./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 TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_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 TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 23:46:40,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 23:46:40,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 23:46:40,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 23:46:40,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 23:46:40,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 23:46:40,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 23:46:40,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 23:46:40,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 23:46:40,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 23:46:40,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 23:46:40,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 23:46:40,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 23:46:40,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 23:46:40,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 23:46:40,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 23:46:40,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 23:46:40,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 23:46:40,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 23:46:40,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 23:46:40,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 23:46:40,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 23:46:40,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 23:46:40,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 23:46:40,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 23:46:40,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 23:46:40,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 23:46:40,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 23:46:40,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 23:46:40,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 23:46:40,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 23:46:40,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 23:46:40,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 23:46:40,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 23:46:40,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 23:46:40,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 23:46:40,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 23:46:40,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 23:46:40,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 23:46:40,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 23:46:40,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 23:46:40,136 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 23:46:40,150 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 23:46:40,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 23:46:40,150 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 23:46:40,150 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 23:46:40,151 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 23:46:40,151 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 23:46:40,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 23:46:40,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 23:46:40,152 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 23:46:40,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 23:46:40,152 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 23:46:40,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 23:46:40,152 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 23:46:40,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 23:46:40,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 23:46:40,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 23:46:40,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 23:46:40,153 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 23:46:40,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 23:46:40,153 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 23:46:40,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 23:46:40,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 23:46:40,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 23:46:40,154 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 23:46:40,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 23:46:40,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 23:46:40,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 23:46:40,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 23:46:40,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 23:46:40,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 23:46:40,155 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 23:46:40,155 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 23:46:40,155 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 23:46:40,155 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 23:46:40,156 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 23:46:40,156 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a1809249b96cd2e4fd4dd86fdfafc377b1182527f618b1b7c3c4df7bd9b92a1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 23:46:40,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 23:46:40,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 23:46:40,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 23:46:40,394 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 23:46:40,394 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 23:46:40,395 INFO L432 ainManager$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 23:46:41,326 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 23:46:41,688 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 23:46:41,689 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 23:46:41,723 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f781769e/6224de061aa14c19a2f05dd40489bd11/FLAG29e177c02 [2023-08-30 23:46:41,740 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f781769e/6224de061aa14c19a2f05dd40489bd11 [2023-08-30 23:46:41,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 23:46:41,743 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 23:46:41,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 23:46:41,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 23:46:41,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 23:46:41,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:46:41" (1/1) ... [2023-08-30 23:46:41,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fdd8853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:46:41, skipping insertion in model container [2023-08-30 23:46:41,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:46:41" (1/1) ... [2023-08-30 23:46:41,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 23:46:41,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 23:46:42,061 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 23:46:43,785 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 23:46:44,172 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 23:46:44,175 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 23:46:44,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 23:46:44,221 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 23:46:44,229 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 23:46:44,328 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 23:46:44,376 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 23:46:44,377 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 