./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_current.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.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 51c838f928ac384d8fdc78da2570bfd8622730962319208ac7b8c7e3db94de0f --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 09:03:59,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 09:03:59,114 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 09:03:59,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 09:03:59,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 09:03:59,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 09:03:59,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 09:03:59,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 09:03:59,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 09:03:59,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 09:03:59,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 09:03:59,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 09:03:59,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 09:03:59,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 09:03:59,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 09:03:59,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 09:03:59,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 09:03:59,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 09:03:59,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 09:03:59,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 09:03:59,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 09:03:59,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 09:03:59,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 09:03:59,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 09:03:59,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 09:03:59,194 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 09:03:59,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 09:03:59,195 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 09:03:59,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 09:03:59,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 09:03:59,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 09:03:59,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 09:03:59,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 09:03:59,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 09:03:59,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 09:03:59,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 09:03:59,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 09:03:59,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 09:03:59,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 09:03:59,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 09:03:59,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 09:03:59,203 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 09:03:59,236 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 09:03:59,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 09:03:59,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 09:03:59,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 09:03:59,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 09:03:59,239 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 09:03:59,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 09:03:59,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 09:03:59,240 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 09:03:59,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 09:03:59,241 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 09:03:59,241 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 09:03:59,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 09:03:59,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 09:03:59,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 09:03:59,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 09:03:59,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 09:03:59,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 09:03:59,243 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 09:03:59,243 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 09:03:59,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 09:03:59,243 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 09:03:59,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 09:03:59,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 09:03:59,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 09:03:59,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 09:03:59,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:03:59,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 09:03:59,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 09:03:59,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 09:03:59,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 09:03:59,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 09:03:59,246 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 09:03:59,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 09:03:59,246 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 09:03:59,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 09:03:59,246 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 09:03:59,247 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51c838f928ac384d8fdc78da2570bfd8622730962319208ac7b8c7e3db94de0f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 09:03:59,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 09:03:59,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 09:03:59,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 09:03:59,542 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 09:03:59,542 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 09:03:59,544 INFO L432 ainManager$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_current.i [2023-08-30 09:04:00,676 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 09:04:01,144 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 09:04:01,145 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2023-08-30 09:04:01,183 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15835956a/e93d0612172349ad84e467f95d24efb0/FLAGf96e8c1cc [2023-08-30 09:04:01,205 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15835956a/e93d0612172349ad84e467f95d24efb0 [2023-08-30 09:04:01,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 09:04:01,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 09:04:01,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 09:04:01,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 09:04:01,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 09:04:01,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:04:01" (1/1) ... [2023-08-30 09:04:01,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1deca74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:01, skipping insertion in model container [2023-08-30 09:04:01,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:04:01" (1/1) ... [2023-08-30 09:04:01,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 09:04:01,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 09:04:01,633 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_current.i[5469,5482] [2023-08-30 09:04:04,214 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 09:04:04,796 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 09:04:04,799 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 09:04:04,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:04:04,896 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 09:04:04,945 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_current.i[5469,5482] [2023-08-30 09:04:05,110 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 09:04:05,211 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 09:04:05,212 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 09:04:05,222 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:04:05,865 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:04:05,866 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:04:05,866 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:04:05,866 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:04:05,866 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:04:05,866 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:04:05,866 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:04:05,872 INFO L208 MainTranslator]: Completed translation [2023-08-30 09:04:05,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:05 WrapperNode [2023-08-30 09:04:05,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 09:04:05,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 09:04:05,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 09:04:05,876 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 09:04:05,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:05" (1/1) ... [2023-08-30 09:04:05,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:05" (1/1) ... [2023-08-30 09:04:06,056 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 54, statements flattened = 750 [2023-08-30 09:04:06,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 