./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_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 5a1809249b96cd2e4fd4dd86fdfafc377b1182527f618b1b7c3c4df7bd9b92a1 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 17:23:29,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 17:23:29,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 17:23:29,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 17:23:29,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 17:23:29,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 17:23:29,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 17:23:29,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 17:23:29,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 17:23:29,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 17:23:29,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 17:23:29,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 17:23:29,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 17:23:29,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 17:23:29,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 17:23:29,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 17:23:29,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 17:23:29,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 17:23:29,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 17:23:29,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 17:23:29,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 17:23:29,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 17:23:29,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 17:23:29,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 17:23:29,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 17:23:29,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 17:23:29,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 17:23:29,569 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 17:23:29,570 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 17:23:29,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 17:23:29,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 17:23:29,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 17:23:29,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 17:23:29,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 17:23:29,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 17:23:29,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 17:23:29,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 17:23:29,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 17:23:29,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 17:23:29,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 17:23:29,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 17:23:29,577 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 17:23:29,597 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 17:23:29,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 17:23:29,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 17:23:29,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 17:23:29,598 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 17:23:29,599 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 17:23:29,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 17:23:29,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 17:23:29,600 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 17:23:29,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 17:23:29,601 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 17:23:29,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 17:23:29,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 17:23:29,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 17:23:29,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 17:23:29,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 17:23:29,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 17:23:29,602 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 17:23:29,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 17:23:29,602 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 17:23:29,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 17:23:29,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 17:23:29,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 17:23:29,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 17:23:29,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:23:29,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 17:23:29,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 17:23:29,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 17:23:29,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 17:23:29,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 17:23:29,604 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 17:23:29,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 17:23:29,604 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 17:23:29,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 17:23:29,604 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 17:23:29,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a1809249b96cd2e4fd4dd86fdfafc377b1182527f618b1b7c3c4df7bd9b92a1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 17:23:29,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 17:23:29,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 17:23:29,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 17:23:29,882 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 17:23:29,882 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 17:23:29,883 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i [2023-08-30 17:23:30,855 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 17:23:31,228 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 17:23:31,228 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i [2023-08-30 17:23:31,287 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c518770b2/5e808e69d5eb4054884d6610b09b6ace/FLAG95d11825d [2023-08-30 17:23:31,446 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c518770b2/5e808e69d5eb4054884d6610b09b6ace [2023-08-30 17:23:31,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 17:23:31,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 17:23:31,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 17:23:31,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 17:23:31,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 17:23:31,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:23:31" (1/1) ... [2023-08-30 17:23:31,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37803b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:23:31, skipping insertion in model container [2023-08-30 17:23:31,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:23:31" (1/1) ... [2023-08-30 17:23:31,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 17:23:31,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 17:23:31,776 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_configure_pc8736x_gpio_set.i[5469,5482] [2023-08-30 17:23:33,673 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 17:23:34,046 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 17:23:34,047 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 17:23:34,146 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:23:34,166 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 17:23:34,175 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_configure_pc8736x_gpio_set.i[5469,5482] [2023-08-30 17:23:34,350 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 17:23:34,430 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 17:23:34,431 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 17:23:34,466 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:23:34,902 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:23:34,903 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:23:34,903 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:23:34,903 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:23:34,903 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:23:34,903 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:23:34,903 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:23:34,908 INFO L208 MainTranslator]: Completed translation [2023-08-30 17:23:34,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:23:34 WrapperNode [2023-08-30 17:23:34,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 17:23:34,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 17:23:34,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 17:23:34,909 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 17:23:34,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:23:34" (1/1) ... [2023-08-30 17:23:34,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:23:34" (1/1) ... [2023-08-30 17:23:35,068 