23:46:44,386 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 23:46:44,673 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:46:44,673 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:46:44,673 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:46:44,674 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:46:44,674 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:46:44,674 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:46:44,674 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:46:44,678 INFO L208 MainTranslator]: Completed translation [2023-08-30 23:46:44,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:46:44 WrapperNode [2023-08-30 23:46:44,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 23:46:44,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 23:46:44,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 23:46:44,680 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 23:46:44,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:46:44" (1/1) ... [2023-08-30 23:46:44,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:46:44" (1/1) ... [2023-08-30 23:46:44,862 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 72, statements flattened = 800 [2023-08-30 23:46:44,871 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 23:46:44,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 23:46:44,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 23:46:44,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 23:46:44,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:46:44" (1/1) ... [2023-08-30 23:46:44,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:46:44" (1/1) ... [2023-08-30 23:46:44,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:46:44" (1/1) ... [2023-08-30 23:46:44,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:46:44" (1/1) ... [2023-08-30 23:46:44,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:46:44" (1/1) ... [2023-08-30 23:46:44,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:46:44" (1/1) ... [2023-08-30 23:46:44,932 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:46:44" (1/1) ... [2023-08-30 23:46:44,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:46:44" (1/1) ... [2023-08-30 23:46:44,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 23:46:44,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 23:46:44,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 23:46:44,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 23:46:44,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:46:44" (1/1) ... [2023-08-30 23:46:44,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 23:46:44,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 23:46:44,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 23:46:44,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 23:46:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 23:46:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 23:46:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 23:46:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 23:46:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 23:46:44,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 23:46:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-30 23:46:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 23:46:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 23:46:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 23:46:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_configure [2023-08-30 23:46:44,999 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_configure [2023-08-30 23:46:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 23:46:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 23:46:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 23:46:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-30 23:46:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2023-08-30 23:46:45,000 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2023-08-30 23:46:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 23:46:45,002 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 23:46:45,340 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 23:46:45,341 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 23:46:46,003 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 23:46:46,022 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 23:46:46,022 INFO L302 CfgBuilder]: Removed 25 assume(true) statements. [2023-08-30 23:46:46,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:46:46 BoogieIcfgContainer [2023-08-30 23:46:46,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 23:46:46,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 23:46:46,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 23:46:46,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 23:46:46,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 11:46:41" (1/3) ... [2023-08-30 23:46:46,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c144e46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:46:46, skipping insertion in model container [2023-08-30 23:46:46,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:46:44" (2/3) ... [2023-08-30 23:46:46,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c144e46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:46:46, skipping insertion in model container [2023-08-30 23:46:46,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:46:46" (3/3) ... [2023-08-30 23:46:46,029 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i [2023-08-30 23:46:46,033 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 23:46:46,039 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 23:46:46,039 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-30 23:46:46,040 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 23:46:46,140 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 23:46:46,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 826 places, 877 transitions, 1770 flow [2023-08-30 23:46:46,374 INFO L130 PetriNetUnfolder]: 58/875 cut-off events. [2023-08-30 23:46:46,374 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 23:46:46,381 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 23:46:46,381 INFO L82 GeneralOperation]: Start removeDead. Operand has 826 places, 877 transitions, 1770 flow [2023-08-30 23:46:46,388 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 816 places, 867 transitions, 1743 flow [2023-08-30 23:46:46,390 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 23:46:46,395 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 816 places, 867 transitions, 1743 flow [2023-08-30 23:46:46,397 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 816 places, 867 transitions, 1743 flow [2023-08-30 23:46:46,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 816 places, 867 transitions, 1743 flow [2023-08-30 23:46:46,511 INFO L130 PetriNetUnfolder]: 58/867 cut-off events. [2023-08-30 23:46:46,511 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 23:46:46,514 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 23:46:46,527 INFO L119 LiptonReduction]: Number of co-enabled transitions 38404 [2023-08-30 23:47:49,422 WARN L222 SmtUtils]: Spent 5.82s on a formula simplification that was a NOOP. DAG size: 289 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:47:54,950 WARN L222 SmtUtils]: Spent 5.53s 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 23:48:06,349 WARN L222 SmtUtils]: Spent 11.39s 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 23:48:11,742 WARN L222 