./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_configure.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_open_pc8736x_gpio_configure.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 b1a17d3759bada8eeaa7181dfb5d5b3d4a0a35df75e272f1b74765d1fea9e0e6 --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 23:54:31,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 23:54:31,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 23:54:31,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 23:54:31,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 23:54:31,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 23:54:31,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 23:54:31,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 23:54:31,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 23:54:31,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 23:54:31,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 23:54:31,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 23:54:31,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 23:54:31,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 23:54:31,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 23:54:31,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 23:54:31,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 23:54:31,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 23:54:31,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 23:54:31,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 23:54:31,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 23:54:31,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 23:54:31,837 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 23:54:31,838 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 23:54:31,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 23:54:31,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 23:54:31,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 23:54:31,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 23:54:31,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 23:54:31,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 23:54:31,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 23:54:31,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 23:54:31,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 23:54:31,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 23:54:31,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 23:54:31,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 23:54:31,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 23:54:31,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 23:54:31,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 23:54:31,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 23:54:31,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 23:54:31,851 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 23:54:31,870 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 23:54:31,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 23:54:31,870 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 23:54:31,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 23:54:31,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 23:54:31,871 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 23:54:31,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 23:54:31,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 23:54:31,872 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 23:54:31,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 23:54:31,873 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 23:54:31,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 23:54:31,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 23:54:31,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 23:54:31,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 23:54:31,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 23:54:31,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 23:54:31,874 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 23:54:31,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 23:54:31,874 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 23:54:31,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 23:54:31,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 23:54:31,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 23:54:31,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 23:54:31,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 23:54:31,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 23:54:31,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 23:54:31,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 23:54:31,876 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 23:54:31,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 23:54:31,876 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 23:54:31,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 23:54:31,877 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 23:54:31,877 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 23:54:31,877 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 23:54:31,877 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1a17d3759bada8eeaa7181dfb5d5b3d4a0a35df75e272f1b74765d1fea9e0e6 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 23:54:32,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 23:54:32,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 23:54:32,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 23:54:32,188 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 23:54:32,189 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 23:54:32,190 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_configure.i [2023-08-30 23:54:33,333 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 23:54:33,804 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 23:54:33,804 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_configure.i [2023-08-30 23:54:33,850 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe1912e6/52a4d9f280c040dcbd71a9a1baeb90cb/FLAG737bd0908 [2023-08-30 23:54:33,866 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe1912e6/52a4d9f280c040dcbd71a9a1baeb90cb [2023-08-30 23:54:33,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 23:54:33,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 23:54:33,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 23:54:33,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 23:54:33,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 23:54:33,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:54:33" (1/1) ... [2023-08-30 23:54:33,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@817931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:54:33, skipping insertion in model container [2023-08-30 23:54:33,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:54:33" (1/1) ... [2023-08-30 23:54:33,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 23:54:34,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 23:54:34,339 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_open_pc8736x_gpio_configure.i[5469,5482] [2023-08-30 23:54:37,618 