09:04:06,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 09:04:06,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 09:04:06,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 09:04:06,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:05" (1/1) ... [2023-08-30 09:04:06,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:05" (1/1) ... [2023-08-30 09:04:06,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:05" (1/1) ... [2023-08-30 09:04:06,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:05" (1/1) ... [2023-08-30 09:04:06,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:05" (1/1) ... [2023-08-30 09:04:06,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:05" (1/1) ... [2023-08-30 09:04:06,160 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:05" (1/1) ... [2023-08-30 09:04:06,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:05" (1/1) ... [2023-08-30 09:04:06,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 09:04:06,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 09:04:06,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 09:04:06,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 09:04:06,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:05" (1/1) ... [2023-08-30 09:04:06,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:04:06,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:04:06,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 09:04:06,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 09:04:06,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 09:04:06,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 09:04:06,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 09:04:06,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 09:04:06,259 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2023-08-30 09:04:06,259 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2023-08-30 09:04:06,260 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2023-08-30 09:04:06,260 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2023-08-30 09:04:06,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 09:04:06,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 09:04:06,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-30 09:04:06,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 09:04:06,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 09:04:06,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 09:04:06,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 09:04:06,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-30 09:04:06,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 09:04:06,264 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 09:04:06,698 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 09:04:06,700 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 09:04:07,666 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 09:04:07,676 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 09:04:07,677 INFO L302 CfgBuilder]: Removed 25 assume(true) statements. [2023-08-30 09:04:07,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:04:07 BoogieIcfgContainer [2023-08-30 09:04:07,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 09:04:07,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 09:04:07,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 09:04:07,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 09:04:07,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 09:04:01" (1/3) ... [2023-08-30 09:04:07,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f4f110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:04:07, skipping insertion in model container [2023-08-30 09:04:07,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:04:05" (2/3) ... [2023-08-30 09:04:07,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f4f110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:04:07, skipping insertion in model container [2023-08-30 09:04:07,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:04:07" (3/3) ... [2023-08-30 09:04:07,686 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2023-08-30 09:04:07,694 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 09:04:07,702 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 09:04:07,703 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-08-30 09:04:07,703 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 09:04:07,869 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 09:04:07,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 800 places, 847 transitions, 1710 flow [2023-08-30 09:04:08,138 INFO L130 PetriNetUnfolder]: 54/845 cut-off events. [2023-08-30 09:04:08,138 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 09:04:08,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 854 conditions, 845 events. 54/845 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1148 event pairs, 0 based on Foata normal form. 0/763 useless extension candidates. Maximal degree in co-relation 678. Up to 9 conditions per place. [2023-08-30 09:04:08,147 INFO L82 GeneralOperation]: Start removeDead. Operand has 800 places, 847 transitions, 1710 flow [2023-08-30 09:04:08,156 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 790 places, 837 transitions, 1683 flow [2023-08-30 09:04:08,159 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 09:04:08,167 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 790 places, 837 transitions, 1683 flow [2023-08-30 09:04:08,169 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 790 places, 837 transitions, 1683 flow [2023-08-30 09:04:08,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 790 places, 837 transitions, 1683 flow [2023-08-30 09:04:08,334 INFO L130 PetriNetUnfolder]: 54/837 cut-off events. [2023-08-30 09:04:08,335 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 09:04:08,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 845 conditions, 837 events. 54/837 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1093 event pairs, 0 based on Foata normal form. 0/755 useless extension candidates. Maximal degree in co-relation 678. Up to 9 conditions per place. [2023-08-30 09:04:08,344 INFO L119 LiptonReduction]: Number of co-enabled transitions 12606 [2023-08-30 09:05:22,490 WARN L222 SmtUtils]: Spent 8.38s on a formula simplification that was a NOOP. DAG size: 511 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:05:28,937 WARN L222 SmtUtils]: Spent 6.43s on a formula simplification that was a NOOP. DAG size: 467 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:06:11,909 WARN L222 SmtUtils]: Spent 41.45s on a formula simplification. DAG size of input: 629 DAG size of output: 627 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:06:56,705 WARN L222 SmtUtils]: Spent 44.78s on a formula simplification that was a NOOP. DAG size: 581 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:09:20,990 WARN L222 SmtUtils]: Spent 2.40m on a formula simplification. DAG size of input: 635 DAG size of output: 631 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:10:21,134 WARN L222 SmtUtils]: Spent 1.00m 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 09:10:36,214 INFO L134 LiptonReduction]: Checked pairs total: 10533 [2023-08-30 09:10:36,214 INFO L136 LiptonReduction]: Total number of compositions: 1001 [2023-08-30 09:10:36,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 09:10:36,230 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;@33fb67c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 09:10:36,230 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-08-30 09:10:36,239 INFO L130 PetriNetUnfolder]: 2/5 cut-off events. [2023-08-30 09:10:36,239 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:10:36,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:10:36,240 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 09:10:36,242 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:10:36,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:10:36,247 INFO L85 PathProgramCache]: Analyzing trace with hash 3125508, now seen corresponding path program 1 times [2023-08-30 09:10:36,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:10:36,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710375575] [2023-08-30 09:10:36,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:36,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:10:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:36,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:36,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:10:36,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710375575] [2023-08-30 09:10:36,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710375575] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:10:36,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:10:36,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:10:36,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088809201] [2023-08-30 09:10:36,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:10:36,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 09:10:36,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:10:36,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 09:10:36,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 09:10:36,783 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 795 out of 1848 [2023-08-30 09:10:36,791 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 74 transitions, 157 flow. Second operand has 2 states, 2 states have (on average 796.5) internal successors, (1593), 2 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:36,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:10:36,795 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 795 of 1848 [2023-08-30 09:10:36,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:10:37,067 INFO L130 PetriNetUnfolder]: 88/181 cut-off events. [2023-08-30 09:10:37,067 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2023-08-30 09:10:37,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 181 events. 