SmtUtils]: Spent 5.39s 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 23:50:56,089 WARN L222 SmtUtils]: Spent 2.45m 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 23:51:24,236 WARN L222 SmtUtils]: Spent 28.13s 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 23:52:47,290 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 23:53:54,941 WARN L222 SmtUtils]: Spent 1.13m 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 23:54:05,369 INFO L134 LiptonReduction]: Checked pairs total: 29151 [2023-08-30 23:54:05,369 INFO L136 LiptonReduction]: Total number of compositions: 955 [2023-08-30 23:54:05,378 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 23:54:05,380 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;@4fb16f77, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 23:54:05,381 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-30 23:54:05,386 INFO L130 PetriNetUnfolder]: 6/11 cut-off events. [2023-08-30 23:54:05,386 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 23:54:05,387 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:54:05,387 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 23:54:05,387 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 23:54:05,390 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:54:05,390 INFO L85 PathProgramCache]: Analyzing trace with hash 3293283, now seen corresponding path program 1 times [2023-08-30 23:54:05,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:54:05,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878490350] [2023-08-30 23:54:05,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:54:05,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:54:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:54:05,744 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 23:54:05,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:54:05,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878490350] [2023-08-30 23:54:05,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878490350] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:54:05,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 23:54:05,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 23:54:05,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847503580] [2023-08-30 23:54:05,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:54:05,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 23:54:05,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:54:05,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 23:54:05,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 23:54:05,774 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 842 out of 1832 [2023-08-30 23:54:05,778 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 23:54:05,779 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:54:05,779 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 842 of 1832 [2023-08-30 23:54:05,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:54:05,972 INFO L130 PetriNetUnfolder]: 88/178 cut-off events. [2023-08-30 23:54:05,972 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2023-08-30 23:54:05,973 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 23:54:05,974 INFO L137 encePairwiseOnDemand]: 1820/1832 looper letters, 35 selfloop transitions, 0 changer transitions 3/38 dead transitions. [2023-08-30 23:54:05,974 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 38 transitions, 161 flow [2023-08-30 23:54:05,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 23:54:05,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 23:54:05,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1734 transitions. [2023-08-30 23:54:05,988 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4732532751091703 [2023-08-30 23:54:05,989 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1734 transitions. [2023-08-30 23:54:05,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1734 transitions. [2023-08-30 23:54:05,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:54:05,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1734 transitions. [2023-08-30 23:54:06,000 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 23:54:06,008 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 23:54:06,010 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 23:54:06,011 INFO L175 Difference]: Start difference. First operand has 36 places, 50 transitions, 109 flow. Second operand 2 states and 1734 transitions. [2023-08-30 23:54:06,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 38 transitions, 161 flow [2023-08-30 23:54:06,013 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 23:54:06,014 INFO L231 Difference]: Finished difference. Result has 33 places, 35 transitions, 73 flow [2023-08-30 23:54:06,015 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 23:54:06,017 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2023-08-30 23:54:06,017 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 35 transitions, 73 flow [2023-08-30 23:54:06,018 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 23:54:06,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:54:06,019 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:54:06,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 23:54:06,019 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 23:54:06,019 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:54:06,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1951064947, now seen corresponding path program 1 times [2023-08-30 23:54:06,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:54:06,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787504308] [2023-08-30 23:54:06,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:54:06,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:54:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:54:06,753 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 23:54:06,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:54:06,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787504308] [2023-08-30 23:54:06,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787504308] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:54:06,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 23:54:06,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 23:54:06,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581281528] [2023-08-30 23:54:06,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:54:06,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 23:54:06,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:54:06,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 23:54:06,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 23:54:06,789 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 834 out of 1832 [2023-08-30 23:54:06,792 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 23:54:06,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:54:06,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 834 of 1832 [2023-08-30 23:54:06,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:54:07,017 INFO L130 PetriNetUnfolder]: 75/152 cut-off events. [2023-08-30 23:54:07,018 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 23:54:07,018 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 23:54:07,018 INFO L137 encePairwiseOnDemand]: 1828/1832 looper letters, 34 selfloop transitions, 2 changer transitions 0/36 dead transitions. [2023-08-30 23:54:07,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 36 transitions, 147 flow [2023-08-30 23:54:07,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 