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 23:54:38,005 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 23:54:38,006 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 23:54:38,075 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 23:54:38,093 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 23:54:38,118 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_open_pc8736x_gpio_configure.i[5469,5482] [2023-08-30 23:54:38,288 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 23:54:38,368 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 23:54:38,368 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 23:54:38,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 23:54:38,853 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:54:38,854 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:54:38,854 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:54:38,854 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:54:38,854 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:54:38,854 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:54:38,854 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:54:38,860 INFO L208 MainTranslator]: Completed translation [2023-08-30 23:54:38,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:54:38 WrapperNode [2023-08-30 23:54:38,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 23:54:38,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 23:54:38,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 23:54:38,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 23:54:38,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:54:38" (1/1) ... [2023-08-30 23:54:38,967 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:54:38" (1/1) ... [2023-08-30 23:54:39,059 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 70, statements flattened = 746 [2023-08-30 23:54:39,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 23:54:39,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 23:54:39,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 23:54:39,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 23:54:39,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:54:38" (1/1) ... [2023-08-30 23:54:39,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:54:38" (1/1) ... [2023-08-30 23:54:39,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:54:38" (1/1) ... [2023-08-30 23:54:39,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:54:38" (1/1) ... [2023-08-30 23:54:39,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:54:38" (1/1) ... [2023-08-30 23:54:39,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:54:38" (1/1) ... [2023-08-30 23:54:39,144 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:54:38" (1/1) ... [2023-08-30 23:54:39,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:54:38" (1/1) ... [2023-08-30 23:54:39,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 23:54:39,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 23:54:39,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 23:54:39,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 23:54:39,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:54:38" (1/1) ... [2023-08-30 23:54:39,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 23:54:39,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 23:54:39,203 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 23:54:39,215 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 23:54:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 23:54:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 23:54:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 23:54:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 23:54:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 23:54:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 23:54:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2023-08-30 23:54:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2023-08-30 23:54:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-30 23:54:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 23:54:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 23:54:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 23:54:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_configure [2023-08-30 23:54:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_configure [2023-08-30 23:54:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 23:54:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 23:54:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 23:54:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-30 23:54:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 23:54:39,243 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 23:54:39,746 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 23:54:39,747 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 23:54:40,626 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 23:54:40,665 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 23:54:40,666 INFO L302 CfgBuilder]: Removed 21 assume(true) statements. [2023-08-30 23:54:40,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:54:40 BoogieIcfgContainer [2023-08-30 23:54:40,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 23:54:40,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 23:54:40,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 23:54:40,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 23:54:40,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 11:54:33" (1/3) ... [2023-08-30 23:54:40,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e758fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:54:40, skipping insertion in model container [2023-08-30 23:54:40,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:54:38" (2/3) ... [2023-08-30 23:54:40,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e758fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:54:40, skipping insertion in model container [2023-08-30 23:54:40,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:54:40" (3/3) ... [2023-08-30 23:54:40,677 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_configure.i [2023-08-30 23:54:40,685 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 23:54:40,693 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 23:54:40,693 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-30 23:54:40,694 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 23:54:40,866 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 23:54:40,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 776 places, 818 transitions, 1652 flow [2023-08-30 23:54:41,140 INFO L130 PetriNetUnfolder]: 49/816 cut-off events. [2023-08-30 23:54:41,140 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 23:54:41,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 825 conditions, 816 events. 