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 72, statements flattened = 800 [2023-08-30 17:23:35,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 17:23:35,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 17:23:35,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 17:23:35,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 17:23:35,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:23:34" (1/1) ... [2023-08-30 17:23:35,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:23:34" (1/1) ... [2023-08-30 17:23:35,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:23:34" (1/1) ... [2023-08-30 17:23:35,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:23:34" (1/1) ... [2023-08-30 17:23:35,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:23:34" (1/1) ... [2023-08-30 17:23:35,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:23:34" (1/1) ... [2023-08-30 17:23:35,106 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:23:34" (1/1) ... [2023-08-30 17:23:35,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:23:34" (1/1) ... [2023-08-30 17:23:35,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 17:23:35,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 17:23:35,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 17:23:35,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 17:23:35,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:23:34" (1/1) ... [2023-08-30 17:23:35,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:23:35,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:23:35,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 17:23:35,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 17:23:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 17:23:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 17:23:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 17:23:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 17:23:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 17:23:35,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 17:23:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-30 17:23:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 17:23:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 17:23:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 17:23:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_configure [2023-08-30 17:23:35,176 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_configure [2023-08-30 17:23:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 17:23:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 17:23:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 17:23:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-30 17:23:35,178 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2023-08-30 17:23:35,178 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2023-08-30 17:23:35,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 17:23:35,180 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 17:23:35,608 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 17:23:35,609 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 17:23:36,316 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 17:23:36,336 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 17:23:36,337 INFO L302 CfgBuilder]: Removed 25 assume(true) statements. [2023-08-30 17:23:36,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:23:36 BoogieIcfgContainer [2023-08-30 17:23:36,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 17:23:36,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 17:23:36,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 17:23:36,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 17:23:36,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:23:31" (1/3) ... [2023-08-30 17:23:36,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b67ca7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:23:36, skipping insertion in model container [2023-08-30 17:23:36,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:23:34" (2/3) ... [2023-08-30 17:23:36,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b67ca7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:23:36, skipping insertion in model container [2023-08-30 17:23:36,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:23:36" (3/3) ... [2023-08-30 17:23:36,345 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i [2023-08-30 17:23:36,350 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 17:23:36,357 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 17:23:36,357 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-30 17:23:36,357 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 17:23:36,448 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 17:23:36,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 826 places, 877 transitions, 1770 flow [2023-08-30 17:23:36,656 INFO L130 PetriNetUnfolder]: 58/875 cut-off events. [2023-08-30 17:23:36,656 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 17:23:36,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 884 conditions, 875 events. 58/875 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1525 event pairs, 0 based on Foata normal form. 0/815 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-08-30 17:23:36,664 INFO L82 GeneralOperation]: Start removeDead. Operand has 826 places, 877 transitions, 1770 flow [2023-08-30 17:23:36,671 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 816 places, 867 transitions, 1743 flow [2023-08-30 17:23:36,673 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 17:23:36,680 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 816 places, 867 transitions, 1743 flow [2023-08-30 17:23:36,681 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 816 places, 867 transitions, 1743 flow [2023-08-30 17:23:36,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 816 places, 867 transitions, 1743 flow [2023-08-30 17:23:36,844 INFO L130 PetriNetUnfolder]: 58/867 cut-off events. [2023-08-30 17:23:36,844 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 17:23:36,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 867 events. 58/867 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1378 event pairs, 0 based on Foata normal form. 0/807 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-08-30 17:23:36,861 INFO L119 LiptonReduction]: Number of co-enabled transitions 38404 [2023-08-30 17:24:41,104 WARN L222 SmtUtils]: Spent 5.88s on a formula simplification that was a NOOP. DAG size: 289 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:24:46,681 WARN L222 SmtUtils]: Spent 5.58s on a formula simplification that was a NOOP. DAG size: 281 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:24:58,261 WARN L222 SmtUtils]: Spent 11.58s on a formula simplification. DAG size of input: 295 DAG size of output: 293 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:25:03,795 WARN L222 SmtUtils]: Spent 5.53s on a formula simplification that was a NOOP. DAG size: 284 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:27:47,080 WARN L222 SmtUtils]: Spent 2.43m on a formula simplification. DAG size of input: 677 DAG size of output: 675 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:28:15,034 WARN L222 SmtUtils]: Spent 27.93s on a formula simplification that was a NOOP. DAG size: 581 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:29:37,897 WARN L222 SmtUtils]: Spent 1.38m on a formula simplification. DAG size of input: 680 DAG size of output: 678 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:30:46,544 WARN L222 SmtUtils]: Spent 1.14m on a formula simplification that was a NOOP. DAG size: 584 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:30:57,087 INFO L134 LiptonReduction]: Checked pairs total: 29151 [2023-08-30 17:30:57,087 INFO L136 LiptonReduction]: Total number of compositions: 955 [2023-08-30 17:30:57,096 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 17:30:57,099 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;@5e8b4b06, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 17:30:57,099 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-30 17:30:57,105 INFO L130 PetriNetUnfolder]: 6/11 cut-off events. [2023-08-30 17:30:57,105 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:30:57,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:30:57,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 17:30:57,106 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 17:30:57,109 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:30:57,109 INFO L85 PathProgramCache]: Analyzing trace with hash 3293283, now seen corresponding path program 1 times [2023-08-30 17:30:57,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:30:57,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114824097] [2023-08-30 