23:54:07,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 23:54:07,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2540 transitions. [2023-08-30 23:54:07,024 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4621542940320233 [2023-08-30 23:54:07,024 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2540 transitions. [2023-08-30 23:54:07,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2540 transitions. [2023-08-30 23:54:07,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:54:07,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2540 transitions. [2023-08-30 23:54:07,030 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 23:54:07,038 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 23:54:07,040 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 23:54:07,040 INFO L175 Difference]: Start difference. First operand has 33 places, 35 transitions, 73 flow. Second operand 3 states and 2540 transitions. [2023-08-30 23:54:07,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 36 transitions, 147 flow [2023-08-30 23:54:07,041 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 23:54:07,042 INFO L231 Difference]: Finished difference. Result has 33 places, 36 transitions, 87 flow [2023-08-30 23:54:07,042 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 23:54:07,042 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2023-08-30 23:54:07,043 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 36 transitions, 87 flow [2023-08-30 23:54:07,044 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 23:54:07,044 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:54:07,045 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:54:07,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 23:54:07,046 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 23:54:07,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:54:07,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1865034357, now seen corresponding path program 1 times [2023-08-30 23:54:07,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:54:07,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103890342] [2023-08-30 23:54:07,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:54:07,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:54:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:54:08,027 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 23:54:08,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:54:08,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103890342] [2023-08-30 23:54:08,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103890342] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 23:54:08,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166169652] [2023-08-30 23:54:08,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:54:08,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 23:54:08,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 23:54:08,034 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 23:54:08,039 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 23:54:09,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:54:09,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 1108 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-30 23:54:09,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 23:54:09,086 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 23:54:09,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 23:54:09,244 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 23:54:09,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166169652] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 23:54:09,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 23:54:09,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-30 23:54:09,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984215967] [2023-08-30 23:54:09,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 23:54:09,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 23:54:09,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:54:09,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 23:54:09,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-08-30 23:54:09,343 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 828 out of 1832 [2023-08-30 23:54:09,349 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 23:54:09,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:54:09,349 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 828 of 1832 [2023-08-30 23:54:09,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:54:10,100 INFO L130 PetriNetUnfolder]: 75/157 cut-off events. [2023-08-30 23:54:10,100 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 23:54:10,101 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 23:54:10,101 INFO L137 encePairwiseOnDemand]: 1824/1832 looper letters, 33 selfloop transitions, 8 changer transitions 0/41 dead transitions. [2023-08-30 23:54:10,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 185 flow [2023-08-30 23:54:10,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 23:54:10,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 23:54:10,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5019 transitions. [2023-08-30 23:54:10,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4566048034934498 [2023-08-30 23:54:10,111 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 5019 transitions. [2023-08-30 23:54:10,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 5019 transitions. [2023-08-30 23:54:10,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:54:10,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 5019 transitions. [2023-08-30 23:54:10,120 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 23:54:10,133 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 23:54:10,135 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 23:54:10,135 INFO L175 Difference]: Start difference. First operand has 33 places, 36 transitions, 87 flow. Second operand 6 states and 5019 transitions. [2023-08-30 23:54:10,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 185 flow [2023-08-30 23:54:10,136 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 23:54:10,137 INFO L231 Difference]: Finished difference. Result has 40 places, 41 transitions, 149 flow [2023-08-30 23:54:10,137 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 23:54:10,137 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 4 predicate places. [2023-08-30 23:54:10,137 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 41 transitions, 149 flow [2023-08-30 23:54:10,139 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 23:54:10,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:54:10,139 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:54:10,152 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 23:54:10,349 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 23:54:10,349 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 23:54:10,350 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:54:10,350 INFO L85 PathProgramCache]: Analyzing trace with hash 714763277, now seen corresponding path program 2 times [2023-08-30 23:54:10,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:54:10,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653665833] [2023-08-30 23:54:10,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:54:10,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:54:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:54:10,910 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 