49/816 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1204 event pairs, 0 based on Foata normal form. 0/765 useless extension candidates. Maximal degree in co-relation 646. Up to 9 conditions per place. [2023-08-30 23:54:41,149 INFO L82 GeneralOperation]: Start removeDead. Operand has 776 places, 818 transitions, 1652 flow [2023-08-30 23:54:41,158 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 766 places, 808 transitions, 1625 flow [2023-08-30 23:54:41,161 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 23:54:41,175 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 766 places, 808 transitions, 1625 flow [2023-08-30 23:54:41,178 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 766 places, 808 transitions, 1625 flow [2023-08-30 23:54:41,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 766 places, 808 transitions, 1625 flow [2023-08-30 23:54:41,372 INFO L130 PetriNetUnfolder]: 49/808 cut-off events. [2023-08-30 23:54:41,373 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 23:54:41,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 816 conditions, 808 events. 49/808 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1110 event pairs, 0 based on Foata normal form. 0/757 useless extension candidates. Maximal degree in co-relation 646. Up to 9 conditions per place. [2023-08-30 23:54:41,384 INFO L119 LiptonReduction]: Number of co-enabled transitions 18816 [2023-08-30 23:56:20,785 WARN L222 SmtUtils]: Spent 21.33s on a formula simplification that was a NOOP. DAG size: 511 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:56:42,680 WARN L222 SmtUtils]: Spent 21.89s on a formula simplification that was a NOOP. DAG size: 511 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:56:57,865 WARN L222 SmtUtils]: Spent 15.18s on a formula simplification that was a NOOP. DAG size: 511 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:57:12,974 WARN L222 SmtUtils]: Spent 15.11s on a formula simplification that was a NOOP. DAG size: 511 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:59:30,665 WARN L222 SmtUtils]: Spent 2.22m on a formula simplification. DAG size of input: 601 DAG size of output: 599 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 00:00:41,220 WARN L222 SmtUtils]: Spent 1.18m on a formula simplification that was a NOOP. DAG size: 581 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 00:02:50,348 WARN L222 SmtUtils]: Spent 2.15m on a formula simplification. DAG size of input: 607 DAG size of output: 603 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 00:03:50,590 WARN L222 SmtUtils]: Spent 1.00m on a formula simplification that was a NOOP. DAG size: 584 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 00:04:08,484 WARN L222 SmtUtils]: Spent 7.77s on a formula simplification. DAG size of input: 321 DAG size of output: 304 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 00:04:11,077 INFO L134 LiptonReduction]: Checked pairs total: 15299 [2023-08-31 00:04:11,077 INFO L136 LiptonReduction]: Total number of compositions: 909 [2023-08-31 00:04:11,094 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 00:04:11,098 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;@4f7def75, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 00:04:11,098 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-31 00:04:11,107 INFO L130 PetriNetUnfolder]: 4/8 cut-off events. [2023-08-31 00:04:11,107 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:04:11,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:04:11,108 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-31 00:04:11,109 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-31 00:04:11,113 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:04:11,114 INFO L85 PathProgramCache]: Analyzing trace with hash 3031322, now seen corresponding path program 1 times [2023-08-31 00:04:11,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:04:11,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674251500] [2023-08-31 00:04:11,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:04:11,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:04:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:04:11,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:04:11,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:04:11,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674251500] [2023-08-31 00:04:11,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674251500] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:04:11,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:04:11,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-31 00:04:11,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801365631] [2023-08-31 00:04:11,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:04:11,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 00:04:11,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:04:11,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 00:04:11,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 00:04:11,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 787 out of 1727 [2023-08-31 00:04:11,672 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 45 transitions, 99 flow. Second operand has 2 states, 2 states have (on average 788.5) internal successors, (1577), 2 states have internal predecessors, (1577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:11,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:04:11,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 787 of 1727 [2023-08-31 00:04:11,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:04:11,954 INFO L130 PetriNetUnfolder]: 61/127 cut-off events. [2023-08-31 00:04:11,955 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-31 00:04:11,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 127 events. 61/127 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 331 event pairs, 51 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 200. Up to 128 conditions per place. [2023-08-31 00:04:11,957 INFO L137 encePairwiseOnDemand]: 1717/1727 looper letters, 31 selfloop transitions, 0 changer transitions 4/35 dead transitions. [2023-08-31 00:04:11,957 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 35 transitions, 149 flow [2023-08-31 00:04:11,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 00:04:11,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 00:04:11,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1619 transitions. [2023-08-31 00:04:11,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4687319050376375 [2023-08-31 00:04:11,979 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1619 transitions. [2023-08-31 00:04:11,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1619 transitions. [2023-08-31 00:04:11,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:04:11,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1619 transitions. [2023-08-31 00:04:11,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 809.5) internal successors, (1619), 2 states have internal predecessors, (1619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:12,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1727.0) internal successors, (5181), 3 states have internal predecessors, (5181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:12,008 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1727.0) internal successors, (5181), 3 states have internal predecessors, (5181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:12,009 INFO L175 Difference]: Start difference. First operand has 33 places, 45 transitions, 99 flow. Second operand 2 states and 1619 transitions. [2023-08-31 00:04:12,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 35 transitions, 149 flow [2023-08-31 00:04:12,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 35 transitions, 144 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 00:04:12,014 INFO L231 Difference]: Finished difference. Result has 30 places, 31 transitions, 65 flow [2023-08-31 00:04:12,015 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1727, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=65, PETRI_PLACES=30, PETRI_TRANSITIONS=31} [2023-08-31 00:04:12,018 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -3 predicate places. [2023-08-31 00:04:12,019 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 31 transitions, 65 flow [2023-08-31 00:04:12,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 788.5) internal successors, (1577), 2 states have internal predecessors, (1577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:12,020 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:04:12,020 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 00:04:12,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 00:04:12,021 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-31 00:04:12,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:04:12,022 INFO L85 PathProgramCache]: Analyzing trace with hash 108908993, now seen corresponding path program 1 times [2023-08-31 00:04:12,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:04:12,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778242980] [2023-08-31 00:04:12,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:04:12,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:04:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:04:12,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:04:12,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:04:12,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778242980] [2023-08-31 00:04:12,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778242980] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:04:12,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:04:12,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 00:04:12,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537136230] [2023-08-31 00:04:12,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:04:12,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 00:04:12,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:04:12,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 00:04:12,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 00:04:12,885 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 769 out of 1727 [2023-08-31 00:04:12,888 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 31 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 771.0) internal successors, (2313), 3 states have internal predecessors, (2313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:12,888 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:04:12,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 769 of 1727 [2023-08-31 00:04:12,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:04:13,378 INFO L130 PetriNetUnfolder]: 39/89 cut-off events. [2023-08-31 00:04:13,378 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:04:13,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 89 events. 39/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 242 event pairs, 17 based on Foata normal form. 8/87 useless extension candidates. Maximal degree in co-relation 189. Up to 78 conditions per place. [2023-08-31 00:04:13,380 INFO L137 encePairwiseOnDemand]: 1722/1727 looper letters, 32 selfloop transitions, 4 changer transitions 0/36 dead transitions. [2023-08-31 00:04:13,380 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 36 transitions, 149 flow [2023-08-31 00:04:13,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 00:04:13,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 00:04:13,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2344 transitions. [2023-08-31 00:04:13,392 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45242231229492375 [2023-08-31 00:04:13,392 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2344 transitions. [2023-08-31 00:04:13,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2344 transitions. [2023-08-31 00:04:13,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:04:13,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2344 transitions. [2023-08-31 00:04:13,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 781.3333333333334) internal successors, (2344), 3 states have internal predecessors, (2344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:13,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1727.0) internal successors, (6908), 4 states have internal predecessors, (6908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:13,411 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1727.0) internal successors, (6908), 4 states have internal predecessors, (6908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:13,412 INFO L175 Difference]: Start difference. First operand has 30 places, 31 transitions, 65 flow. Second operand 3 states and 2344 transitions. [2023-08-31 00:04:13,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 36 transitions, 149 flow [2023-08-31 00:04:13,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 36 transitions, 149 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 00:04:13,414 INFO L231 Difference]: Finished difference. Result has 29 places, 34 transitions, 91 flow [2023-08-31 00:04:13,414 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1727, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=29, PETRI_TRANSITIONS=34} [2023-08-31 00:04:13,415 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -4 predicate places. [2023-08-31 00:04:13,415 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 34 transitions, 91 flow [2023-08-31 00:04:13,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 771.0) internal successors, (2313), 3 states have internal predecessors, (2313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:13,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:04:13,417 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:04:13,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 00:04:13,418 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-31 00:04:13,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:04:13,418 INFO L85 PathProgramCache]: Analyzing trace with hash -918788636, now seen corresponding path program 1 times [2023-08-31 00:04:13,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:04:13,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537403011] [2023-08-31 00:04:13,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:04:13,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:04:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:04:14,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:04:14,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:04:14,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537403011] [2023-08-31 