./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_get_pc8736x_gpio_set.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_get_pc8736x_gpio_set.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 070c6009ff827451d8dab682a6835a3a11ca17731824d2cb72abd5ca38de17b6 --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 17:27:28,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 17:27:28,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 17:27:28,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 17:27:28,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 17:27:28,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 17:27:28,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 17:27:28,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 17:27:28,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 17:27:28,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 17:27:28,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 17:27:28,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 17:27:28,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 17:27:28,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 17:27:28,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 17:27:28,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 17:27:28,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 17:27:28,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 17:27:28,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 17:27:28,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 17:27:28,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 17:27:28,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 17:27:28,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 17:27:28,109 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 17:27:28,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 17:27:28,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 17:27:28,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 17:27:28,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 17:27:28,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 17:27:28,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 17:27:28,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 17:27:28,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 17:27:28,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 17:27:28,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 17:27:28,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 17:27:28,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 17:27:28,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 17:27:28,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 17:27:28,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 17:27:28,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 17:27:28,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 17:27:28,131 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 17:27:28,161 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 17:27:28,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 17:27:28,163 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 17:27:28,163 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 17:27:28,164 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 17:27:28,164 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 17:27:28,164 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 17:27:28,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 17:27:28,165 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 17:27:28,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 17:27:28,166 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 17:27:28,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 17:27:28,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 17:27:28,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 17:27:28,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 17:27:28,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 17:27:28,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 17:27:28,167 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 17:27:28,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 17:27:28,167 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 17:27:28,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 17:27:28,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 17:27:28,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 17:27:28,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 17:27:28,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:27:28,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 17:27:28,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 17:27:28,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 17:27:28,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 17:27:28,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 17:27:28,169 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 17:27:28,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 17:27:28,169 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 17:27:28,170 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 17:27:28,170 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 17:27:28,170 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 070c6009ff827451d8dab682a6835a3a11ca17731824d2cb72abd5ca38de17b6 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 17:27:28,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 17:27:28,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 17:27:28,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 17:27:28,483 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 17:27:28,483 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 17:27:28,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_get_pc8736x_gpio_set.i [2023-08-30 17:27:29,655 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 17:27:30,142 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 17:27:30,143 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_get_pc8736x_gpio_set.i [2023-08-30 17:27:30,184 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e80bf738/288a7541cc114bf088cbeea88ed6e033/FLAGe1e320d33 [2023-08-30 17:27:30,198 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e80bf738/288a7541cc114bf088cbeea88ed6e033 [2023-08-30 17:27:30,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 17:27:30,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 17:27:30,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 17:27:30,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 17:27:30,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 17:27:30,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:27:30" (1/1) ... [2023-08-30 17:27:30,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe44fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:27:30, skipping insertion in model container [2023-08-30 17:27:30,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:27:30" (1/1) ... [2023-08-30 17:27:30,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 17:27:30,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 17:27:30,589 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_get_pc8736x_gpio_set.i[5469,5482] [2023-08-30 17:27:33,107 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 17:27:33,517 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 17:27:33,518 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 17:27:33,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:27:33,577 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 17:27:33,589 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_get_pc8736x_gpio_set.i[5469,5482] [2023-08-30 17:27:33,770 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 17:27:33,839 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 17:27:33,839 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 17:27:33,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:27:34,416 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:27:34,420 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:27:34,433 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:27:34,433 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:27:34,433 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:27:34,433 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:27:34,433 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:27:34,439 INFO L208 MainTranslator]: Completed translation [2023-08-30 17:27:34,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:27:34 WrapperNode [2023-08-30 17:27:34,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 