23:54:10,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:54:10,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653665833] [2023-08-30 23:54:10,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653665833] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 23:54:10,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666724760] [2023-08-30 23:54:10,910 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 23:54:10,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 23:54:10,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 23:54:10,913 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 23:54:10,915 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 23:54:12,144 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 23:54:12,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 23:54:12,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 22 conjunts are in the unsatisfiable core [2023-08-30 23:54:12,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 23:54:12,383 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-30 23:54:12,384 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 23:54:12,390 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 23:54:12,465 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 23:54:12,483 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 23:54:12,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 23:54:12,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666724760] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:54:12,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 23:54:12,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2023-08-30 23:54:12,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448539338] [2023-08-30 23:54:12,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:54:12,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 23:54:12,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:54:12,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 23:54:12,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-30 23:54:12,632 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 821 out of 1832 [2023-08-30 23:54:12,635 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 23:54:12,635 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:54:12,635 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 821 of 1832 [2023-08-30 23:54:12,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:54:13,289 INFO L130 PetriNetUnfolder]: 75/163 cut-off events. [2023-08-30 23:54:13,290 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 23:54:13,290 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 23:54:13,290 INFO L137 encePairwiseOnDemand]: 1826/1832 looper letters, 45 selfloop transitions, 5 changer transitions 1/51 dead transitions. [2023-08-30 23:54:13,291 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 51 transitions, 275 flow [2023-08-30 23:54:13,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 23:54:13,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 23:54:13,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3330 transitions. [2023-08-30 23:54:13,297 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45442139737991266 [2023-08-30 23:54:13,297 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 3330 transitions. [2023-08-30 23:54:13,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 3330 transitions. [2023-08-30 23:54:13,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:54:13,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 3330 transitions. [2023-08-30 23:54:13,303 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 23:54:13,310 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 23:54:13,311 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 23:54:13,311 INFO L175 Difference]: Start difference. First operand has 40 places, 41 transitions, 149 flow. Second operand 4 states and 3330 transitions. [2023-08-30 23:54:13,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 51 transitions, 275 flow [2023-08-30 23:54:13,312 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 23:54:13,313 INFO L231 Difference]: Finished difference. Result has 43 places, 44 transitions, 167 flow [2023-08-30 23:54:13,313 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 23:54:13,313 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 7 predicate places. [2023-08-30 23:54:13,313 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 44 transitions, 167 flow [2023-08-30 23:54:13,314 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 23:54:13,314 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:54:13,314 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:54:13,326 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-30 23:54:13,525 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 23:54:13,525 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 23:54:13,526 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:54:13,526 INFO L85 PathProgramCache]: Analyzing trace with hash 682825850, now seen corresponding path program 1 times [2023-08-30 23:54:13,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:54:13,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701254966] [2023-08-30 23:54:13,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:54:13,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:54:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:54:14,330 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 23:54:14,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:54:14,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701254966] [2023-08-30 23:54:14,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701254966] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 23:54:14,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397470144] [2023-08-30 23:54:14,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:54:14,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 23:54:14,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 23:54:14,341 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 23:54:14,343 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 23:54:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:54:15,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 1175 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-30 23:54:15,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 23:54:15,358 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 23:54:15,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 23:54:15,577 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 23:54:15,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397470144] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 23:54:15,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 23:54:15,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-30 23:54:15,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139898205] [2023-08-30 23:54:15,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 23:54:15,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-30 23:54:15,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:54:15,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-30 23:54:15,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-08-30 23:54:16,043 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 828 out of 1832 [2023-08-30 23:54:16,049 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 23:54:16,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:54:16,050 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 828 of 1832 [2023-08-30 23:54:16,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:54:18,244 