17:30:57,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:30:57,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:30:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:30:57,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:30:57,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:30:57,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114824097] [2023-08-30 17:30:57,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114824097] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:30:57,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:30:57,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 17:30:57,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342406124] [2023-08-30 17:30:57,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:30:57,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 17:30:57,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:30:57,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 17:30:57,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 17:30:57,540 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 842 out of 1832 [2023-08-30 17:30:57,544 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 50 transitions, 109 flow. Second operand has 2 states, 2 states have (on average 843.5) internal successors, (1687), 2 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:30:57,544 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:30:57,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 842 of 1832 [2023-08-30 17:30:57,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:30:57,747 INFO L130 PetriNetUnfolder]: 88/178 cut-off events. [2023-08-30 17:30:57,748 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2023-08-30 17:30:57,749 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 480 event pairs, 78 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 308. Up to 179 conditions per place. [2023-08-30 17:30:57,752 INFO L137 encePairwiseOnDemand]: 1820/1832 looper letters, 35 selfloop transitions, 0 changer transitions 3/38 dead transitions. [2023-08-30 17:30:57,767 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 38 transitions, 161 flow [2023-08-30 17:30:57,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 17:30:57,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 17:30:57,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1734 transitions. [2023-08-30 17:30:57,787 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4732532751091703 [2023-08-30 17:30:57,788 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1734 transitions. [2023-08-30 17:30:57,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1734 transitions. [2023-08-30 17:30:57,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:30:57,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1734 transitions. [2023-08-30 17:30:57,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 867.0) internal successors, (1734), 2 states have internal predecessors, (1734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:30:57,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1832.0) internal successors, (5496), 3 states have internal predecessors, (5496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:30:57,817 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1832.0) internal successors, (5496), 3 states have internal predecessors, (5496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:30:57,818 INFO L175 Difference]: Start difference. First operand has 36 places, 50 transitions, 109 flow. Second operand 2 states and 1734 transitions. [2023-08-30 17:30:57,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 38 transitions, 161 flow [2023-08-30 17:30:57,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 38 transitions, 156 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 17:30:57,822 INFO L231 Difference]: Finished difference. Result has 33 places, 35 transitions, 73 flow [2023-08-30 17:30:57,823 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=73, PETRI_PLACES=33, PETRI_TRANSITIONS=35} [2023-08-30 17:30:57,827 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2023-08-30 17:30:57,827 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 35 transitions, 73 flow [2023-08-30 17:30:57,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 843.5) internal successors, (1687), 2 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:30:57,828 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:30:57,828 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:30:57,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 17:30:57,829 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 17:30:57,829 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:30:57,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1951064947, now seen corresponding path program 1 times [2023-08-30 17:30:57,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:30:57,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750166234] [2023-08-30 17:30:57,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:30:57,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:30:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:30:58,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:30:58,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:30:58,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750166234] [2023-08-30 17:30:58,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750166234] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:30:58,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:30:58,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 17:30:58,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498942688] [2023-08-30 17:30:58,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:30:58,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 17:30:58,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:30:58,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 17:30:58,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 17:30:58,687 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 834 out of 1832 [2023-08-30 17:30:58,690 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 35 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 837.3333333333334) internal successors, (2512), 3 states have internal predecessors, (2512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:30:58,690 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:30:58,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 834 of 1832 [2023-08-30 17:30:58,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:30:58,909 INFO L130 PetriNetUnfolder]: 75/152 cut-off events. [2023-08-30 17:30:58,909 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:30:58,909 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 391 event pairs, 65 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 321. Up to 152 conditions per place. [2023-08-30 17:30:58,910 INFO L137 encePairwiseOnDemand]: 1828/1832 looper letters, 34 selfloop transitions, 2 changer transitions 0/36 dead transitions. [2023-08-30 17:30:58,910 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 36 transitions, 147 flow [2023-08-30 17:30:58,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 17:30:58,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 17:30:58,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2540 transitions. [2023-08-30 17:30:58,915 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4621542940320233 [2023-08-30 17:30:58,915 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2540 transitions. [2023-08-30 17:30:58,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2540 transitions. [2023-08-30 17:30:58,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:30:58,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2540 transitions. [2023-08-30 17:30:58,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 846.6666666666666) internal successors, (2540), 3 states have internal predecessors, (2540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:30:58,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1832.0) internal successors, (7328), 4 states have internal predecessors, (7328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:30:58,929 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1832.0) internal successors, (7328), 4 states have internal predecessors, (7328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:30:58,929 INFO L175 Difference]: Start difference. First operand has 33 places, 35 transitions, 73 flow. Second operand 3 states and 2540 transitions. [2023-08-30 17:30:58,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 36 transitions, 147 flow [2023-08-30 17:30:58,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 36 transitions, 147 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 17:30:58,931 INFO L231 Difference]: Finished difference. Result has 