./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 TOGETHER --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 TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 23:50:57,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 23:50:57,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 23:50:58,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 23:50:58,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 23:50:58,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 23:50:58,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 23:50:58,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 23:50:58,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 23:50:58,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 23:50:58,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 23:50:58,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 23:50:58,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 23:50:58,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 23:50:58,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 23:50:58,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 23:50:58,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 23:50:58,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 23:50:58,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 23:50:58,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 23:50:58,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 23:50:58,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 23:50:58,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 23:50:58,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 23:50:58,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 23:50:58,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 23:50:58,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 23:50:58,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 23:50:58,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 23:50:58,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 23:50:58,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 23:50:58,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 23:50:58,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 23:50:58,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 23:50:58,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 23:50:58,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 23:50:58,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 23:50:58,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 23:50:58,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 23:50:58,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 23:50:58,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 23:50:58,067 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 23:50:58,086 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 23:50:58,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 23:50:58,087 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 23:50:58,087 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 23:50:58,087 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 23:50:58,088 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 23:50:58,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 23:50:58,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 23:50:58,088 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 23:50:58,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 23:50:58,089 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 23:50:58,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 23:50:58,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 23:50:58,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 23:50:58,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 23:50:58,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 23:50:58,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 23:50:58,090 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 23:50:58,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 23:50:58,090 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 23:50:58,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 23:50:58,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 23:50:58,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 23:50:58,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 23:50:58,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 23:50:58,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 23:50:58,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 23:50:58,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 23:50:58,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 23:50:58,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 23:50:58,092 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 23:50:58,092 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 23:50:58,093 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 23:50:58,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 23:50:58,093 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 23:50:58,093 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 070c6009ff827451d8dab682a6835a3a11ca17731824d2cb72abd5ca38de17b6 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 23:50:58,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 23:50:58,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 23:50:58,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 23:50:58,388 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 23:50:58,389 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 23:50:58,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_get_pc8736x_gpio_set.i [2023-08-30 23:50:59,466 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 23:50:59,955 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 23:50:59,956 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 23:51:00,004 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/483425a0c/a11cd3cfa2ae4f0db0738be7b74189df/FLAG5751fa80e [2023-08-30 23:51:00,024 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/483425a0c/a11cd3cfa2ae4f0db0738be7b74189df [2023-08-30 23:51:00,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 23:51:00,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 23:51:00,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 23:51:00,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 23:51:00,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 23:51:00,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:51:00" (1/1) ... [2023-08-30 23:51:00,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63eb0657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:51:00, skipping insertion in model container [2023-08-30 23:51:00,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:51:00" (1/1) ... [2023-08-30 23:51:00,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 23:51:00,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 23:51:00,440 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 23:51:02,820 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 23:51:03,262 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 23:51:03,265 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 23:51:03,354 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 23:51:03,373 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 23:51:03,400 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 23:51:03,587 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 23:51:03,639 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 23:51:03,639 