INFO L130 PetriNetUnfolder]: 75/172 cut-off events. [2023-08-30 23:54:18,245 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2023-08-30 23:54:18,245 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 23:54:18,246 INFO L137 encePairwiseOnDemand]: 1824/1832 looper letters, 36 selfloop transitions, 17 changer transitions 0/53 dead transitions. [2023-08-30 23:54:18,246 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 53 transitions, 321 flow [2023-08-30 23:54:18,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 23:54:18,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 23:54:18,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 10004 transitions. [2023-08-30 23:54:18,261 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45505822416302766 [2023-08-30 23:54:18,262 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 10004 transitions. [2023-08-30 23:54:18,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 10004 transitions. [2023-08-30 23:54:18,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:54:18,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 10004 transitions. [2023-08-30 23:54:18,277 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 23:54:18,294 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 23:54:18,297 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 23:54:18,297 INFO L175 Difference]: Start difference. First operand has 43 places, 44 transitions, 167 flow. Second operand 12 states and 10004 transitions. [2023-08-30 23:54:18,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 53 transitions, 321 flow [2023-08-30 23:54:18,298 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 23:54:18,299 INFO L231 Difference]: Finished difference. Result has 58 places, 53 transitions, 305 flow [2023-08-30 23:54:18,299 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 23:54:18,300 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 22 predicate places. [2023-08-30 23:54:18,300 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 53 transitions, 305 flow [2023-08-30 23:54:18,302 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 23:54:18,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:54:18,302 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:54:18,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-30 23:54:18,503 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 23:54:18,503 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 23:54:18,503 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:54:18,503 INFO L85 PathProgramCache]: Analyzing trace with hash -607907526, now seen corresponding path program 2 times [2023-08-30 23:54:18,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:54:18,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158793700] [2023-08-30 23:54:18,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:54:18,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:54:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:54:19,844 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 23:54:19,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:54:19,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158793700] [2023-08-30 23:54:19,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158793700] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 23:54:19,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491348012] [2023-08-30 23:54:19,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 23:54:19,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 23:54:19,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 23:54:19,846 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 23:54:19,846 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 23:54:20,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 23:54:20,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 23:54:20,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 288 conjunts are in the unsatisfiable core [2023-08-30 23:54:20,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 23:54:21,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:21,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:54:26,541 WARN L222 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 1236 DAG size of output: 265 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-08-30 23:54:26,558 INFO L321 Elim1Store]: treesize reduction 9114, result has 6.0 percent of original size [2023-08-30 23:54:26,558 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 23:54:45,046 INFO L321 Elim1Store]: treesize reduction 83, result has 27.2 percent of original size [2023-08-30 23:54:45,047 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 23:54:45,130 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-08-30 23:54:45,130 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 23:54:45,156 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 23:54:45,185 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 23:54:45,209 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 23:54:45,287 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 23:54:45,409 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 23:54:45,464 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 23:54:45,495 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 23:54:45,495 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 23:54:45,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491348012] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:54:45,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 23:54:45,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 17 [2023-08-30 23:54:45,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870502154] [2023-08-30 23:54:45,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:54:45,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 23:54:45,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:54:45,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 23:54:45,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2023-08-30 23:54:45,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 808 out of 1832 [2023-08-30 23:54:45,939 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 23:54:45,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:54:45,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 808 of 1832 [2023-08-30 23:54:45,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:54:46,405 INFO L130 PetriNetUnfolder]: 71/165 cut-off events. [2023-08-30 23:54:46,405 INFO L131 PetriNetUnfolder]: For 62/62 co-relation queries the response was YES. [2023-08-30 23:54:46,405 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 23:54:46,406 INFO L137 encePairwiseOnDemand]: 1819/1832 looper letters, 47 selfloop transitions, 13 changer transitions 1/61 dead transitions. [2023-08-30 23:54:46,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 61 transitions, 455 flow [2023-08-30 23:54:46,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 23:54:46,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 23:54:46,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4894 transitions. [2023-08-30 23:54:46,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44523289665211063 [2023-08-30 23:54:46,413 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4894 transitions. [2023-08-30 23:54:46,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4894 transitions. [2023-08-30 23:54:46,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:54:46,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4894 transitions. [2023-08-30 23:54:46,420 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 23:54:46,427 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 23:54:46,428 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 23:54:46,429 INFO L175 Difference]: Start difference. First operand has 58 places, 53 transitions, 305 flow. Second operand 6 states and 4894 transitions. [2023-08-30 23:54:46,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 61 transitions, 455 flow [2023-08-30 23:54:46,431 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 23:54:46,432 INFO L231 Difference]: Finished difference. Result has 62 places, 54 transitions, 303 flow [2023-08-30 23:54:46,432 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 23:54:46,433 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 26 predicate places. [2023-08-30 23:54:46,433 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 54 transitions, 303 flow [2023-08-30 23:54:46,434 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 23:54:46,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:54:46,434 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:54:46,443 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 23:54:46,643 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 23:54:46,643 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 23:54:46,644 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:54:46,644 INFO L85 PathProgramCache]: Analyzing trace with hash 261067698, now seen corresponding path program 1 times [2023-08-30 23:54:46,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:54:46,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104845875] [2023-08-30 23:54:46,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:54:46,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:54:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:54:48,305 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 23:54:48,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:54:48,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104845875] [2023-08-30 23:54:48,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104845875] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 23:54:48,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365913865] [2023-08-30 23:54:48,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:54:48,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 23:54:48,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 23:54:48,306 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 23:54:48,307 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 23:54:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:54:49,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 27 conjunts are in the unsatisfiable core [2023-08-30 23:54:49,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 23:54:49,808 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 23:54:49,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 23:54:50,257 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 23:54:50,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365913865] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 23:54:50,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 23:54:50,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2023-08-30 23:54:50,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727770147] [2023-08-30 23:54:50,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 23:54:50,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-08-30 23:54:50,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:54:50,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-08-30 23:54:50,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=874, Unknown=0, NotChecked=0, Total=1190 [2023-08-30 23:54:51,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 828 out of 1832 [2023-08-30 23:54:51,614 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 23:54:51,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:54:51,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 828 of 1832 [2023-08-30 23:54:51,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:55:21,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 23:55:23,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 23:55:24,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 23:55:25,903 INFO L130 PetriNetUnfolder]: 71/183 cut-off events. [2023-08-30 23:55:25,903 INFO L131 PetriNetUnfolder]: For 1179/1179 co-relation queries the response was YES. [2023-08-30 23:55:25,904 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 23:55:25,904 INFO L137 encePairwiseOnDemand]: 1824/1832 looper letters, 37 selfloop transitions, 35 changer transitions 0/72 dead transitions. [2023-08-30 23:55:25,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 72 transitions, 543 flow [2023-08-30 23:55:25,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-30 23:55:25,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-30 23:55:25,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 19976 transitions. [2023-08-30 23:55:25,926 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45433042212518193 [2023-08-30 23:55:25,926 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 19976 transitions. [2023-08-30 23:55:25,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 19976 transitions. [2023-08-30 23:55:25,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:55:25,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 19976 transitions. [2023-08-30 23:55:25,949 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 23:55:25,972 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 23:55:25,976 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 23:55:25,977 INFO L175 Difference]: Start difference. First operand has 62 places, 54 transitions, 303 flow. Second operand 24 states and 19976 transitions. [2023-08-30 23:55:25,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 72 transitions, 543 flow [2023-08-30 23:55:25,979 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 23:55:25,980 INFO L231 Difference]: Finished difference. Result has 93 places, 72 transitions, 569 flow [2023-08-30 23:55:25,980 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 23:55:25,981 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 57 predicate places. [2023-08-30 23:55:25,981 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 72 transitions, 569 flow [2023-08-30 23:55:25,984 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 23:55:25,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:55:25,984 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:55:25,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-30 23:55:26,196 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 23:55:26,196 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 23:55:26,196 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:55:26,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1007318322, now seen corresponding path program 2 times [2023-08-30 23:55:26,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:55:26,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715818676] [2023-08-30 23:55:26,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:55:26,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:55:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:55:27,882 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 23:55:27,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:55:27,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715818676] [2023-08-30 23:55:27,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715818676] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 