00:04:14,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537403011] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:04:14,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:04:14,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 00:04:14,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406545440] [2023-08-31 00:04:14,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:04:14,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-31 00:04:14,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:04:14,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-31 00:04:14,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-31 00:04:15,010 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 760 out of 1727 [2023-08-31 00:04:15,016 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 34 transitions, 91 flow. Second operand has 7 states, 7 states have (on average 761.0) internal successors, (5327), 7 states have internal predecessors, (5327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:15,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:04:15,016 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 760 of 1727 [2023-08-31 00:04:15,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:04:15,778 INFO L130 PetriNetUnfolder]: 34/80 cut-off events. [2023-08-31 00:04:15,778 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-08-31 00:04:15,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 80 events. 34/80 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 219 event pairs, 2 based on Foata normal form. 3/74 useless extension candidates. Maximal degree in co-relation 207. Up to 35 conditions per place. [2023-08-31 00:04:15,779 INFO L137 encePairwiseOnDemand]: 1714/1727 looper letters, 27 selfloop transitions, 12 changer transitions 1/40 dead transitions. [2023-08-31 00:04:15,779 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 40 transitions, 195 flow [2023-08-31 00:04:15,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 00:04:15,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 00:04:15,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4601 transitions. [2023-08-31 00:04:15,791 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44402624975873384 [2023-08-31 00:04:15,792 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4601 transitions. [2023-08-31 00:04:15,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4601 transitions. [2023-08-31 00:04:15,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:04:15,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4601 transitions. [2023-08-31 00:04:15,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 766.8333333333334) internal successors, (4601), 6 states have internal predecessors, (4601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:15,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1727.0) internal successors, (12089), 7 states have internal predecessors, (12089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:15,827 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1727.0) internal successors, (12089), 7 states have internal predecessors, (12089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:15,828 INFO L175 Difference]: Start difference. First operand has 29 places, 34 transitions, 91 flow. Second operand 6 states and 4601 transitions. [2023-08-31 00:04:15,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 40 transitions, 195 flow [2023-08-31 00:04:15,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 40 transitions, 191 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 00:04:15,831 INFO L231 Difference]: Finished difference. Result has 33 places, 33 transitions, 119 flow [2023-08-31 00:04:15,831 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1727, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=119, PETRI_PLACES=33, PETRI_TRANSITIONS=33} [2023-08-31 00:04:15,832 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2023-08-31 00:04:15,832 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 33 transitions, 119 flow [2023-08-31 00:04:15,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 761.0) internal successors, (5327), 7 states have internal predecessors, (5327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:15,835 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:04:15,835 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:04:15,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 00:04:15,838 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-31 00:04:15,838 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:04:15,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1016561602, now seen corresponding path program 1 times [2023-08-31 00:04:15,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:04:15,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396802112] [2023-08-31 00:04:15,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:04:15,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:04:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:04:17,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:04:17,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:04:17,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396802112] [2023-08-31 00:04:17,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396802112] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:04:17,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:04:17,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 00:04:17,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839942772] [2023-08-31 00:04:17,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:04:17,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 00:04:17,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:04:17,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 00:04:17,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-31 00:04:17,410 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 766 out of 1727 [2023-08-31 00:04:17,414 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 33 transitions, 119 flow. Second operand has 6 states, 6 states have (on average 767.5) internal successors, (4605), 6 states have internal predecessors, (4605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:17,415 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:04:17,415 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 766 of 1727 [2023-08-31 00:04:17,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:04:17,958 INFO L130 PetriNetUnfolder]: 34/84 cut-off events. [2023-08-31 00:04:17,959 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2023-08-31 00:04:17,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 84 events. 