88/181 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 583 event pairs, 78 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 248. Up to 182 conditions per place. [2023-08-30 09:10:37,070 INFO L137 encePairwiseOnDemand]: 1815/1848 looper letters, 38 selfloop transitions, 0 changer transitions 3/41 dead transitions. [2023-08-30 09:10:37,070 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 41 transitions, 173 flow [2023-08-30 09:10:37,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 09:10:37,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 09:10:37,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1664 transitions. [2023-08-30 09:10:37,088 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45021645021645024 [2023-08-30 09:10:37,090 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1664 transitions. [2023-08-30 09:10:37,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1664 transitions. [2023-08-30 09:10:37,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:10:37,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1664 transitions. [2023-08-30 09:10:37,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 832.0) internal successors, (1664), 2 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:37,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1848.0) internal successors, (5544), 3 states have internal predecessors, (5544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:37,123 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1848.0) internal successors, (5544), 3 states have internal predecessors, (5544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:37,125 INFO L175 Difference]: Start difference. First operand has 59 places, 74 transitions, 157 flow. Second operand 2 states and 1664 transitions. [2023-08-30 09:10:37,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 41 transitions, 173 flow [2023-08-30 09:10:37,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 41 transitions, 168 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 09:10:37,130 INFO L231 Difference]: Finished difference. Result has 36 places, 38 transitions, 80 flow [2023-08-30 09:10:37,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1848, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=80, PETRI_PLACES=36, PETRI_TRANSITIONS=38} [2023-08-30 09:10:37,136 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -23 predicate places. [2023-08-30 09:10:37,137 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 38 transitions, 80 flow [2023-08-30 09:10:37,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 796.5) internal successors, (1593), 2 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:37,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:10:37,139 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 09:10:37,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 09:10:37,139 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:10:37,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:10:37,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1291118021, now seen corresponding path program 1 times [2023-08-30 09:10:37,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:10:37,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937290131] [2023-08-30 09:10:37,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:37,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:10:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:37,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:37,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:10:37,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937290131] [2023-08-30 09:10:37,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937290131] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:10:37,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:10:37,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:10:37,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388371492] [2023-08-30 09:10:37,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:10:37,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:10:37,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:10:37,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:10:37,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:10:37,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 785 out of 1848 [2023-08-30 09:10:37,498 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 38 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 786.6666666666666) internal successors, (2360), 3 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:37,498 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:10:37,498 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 785 of 1848 [2023-08-30 09:10:37,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:10:37,828 INFO L130 PetriNetUnfolder]: 111/233 cut-off events. [2023-08-30 09:10:37,829 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 09:10:37,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 233 events. 111/233 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 792 event pairs, 102 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 480. Up to 120 conditions per place. [2023-08-30 09:10:37,831 INFO L137 encePairwiseOnDemand]: 1842/1848 looper letters, 45 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2023-08-30 09:10:37,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 49 transitions, 204 flow [2023-08-30 09:10:37,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:10:37,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:10:37,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2406 transitions. [2023-08-30 09:10:37,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43398268398268397 [2023-08-30 09:10:37,838 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2406 transitions. [2023-08-30 09:10:37,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2406 transitions. [2023-08-30 09:10:37,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:10:37,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2406 transitions. [2023-08-30 09:10:37,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 802.0) internal successors, (2406), 3 states have internal predecessors, (2406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:37,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1848.0) internal successors, (7392), 4 states have internal predecessors, (7392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:37,858 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1848.0) internal successors, (7392), 4 states have internal predecessors, (7392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:37,858 INFO L175 Difference]: Start difference. First operand has 36 places, 38 transitions, 80 flow. Second operand 3 states and 2406 transitions. [2023-08-30 09:10:37,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 49 transitions, 204 flow [2023-08-30 09:10:37,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 49 transitions, 204 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 09:10:37,860 INFO L231 Difference]: Finished difference. Result has 33 places, 36 transitions, 84 flow [2023-08-30 09:10:37,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1848, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=33, PETRI_TRANSITIONS=36} [2023-08-30 09:10:37,861 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -26 predicate places. [2023-08-30 09:10:37,861 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 36 transitions, 84 flow [2023-08-30 09:10:37,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 786.6666666666666) internal successors, (2360), 3 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:37,866 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:10:37,866 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 09:10:37,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 09:10:37,868 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:10:37,871 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:10:37,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1369938769, now seen corresponding path program 1 times [2023-08-30 09:10:37,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:10:37,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808472662] [2023-08-30 