23:55:27,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690642925] [2023-08-30 23:55:27,883 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 23:55:27,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 23:55:27,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 23:55:27,884 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 23:55:27,885 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 23:55:28,923 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 23:55:28,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 23:55:28,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 27 conjunts are in the unsatisfiable core [2023-08-30 23:55:28,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 23:55:29,271 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 23:55:29,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:55:29,334 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 23:55:29,380 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 23:55:29,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 23:55:29,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690642925] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:55:29,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 23:55:29,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [24] total 28 [2023-08-30 23:55:29,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510396955] [2023-08-30 23:55:29,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:55:29,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 23:55:29,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:55:29,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 23:55:29,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2023-08-30 23:55:29,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 820 out of 1832 [2023-08-30 23:55:29,613 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 23:55:29,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:55:29,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 820 of 1832 [2023-08-30 23:55:29,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:55:30,075 INFO L130 PetriNetUnfolder]: 71/187 cut-off events. [2023-08-30 23:55:30,075 INFO L131 PetriNetUnfolder]: For 305/305 co-relation queries the response was YES. [2023-08-30 23:55:30,076 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 23:55:30,076 INFO L137 encePairwiseOnDemand]: 1827/1832 looper letters, 64 selfloop transitions, 4 changer transitions 12/80 dead transitions. [2023-08-30 23:55:30,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 80 transitions, 759 flow [2023-08-30 23:55:30,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 23:55:30,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 23:55:30,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4146 transitions. [2023-08-30 23:55:30,081 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45262008733624454 [2023-08-30 23:55:30,081 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 4146 transitions. [2023-08-30 23:55:30,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 4146 transitions. [2023-08-30 23:55:30,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:55:30,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 4146 transitions. [2023-08-30 23:55:30,085 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 23:55:30,089 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 23:55:30,090 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 23:55:30,090 INFO L175 Difference]: Start difference. First operand has 93 places, 72 transitions, 569 flow. Second operand 5 states and 4146 transitions. [2023-08-30 23:55:30,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 80 transitions, 759 flow [2023-08-30 23:55:30,094 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 23:55:30,095 INFO L231 Difference]: Finished difference. Result has 92 places, 68 transitions, 475 flow [2023-08-30 23:55:30,095 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 23:55:30,095 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 56 predicate places. [2023-08-30 23:55:30,095 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 68 transitions, 475 flow [2023-08-30 23:55:30,096 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 23:55:30,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:55:30,096 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:55:30,111 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 23:55:30,306 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 23:55:30,308 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 23:55:30,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:55:30,308 INFO L85 PathProgramCache]: Analyzing trace with hash 661977512, now seen corresponding path program 3 times [2023-08-30 23:55:30,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:55:30,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94692598] [2023-08-30 23:55:30,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:55:30,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:55:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:55:32,158 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 23:55:32,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:55:32,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94692598] [2023-08-30 23:55:32,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94692598] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 23:55:32,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775148245] [2023-08-30 23:55:32,158 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-30 23:55:32,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 23:55:32,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 23:55:32,159 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 23:55:32,159 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 23:55:33,263 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-08-30 23:55:33,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 23:55:33,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 496 conjunts are in the unsatisfiable core [2023-08-30 23:55:33,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 23:55:33,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:55:33,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:55:33,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:55:33,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:55:33,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:55:33,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:55:33,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:55:33,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:55:54,525 WARN L222 SmtUtils]: Spent 20.68s 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 23:55:54,527 INFO L321 Elim1Store]: treesize reduction 18916, result has 4.9 percent of original size [2023-08-30 23:55:54,527 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 23:57:08,564 INFO L321 Elim1Store]: treesize reduction 870, result has 28.7 percent of original size [2023-08-30 23:57:08,565 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 23:57:08,868 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-08-30 23:57:08,868 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 23:57:08,962 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 23:57:09,052 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 23:57:09,147 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 [2023-08-31 00:00:28,147 WARN L222 SmtUtils]: Spent 13.37s 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