17:27:34,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 17:27:34,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 17:27:34,448 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 17:27:34,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:27:34" (1/1) ... [2023-08-30 17:27:34,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:27:34" (1/1) ... [2023-08-30 17:27:34,619 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 51, statements flattened = 697 [2023-08-30 17:27:34,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 17:27:34,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 17:27:34,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 17:27:34,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 17:27:34,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:27:34" (1/1) ... [2023-08-30 17:27:34,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:27:34" (1/1) ... [2023-08-30 17:27:34,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:27:34" (1/1) ... [2023-08-30 17:27:34,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:27:34" (1/1) ... [2023-08-30 17:27:34,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:27:34" (1/1) ... [2023-08-30 17:27:34,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:27:34" (1/1) ... [2023-08-30 17:27:34,719 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:27:34" (1/1) ... [2023-08-30 17:27:34,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:27:34" (1/1) ... [2023-08-30 17:27:34,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 17:27:34,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 17:27:34,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 17:27:34,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 17:27:34,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:27:34" (1/1) ... [2023-08-30 17:27:34,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:27:34,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:27:34,790 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 17:27:34,816 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 17:27:34,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 17:27:34,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 17:27:34,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 17:27:34,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 17:27:34,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 17:27:34,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 17:27:34,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-30 17:27:34,832 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_get [2023-08-30 17:27:34,832 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_get [2023-08-30 17:27:34,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 17:27:34,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 17:27:34,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 17:27:34,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 17:27:34,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-30 17:27:34,833 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2023-08-30 17:27:34,833 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2023-08-30 17:27:34,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 17:27:34,836 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 17:27:35,329 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 17:27:35,331 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 17:27:36,091 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 17:27:36,102 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 17:27:36,103 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2023-08-30 17:27:36,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:27:36 BoogieIcfgContainer [2023-08-30 17:27:36,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 17:27:36,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 17:27:36,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 17:27:36,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 17:27:36,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:27:30" (1/3) ... [2023-08-30 17:27:36,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb334eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:27:36, skipping insertion in model container [2023-08-30 17:27:36,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:27:34" (2/3) ... [2023-08-30 17:27:36,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb334eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:27:36, skipping insertion in model container [2023-08-30 17:27:36,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:27:36" (3/3) ... [2023-08-30 17:27:36,112 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_get_pc8736x_gpio_set.i [2023-08-30 17:27:36,119 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 17:27:36,127 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 17:27:36,128 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-30 17:27:36,128 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 17:27:36,234 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 17:27:36,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 712 places, 758 transitions, 1532 flow [2023-08-30 17:27:36,565 INFO L130 PetriNetUnfolder]: 53/756 cut-off events. [2023-08-30 17:27:36,565 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 17:27:36,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 765 conditions, 756 events. 53/756 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1023 event pairs, 0 based on Foata normal form. 0/701 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-08-30 17:27:36,574 INFO L82 GeneralOperation]: Start removeDead. Operand has 712 places, 758 transitions, 1532 flow [2023-08-30 17:27:36,585 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 702 places, 748 transitions, 1505 flow [2023-08-30 17:27:36,588 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 17:27:36,606 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 702 places, 748 transitions, 1505 flow [2023-08-30 17:27:36,614 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 702 places, 748 transitions, 1505 flow [2023-08-30 17:27:36,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 702 places, 748 transitions, 1505 flow [2023-08-30 17:27:36,749 INFO L130 PetriNetUnfolder]: 53/748 cut-off events. [2023-08-30 17:27:36,749 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 17:27:36,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 756 conditions, 748 events. 53/748 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 969 event pairs, 0 based on Foata normal form. 0/693 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-08-30 17:27:36,761 INFO L119 LiptonReduction]: Number of co-enabled transitions 10796 [2023-08-30 17:28:31,177 WARN L222 SmtUtils]: Spent 5.91s on a formula simplification that was a NOOP. DAG size: 289 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:28:41,866 WARN L222 SmtUtils]: Spent 6.16s on a formula simplification that was a NOOP. DAG size: 292 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:28:46,990 WARN L222 SmtUtils]: Spent 5.12s on a formula simplification that was a NOOP. DAG size: 258 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:31:12,394 WARN L222 SmtUtils]: Spent 2.09m on a formula simplification. DAG size of input: 613 DAG size of output: 611 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:32:05,673 WARN L222 SmtUtils]: Spent 53.26s on a formula simplification that was a NOOP. DAG size: 551 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:34:31,397 WARN L222 SmtUtils]: Spent 2.43m on a formula simplification. DAG size of input: 616 DAG size of output: 614 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:35:33,276 WARN L222 SmtUtils]: Spent 1.03m on a formula simplification that was a NOOP. DAG size: 554 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:36:14,113 WARN L222 SmtUtils]: Spent 31.33s on a formula simplification that was a NOOP. DAG size: 585 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:37:19,261 WARN L222 SmtUtils]: Spent 1.09m 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 17:37:54,360 WARN L222 SmtUtils]: Spent 35.10s on a formula simplification that was a NOOP. DAG size: 588 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:39:03,503 WARN L222 SmtUtils]: Spent 1.15m 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 17:39:03,516 INFO L134 LiptonReduction]: Checked pairs total: 9378 [2023-08-30 17:39:03,516 INFO L136 LiptonReduction]: Total number of compositions: 820 [2023-08-30 17:39:03,528 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 17:39:03,532 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;@1dabf710, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 17:39:03,533 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-30 17:39:03,544 INFO L130 PetriNetUnfolder]: 6/11 cut-off events. [2023-08-30 17:39:03,544 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:39:03,544 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:39:03,545 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 17:39:03,545 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 17:39:03,549 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:39:03,550 INFO L85 PathProgramCache]: Analyzing trace with hash 2749147, now seen corresponding path program 1 times [2023-08-30 17:39:03,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:39:03,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245942497] [2023-08-30 17:39:03,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:39:03,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:39:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:39:04,042 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 17:39:04,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:39:04,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245942497] [2023-08-30 17:39:04,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245942497] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:39:04,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:39:04,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 17:39:04,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264881880] [2023-08-30 17:39:04,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:39:04,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 17:39:04,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:39:04,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 17:39:04,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 17:39:04,085 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 722 out of 1578 [2023-08-30 17:39:04,091 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 52 transitions, 113 flow. Second operand has 2 states, 2 states have (on average 723.5) internal successors, (1447), 2 states have internal predecessors, (1447), 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 17:39:04,091 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:39:04,091 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 722 of 1578 [2023-08-30 17:39:04,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:39:04,387 INFO L130 PetriNetUnfolder]: 88/178 cut-off events. [2023-08-30 17:39:04,388 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2023-08-30 17:39:04,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 178 events. 88/178 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 482 event pairs, 78 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 308. Up to 179 conditions per place. [2023-08-30 17:39:04,392 INFO L137 encePairwiseOnDemand]: 1564/1578 looper letters, 35 selfloop transitions, 0 changer transitions 3/38 dead transitions. [2023-08-30 17:39:04,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 38 transitions, 161 flow [2023-08-30 17:39:04,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 17:39:04,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 17:39:04,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1496 transitions. [2023-08-30 17:39:04,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4740177439797212 [2023-08-30 17:39:04,417 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1496 transitions. [2023-08-30 17:39:04,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1496 transitions. [2023-08-30 17:39:04,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:39:04,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1496 transitions. [2023-08-30 17:39:04,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 748.0) internal successors, (1496), 2 states have internal predecessors, (1496), 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 17:39:04,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1578.0) internal successors, (4734), 3 states have internal predecessors, (4734), 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 17:39:04,448 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1578.0) internal successors, (4734), 3 states have internal predecessors, (4734), 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 17:39:04,450 INFO L175 Difference]: Start difference. First operand has 36 places, 52 transitions, 113 flow. Second operand 2 states and 1496 transitions. [2023-08-30 17:39:04,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 38 transitions, 161 flow [2023-08-30 17:39:04,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 38 transitions, 156 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 17:39:04,455 INFO L231 Difference]: Finished difference. Result has 33 places, 35 transitions, 73 flow [2023-08-30 17:39:04,457 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1578, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=73, PETRI_PLACES=33, PETRI_TRANSITIONS=35} [2023-08-30 17:39:04,460 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2023-08-30 17:39:04,461 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 35 transitions, 73 flow [2023-08-30 17:39:04,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 723.5) internal successors, (1447), 2 states have internal predecessors, (1447), 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 17:39:04,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:39:04,462 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:39:04,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 17:39:04,463 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 17:39:04,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:39:04,469 INFO L85 PathProgramCache]: Analyzing trace with hash 8169022, now seen corresponding path program 1 times [2023-08-30 17:39:04,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:39:04,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457176566] [2023-08-30 17:39:04,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:39:04,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:39:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:39:05,733 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 17:39:05,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:39:05,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457176566] [2023-08-30 17:39:05,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457176566] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:39:05,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:39:05,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 17:39:05,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416078258] [2023-08-30 17:39:05,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:39:05,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 17:39:05,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:39:05,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 17:39:05,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 17:39:05,788 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 712 out of 1578 [2023-08-30 17:39:05,790 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 35 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 715.3333333333334) internal successors, (2146), 3 states have internal predecessors, (2146), 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 17:39:05,790 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:39:05,790 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 712 of 1578 [2023-08-30 17:39:05,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:39:06,105 INFO L130 PetriNetUnfolder]: 75/152 cut-off events. [2023-08-30 17:39:06,105 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:39:06,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 152 events. 75/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 403 event pairs, 65 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 321. Up to 152 conditions per place. [2023-08-30 17:39:06,106 INFO L137 encePairwiseOnDemand]: 1574/1578 looper letters, 34 selfloop transitions, 2 changer transitions 0/36 dead transitions. [2023-08-30 17:39:06,106 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 36 transitions, 147 flow [2023-08-30 17:39:06,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 17:39:06,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 17:39:06,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2174 transitions. [2023-08-30 17:39:06,112 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4592310942120828 [2023-08-30 17:39:06,112 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2174 transitions. [2023-08-30 17:39:06,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2174 transitions. [2023-08-30 17:39:06,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:39:06,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2174 transitions. [2023-08-30 17:39:06,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 724.6666666666666) internal successors, (2174), 3 states have internal predecessors, (2174), 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 17:39:06,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1578.0) internal successors, (6312), 4 states have internal predecessors, (6312), 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 17:39:06,130 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1578.0) internal successors, (6312), 4 states have internal predecessors, (6312), 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 17:39:06,130 INFO L175 Difference]: Start difference. First operand has 33 places, 35 transitions, 73 flow. Second operand 3 states and 2174 transitions. [2023-08-30 17:39:06,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 36 transitions, 147 flow [2023-08-30 17:39:06,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 36 transitions, 147 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 17:39:06,132 INFO L231 Difference]: Finished difference. Result has 33 places, 36 transitions, 87 flow [2023-08-30 17:39:06,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1578, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=33, PETRI_TRANSITIONS=36} [2023-08-30 17:39:06,133 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2023-08-30 17:39:06,133 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 36 transitions, 87 flow [2023-08-30 17:39:06,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 715.3333333333334) internal successors, (2146), 3 states have internal predecessors, (2146), 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 17:39:06,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:39:06,135 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:39:06,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 17:39:06,135 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 17:39:06,136 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:39:06,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1671669015, now seen corresponding path program 1 times [2023-08-30 17:39:06,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:39:06,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614790520] [2023-08-30 17:39:06,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:39:06,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:39:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:39:07,198 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 17:39:07,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:39:07,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614790520] [2023-08-30 17:39:07,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614790520] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:39:07,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114609818] [2023-08-30 17:39:07,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:39:07,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:39:07,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:39:07,205 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 17:39:07,234 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 17:39:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:39:08,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-30 17:39:08,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:39:08,457 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 17:39:08,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 17:39:08,835 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 17:39:08,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114609818] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 17:39:08,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 17:39:08,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-30 17:39:08,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599796563] [2023-08-30 17:39:08,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 17:39:08,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 17:39:08,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:39:08,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 17:39:08,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-08-30 17:39:08,937 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 710 out of 1578 [2023-08-30 17:39:08,942 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 36 transitions, 87 flow. Second operand has 7 states, 7 states have (on average 712.2857142857143) internal successors, (4986), 7 states have internal predecessors, (4986), 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 17:39:08,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:39:08,943 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 710 of 1578 [2023-08-30 17:39:08,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:39:09,424 INFO L130 PetriNetUnfolder]: 75/157 cut-off events. [2023-08-30 17:39:09,424 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:39:09,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 157 events. 75/157 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 421 event pairs, 65 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 340. Up to 152 conditions per place. [2023-08-30 17:39:09,425 INFO L137 encePairwiseOnDemand]: 1570/1578 looper letters, 33 selfloop transitions, 8 changer transitions 0/41 dead transitions. [2023-08-30 17:39:09,425 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 185 flow [2023-08-30 17:39:09,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 17:39:09,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 17:39:09,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4311 transitions. [2023-08-30 17:39:09,435 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4553231939163498 [2023-08-30 17:39:09,435 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4311 transitions. [2023-08-30 17:39:09,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4311 transitions. [2023-08-30 17:39:09,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:39:09,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4311 transitions. [2023-08-30 17:39:09,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 718.5) internal successors, (4311), 6 states have internal predecessors, (4311), 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 17:39:09,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1578.0) internal successors, (11046), 7 states have internal predecessors, (11046), 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 17:39:09,464 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1578.0) internal successors, (11046), 7 states have internal predecessors, (11046), 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 17:39:09,464 INFO L175 Difference]: Start difference. First operand has 33 places, 36 transitions, 87 flow. Second operand 6 states and 4311 transitions. [2023-08-30 17:39:09,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 185 flow [2023-08-30 17:39:09,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 181 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 17:39:09,465 INFO L231 Difference]: Finished difference. Result has 40 places, 41 transitions, 149 flow [2023-08-30 17:39:09,465 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1578, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=32, 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=149, PETRI_PLACES=40, PETRI_TRANSITIONS=41} [2023-08-30 17:39:09,466 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 4 predicate places. [2023-08-30 17:39:09,466 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 41 transitions, 149 flow [2023-08-30 17:39:09,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 712.2857142857143) internal successors, (4986), 7 states have internal predecessors, (4986), 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 17:39:09,468 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:39:09,468 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:39:09,477 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 