34/84 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 245 event pairs, 8 based on Foata normal form. 4/81 useless extension candidates. Maximal degree in co-relation 255. Up to 34 conditions per place. [2023-08-31 00:04:17,960 INFO L137 encePairwiseOnDemand]: 1722/1727 looper letters, 25 selfloop transitions, 4 changer transitions 12/41 dead transitions. [2023-08-31 00:04:17,960 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 41 transitions, 231 flow [2023-08-31 00:04:17,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-31 00:04:17,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-31 00:04:17,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3870 transitions. [2023-08-31 00:04:17,970 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4481760277938622 [2023-08-31 00:04:17,970 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3870 transitions. [2023-08-31 00:04:17,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3870 transitions. [2023-08-31 00:04:17,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:04:17,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3870 transitions. [2023-08-31 00:04:17,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 774.0) internal successors, (3870), 5 states have internal predecessors, (3870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:17,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1727.0) internal successors, (10362), 6 states have internal predecessors, (10362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:17,992 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1727.0) internal successors, (10362), 6 states have internal predecessors, (10362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:17,992 INFO L175 Difference]: Start difference. First operand has 33 places, 33 transitions, 119 flow. Second operand 5 states and 3870 transitions. [2023-08-31 00:04:17,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 41 transitions, 231 flow [2023-08-31 00:04:17,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 41 transitions, 211 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 00:04:17,995 INFO L231 Difference]: Finished difference. Result has 34 places, 29 transitions, 89 flow [2023-08-31 00:04:17,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1727, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=89, PETRI_PLACES=34, PETRI_TRANSITIONS=29} [2023-08-31 00:04:17,996 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2023-08-31 00:04:17,996 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 29 transitions, 89 flow [2023-08-31 00:04:17,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 767.5) internal successors, (4605), 6 states have internal predecessors, (4605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:17,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:04:17,998 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:04:17,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 00:04:17,998 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-31 00:04:17,999 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:04:17,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1806745026, now seen corresponding path program 2 times [2023-08-31 00:04:17,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:04:17,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017538271] [2023-08-31 00:04:17,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:04:18,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:04:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:04:19,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:04:19,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:04:19,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017538271] [2023-08-31 00:04:19,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017538271] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:04:19,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:04:19,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-31 00:04:19,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578469659] [2023-08-31 00:04:19,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:04:19,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-31 00:04:19,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:04:19,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-31 00:04:19,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-08-31 00:04:20,216 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 759 out of 1727 [2023-08-31 00:04:20,221 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 29 transitions, 89 flow. Second operand has 8 states, 8 states have (on average 760.125) internal successors, (6081), 8 states have internal predecessors, (6081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:20,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:04:20,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 759 of 1727 [2023-08-31 00:04:20,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:04:21,083 INFO L130 PetriNetUnfolder]: 11/32 cut-off events. [2023-08-31 00:04:21,084 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2023-08-31 00:04:21,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 32 events. 11/32 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 41 event pairs, 2 based on Foata normal form. 4/27 useless extension candidates. Maximal degree in co-relation 81. Up to 14 conditions per place. [2023-08-31 00:04:21,085 INFO L137 encePairwiseOnDemand]: 1717/1727 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2023-08-31 00:04:21,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 28 transitions, 137 flow [2023-08-31 00:04:21,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 00:04:21,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 00:04:21,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4583 transitions. [2023-08-31 00:04:21,099 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4422891333719359 [2023-08-31 00:04:21,099 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4583 transitions. [2023-08-31 00:04:21,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4583 transitions. [2023-08-31 00:04:21,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:04:21,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4583 transitions. [2023-08-31 00:04:21,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 763.8333333333334) internal successors, (4583), 6 states have internal predecessors, (4583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:21,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1727.0) internal successors, (12089), 7 states have internal predecessors, (12089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:21,122 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1727.0) internal successors, (12089), 7 states have internal predecessors, (12089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:21,123 INFO L175 Difference]: Start difference. First operand has 34 places, 29 transitions, 89 flow. Second operand 6 states and 4583 transitions. [2023-08-31 00:04:21,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 28 transitions, 137 flow [2023-08-31 00:04:21,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 28 transitions, 115 flow, removed 2 selfloop flow, removed 9 redundant places. [2023-08-31 00:04:21,124 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2023-08-31 00:04:21,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1727, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2023-08-31 00:04:21,125 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -4 predicate places. [2023-08-31 00:04:21,125 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2023-08-31 