09:10:37,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:37,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:10:37,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:38,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:38,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:10:38,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808472662] [2023-08-30 09:10:38,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808472662] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:10:38,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:10:38,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 09:10:38,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459668180] [2023-08-30 09:10:38,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:10:38,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:10:38,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:10:38,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:10:38,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:10:38,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 788 out of 1848 [2023-08-30 09:10:38,176 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 36 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 790.0) internal successors, (2370), 3 states have internal predecessors, (2370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:38,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:10:38,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 788 of 1848 [2023-08-30 09:10:38,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:10:38,716 INFO L130 PetriNetUnfolder]: 111/234 cut-off events. [2023-08-30 09:10:38,716 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 09:10:38,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 234 events. 111/234 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 797 event pairs, 102 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 486. Up to 233 conditions per place. [2023-08-30 09:10:38,719 INFO L137 encePairwiseOnDemand]: 1843/1848 looper letters, 34 selfloop transitions, 3 changer transitions 0/37 dead transitions. [2023-08-30 09:10:38,719 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 37 transitions, 160 flow [2023-08-30 09:10:38,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:10:38,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:10:38,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2403 transitions. [2023-08-30 09:10:38,725 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43344155844155846 [2023-08-30 09:10:38,725 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2403 transitions. [2023-08-30 09:10:38,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2403 transitions. [2023-08-30 09:10:38,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:10:38,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2403 transitions. [2023-08-30 09:10:38,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 801.0) internal successors, (2403), 3 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:38,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1848.0) internal successors, (7392), 4 states have internal predecessors, (7392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:38,743 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1848.0) internal successors, (7392), 4 states have internal predecessors, (7392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:38,744 INFO L175 Difference]: Start difference. First operand has 33 places, 36 transitions, 84 flow. Second operand 3 states and 2403 transitions. [2023-08-30 09:10:38,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 37 transitions, 160 flow [2023-08-30 09:10:38,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 09:10:38,746 INFO L231 Difference]: Finished difference. Result has 34 places, 37 transitions, 93 flow [2023-08-30 09:10:38,746 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1848, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=34, PETRI_TRANSITIONS=37} [2023-08-30 09:10:38,747 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -25 predicate places. [2023-08-30 09:10:38,748 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 37 transitions, 93 flow [2023-08-30 09:10:38,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 790.0) internal successors, (2370), 3 states have internal predecessors, (2370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:38,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:10:38,750 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:10:38,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 09:10:38,751 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_changeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:10:38,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:10:38,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1940464591, now seen corresponding path program 1 times [2023-08-30 09:10:38,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:10:38,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454939499] [2023-08-30 09:10:38,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:38,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:10:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:39,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:39,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:10:39,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454939499] [2023-08-30 09:10:39,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454939499] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:10:39,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:10:39,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 09:10:39,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048491167] [2023-08-30 09:10:39,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:10:39,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:10:39,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:10:39,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:10:39,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:10:39,864 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 787 out of 1848 [2023-08-30 09:10:39,867 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 37 transitions, 93 flow. Second operand has 3 states, 3 states have (on average 789.3333333333334) internal successors, (2368), 3 states have internal predecessors, (2368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:39,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:10:39,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 787 of 1848 [2023-08-30 09:10:39,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:10:40,142 INFO L130 PetriNetUnfolder]: 61/130 cut-off events. [2023-08-30 09:10:40,143 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-30 09:10:40,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 130 events. 61/130 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 390 event pairs, 51 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 274. Up to 130 conditions per place. [2023-08-30 09:10:40,144 INFO L137 encePairwiseOnDemand]: 1844/1848 looper letters, 36 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2023-08-30 09:10:40,144 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 38 transitions, 171 flow [2023-08-30 09:10:40,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:10:40,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:10:40,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2400 transitions. [2023-08-30 09:10:40,152 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4329004329004329 [2023-08-30 09:10:40,152 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2400 transitions. [2023-08-30 09:10:40,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2400 transitions. [2023-08-30 09:10:40,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:10:40,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2400 transitions. [2023-08-30 09:10:40,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 800.0) internal successors, (2400), 3 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:40,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1848.0) internal successors, (7392), 4 states have internal predecessors, (7392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:40,168 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1848.0) internal successors, (7392), 4 states have internal predecessors, (7392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:40,168 INFO L175 Difference]: Start difference. First operand has 34 places, 37 transitions, 93 flow. Second operand 3 states and 2400 transitions. [2023-08-30 09:10:40,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 38 transitions, 171 flow [2023-08-30 09:10:40,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 38 transitions, 166 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 09:10:40,170 INFO L231 Difference]: Finished difference. Result has 36 places, 38 transitions, 102 flow [2023-08-30 09:10:40,171 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1848, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=36, PETRI_TRANSITIONS=38} [2023-08-30 09:10:40,172 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -23 predicate places. [2023-08-30 09:10:40,172 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 38 transitions, 102 flow [2023-08-30 09:10:40,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 789.3333333333334) internal successors, (2368), 3 states have internal predecessors, (2368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:40,173 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:10:40,173 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:10:40,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 09:10:40,174 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_changeErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:10:40,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:10:40,174 INFO L85 PathProgramCache]: Analyzing trace with hash -720380223, now seen corresponding path program 1 times [2023-08-30 09:10:40,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:10:40,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578442061] [2023-08-30 09:10:40,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:40,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:10:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:40,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 09:10:40,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:10:40,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578442061] [2023-08-30 09:10:40,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578442061] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:10:40,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:10:40,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 09:10:40,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976029798] [2023-08-30 09:10:40,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:10:40,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:10:40,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:10:40,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:10:40,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:10:40,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 790 out of 1848 [2023-08-30 09:10:40,520 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 38 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 792.6666666666666) internal successors, (2378), 3 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:40,520 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:10:40,520 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 790 of 1848 [2023-08-30 09:10:40,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:10:41,184 INFO L130 PetriNetUnfolder]: 52/113 cut-off events. [2023-08-30 09:10:41,185 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-30 09:10:41,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 113 events. 52/113 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 331 event pairs, 6 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 244. Up to 68 conditions per place. [2023-08-30 09:10:41,186 INFO L137 encePairwiseOnDemand]: 1846/1848 looper letters, 41 selfloop transitions, 1 changer transitions 0/42 dead transitions. [2023-08-30 09:10:41,186 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 42 transitions, 195 flow [2023-08-30 09:10:41,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:10:41,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:10:41,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2411 transitions. [2023-08-30 09:10:41,192 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4348845598845599 [2023-08-30 09:10:41,193 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2411 transitions. [2023-08-30 09:10:41,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2411 transitions. [2023-08-30 09:10:41,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:10:41,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2411 transitions. [2023-08-30 09:10:41,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 803.6666666666666) internal successors, (2411), 3 states have internal predecessors, (2411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:41,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1848.0) internal successors, (7392), 4 states have internal predecessors, (7392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:41,207 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1848.0) internal successors, (7392), 4 states have internal predecessors, (7392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:41,207 INFO L175 Difference]: Start difference. First operand has 36 places, 38 transitions, 102 flow. Second operand 3 states and 2411 transitions. [2023-08-30 09:10:41,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 42 transitions, 195 flow [2023-08-30 09:10:41,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 42 transitions, 191 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 09:10:41,209 INFO L231 Difference]: Finished difference. Result has 36 places, 37 transitions, 98 flow [2023-08-30 09:10:41,210 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1848, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=36, PETRI_TRANSITIONS=37} [2023-08-30 09:10:41,215 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -23 predicate places. [2023-08-30 09:10:41,215 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 37 transitions, 98 flow [2023-08-30 09:10:41,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 792.6666666666666) internal successors, (2378), 3 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:41,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:10:41,216 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:10:41,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 09:10:41,217 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:10:41,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:10:41,217 INFO L85 PathProgramCache]: Analyzing trace with hash -720380551, now seen corresponding path program 1 times [2023-08-30 09:10:41,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:10:41,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249549514] [2023-08-30 09:10:41,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:41,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:10:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:41,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:41,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:10:41,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249549514] [2023-08-30 09:10:41,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249549514] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:10:41,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172453103] [2023-08-30 09:10:41,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:41,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:10:41,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:10:41,887 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:10:41,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 09:10:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:42,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 1109 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-30 09:10:42,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:10:42,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 09:10:42,916 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 09:10:42,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172453103] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:10:42,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 09:10:42,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-30 09:10:42,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240739537] [2023-08-30 09:10:42,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:10:42,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:10:42,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:10:42,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:10:42,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:10:42,970 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 790 out of 1848 [2023-08-30 09:10:42,972 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 37 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 792.6666666666666) internal successors, (2378), 3 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:42,973 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:10:42,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 790 of 1848 [2023-08-30 09:10:42,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:10:43,865 INFO L130 PetriNetUnfolder]: 43/96 cut-off events. [2023-08-30 09:10:43,866 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 09:10:43,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 96 events. 