33 places, 36 transitions, 87 flow [2023-08-30 17:30:58,931 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=33, PETRI_TRANSITIONS=36} [2023-08-30 17:30:58,932 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2023-08-30 17:30:58,932 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 36 transitions, 87 flow [2023-08-30 17:30:58,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 837.3333333333334) internal successors, (2512), 3 states have internal predecessors, (2512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:30:58,934 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:30:58,935 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:30:58,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 17:30:58,936 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 17:30:58,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:30:58,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1865034357, now seen corresponding path program 1 times [2023-08-30 17:30:58,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:30:58,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355411729] [2023-08-30 17:30:58,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:30:58,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:30:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:30:59,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:30:59,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:30:59,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355411729] [2023-08-30 17:30:59,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355411729] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:30:59,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370990982] [2023-08-30 17:30:59,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:30:59,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:30:59,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:30:59,978 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 17:30:59,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 17:31:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:31:00,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 1108 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-30 17:31:00,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:31:00,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:31:00,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 17:31:01,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:31:01,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370990982] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 17:31:01,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 17:31:01,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-30 17:31:01,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46103005] [2023-08-30 17:31:01,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 17:31:01,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 17:31:01,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:31:01,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 17:31:01,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-08-30 17:31:01,193 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 828 out of 1832 [2023-08-30 17:31:01,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 36 transitions, 87 flow. Second operand has 8 states, 8 states have (on average 830.125) internal successors, (6641), 8 states have internal predecessors, (6641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:01,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:31:01,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 828 of 1832 [2023-08-30 17:31:01,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:31:01,932 INFO L130 PetriNetUnfolder]: 75/157 cut-off events. [2023-08-30 17:31:01,932 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:31:01,932 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 10. Compared 409 event pairs, 65 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 340. Up to 152 conditions per place. [2023-08-30 17:31:01,933 INFO L137 encePairwiseOnDemand]: 1824/1832 looper letters, 33 selfloop transitions, 8 changer transitions 0/41 dead transitions. [2023-08-30 17:31:01,933 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 185 flow [2023-08-30 17:31:01,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 17:31:01,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 17:31:01,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5019 transitions. [2023-08-30 17:31:01,941 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4566048034934498 [2023-08-30 17:31:01,941 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 5019 transitions. [2023-08-30 17:31:01,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 5019 transitions. [2023-08-30 17:31:01,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:31:01,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 5019 transitions. [2023-08-30 17:31:01,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 836.5) internal successors, (5019), 6 states have internal predecessors, (5019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:01,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1832.0) internal successors, (12824), 7 states have internal predecessors, (12824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:01,964 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1832.0) internal successors, (12824), 7 states have internal predecessors, (12824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:01,964 INFO L175 Difference]: Start difference. First operand has 33 places, 36 transitions, 87 flow. Second operand 6 states and 5019 transitions. [2023-08-30 17:31:01,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 185 flow [2023-08-30 17:31:01,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 181 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 17:31:01,965 INFO L231 Difference]: Finished difference. Result has 40 places, 41 transitions, 149 flow [2023-08-30 17:31:01,965 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=149, PETRI_PLACES=40, PETRI_TRANSITIONS=41} [2023-08-30 17:31:01,966 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 4 predicate places. [2023-08-30 17:31:01,966 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 41 transitions, 149 flow [2023-08-30 17:31:01,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 830.125) internal successors, (6641), 8 states have internal predecessors, (6641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:01,968 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:31:01,968 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:31:01,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 17:31:02,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:31:02,178 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 17:31:02,178 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:31:02,178 INFO L85 PathProgramCache]: Analyzing trace with hash 714763277, now seen corresponding path program 2 times [2023-08-30 17:31:02,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:31:02,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40146703] [2023-08-30 17:31:02,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:31:02,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:31:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:31:02,686 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:31:02,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:31:02,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40146703] [2023-08-30 17:31:02,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40146703] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:31:02,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672655102] [2023-08-30 17:31:02,687 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 17:31:02,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:31:02,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:31:02,688 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 17:31:02,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-30 17:31:03,909 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 17:31:03,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 17:31:03,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 22 conjunts are in the unsatisfiable core [2023-08-30 17:31:03,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:31:04,137 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-30 17:31:04,138 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 57 treesize of output 53 [2023-08-30 17:31:04,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-30 17:31:04,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-08-30 17:31:04,250 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 17:31:04,251 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 17:31:04,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672655102] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:31:04,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 17:31:04,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2023-08-30 17:31:04,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347332830] [2023-08-30 17:31:04,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:31:04,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 17:31:04,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:31:04,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 17:31:04,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-30 17:31:04,391 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 821 out of 1832 [2023-08-30 17:31:04,393 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 41 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 823.75) internal successors, (3295), 4 states have internal predecessors, (3295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:04,393 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:31:04,394 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 821 of 1832 [2023-08-30 17:31:04,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:31:05,029 INFO L130 PetriNetUnfolder]: 75/163 cut-off events. [2023-08-30 17:31:05,029 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 17:31:05,029 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 10. Compared 447 event pairs, 40 based on Foata normal form. 8/164 useless extension candidates. Maximal degree in co-relation 377. Up to 107 conditions per place. [2023-08-30 17:31:05,030 INFO L137 encePairwiseOnDemand]: 1826/1832 looper letters, 45 selfloop transitions, 5 changer transitions 1/51 dead transitions. [2023-08-30 17:31:05,030 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 51 transitions, 275 flow [2023-08-30 17:31:05,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 17:31:05,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 17:31:05,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3330 transitions. [2023-08-30 17:31:05,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45442139737991266 [2023-08-30 17:31:05,036 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 3330 transitions. [2023-08-30 17:31:05,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 3330 transitions. [2023-08-30 17:31:05,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:31:05,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 3330 transitions. [2023-08-30 17:31:05,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 832.5) internal successors, (3330), 4 states have internal predecessors, (3330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:05,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1832.0) internal successors, (9160), 5 states have internal predecessors, (9160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:05,050 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1832.0) internal successors, (9160), 5 states have internal predecessors, (9160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:05,050 INFO L175 Difference]: Start difference. First operand has 40 places, 41 transitions, 149 flow. Second operand 4 states and 3330 transitions. [2023-08-30 17:31:05,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 51 transitions, 275 flow [2023-08-30 17:31:05,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 51 transitions, 265 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-30 17:31:05,051 INFO L231 Difference]: Finished difference. Result has 43 places, 44 transitions, 167 flow [2023-08-30 17:31:05,052 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=167, PETRI_PLACES=43, PETRI_TRANSITIONS=44} [2023-08-30 17:31:05,052 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 7 predicate places. [2023-08-30 17:31:05,052 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 44 transitions, 167 flow [2023-08-30 17:31:05,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 823.75) internal successors, (3295), 4 states have internal predecessors, (3295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:05,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:31:05,053 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:31:05,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-30 17:31:05,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-30 17:31:05,263 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 17:31:05,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:31:05,264 INFO L85 PathProgramCache]: Analyzing trace with hash 682825850, now seen corresponding path program 1 times [2023-08-30 17:31:05,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:31:05,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415553107] [2023-08-30 17:31:05,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:31:05,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:31:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:31:06,046 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:31:06,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:31:06,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415553107] [2023-08-30 17:31:06,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415553107] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:31:06,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670244412] [2023-08-30 17:31:06,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:31:06,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:31:06,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:31:06,057 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 17:31:06,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-30 17:31:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:31:07,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 1175 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-30 17:31:07,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:31:07,171 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:31:07,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 17:31:07,392 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:31:07,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670244412] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 17:31:07,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 17:31:07,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-30 17:31:07,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112927803] [2023-08-30 17:31:07,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 17:31:07,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-30 17:31:07,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:31:07,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-30 17:31:07,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-08-30 17:31:07,833 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 828 out of 1832 [2023-08-30 17:31:07,840 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 44 transitions, 167 flow. Second operand has 17 states, 17 states have (on average 829.5882352941177) internal successors, (14103), 17 states have internal predecessors, (14103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:07,840 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:31:07,840 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 828 of 1832 [2023-08-30 17:31:07,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:31:10,233 INFO L130 PetriNetUnfolder]: 75/172 cut-off events. [2023-08-30 17:31:10,233 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2023-08-30 17:31:10,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 172 events. 