00:04:21,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 760.125) internal successors, (6081), 8 states have internal predecessors, (6081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:04:21,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-08-31 00:04:21,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-08-31 00:04:21,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-08-31 00:04:21,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-08-31 00:04:21,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-08-31 00:04:21,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 00:04:21,131 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-08-31 00:04:21,135 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 00:04:21,135 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 00:04:21,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 12:04:21 BasicIcfg [2023-08-31 00:04:21,138 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 00:04:21,138 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 00:04:21,138 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 00:04:21,138 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 00:04:21,139 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:54:40" (3/4) ... [2023-08-31 00:04:21,141 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 00:04:21,145 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_pc8736x_gpio_open [2023-08-31 00:04:21,145 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_pc8736x_gpio_configure [2023-08-31 00:04:21,162 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 94 nodes and edges [2023-08-31 00:04:21,164 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-08-31 00:04:21,164 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-08-31 00:04:21,165 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 00:04:21,249 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 00:04:21,249 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 00:04:21,250 INFO L158 Benchmark]: Toolchain (without parser) took 587380.04ms. Allocated memory was 67.1MB in the beginning and 444.6MB in the end (delta: 377.5MB). Free memory was 38.4MB in the beginning and 320.8MB in the end (delta: -282.4MB). Peak memory consumption was 93.8MB. Max. memory is 16.1GB. [2023-08-31 00:04:21,252 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 67.1MB. Free memory was 44.7MB in the beginning and 44.7MB in the end (delta: 49.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:04:21,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4989.68ms. Allocated memory was 67.1MB in the beginning and 121.6MB in the end (delta: 54.5MB). Free memory was 38.2MB in the beginning and 65.1MB in the end (delta: -26.9MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2023-08-31 00:04:21,252 INFO L158 Benchmark]: Boogie Procedure Inliner took 198.07ms. Allocated memory is still 121.6MB. Free memory was 64.5MB in the beginning and 53.1MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-31 00:04:21,253 INFO L158 Benchmark]: Boogie Preprocessor took 114.59ms. Allocated memory is still 121.6MB. Free memory was 53.1MB in the beginning and 47.2MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-08-31 00:04:21,253 INFO L158 Benchmark]: RCFGBuilder took 1493.64ms. Allocated memory was 121.6MB in the beginning and 243.3MB in the end (delta: 121.6MB). Free memory was 47.2MB in the beginning and 160.3MB in the end (delta: -113.2MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2023-08-31 00:04:21,253 INFO L158 Benchmark]: TraceAbstraction took 580466.05ms. Allocated memory was 243.3MB in the beginning and 444.6MB in the end (delta: 201.3MB). Free memory was 160.3MB in the beginning and 329.2MB in the end (delta: -168.9MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2023-08-31 00:04:21,254 INFO L158 Benchmark]: Witness Printer took 111.16ms. Allocated memory is still 444.6MB. Free memory was 329.2MB in the beginning and 320.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-08-31 00:04:21,256 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 67.1MB. Free memory was 44.7MB in the beginning and 44.7MB in the end (delta: 49.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4989.68ms. Allocated memory was 67.1MB in the beginning and 121.6MB in the end (delta: 54.5MB). Free memory was 38.2MB in the beginning and 65.1MB in the end (delta: -26.9MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 198.07ms. Allocated memory is still 121.6MB. Free memory was 64.5MB in the beginning and 53.1MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 114.59ms. Allocated memory is still 121.6MB. Free memory was 53.1MB in the beginning and 47.2MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1493.64ms. Allocated memory was 121.6MB in the beginning and 243.3MB in the end (delta: 121.6MB). Free memory was 47.2MB in the beginning and 160.3MB in the end (delta: -113.2MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * TraceAbstraction took 580466.05ms. Allocated memory was 243.3MB in the beginning and 444.6MB in the end (delta: 201.3MB). Free memory was 160.3MB in the beginning and 329.2MB in the end (delta: -168.9MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. * Witness Printer took 111.16ms. Allocated memory is still 444.6MB. Free memory was 329.2MB in the beginning and 320.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 569.9s, 766 PlacesBefore, 33 PlacesAfterwards, 808 TransitionsBefore, 45 TransitionsAfterwards, 18816 CoEnabledTransitionPairs, 11 FixpointIterations, 562 TrivialSequentialCompositions, 213 ConcurrentSequentialCompositions, 85 TrivialYvCompositions, 19 ConcurrentYvCompositions, 30 ChoiceCompositions, 909 TotalNumberOfCompositions, 15299 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13961, independent: 13866, independent conditional: 0, independent unconditional: 13866, dependent: 95, dependent conditional: 0, dependent unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9994, independent: 9953, independent conditional: 0, independent unconditional: 9953, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13961, independent: 3913, independent conditional: 0, independent unconditional: 3913, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 9994, unknown conditional: 0, unknown unconditional: 9994] , Statistics on independence cache: Total cache size (in pairs): 26, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 970 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 580.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 570.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1150 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 841 mSDsluCounter, 1025 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 847 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1752 IncrementalHoareTripleChecker+Invalid, 1790 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 178 mSDtfsCounter, 1752 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=3, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 304 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 00:04:21,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE