987948] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 13:24:26,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 13:24:26,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-30 13:24:26,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372297162] [2023-08-30 13:24:26,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 13:24:26,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-30 13:24:26,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:24:26,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-30 13:24:26,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2023-08-30 13:24:26,760 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 921 out of 2203 [2023-08-30 13:24:26,766 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 42 transitions, 163 flow. Second operand has 17 states, 17 states have (on average 922.4705882352941) internal successors, (15682), 17 states have internal predecessors, (15682), 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 13:24:26,766 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:24:26,766 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 921 of 2203 [2023-08-30 13:24:26,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:24:29,360 INFO L130 PetriNetUnfolder]: 111/248 cut-off events. [2023-08-30 13:24:29,360 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2023-08-30 13:24:29,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 248 events. 111/248 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 674 event pairs, 102 based on Foata normal form. 9/235 useless extension candidates. Maximal degree in co-relation 594. Up to 234 conditions per place. [2023-08-30 13:24:29,361 INFO L137 encePairwiseOnDemand]: 2195/2203 looper letters, 34 selfloop transitions, 17 changer transitions 0/51 dead transitions. [2023-08-30 13:24:29,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 51 transitions, 313 flow [2023-08-30 13:24:29,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:24:29,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:24:29,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11120 transitions. [2023-08-30 13:24:29,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42063852322590406 [2023-08-30 13:24:29,376 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 11120 transitions. [2023-08-30 13:24:29,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 11120 transitions. [2023-08-30 13:24:29,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:24:29,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 11120 transitions. [2023-08-30 13:24:29,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 926.6666666666666) internal successors, (11120), 12 states have internal predecessors, (11120), 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 13:24:29,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 2203.0) internal successors, (28639), 13 states have internal predecessors, (28639), 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 13:24:29,409 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 2203.0) internal successors, (28639), 13 states have internal predecessors, (28639), 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 13:24:29,409 INFO L175 Difference]: Start difference. First operand has 45 places, 42 transitions, 163 flow. Second operand 12 states and 11120 transitions. [2023-08-30 13:24:29,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 51 transitions, 313 flow [2023-08-30 13:24:29,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 51 transitions, 303 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-30 13:24:29,411 INFO L231 Difference]: Finished difference. Result has 61 places, 51 transitions, 297 flow [2023-08-30 13:24:29,412 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2203, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=297, PETRI_PLACES=61, PETRI_TRANSITIONS=51} [2023-08-30 13:24:29,412 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -13 predicate places. [2023-08-30 13:24:29,412 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 51 transitions, 297 flow [2023-08-30 13:24:29,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 922.4705882352941) internal successors, (15682), 17 states have internal predecessors, (15682), 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 13:24:29,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:24:29,415 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:24:29,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-08-30 13:24:29,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:24:29,624 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_changeErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 13:24:29,624 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:24:29,624 INFO L85 PathProgramCache]: Analyzing trace with hash 343855965, now seen corresponding path program 3 times [2023-08-30 13:24:29,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:24:29,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39676658] [2023-08-30 13:24:29,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:24:29,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:24:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:24:30,643 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 13:24:30,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:24:30,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39676658] [2023-08-30 13:24:30,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39676658] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:24:30,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425170407] [2023-08-30 13:24:30,643 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-30 13:24:30,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:24:30,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:24:30,645 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 13:24:30,647 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 13:24:36,296 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-08-30 13:24:36,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 13:24:36,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 1267 conjuncts, 32 conjunts are in the unsatisfiable core [2023-08-30 13:24:36,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:24:36,552 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 13:24:36,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 13:24:37,118 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 13:24:37,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425170407] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 13:24:37,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 13:24:37,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2023-08-30 13:24:37,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867955135] [2023-08-30 13:24:37,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 13:24:37,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-08-30 13:24:37,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:24:37,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-08-30 13:24:37,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=870, Unknown=0, NotChecked=0, Total=1190 [2023-08-30 13:24:41,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 921 out of 2203 [2023-08-30 13:24:41,083 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 51 transitions, 297 flow. Second operand has 35 states, 35 states have (on average 922.2285714285714) internal successors, (32278), 35 states have internal predecessors, (32278), 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 13:24:41,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:24:41,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 921 of 2203 [2023-08-30 13:24:41,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:25:04,488 WARN L222 SmtUtils]: Spent 12.25s 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 13:25:17,976 WARN L222 SmtUtils]: Spent 9.95s 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 13:25:25,387 WARN L222 SmtUtils]: Spent 5.79s 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 13:25:35,823 INFO L130 PetriNetUnfolder]: 111/266 cut-off events. [2023-08-30 13:25:35,823 INFO L131 PetriNetUnfolder]: For 538/538 co-relation queries the response was YES. [2023-08-30 13:25:35,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 266 events. 111/266 cut-off events. For 538/538 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 650 event pairs, 102 based on Foata normal form. 18/262 useless extension candidates. Maximal degree in co-relation 721. Up to 229 conditions per place. [2023-08-30 13:25:35,824 INFO L137 encePairwiseOnDemand]: 2195/2203 looper letters, 30 selfloop transitions, 39 changer transitions 0/69 dead transitions. [2023-08-30 13:25:35,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 69 transitions, 567 flow [2023-08-30 13:25:35,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-08-30 13:25:35,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-08-30 13:25:35,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 23129 transitions. [2023-08-30 13:25:35,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41995460735360873 [2023-08-30 13:25:35,848 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 23129 transitions. [2023-08-30 13:25:35,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 23129 transitions. [2023-08-30 13:25:35,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:25:35,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 23129 transitions. [2023-08-30 13:25:35,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 925.16) internal successors, (23129), 25 states have internal predecessors, (23129), 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 13:25:35,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 2203.0) internal successors, (57278), 26 states have internal predecessors, (57278), 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 13:25:35,903 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 2203.0) internal successors, (57278), 26 states have internal predecessors, (57278), 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 13:25:35,903 INFO L175 Difference]: Start difference. First operand has 61 places, 51 transitions, 297 flow. Second operand 25 states and 23129 transitions. [2023-08-30 13:25:35,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 69 transitions, 567 flow [2023-08-30 13:25:35,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 69 transitions, 491 flow, removed 36 selfloop flow, removed 2 redundant places. [2023-08-30 13:25:35,907 INFO L231 Difference]: Finished difference. Result has 83 places, 69 transitions, 435 flow [2023-08-30 13:25:35,907 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2203, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=435, PETRI_PLACES=83, PETRI_TRANSITIONS=69} [2023-08-30 13:25:35,907 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 9 predicate places. [2023-08-30 13:25:35,907 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 69 transitions, 435 flow [2023-08-30 13:25:35,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 922.2285714285714) internal successors, (32278), 35 states have internal predecessors, (32278), 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 13:25:35,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:25:35,912 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:25:35,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-30 13:25:36,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-08-30 13:25:36,125 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_pc8736x_gpio_changeErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2023-08-30 13:25:36,125 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:25:36,125 INFO L85 PathProgramCache]: Analyzing trace with hash -636600227, now seen corresponding path program 4 times [2023-08-30 13:25:36,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:25:36,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002255645] [2023-08-30 13:25:36,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:25:36,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:25:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:25:37,808 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 13:25:37,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:25:37,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002255645] [2023-08-30 13:25:37,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002255645] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:25:37,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396964853] [2023-08-30 13:25:37,809 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-30 13:25:37,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:25:37,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:25:37,810 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 13:25:37,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-30 13:25:44,338 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-30 13:25:44,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 13:25:44,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 1471 conjuncts, 51 conjunts are in the unsatisfiable core [2023-08-30 13:25:44,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:25:44,996 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 13:25:44,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 13:25:46,478 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 13:25:46,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396964853] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 13:25:46,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 13:25:46,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 70 [2023-08-30 13:25:46,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923407554] [2023-08-30 13:25:46,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 13:25:46,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2023-08-30 13:25:46,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:25:46,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2023-08-30 13:25:46,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1224, Invalid=3746, Unknown=0, NotChecked=0, Total=4970 [2023-08-30 13:25:52,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 921 out of 2203 [2023-08-30 13:25:52,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 69 transitions, 435 flow. Second operand has 71 states, 71 states have (on average 922.112676056338) internal successors, (65470), 71 states have internal predecessors, (65470), 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 13:25:52,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:25:52,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 921 of 2203 [2023-08-30 13:25:52,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:28:29,787 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) Killed by 15