75/172 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 481 event pairs, 57 based on Foata normal form. 9/174 useless extension candidates. Maximal degree in co-relation 476. Up to 158 conditions per place. [2023-08-30 17:31:10,234 INFO L137 encePairwiseOnDemand]: 1824/1832 looper letters, 36 selfloop transitions, 17 changer transitions 0/53 dead transitions. [2023-08-30 17:31:10,234 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 53 transitions, 321 flow [2023-08-30 17:31:10,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 17:31:10,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 17:31:10,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 10004 transitions. [2023-08-30 17:31:10,250 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45505822416302766 [2023-08-30 17:31:10,250 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 10004 transitions. [2023-08-30 17:31:10,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 10004 transitions. [2023-08-30 17:31:10,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:31:10,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 10004 transitions. [2023-08-30 17:31:10,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 833.6666666666666) internal successors, (10004), 12 states have internal predecessors, (10004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:10,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 1832.0) internal successors, (23816), 13 states have internal predecessors, (23816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:10,286 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 1832.0) internal successors, (23816), 13 states have internal predecessors, (23816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:10,286 INFO L175 Difference]: Start difference. First operand has 43 places, 44 transitions, 167 flow. Second operand 12 states and 10004 transitions. [2023-08-30 17:31:10,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 53 transitions, 321 flow [2023-08-30 17:31:10,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 53 transitions, 315 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 17:31:10,292 INFO L231 Difference]: Finished difference. Result has 58 places, 53 transitions, 305 flow [2023-08-30 17:31:10,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=305, PETRI_PLACES=58, PETRI_TRANSITIONS=53} [2023-08-30 17:31:10,294 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 22 predicate places. [2023-08-30 17:31:10,294 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 53 transitions, 305 flow [2023-08-30 17:31:10,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 829.5882352941177) internal successors, (14103), 17 states have internal predecessors, (14103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:10,297 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:31:10,297 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:31:10,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-30 17:31:10,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:31:10,509 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 17:31:10,509 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:31:10,509 INFO L85 PathProgramCache]: Analyzing trace with hash -607907526, now seen corresponding path program 2 times [2023-08-30 17:31:10,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:31:10,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933404731] [2023-08-30 17:31:10,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:31:10,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:31:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:31:11,858 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:31:11,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:31:11,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933404731] [2023-08-30 17:31:11,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933404731] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:31:11,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315950714] [2023-08-30 17:31:11,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 17:31:11,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:31:11,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:31:11,860 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 17:31:11,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-30 17:31:12,836 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 17:31:12,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 17:31:12,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 288 conjunts are in the unsatisfiable core [2023-08-30 17:31:12,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:31:13,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:13,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:31:17,894 INFO L321 Elim1Store]: treesize reduction 9114, result has 6.0 percent of original size [2023-08-30 17:31:17,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 12 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 84 case distinctions, treesize of input 524 treesize of output 1020 [2023-08-30 17:31:36,830 INFO L321 Elim1Store]: treesize reduction 83, result has 27.2 percent of original size [2023-08-30 17:31:36,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 421 treesize of output 424 [2023-08-30 17:31:36,907 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-08-30 17:31:36,908 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 327 treesize of output 326 [2023-08-30 17:31:36,934 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 315 treesize of output 315 [2023-08-30 17:31:36,965 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 309 treesize of output 309 [2023-08-30 17:31:36,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 303 treesize of output 303 [2023-08-30 17:31:37,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2023-08-30 17:31:37,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-08-30 17:31:37,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 17:31:37,266 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 17:31:37,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 17:31:37,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315950714] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:31:37,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 17:31:37,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 17 [2023-08-30 17:31:37,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910016499] [2023-08-30 17:31:37,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:31:37,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 17:31:37,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:31:37,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 17:31:37,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2023-08-30 17:31:37,710 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 808 out of 1832 [2023-08-30 17:31:37,713 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 53 transitions, 305 flow. Second operand has 7 states, 7 states have (on average 809.7142857142857) internal successors, (5668), 7 states have internal predecessors, (5668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:37,713 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:31:37,713 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 808 of 1832 [2023-08-30 17:31:37,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:31:38,161 INFO L130 PetriNetUnfolder]: 71/165 cut-off events. [2023-08-30 17:31:38,161 INFO L131 PetriNetUnfolder]: For 62/62 co-relation queries the response was YES. [2023-08-30 17:31:38,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 165 events. 71/165 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 451 event pairs, 38 based on Foata normal form. 3/161 useless extension candidates. Maximal degree in co-relation 490. Up to 85 conditions per place. [2023-08-30 17:31:38,162 INFO L137 encePairwiseOnDemand]: 1819/1832 looper letters, 47 selfloop transitions, 13 changer transitions 1/61 dead transitions. [2023-08-30 17:31:38,163 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 61 transitions, 455 flow [2023-08-30 17:31:38,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 17:31:38,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 17:31:38,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4894 transitions. [2023-08-30 17:31:38,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44523289665211063 [2023-08-30 17:31:38,171 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4894 transitions. [2023-08-30 17:31:38,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4894 transitions. [2023-08-30 17:31:38,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:31:38,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4894 transitions. [2023-08-30 17:31:38,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 815.6666666666666) internal successors, (4894), 6 states have internal predecessors, (4894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:38,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1832.0) internal successors, (12824), 7 states have internal predecessors, (12824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:38,188 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1832.0) internal successors, (12824), 7 states have internal predecessors, (12824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:38,188 INFO L175 Difference]: Start difference. First operand has 58 places, 53 transitions, 305 flow. Second operand 6 states and 4894 transitions. [2023-08-30 17:31:38,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 61 transitions, 455 flow [2023-08-30 17:31:38,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 61 transitions, 415 flow, removed 18 selfloop flow, removed 2 redundant places. [2023-08-30 17:31:38,191 INFO L231 Difference]: Finished difference. Result has 62 places, 54 transitions, 303 flow [2023-08-30 17:31:38,191 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=303, PETRI_PLACES=62, PETRI_TRANSITIONS=54} [2023-08-30 17:31:38,193 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 26 predicate places. [2023-08-30 17:31:38,193 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 54 transitions, 303 flow [2023-08-30 17:31:38,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 809.7142857142857) internal successors, (5668), 7 states have internal predecessors, (5668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:38,195 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:31:38,195 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:31:38,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-30 17:31:38,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:31:38,406 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 17:31:38,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:31:38,406 INFO L85 PathProgramCache]: Analyzing trace with hash 261067698, now seen corresponding path program 1 times [2023-08-30 17:31:38,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:31:38,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808090172] [2023-08-30 17:31:38,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:31:38,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:31:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:31:40,058 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:31:40,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:31:40,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808090172] [2023-08-30 17:31:40,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808090172] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:31:40,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885367494] [2023-08-30 17:31:40,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:31:40,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:31:40,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:31:40,060 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 17:31:40,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-30 17:31:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:31:41,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 27 conjunts are in the unsatisfiable core [2023-08-30 17:31:41,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:31:41,607 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:31:41,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 17:31:42,105 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:31:42,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885367494] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 17:31:42,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 17:31:42,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2023-08-30 17:31:42,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575319047] [2023-08-30 17:31:42,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 17:31:42,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-08-30 17:31:42,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:31:42,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-08-30 17:31:42,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=874, Unknown=0, NotChecked=0, Total=1190 [2023-08-30 17:31:43,232 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 828 out of 1832 [2023-08-30 17:31:43,255 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 54 transitions, 303 flow. Second operand has 35 states, 35 states have (on average 829.3428571428572) internal successors, (29027), 35 states have internal predecessors, (29027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:31:43,266 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:31:43,266 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 828 of 1832 [2023-08-30 17:31:43,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:32:00,711 WARN L222 SmtUtils]: Spent 5.16s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 17:32:15,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 17:32:17,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 17:32:19,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 17:32:20,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 17:32:22,798 INFO L130 PetriNetUnfolder]: 71/183 cut-off events. [2023-08-30 17:32:22,799 INFO L131 PetriNetUnfolder]: For 1179/1179 co-relation queries the response was YES. [2023-08-30 17:32:22,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 183 events. 71/183 cut-off events. For 1179/1179 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 472 event pairs, 55 based on Foata normal form. 30/208 useless extension candidates. Maximal degree in co-relation 588. Up to 151 conditions per place. [2023-08-30 17:32:22,800 INFO L137 encePairwiseOnDemand]: 1824/1832 looper letters, 37 selfloop transitions, 35 changer transitions 0/72 dead transitions. [2023-08-30 17:32:22,800 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 72 transitions, 543 flow [2023-08-30 17:32:22,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-30 17:32:22,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-30 17:32:22,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 19976 transitions. [2023-08-30 17:32:22,820 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45433042212518193 [2023-08-30 17:32:22,820 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 19976 transitions. [2023-08-30 17:32:22,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 19976 transitions. [2023-08-30 17:32:22,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:32:22,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 19976 transitions. [2023-08-30 17:32:22,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 832.3333333333334) internal successors, (19976), 24 states have internal predecessors, (19976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:32:22,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 1832.0) internal successors, (45800), 25 states have internal predecessors, (45800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:32:22,874 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 1832.0) internal successors, (45800), 25 states have internal predecessors, (45800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:32:22,874 INFO L175 Difference]: Start difference. First operand has 62 places, 54 transitions, 303 flow. Second operand 24 states and 19976 transitions. [2023-08-30 17:32:22,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 72 transitions, 543 flow [2023-08-30 17:32:22,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 72 transitions, 521 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 17:32:22,877 INFO L231 Difference]: Finished difference. Result has 93 places, 72 transitions, 569 flow [2023-08-30 17:32:22,878 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=569, PETRI_PLACES=93, PETRI_TRANSITIONS=72} [2023-08-30 17:32:22,878 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 57 predicate places. [2023-08-30 17:32:22,878 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 72 transitions, 569 flow [2023-08-30 17:32:22,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 829.3428571428572) internal successors, (29027), 35 states have internal predecessors, (29027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:32:22,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:32:22,882 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:32:22,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-08-30 17:32:23,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:32:23,106 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 17:32:23,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:32:23,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1007318322, now seen corresponding path program 2 times [2023-08-30 17:32:23,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:32:23,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799890411] [2023-08-30 17:32:23,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:32:23,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:32:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:32:24,845 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:32:24,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:32:24,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799890411] [2023-08-30 17:32:24,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799890411] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:32:24,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754881890] [2023-08-30 17:32:24,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 17:32:24,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:32:24,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:32:24,857 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 17:32:24,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-30 17:32:25,912 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 17:32:25,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 