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 23:51:03,650 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 23:51:04,271 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:51:04,272 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:51:04,272 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:51:04,272 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:51:04,272 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:51:04,272 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:51:04,273 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:51:04,279 INFO L208 MainTranslator]: Completed translation [2023-08-30 23:51:04,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:51:04 WrapperNode [2023-08-30 23:51:04,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 23:51:04,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 23:51:04,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 23:51:04,281 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 23:51:04,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:51:04" (1/1) ... [2023-08-30 23:51:04,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:51:04" (1/1) ... [2023-08-30 23:51:04,440 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 51, statements flattened = 697 [2023-08-30 23:51:04,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 23:51:04,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 23:51:04,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 23:51:04,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 23:51:04,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:51:04" (1/1) ... [2023-08-30 23:51:04,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:51:04" (1/1) ... [2023-08-30 23:51:04,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:51:04" (1/1) ... [2023-08-30 23:51:04,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:51:04" (1/1) ... [2023-08-30 23:51:04,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:51:04" (1/1) ... [2023-08-30 23:51:04,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:51:04" (1/1) ... [2023-08-30 23:51:04,498 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:51:04" (1/1) ... [2023-08-30 23:51:04,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:51:04" (1/1) ... [2023-08-30 23:51:04,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 23:51:04,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 23:51:04,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 23:51:04,532 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 23:51:04,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:51:04" (1/1) ... [2023-08-30 23:51:04,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 23:51:04,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 23:51:04,574 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 23:51:04,604 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 23:51:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 23:51:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 23:51:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 23:51:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 23:51:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 23:51:04,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 23:51:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-30 23:51:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_get [2023-08-30 23:51:04,619 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_get [2023-08-30 23:51:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 23:51:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 23:51:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 23:51:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 23:51:04,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-30 23:51:04,620 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2023-08-30 23:51:04,620 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2023-08-30 23:51:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 23:51:04,623 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 23:51:05,181 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 23:51:05,183 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 23:51:05,894 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 23:51:05,903 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 23:51:05,903 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2023-08-30 23:51:05,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:51:05 BoogieIcfgContainer [2023-08-30 23:51:05,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 23:51:05,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 23:51:05,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 23:51:05,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 23:51:05,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 11:51:00" (1/3) ... [2023-08-30 23:51:05,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c5579a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:51:05, skipping insertion in model container [2023-08-30 23:51:05,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:51:04" (2/3) ... [2023-08-30 23:51:05,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c5579a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:51:05, skipping insertion in model container [2023-08-30 23:51:05,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:51:05" (3/3) ... [2023-08-30 23:51:05,913 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_get_pc8736x_gpio_set.i [2023-08-30 23:51:05,919 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 23:51:05,926 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 23:51:05,926 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-30 23:51:05,926 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 23:51:06,090 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 23:51:06,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 712 places, 758 transitions, 1532 flow [2023-08-30 23:51:06,375 INFO L130 PetriNetUnfolder]: 53/756 cut-off events. [2023-08-30 23:51:06,376 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 23:51:06,384 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 23:51:06,384 INFO L82 GeneralOperation]: Start removeDead. Operand has 712 places, 758 transitions, 1532 flow [2023-08-30 23:51:06,395 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 702 places, 748 transitions, 1505 flow [2023-08-30 23:51:06,398 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 23:51:06,413 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 702 places, 748 transitions, 1505 flow [2023-08-30 23:51:06,415 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 702 places, 748 transitions, 1505 flow [2023-08-30 23:51:06,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 702 places, 748 transitions, 1505 flow [2023-08-30 23:51:06,533 INFO L130 PetriNetUnfolder]: 53/748 cut-off events. [2023-08-30 23:51:06,533 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 23:51:06,535 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 23:51:06,541 INFO L119 LiptonReduction]: Number of co-enabled transitions 10796 [2023-08-30 23:52:02,012 WARN L222 SmtUtils]: Spent 6.09s 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 23:52:13,000 WARN L222 SmtUtils]: Spent 6.35s 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 23:52:18,331 WARN L222 SmtUtils]: Spent 5.33s 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 23:54:43,422 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 23:55:36,245 WARN L222 SmtUtils]: Spent 52.80s 