43/96 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 252 event pairs, 6 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 216. Up to 51 conditions per place. [2023-08-30 09:10:43,867 INFO L137 encePairwiseOnDemand]: 1846/1848 looper letters, 40 selfloop transitions, 1 changer transitions 0/41 dead transitions. [2023-08-30 09:10:43,867 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 41 transitions, 189 flow [2023-08-30 09:10:43,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:10:43,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:10:43,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2410 transitions. [2023-08-30 09:10:43,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4347041847041847 [2023-08-30 09:10:43,874 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2410 transitions. [2023-08-30 09:10:43,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2410 transitions. [2023-08-30 09:10:43,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:10:43,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2410 transitions. [2023-08-30 09:10:43,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 803.3333333333334) internal successors, (2410), 3 states have internal predecessors, (2410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:43,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1848.0) internal successors, (7392), 4 states have internal predecessors, (7392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:43,888 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1848.0) internal successors, (7392), 4 states have internal predecessors, (7392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:43,888 INFO L175 Difference]: Start difference. First operand has 36 places, 37 transitions, 98 flow. Second operand 3 states and 2410 transitions. [2023-08-30 09:10:43,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 41 transitions, 189 flow [2023-08-30 09:10:43,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 41 transitions, 188 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:10:43,891 INFO L231 Difference]: Finished difference. Result has 36 places, 36 transitions, 97 flow [2023-08-30 09:10:43,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1848, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=36, PETRI_TRANSITIONS=36} [2023-08-30 09:10:43,894 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -23 predicate places. [2023-08-30 09:10:43,894 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 36 transitions, 97 flow [2023-08-30 09:10:43,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 792.6666666666666) internal successors, (2378), 3 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:43,895 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:10:43,895 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:10:43,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 09:10:44,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-30 09:10:44,105 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_changeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:10:44,105 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:10:44,105 INFO L85 PathProgramCache]: Analyzing trace with hash -720380358, now seen corresponding path program 1 times [2023-08-30 09:10:44,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:10:44,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589302031] [2023-08-30 09:10:44,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:44,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:10:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:44,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:44,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:10:44,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589302031] [2023-08-30 09:10:44,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589302031] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:10:44,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548695584] [2023-08-30 09:10:44,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:44,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:10:44,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:10:44,698 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:10:44,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-30 09:10:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:45,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-30 09:10:45,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:10:45,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:45,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:10:45,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:45,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548695584] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:10:45,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:10:45,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-30 09:10:45,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594091345] [2023-08-30 09:10:45,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:10:45,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 09:10:45,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:10:45,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 09:10:45,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-08-30 09:10:46,000 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 783 out of 1848 [2023-08-30 09:10:46,004 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 36 transitions, 97 flow. Second operand has 7 states, 7 states have (on average 784.8571428571429) internal successors, (5494), 7 states have internal predecessors, (5494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:46,005 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:10:46,005 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 783 of 1848 [2023-08-30 09:10:46,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:10:46,427 INFO L130 PetriNetUnfolder]: 43/101 cut-off events. [2023-08-30 09:10:46,427 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-30 09:10:46,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 101 events. 43/101 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 261 event pairs, 33 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 237. Up to 96 conditions per place. [2023-08-30 09:10:46,428 INFO L137 encePairwiseOnDemand]: 1840/1848 looper letters, 33 selfloop transitions, 8 changer transitions 0/41 dead transitions. [2023-08-30 09:10:46,429 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 41 transitions, 195 flow [2023-08-30 09:10:46,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 09:10:46,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 09:10:46,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4748 transitions. [2023-08-30 09:10:46,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4282106782106782 [2023-08-30 09:10:46,440 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4748 transitions. [2023-08-30 09:10:46,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4748 transitions. [2023-08-30 09:10:46,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:10:46,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4748 transitions. [2023-08-30 09:10:46,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 791.3333333333334) internal successors, (4748), 6 states have internal predecessors, (4748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:46,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1848.0) internal successors, (12936), 7 states have internal predecessors, (12936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:46,464 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1848.0) internal successors, (12936), 7 states have internal predecessors, (12936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:46,465 INFO L175 Difference]: Start difference. First operand has 36 places, 36 transitions, 97 flow. Second operand 6 states and 4748 transitions. [2023-08-30 09:10:46,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 41 transitions, 195 flow [2023-08-30 09:10:46,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 41 transitions, 194 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:10:46,468 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 162 flow [2023-08-30 09:10:46,468 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1848, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=162, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2023-08-30 09:10:46,469 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -16 predicate places. [2023-08-30 09:10:46,469 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 162 flow [2023-08-30 09:10:46,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 784.8571428571429) internal successors, (5494), 7 states have internal predecessors, (5494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:46,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:10:46,471 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:10:46,484 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-30 09:10:46,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-08-30 09:10:46,684 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_changeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:10:46,684 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:10:46,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1938527857, now seen corresponding path program 2 times [2023-08-30 