17:39:09,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:39:09,673 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 17:39:09,673 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:39:09,673 INFO L85 PathProgramCache]: Analyzing trace with hash -719718146, now seen corresponding path program 2 times [2023-08-30 17:39:09,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:39:09,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465510630] [2023-08-30 17:39:09,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:39:09,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:39:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:39:10,624 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 17:39:10,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:39:10,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465510630] [2023-08-30 17:39:10,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465510630] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:39:10,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205905390] [2023-08-30 17:39:10,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 17:39:10,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:39:10,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:39:10,629 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 17:39:10,658 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 17:39:11,854 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 17:39:11,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 17:39:11,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 1088 conjuncts, 22 conjunts are in the unsatisfiable core [2023-08-30 17:39:11,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:39:12,163 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-30 17:39:12,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 41 [2023-08-30 17:39:12,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-30 17:39:12,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-08-30 17:39:12,384 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 17:39:12,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 17:39:12,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205905390] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:39:12,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 17:39:12,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2023-08-30 17:39:12,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045785197] [2023-08-30 17:39:12,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:39:12,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 17:39:12,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:39:12,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 17:39:12,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-30 17:39:12,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 702 out of 1578 [2023-08-30 17:39:12,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 41 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 704.75) internal successors, (2819), 4 states have internal predecessors, (2819), 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 17:39:12,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:39:12,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 702 of 1578 [2023-08-30 17:39:12,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:39:13,378 INFO L130 PetriNetUnfolder]: 75/163 cut-off events. [2023-08-30 17:39:13,378 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 17:39:13,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 163 events. 75/163 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 452 event pairs, 48 based on Foata normal form. 8/164 useless extension candidates. Maximal degree in co-relation 377. Up to 107 conditions per place. [2023-08-30 17:39:13,379 INFO L137 encePairwiseOnDemand]: 1574/1578 looper letters, 38 selfloop transitions, 3 changer transitions 10/51 dead transitions. [2023-08-30 17:39:13,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 51 transitions, 275 flow [2023-08-30 17:39:13,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 17:39:13,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 17:39:13,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2854 transitions. [2023-08-30 17:39:13,386 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45215462610899876 [2023-08-30 17:39:13,386 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2854 transitions. [2023-08-30 17:39:13,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2854 transitions. [2023-08-30 17:39:13,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:39:13,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2854 transitions. [2023-08-30 17:39:13,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 713.5) internal successors, (2854), 4 states have internal predecessors, (2854), 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 17:39:13,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1578.0) internal successors, (7890), 5 states have internal predecessors, (7890), 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 17:39:13,404 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1578.0) internal successors, (7890), 5 states have internal predecessors, (7890), 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 17:39:13,404 INFO L175 Difference]: Start difference. First operand has 40 places, 41 transitions, 149 flow. Second operand 4 states and 2854 transitions. [2023-08-30 17:39:13,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 51 transitions, 275 flow [2023-08-30 17:39:13,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 51 transitions, 265 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-30 17:39:13,407 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 149 flow [2023-08-30 17:39:13,407 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1578, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=149, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2023-08-30 17:39:13,408 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 7 predicate places. [2023-08-30 17:39:13,408 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 149 flow [2023-08-30 17:39:13,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 704.75) internal successors, (2819), 4 states have internal predecessors, (2819), 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 17:39:13,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:39:13,410 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:39:13,428 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 17:39:13,621 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,SelfDestructingSolverStorable3 [2023-08-30 17:39:13,621 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 17:39:13,622 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:39:13,622 INFO L85 PathProgramCache]: Analyzing trace with hash -836425735, now seen corresponding path program 1 times [2023-08-30 17:39:13,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:39:13,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207591229] [2023-08-30 17:39:13,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:39:13,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:39:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:39:14,646 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 17:39:14,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:39:14,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207591229] [2023-08-30 17:39:14,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207591229] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:39:14,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459029829] [2023-08-30 17:39:14,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:39:14,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:39:14,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:39:14,653 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 17:39:14,658 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 17:39:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:39:15,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-30 17:39:15,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:39:15,914 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 17:39:15,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 17:39:16,213 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 17:39:16,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459029829] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 17:39:16,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 