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 23:58:00,444 WARN L222 SmtUtils]: Spent 2.40m 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 23:59:04,972 WARN L222 SmtUtils]: Spent 1.08m 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 23:59:47,018 WARN L222 SmtUtils]: Spent 32.32s 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) [2023-08-31 00:01:16,008 WARN L222 SmtUtils]: Spent 1.48m 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) [2023-08-31 00:02:02,471 WARN L222 SmtUtils]: Spent 46.46s 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) [2023-08-31 00:03:38,161 WARN L222 SmtUtils]: Spent 1.59m 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) [2023-08-31 00:03:38,176 INFO L134 LiptonReduction]: Checked pairs total: 9378 [2023-08-31 00:03:38,177 INFO L136 LiptonReduction]: Total number of compositions: 820 [2023-08-31 00:03:38,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 00:03:38,193 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;@6da208b2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 00:03:38,193 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-31 00:03:38,204 INFO L130 PetriNetUnfolder]: 6/11 cut-off events. [2023-08-31 00:03:38,204 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:03:38,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:03:38,205 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-31 00:03:38,205 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)] === [2023-08-31 00:03:38,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:03:38,210 INFO L85 PathProgramCache]: Analyzing trace with hash 2749147, now seen corresponding path program 1 times [2023-08-31 00:03:38,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:03:38,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957576155] [2023-08-31 00:03:38,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:03:38,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:03:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:03:38,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:03:38,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:03:38,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957576155] [2023-08-31 00:03:38,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957576155] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:03:38,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:03:38,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-31 00:03:38,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849384321] [2023-08-31 00:03:38,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:03:38,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 00:03:38,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:03:38,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 00:03:38,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 00:03:38,772 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 722 out of 1578 [2023-08-31 00:03:38,776 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) [2023-08-31 00:03:38,776 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:03:38,776 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 722 of 1578 [2023-08-31 00:03:38,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:03:39,051 INFO L130 PetriNetUnfolder]: 88/178 cut-off events. [2023-08-31 00:03:39,051 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2023-08-31 00:03:39,052 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. [2023-08-31 00:03:39,054 INFO L137 encePairwiseOnDemand]: 1564/1578 looper letters, 35 selfloop transitions, 0 changer transitions 3/38 dead transitions. [2023-08-31 00:03:39,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 38 transitions, 161 flow [2023-08-31 00:03:39,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 00:03:39,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 00:03:39,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1496 transitions. [2023-08-31 00:03:39,071 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4740177439797212 [2023-08-31 00:03:39,072 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1496 transitions. [2023-08-31 00:03:39,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1496 transitions. [2023-08-31 00:03:39,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:03:39,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1496 transitions. [2023-08-31 00:03:39,084 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) [2023-08-31 00:03:39,093 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) [2023-08-31 00:03:39,095 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) [2023-08-31 00:03:39,097 INFO L175 Difference]: Start difference. First operand has 36 places, 52 transitions, 113 flow. Second operand 2 states and 1496 transitions. [2023-08-31 00:03:39,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 38 transitions, 161 flow [2023-08-31 00:03:39,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 38 transitions, 156 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 00:03:39,102 INFO L231 Difference]: Finished difference. Result has 33 places, 35 transitions, 73 flow [2023-08-31 00:03:39,103 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} [2023-08-31 00:03:39,106 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2023-08-31 00:03:39,106 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 35 transitions, 73 flow [2023-08-31 00:03:39,107 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) [2023-08-31 00:03:39,107 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:03:39,108 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:03:39,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 00:03:39,108 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)] === [2023-08-31 00:03:39,109 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:03:39,109 INFO L85 PathProgramCache]: Analyzing trace with hash 8169022, now seen corresponding path program 1 times [2023-08-31 00:03:39,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:03:39,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813973050] [2023-08-31 00:03:39,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:03:39,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:03:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:03:40,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:03:40,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:03:40,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813973050] [2023-08-31 00:03:40,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813973050] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:03:40,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:03:40,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 00:03:40,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435591478] [2023-08-31 00:03:40,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:03:40,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 00:03:40,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:03:40,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 00:03:40,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 00:03:40,423 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 712 out of 1578 [2023-08-31 00:03:40,425 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) [2023-08-31 00:03:40,426 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:03:40,426 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 712 of 1578 [2023-08-31 00:03:40,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:03:40,744 INFO L130 PetriNetUnfolder]: 75/152 cut-off events. [2023-08-31 00:03:40,745 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:03:40,745 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. [2023-08-31 00:03:40,747 INFO L137 encePairwiseOnDemand]: 1574/1578 looper letters, 34 selfloop transitions, 2 changer transitions 0/36 dead transitions. [2023-08-31 00:03:40,747 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 36 transitions, 147 flow [2023-08-31 00:03:40,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 00:03:40,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 00:03:40,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2174 transitions. [2023-08-31 00:03:40,754 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4592310942120828 [2023-08-31 00:03:40,754 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2174 transitions. [2023-08-31 00:03:40,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2174 transitions. [2023-08-31 00:03:40,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:03:40,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2174 transitions. [2023-08-31 00:03:40,760 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) [2023-08-31 00:03:40,768 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) [2023-08-31 00:03:40,772 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) [2023-08-31 00:03:40,772 INFO L175 Difference]: Start difference. First operand has 33 places, 35 transitions, 73 flow. Second operand 3 states and 2174 transitions. [2023-08-31 00:03:40,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 36 transitions, 147 flow [2023-08-31 00:03:40,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 36 transitions, 147 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 00:03:40,774 INFO L231 Difference]: Finished difference. Result has 33 places, 36 transitions, 87 flow [2023-08-31 00:03:40,774 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} [2023-08-31 00:03:40,776 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2023-08-31 00:03:40,777 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 36 transitions, 87 flow [2023-08-31 00:03:40,779 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) [2023-08-31 00:03:40,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:03:40,780 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:03:40,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 00:03:40,780 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)] === [2023-08-31 00:03:40,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:03:40,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1671669015, now seen corresponding path program 1 times [2023-08-31 00:03:40,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:03:40,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327522012] [2023-08-31 00:03:40,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:03:40,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:03:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:03:41,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:03:41,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:03:41,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327522012] [2023-08-31 00:03:41,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327522012] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 00:03:41,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780402352] [2023-08-31 00:03:41,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:03:41,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 00:03:41,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:03:42,005 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) [2023-08-31 00:03:42,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-31 00:03:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:03:43,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-31 00:03:43,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 00:03:43,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:03:43,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 00:03:43,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:03:43,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780402352] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 00:03:43,791 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 00:03:43,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-31 00:03:43,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352452132] [2023-08-31 00:03:43,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 00:03:43,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-31 00:03:43,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:03:43,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-31 00:03:43,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-08-31 00:03:43,887 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 710 out of 1578 [2023-08-31 00:03:43,892 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) [2023-08-31 00:03:43,892 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:03:43,892 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 710 of 1578 [2023-08-31 00:03:43,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:03:44,367 INFO L130 PetriNetUnfolder]: 75/157 cut-off events. [2023-08-31 00:03:44,367 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:03:44,369 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. [2023-08-31 00:03:44,371 INFO L137 encePairwiseOnDemand]: 1570/1578 looper letters, 33 selfloop transitions, 8 changer transitions 0/41 dead transitions. [2023-08-31 00:03:44,371 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 185 flow [2023-08-31 00:03:44,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 00:03:44,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 00:03:44,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4311 transitions. [2023-08-31 00:03:44,382 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4553231939163498 [2023-08-31 00:03:44,382 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4311 transitions. [2023-08-31 00:03:44,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4311 transitions. [2023-08-31 00:03:44,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:03:44,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4311 transitions. [2023-08-31 00:03:44,395 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) [2023-08-31 00:03:44,409 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) [2023-08-31 00:03:44,415 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) [2023-08-31 00:03:44,415 INFO L175 Difference]: Start difference. First operand has 33 places, 36 transitions, 87 flow. Second operand 6 states and 4311 transitions. [2023-08-31 00:03:44,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 185 flow [2023-08-31 00:03:44,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 181 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-31 00:03:44,417 INFO L231 Difference]: Finished difference. Result has 40 places, 41 transitions, 149 flow [2023-08-31 00:03:44,418 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} [2023-08-31 00:03:44,419 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 4 predicate places. [2023-08-31 00:03:44,419 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 41 transitions, 149 flow [2023-08-31 00:03:44,424 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) [2023-08-31 00:03:44,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:03:44,424 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:03:44,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-31 00:03:44,635 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 [2023-08-31 00:03:44,636 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)] === [2023-08-31 00:03:44,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:03:44,636 INFO L85 PathProgramCache]: Analyzing trace with hash -719718146, now seen corresponding path program 2 times [2023-08-31 00:03:44,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:03:44,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951910020] [2023-08-31 00:03:44,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:03:44,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:03:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:03:45,592 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:03:45,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:03:45,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951910020] [2023-08-31 00:03:45,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951910020] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 00:03:45,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474528123] [2023-08-31 00:03:45,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-31 00:03:45,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 00:03:45,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:03:45,595 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) [2023-08-31 00:03:45,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-31 00:03:46,619 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-31 00:03:46,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 00:03:46,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 1088 conjuncts, 22 conjunts are in the unsatisfiable core [2023-08-31 00:03:46,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 00:03:46,930 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-31 00:03:46,931 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 [2023-08-31 00:03:46,939 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 [2023-08-31 00:03:47,136 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 [2023-08-31 00:03:47,172 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-31 00:03:47,172 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-31 00:03:47,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474528123] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:03:47,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-31 00:03:47,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2023-08-31 00:03:47,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880609027] [2023-08-31 00:03:47,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:03:47,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-31 00:03:47,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:03:47,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-31 00:03:47,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-31 00:03:47,333 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 702 out of 1578 [2023-08-31 00:03:47,335 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) [2023-08-31 00:03:47,335 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:03:47,335 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 702 of 1578 [2023-08-31 00:03:47,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:03:48,046 INFO L130 PetriNetUnfolder]: 75/163 cut-off events. [2023-08-31 00:03:48,046 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 00:03:48,047 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. [2023-08-31 00:03:48,047 INFO L137 encePairwiseOnDemand]: 1574/1578 looper letters, 38 selfloop transitions, 3 changer transitions 10/51 dead transitions. [2023-08-31 00:03:48,047 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 51 transitions, 275 flow [2023-08-31 00:03:48,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 00:03:48,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 00:03:48,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2854 transitions. [2023-08-31 00:03:48,054 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45215462610899876 [2023-08-31 00:03:48,054 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2854 transitions. [2023-08-31 00:03:48,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2854 transitions. [2023-08-31 00:03:48,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:03:48,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2854 transitions. [2023-08-31 00:03:48,061 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) [2023-08-31 00:03:48,069 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) [2023-08-31 00:03:48,070 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) [2023-08-31 00:03:48,071 INFO L175 Difference]: Start difference. First operand has 40 places, 41 transitions, 149 flow. Second operand 4 states and 2854 transitions. [2023-08-31 00:03:48,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 51 transitions, 275 flow [2023-08-31 00:03:48,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 51 transitions, 265 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-31 00:03:48,073 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 149 flow [2023-08-31 00:03:48,073 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} [2023-08-31 00:03:48,074 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 7 predicate places. [2023-08-31 00:03:48,074 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 149 flow [2023-08-31 00:03:48,075 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) [2023-08-31 00:03:48,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:03:48,076 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:03:48,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-31 00:03:48,286 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 [2023-08-31 00:03:48,286 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)] === [2023-08-31 00:03:48,287 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:03:48,287 INFO L85 PathProgramCache]: Analyzing trace with hash -836425735, now seen corresponding path program 1 times [2023-08-31 00:03:48,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:03:48,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135948498] [2023-08-31 00:03:48,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:03:48,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:03:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:03:49,253 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:03:49,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:03:49,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135948498] [2023-08-31 00:03:49,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135948498] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 00:03:49,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103621497] [2023-08-31 00:03:49,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:03:49,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 00:03:49,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:03:49,256 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) [2023-08-31 00:03:49,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-31 00:03:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:03:50,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-31 00:03:50,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 00:03:50,483 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:03:50,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 00:03:50,759 