09:10:46,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:10:46,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907850088] [2023-08-30 09:10:46,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:46,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:10:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:47,516 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:47,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:10:47,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907850088] [2023-08-30 09:10:47,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907850088] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:10:47,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009948744] [2023-08-30 09:10:47,521 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 09:10:47,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:10:47,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:10:47,525 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:10:47,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-30 09:10:49,125 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-30 09:10:49,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:10:49,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-30 09:10:49,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:10:49,226 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:49,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:10:49,552 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:49,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009948744] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:10:49,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:10:49,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-30 09:10:49,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605132075] [2023-08-30 09:10:49,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:10:49,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-30 09:10:49,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:10:49,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-30 09:10:49,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2023-08-30 09:10:49,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 781 out of 1848 [2023-08-30 09:10:49,949 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 162 flow. Second operand has 17 states, 17 states have (on average 782.3529411764706) internal successors, (13300), 17 states have internal predecessors, (13300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:49,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:10:49,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 781 of 1848 [2023-08-30 09:10:49,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:10:52,306 INFO L130 PetriNetUnfolder]: 43/110 cut-off events. [2023-08-30 09:10:52,306 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2023-08-30 09:10:52,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 110 events. 43/110 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 266 event pairs, 33 based on Foata normal form. 9/104 useless extension candidates. Maximal degree in co-relation 295. Up to 96 conditions per place. [2023-08-30 09:10:52,308 INFO L137 encePairwiseOnDemand]: 1840/1848 looper letters, 33 selfloop transitions, 17 changer transitions 0/50 dead transitions. [2023-08-30 09:10:52,308 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 50 transitions, 310 flow [2023-08-30 09:10:52,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 09:10:52,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 09:10:52,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 9439 transitions. [2023-08-30 09:10:52,338 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4256403318903319 [2023-08-30 09:10:52,338 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 9439 transitions. [2023-08-30 09:10:52,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 9439 transitions. [2023-08-30 09:10:52,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:10:52,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 9439 transitions. [2023-08-30 09:10:52,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 786.5833333333334) internal successors, (9439), 12 states have internal predecessors, (9439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:52,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 1848.0) internal successors, (24024), 13 states have internal predecessors, (24024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:52,394 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 1848.0) internal successors, (24024), 13 states have internal predecessors, (24024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:52,395 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 162 flow. Second operand 12 states and 9439 transitions. [2023-08-30 09:10:52,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 50 transitions, 310 flow [2023-08-30 09:10:52,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 50 transitions, 300 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-30 09:10:52,399 INFO L231 Difference]: Finished difference. Result has 59 places, 50 transitions, 296 flow [2023-08-30 09:10:52,399 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1848, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=296, PETRI_PLACES=59, PETRI_TRANSITIONS=50} [2023-08-30 09:10:52,400 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 0 predicate places. [2023-08-30 09:10:52,401 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 50 transitions, 296 flow [2023-08-30 09:10:52,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 782.3529411764706) internal successors, (13300), 17 states have internal predecessors, (13300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:10:52,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:10:52,404 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:10:52,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-30 09:10:52,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:10:52,616 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_changeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:10:52,617 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:10:52,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1053404719, now seen corresponding path program 3 times [2023-08-30 09:10:52,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:10:52,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164577770] [2023-08-30 09:10:52,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:10:52,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:10:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:10:54,024 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:10:54,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:10:54,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164577770] [2023-08-30 09:10:54,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164577770] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:10:54,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131297222] [2023-08-30 09:10:54,025 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-30 09:10:54,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:10:54,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:10:54,029 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:10:54,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-30 09:11:03,006 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-08-30 09:11:03,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:11:03,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 1267 conjuncts, 34 conjunts are in the unsatisfiable core [2023-08-30 09:11:03,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:11:03,385 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:11:03,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:11:04,516 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:11:04,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131297222] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:11:04,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:11:04,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2023-08-30 09:11:04,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016879364] [2023-08-30 09:11:04,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:11:04,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-08-30 09:11:04,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:11:04,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-08-30 09:11:04,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=870, Unknown=0, NotChecked=0, Total=1190 [2023-08-30 09:11:08,377 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 781 out of 1848 [2023-08-30 09:11:08,389 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 50 transitions, 296 flow. Second operand has 35 states, 35 states have (on average 782.1714285714286) internal successors, (27376), 35 states have internal predecessors, (27376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:11:08,389 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:11:08,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 781 of 1848 [2023-08-30 09:11:08,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:11:25,504 WARN L222 SmtUtils]: Spent 10.48s on a formula simplification. DAG size of input: 67 DAG size of output: 47 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:11:38,501 WARN L222 SmtUtils]: Spent 11.21s on a formula simplification. DAG size of input: 61 DAG size of output: 43 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:11:59,281 INFO L130 PetriNetUnfolder]: 43/128 cut-off events. [2023-08-30 09:11:59,281 INFO L131 PetriNetUnfolder]: For 532/532 co-relation queries the response was YES. [2023-08-30 09:11:59,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 128 events. 