17:32:25,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 27 conjunts are in the unsatisfiable core [2023-08-30 17:32:25,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:32:26,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-08-30 17:32:26,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:32:26,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 16 treesize of output 18 [2023-08-30 17:32:26,414 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-08-30 17:32:26,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 17:32:26,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754881890] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:32:26,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 17:32:26,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [24] total 28 [2023-08-30 17:32:26,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990480276] [2023-08-30 17:32:26,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:32:26,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 17:32:26,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:32:26,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 17:32:26,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2023-08-30 17:32:26,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 820 out of 1832 [2023-08-30 17:32:26,659 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 72 transitions, 569 flow. Second operand has 6 states, 6 states have (on average 822.3333333333334) internal successors, (4934), 6 states have internal predecessors, (4934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:32:26,659 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:32:26,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 820 of 1832 [2023-08-30 17:32:26,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:32:27,131 INFO L130 PetriNetUnfolder]: 71/187 cut-off events. [2023-08-30 17:32:27,131 INFO L131 PetriNetUnfolder]: For 305/305 co-relation queries the response was YES. [2023-08-30 17:32:27,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 187 events. 71/187 cut-off events. For 305/305 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 498 event pairs, 44 based on Foata normal form. 4/184 useless extension candidates. Maximal degree in co-relation 672. Up to 133 conditions per place. [2023-08-30 17:32:27,133 INFO L137 encePairwiseOnDemand]: 1827/1832 looper letters, 64 selfloop transitions, 4 changer transitions 12/80 dead transitions. [2023-08-30 17:32:27,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 80 transitions, 759 flow [2023-08-30 17:32:27,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 17:32:27,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 17:32:27,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4146 transitions. [2023-08-30 17:32:27,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45262008733624454 [2023-08-30 17:32:27,148 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 4146 transitions. [2023-08-30 17:32:27,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 4146 transitions. [2023-08-30 17:32:27,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:32:27,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 4146 transitions. [2023-08-30 17:32:27,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 829.2) internal successors, (4146), 5 states have internal predecessors, (4146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:32:27,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1832.0) internal successors, (10992), 6 states have internal predecessors, (10992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:32:27,157 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1832.0) internal successors, (10992), 6 states have internal predecessors, (10992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:32:27,157 INFO L175 Difference]: Start difference. First operand has 93 places, 72 transitions, 569 flow. Second operand 5 states and 4146 transitions. [2023-08-30 17:32:27,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 80 transitions, 759 flow [2023-08-30 17:32:27,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 80 transitions, 675 flow, removed 35 selfloop flow, removed 6 redundant places. [2023-08-30 17:32:27,162 INFO L231 Difference]: Finished difference. Result has 92 places, 68 transitions, 475 flow [2023-08-30 17:32:27,162 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=475, PETRI_PLACES=92, PETRI_TRANSITIONS=68} [2023-08-30 17:32:27,164 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 56 predicate places. [2023-08-30 17:32:27,164 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 68 transitions, 475 flow [2023-08-30 17:32:27,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 822.3333333333334) internal successors, (4934), 6 states have internal predecessors, (4934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:32:27,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:32:27,165 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:32:27,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-30 17:32:27,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:32:27,375 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 17:32:27,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:32:27,375 INFO L85 PathProgramCache]: Analyzing trace with hash 661977512, now seen corresponding path program 3 times [2023-08-30 17:32:27,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:32:27,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404357641] [2023-08-30 17:32:27,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:32:27,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:32:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:32:29,204 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:32:29,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:32:29,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404357641] [2023-08-30 17:32:29,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404357641] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:32:29,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124434404] [2023-08-30 17:32:29,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-30 17:32:29,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:32:29,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:32:29,206 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 17:32:29,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-30 17:32:30,369 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-08-30 17:32:30,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 17:32:30,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 496 conjunts are in the unsatisfiable core [2023-08-30 17:32:30,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:32:30,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:32:30,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:32:30,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:32:30,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:32:30,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:32:30,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:32:30,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:32:30,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:32:45,414 WARN L222 SmtUtils]: Spent 14.48s on a formula simplification. DAG size of input: 2564 DAG size of output: 522 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-08-30 17:32:45,416 INFO L321 Elim1Store]: treesize reduction 18916, result has 4.9 percent of original size [2023-08-30 17:32:45,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 28 select indices, 28 select index equivalence classes, 33 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 397 case distinctions, treesize of input 1034 treesize of output 1881 [2023-08-30 17:33:58,330 INFO L321 Elim1Store]: treesize reduction 870, result has 28.7 percent of original size [2023-08-30 17:33:58,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 36 disjoint index pairs (out of 105 index pairs), introduced 16 new quantified variables, introduced 93 case distinctions, treesize of input 801 treesize of output 1040 [2023-08-30 17:33:58,623 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-08-30 17:33:58,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 347 treesize of output 346 [2023-08-30 17:33:58,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 335 treesize of output 335 [2023-08-30 17:33:58,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 329 [2023-08-30 17:33:58,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 323 treesize of output 323 [2023-08-30 17:37:10,422 WARN L222 SmtUtils]: Spent 12.03s on a formula simplification. DAG size of input: 658 DAG size of output: 772 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Killed by 15