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:03:50,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103621497] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 00:03:50,759 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 00:03:50,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-31 00:03:50,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113745516] [2023-08-31 00:03:50,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 00:03:50,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-31 00:03:50,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:03:50,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-31 00:03:50,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2023-08-31 00:03:51,182 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 708 out of 1578 [2023-08-31 00:03:51,198 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) [2023-08-31 00:03:51,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:03:51,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 708 of 1578 [2023-08-31 00:03:51,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:03:53,684 INFO L130 PetriNetUnfolder]: 20/68 cut-off events. [2023-08-31 00:03:53,684 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2023-08-31 00:03:53,684 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. [2023-08-31 00:03:53,685 INFO L137 encePairwiseOnDemand]: 1570/1578 looper letters, 33 selfloop transitions, 17 changer transitions 0/50 dead transitions. [2023-08-31 00:03:53,685 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 50 transitions, 297 flow [2023-08-31 00:03:53,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 00:03:53,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 00:03:53,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 8564 transitions. [2023-08-31 00:03:53,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45226024503591045 [2023-08-31 00:03:53,735 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 8564 transitions. [2023-08-31 00:03:53,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 8564 transitions. [2023-08-31 00:03:53,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:03:53,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 8564 transitions. [2023-08-31 00:03:53,751 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) [2023-08-31 00:03:53,809 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) [2023-08-31 00:03:53,813 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) [2023-08-31 00:03:53,814 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 149 flow. Second operand 12 states and 8564 transitions. [2023-08-31 00:03:53,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 50 transitions, 297 flow [2023-08-31 00:03:53,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 50 transitions, 291 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 00:03:53,820 INFO L231 Difference]: Finished difference. Result has 57 places, 50 transitions, 287 flow [2023-08-31 00:03:53,820 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} [2023-08-31 00:03:53,822 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 21 predicate places. [2023-08-31 00:03:53,823 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 50 transitions, 287 flow [2023-08-31 00:03:53,825 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) [2023-08-31 00:03:53,825 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:03:53,825 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:03:53,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-31 00:03:54,042 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 [2023-08-31 00:03:54,042 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)] === [2023-08-31 00:03:54,042 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:03:54,043 INFO L85 PathProgramCache]: Analyzing trace with hash 2077819865, now seen corresponding path program 2 times [2023-08-31 00:03:54,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:03:54,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526194292] [2023-08-31 00:03:54,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:03:54,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:03:54,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:03:55,649 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:03:55,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:03:55,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526194292] [2023-08-31 00:03:55,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526194292] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 00:03:55,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992322161] [2023-08-31 00:03:55,650 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-31 00:03:55,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 00:03:55,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:03:55,655 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) [2023-08-31 00:03:55,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-31 00:03:57,739 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-31 00:03:57,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 00:03:57,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 1104 conjuncts, 438 conjunts are in the unsatisfiable core [2023-08-31 00:03:57,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 00:03:58,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:03:58,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:03:58,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:03:58,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:03:58,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:03:58,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:03:58,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:03:58,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:03:58,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:03:58,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:03:58,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:03:58,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:03:58,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:03:58,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:03:58,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:03:58,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:03:58,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:03:58,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:03:58,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:03:58,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:04:07,511 WARN L222 SmtUtils]: Spent 8.90s 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) [2023-08-31 00:04:07,513 INFO L321 Elim1Store]: treesize reduction 9782, result has 3.8 percent of original size [2023-08-31 00:04:07,514 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 [2023-08-31 00:04:13,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 00:04:13,902 INFO L321 Elim1Store]: treesize reduction 318, result has 30.1 percent of original size [2023-08-31 00:04:13,902 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 [2023-08-31 00:04:14,067 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-08-31 00:04:14,067 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 [2023-08-31 00:04:14,124 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 [2023-08-31 00:04:14,168 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 [2023-08-31 00:04:14,225 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 [2023-08-31 00:04:28,956 INFO L190 IndexEqualityManager]: detected not equals via solver Killed by 15