./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 AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_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 AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 17:29:00,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 17:29:00,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 17:29:00,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 17:29:00,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 17:29:00,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 17:29:00,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 17:29:00,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 17:29:00,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 17:29:00,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 17:29:00,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 17:29:00,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 17:29:00,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 17:29:00,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 17:29:00,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 17:29:00,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 17:29:00,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 17:29:00,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 17:29:00,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 17:29:00,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 17:29:00,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 17:29:00,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 17:29:00,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 17:29:00,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 17:29:00,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 17:29:00,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 17:29:00,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 17:29:00,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 17:29:00,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 17:29:00,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 17:29:00,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 17:29:00,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 17:29:00,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 17:29:00,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 17:29:00,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 17:29:00,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 17:29:00,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 17:29:00,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 17:29:00,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 17:29:00,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 17:29:00,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 17:29:00,971 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 17:29:00,995 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 17:29:00,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 17:29:00,996 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 17:29:00,996 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 17:29:00,997 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 17:29:00,997 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 17:29:00,997 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 17:29:00,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 17:29:00,998 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 17:29:00,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 17:29:00,998 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 17:29:00,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 17:29:00,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 17:29:00,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 17:29:00,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 17:29:00,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 17:29:00,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 17:29:00,999 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 17:29:01,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 17:29:01,000 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 17:29:01,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 17:29:01,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 17:29:01,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 17:29:01,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 17:29:01,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:29:01,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 17:29:01,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 17:29:01,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 17:29:01,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 17:29:01,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 17:29:01,001 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 17:29:01,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 17:29:01,002 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 17:29:01,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 17:29:01,002 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 17:29:01,002 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1a17d3759bada8eeaa7181dfb5d5b3d4a0a35df75e272f1b74765d1fea9e0e6 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 17:29:01,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 17:29:01,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 17:29:01,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 17:29:01,258 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 17:29:01,258 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 17:29:01,259 INFO L432 ainManager$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 17:29:02,208 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 17:29:02,566 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 17:29:02,566 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 17:29:02,592 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/970842348/e8f2776b3b854308ab99c1a2f2cb57e3/FLAGaad0e8f1b [2023-08-30 17:29:02,604 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/970842348/e8f2776b3b854308ab99c1a2f2cb57e3 [2023-08-30 17:29:02,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 17:29:02,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 17:29:02,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 17:29:02,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 17:29:02,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 17:29:02,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:29:02" (1/1) ... [2023-08-30 17:29:02,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c7f33e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:29:02, skipping insertion in model container [2023-08-30 17:29:02,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:29:02" (1/1) ... [2023-08-30 17:29:02,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 17:29:02,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 17:29:02,912 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 17:29:04,980 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 17:29:05,323 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 17:29:05,323 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 17:29:05,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:29:05,386 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 17:29:05,395 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 17:29:05,529 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 17:29:05,568 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 17:29:05,568 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 17:29:05,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:29:05,966 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:29:05,966 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:29:05,966 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:29:05,967 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:29:05,967 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:29:05,967 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:29:05,967 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:29:05,971 INFO L208 MainTranslator]: Completed translation [2023-08-30 17:29:05,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:29:05 WrapperNode [2023-08-30 17:29:05,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 17:29:05,973 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 17:29:05,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 17:29:05,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 17:29:05,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:29:05" (1/1) ... [2023-08-30 17:29:06,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:29:05" (1/1) ... [2023-08-30 17:29:06,092 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 70, statements flattened = 746 [2023-08-30 17:29:06,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 17:29:06,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 17:29:06,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 17:29:06,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 17:29:06,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:29:05" (1/1) ... [2023-08-30 17:29:06,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:29:05" (1/1) ... [2023-08-30 17:29:06,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:29:05" (1/1) ... [2023-08-30 17:29:06,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:29:05" (1/1) ... [2023-08-30 17:29:06,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:29:05" (1/1) ... [2023-08-30 17:29:06,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:29:05" (1/1) ... [2023-08-30 17:29:06,146 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:29:05" (1/1) ... [2023-08-30 17:29:06,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:29:05" (1/1) ... [2023-08-30 