43/128 cut-off events. For 532/532 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 257 event pairs, 33 based on Foata normal form. 18/131 useless extension candidates. Maximal degree in co-relation 422. Up to 91 conditions per place. [2023-08-30 09:11:59,282 INFO L137 encePairwiseOnDemand]: 1840/1848 looper letters, 29 selfloop transitions, 39 changer transitions 0/68 dead transitions. [2023-08-30 09:11:59,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 68 transitions, 564 flow [2023-08-30 09:11:59,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-08-30 09:11:59,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-08-30 09:11:59,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 19628 transitions. [2023-08-30 09:11:59,315 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42484848484848486 [2023-08-30 09:11:59,316 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 19628 transitions. [2023-08-30 09:11:59,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 19628 transitions. [2023-08-30 09:11:59,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:11:59,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 19628 transitions. [2023-08-30 09:11:59,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 785.12) internal successors, (19628), 25 states have internal predecessors, (19628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:11:59,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 1848.0) internal successors, (48048), 26 states have internal predecessors, (48048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:11:59,391 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 1848.0) internal successors, (48048), 26 states have internal predecessors, (48048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:11:59,391 INFO L175 Difference]: Start difference. First operand has 59 places, 50 transitions, 296 flow. Second operand 25 states and 19628 transitions. [2023-08-30 09:11:59,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 68 transitions, 564 flow [2023-08-30 09:11:59,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 68 transitions, 488 flow, removed 36 selfloop flow, removed 2 redundant places. [2023-08-30 09:11:59,396 INFO L231 Difference]: Finished difference. Result has 81 places, 68 transitions, 434 flow [2023-08-30 09:11:59,396 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1848, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=434, PETRI_PLACES=81, PETRI_TRANSITIONS=68} [2023-08-30 09:11:59,396 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 22 predicate places. [2023-08-30 09:11:59,397 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 68 transitions, 434 flow [2023-08-30 09:11:59,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 782.1714285714286) internal successors, (27376), 35 states have internal predecessors, (27376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:11:59,401 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:11:59,401 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:11:59,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-30 09:11:59,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:11:59,617 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_changeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:11:59,617 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:11:59,617 INFO L85 PathProgramCache]: Analyzing trace with hash -259280751, now seen corresponding path program 4 times [2023-08-30 09:11:59,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:11:59,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931287355] [2023-08-30 09:11:59,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:11:59,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:12:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:12:01,645 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:12:01,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:12:01,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931287355] [2023-08-30 09:12:01,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931287355] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:12:01,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255864437] [2023-08-30 09:12:01,646 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-30 09:12:01,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:12:01,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:12:01,648 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:12:01,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-30 09:12:06,886 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-30 09:12:06,886 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:12:06,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 1471 conjuncts, 51 conjunts are in the unsatisfiable core [2023-08-30 09:12:06,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:12:07,944 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:12:07,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:12:09,234 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:12:09,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255864437] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:12:09,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:12:09,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 64 [2023-08-30 09:12:09,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743197329] [2023-08-30 09:12:09,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:12:09,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2023-08-30 09:12:09,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:12:09,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2023-08-30 09:12:09,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1198, Invalid=2962, Unknown=0, NotChecked=0, Total=4160 [2023-08-30 09:12:13,043 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 783 out of 1848 [2023-08-30 09:12:13,067 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 68 transitions, 434 flow. Second operand has 65 states, 65 states have (on average 784.0923076923077) internal successors, (50966), 65 states have internal predecessors, (50966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:12:13,067 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:12:13,068 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 783 of 1848 [2023-08-30 09:12:13,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:12:20,280 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_external_alloc_~size#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 1) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_external_alloc_~i~0#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 15) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 13) 4294967296) .cse0) (< (mod (+ 19 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 11) 4294967296) .cse0) (< (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0))) is different from false [2023-08-30 09:13:54,050 WARN L222 SmtUtils]: Spent 1.03m on a formula simplification that was a NOOP. DAG size: 91 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:13:56,246 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_external_alloc_~size#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 1) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_external_alloc_~i~0#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 15) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 13) 4294967296) .cse0) (< (mod (+ 19 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 11) 4294967296) .cse0) (< (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0))) is different from false [2023-08-30 09:14:33,246 WARN L222 SmtUtils]: Spent 24.24s on a formula simplification that was a NOOP. DAG size: 67 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:15:45,489 WARN L222 SmtUtils]: Spent 43.61s on a formula simplification that was a NOOP. DAG size: 83 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:15:47,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 09:15:49,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 09:15:51,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 09:16:33,136 WARN L222 SmtUtils]: Spent 20.92s on a formula simplification that was a NOOP. DAG size: 63 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:16:35,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 09:17:34,875 WARN L222 SmtUtils]: Spent 44.16s on a formula simplification that was a NOOP. DAG size: 79 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Killed by 15