17:39:16,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-30 17:39:16,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392236901] [2023-08-30 17:39:16,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 17:39:16,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-30 17:39:16,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:39:16,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-30 17:39:16,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2023-08-30 17:39:16,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 708 out of 1578 [2023-08-30 17:39:16,627 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 149 flow. Second operand has 17 states, 17 states have (on average 709.5882352941177) internal successors, (12063), 17 states have internal predecessors, (12063), 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 17:39:16,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:39:16,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 708 of 1578 [2023-08-30 17:39:16,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:39:18,601 INFO L130 PetriNetUnfolder]: 20/68 cut-off events. [2023-08-30 17:39:18,602 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2023-08-30 17:39:18,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 68 events. 20/68 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 94 event pairs, 10 based on Foata normal form. 9/70 useless extension candidates. Maximal degree in co-relation 194. Up to 54 conditions per place. [2023-08-30 17:39:18,603 INFO L137 encePairwiseOnDemand]: 1570/1578 looper letters, 33 selfloop transitions, 17 changer transitions 0/50 dead transitions. [2023-08-30 17:39:18,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 50 transitions, 297 flow [2023-08-30 17:39:18,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 17:39:18,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 17:39:18,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 8564 transitions. [2023-08-30 17:39:18,628 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45226024503591045 [2023-08-30 17:39:18,629 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 8564 transitions. [2023-08-30 17:39:18,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 8564 transitions. [2023-08-30 17:39:18,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:39:18,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 8564 transitions. [2023-08-30 17:39:18,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 713.6666666666666) internal successors, (8564), 12 states have internal predecessors, (8564), 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 17:39:18,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 1578.0) internal successors, (20514), 13 states have internal predecessors, (20514), 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 17:39:18,674 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 1578.0) internal successors, (20514), 13 states have internal predecessors, (20514), 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 17:39:18,675 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 149 flow. Second operand 12 states and 8564 transitions. [2023-08-30 17:39:18,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 50 transitions, 297 flow [2023-08-30 17:39:18,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 50 transitions, 291 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 17:39:18,677 INFO L231 Difference]: Finished difference. Result has 57 places, 50 transitions, 287 flow [2023-08-30 17:39:18,678 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1578, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=40, 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=287, PETRI_PLACES=57, PETRI_TRANSITIONS=50} [2023-08-30 17:39:18,678 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 21 predicate places. [2023-08-30 17:39:18,678 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 50 transitions, 287 flow [2023-08-30 17:39:18,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 709.5882352941177) internal successors, (12063), 17 states have internal predecessors, (12063), 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 17:39:18,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:39:18,681 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:39:18,698 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 17:39:18,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:39:18,895 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 17:39:18,896 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:39:18,896 INFO L85 PathProgramCache]: Analyzing trace with hash 2077819865, now seen corresponding path program 2 times [2023-08-30 17:39:18,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:39:18,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756787962] [2023-08-30 17:39:18,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:39:18,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:39:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:39:20,393 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 17:39:20,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:39:20,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756787962] [2023-08-30 17:39:20,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756787962] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:39:20,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274800003] [2023-08-30 17:39:20,394 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 17:39:20,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:39:20,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:39:20,401 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 17:39:20,406 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 17:39:22,033 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 17:39:22,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 17:39:22,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 1104 conjuncts, 438 conjunts are in the unsatisfiable core [2023-08-30 17:39:22,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:39:22,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:22,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:22,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:22,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:22,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:22,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:22,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:22,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:22,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:22,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:22,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:22,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:22,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:22,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:22,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:22,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:22,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:22,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:22,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:22,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:29,318 WARN L222 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 1349 DAG size of output: 204 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-08-30 17:39:29,319 INFO L321 Elim1Store]: treesize reduction 9782, result has 3.8 percent of original size [2023-08-30 17:39:29,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 10 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 136 case distinctions, treesize of input 852 treesize of output 1150 [2023-08-30 17:39:34,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:39:34,723 INFO L321 Elim1Store]: treesize reduction 318, result has 30.1 percent of original size [2023-08-30 17:39:34,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 460 treesize of output 563 [2023-08-30 17:39:34,884 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-08-30 17:39:34,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 347 treesize of output 346 [2023-08-30 17:39:34,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 335 treesize of output 335 [2023-08-30 17:39:34,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 329 [2023-08-30 17:39:35,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 323 treesize of output 323 [2023-08-30 17:39:48,265 INFO L190 IndexEqualityManager]: detected not equals via solver Killed by 15