17:29:06,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 17:29:06,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 17:29:06,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 17:29:06,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 17:29:06,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:29:05" (1/1) ... [2023-08-30 17:29:06,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:29:06,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:29:06,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 17:29:06,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 17:29:06,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 17:29:06,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 17:29:06,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 17:29:06,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 17:29:06,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 17:29:06,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 17:29:06,217 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2023-08-30 17:29:06,217 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2023-08-30 17:29:06,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-30 17:29:06,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 17:29:06,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 17:29:06,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 17:29:06,217 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_configure [2023-08-30 17:29:06,217 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_configure [2023-08-30 17:29:06,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 17:29:06,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 17:29:06,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 17:29:06,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-30 17:29:06,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 17:29:06,220 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 17:29:06,597 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 17:29:06,598 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 17:29:07,226 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 17:29:07,251 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 17:29:07,251 INFO L302 CfgBuilder]: Removed 21 assume(true) statements. [2023-08-30 17:29:07,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:29:07 BoogieIcfgContainer [2023-08-30 17:29:07,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 17:29:07,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 17:29:07,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 17:29:07,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 17:29:07,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:29:02" (1/3) ... [2023-08-30 17:29:07,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7ac7cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:29:07, skipping insertion in model container [2023-08-30 17:29:07,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:29:05" (2/3) ... [2023-08-30 17:29:07,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7ac7cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:29:07, skipping insertion in model container [2023-08-30 17:29:07,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:29:07" (3/3) ... [2023-08-30 17:29:07,259 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_configure.i [2023-08-30 17:29:07,264 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 17:29:07,269 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 17:29:07,270 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-30 17:29:07,270 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 17:29:07,400 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 17:29:07,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 776 places, 818 transitions, 1652 flow [2023-08-30 17:29:07,673 INFO L130 PetriNetUnfolder]: 49/816 cut-off events. [2023-08-30 17:29:07,674 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 17:29:07,681 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 17:29:07,681 INFO L82 GeneralOperation]: Start removeDead. Operand has 776 places, 818 transitions, 1652 flow [2023-08-30 17:29:07,690 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 766 places, 808 transitions, 1625 flow [2023-08-30 17:29:07,692 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 17:29:07,709 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 766 places, 808 transitions, 1625 flow [2023-08-30 17:29:07,712 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 766 places, 808 transitions, 1625 flow [2023-08-30 17:29:07,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 766 places, 808 transitions, 1625 flow [2023-08-30 17:29:07,839 INFO L130 PetriNetUnfolder]: 49/808 cut-off events. [2023-08-30 17:29:07,839 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 17:29:07,842 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 17:29:07,848 INFO L119 LiptonReduction]: Number of co-enabled transitions 18816 [2023-08-30 17:30:42,117 WARN L222 SmtUtils]: Spent 21.15s 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 17:31:03,683 WARN L222 SmtUtils]: Spent 21.56s 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 17:31:18,580 WARN L222 SmtUtils]: Spent 14.89s 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 17:31:33,487 WARN L222 SmtUtils]: Spent 14.91s 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 17:33:49,070 WARN L222 SmtUtils]: Spent 2.19m 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) [2023-08-30 17:34:56,179 WARN L222 SmtUtils]: Spent 1.12m on a formula simplification that was a NOOP. DAG size: 581 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:36:54,234 WARN L222 SmtUtils]: Spent 1.97m 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) [2023-08-30 17:37:49,640 WARN L222 SmtUtils]: Spent 55.40s on a formula simplification that was a NOOP. DAG size: 584 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:38:06,009 WARN L222 SmtUtils]: Spent 7.10s 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) [2023-08-30 17:38:08,371 INFO L134 LiptonReduction]: Checked pairs total: 15299 [2023-08-30 17:38:08,371 INFO L136 LiptonReduction]: Total number of compositions: 909 [2023-08-30 17:38:08,384 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 17:38:08,388 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;@53e2dbd5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 17:38:08,388 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-30 17:38:08,396 INFO L130 PetriNetUnfolder]: 4/8 cut-off events. [2023-08-30 17:38:08,396 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:38:08,396 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:38:08,397 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 17:38:08,398 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)] === [2023-08-30 17:38:08,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:38:08,401 INFO L85 PathProgramCache]: Analyzing trace with hash 3031322, now seen corresponding path program 1 times [2023-08-30 17:38:08,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:38:08,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731155078] [2023-08-30 17:38:08,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:38:08,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:38:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:38:08,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:38:08,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:38:08,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731155078] [2023-08-30 17:38:08,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731155078] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:38:08,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:38:08,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 17:38:08,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680629230] [2023-08-30 17:38:08,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:38:08,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 17:38:08,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:38:08,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 17:38:08,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 17:38:08,792 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 787 out of 1727 [2023-08-30 17:38:08,797 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) [2023-08-30 17:38:08,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:38:08,797 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 787 of 1727 [2023-08-30 17:38:08,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:38:09,028 INFO L130 PetriNetUnfolder]: 61/127 cut-off events. [2023-08-30 17:38:09,029 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 17:38:09,030 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. [2023-08-30 17:38:09,031 INFO L137 encePairwiseOnDemand]: 1717/1727 looper letters, 31 selfloop transitions, 0 changer transitions 4/35 dead transitions. [2023-08-30 17:38:09,032 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 35 transitions, 149 flow [2023-08-30 17:38:09,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 17:38:09,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 17:38:09,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1619 transitions. [2023-08-30 17:38:09,049 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4687319050376375 [2023-08-30 17:38:09,050 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1619 transitions. [2023-08-30 17:38:09,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1619 transitions. [2023-08-30 17:38:09,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:38:09,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1619 transitions. [2023-08-30 17:38:09,063 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) [2023-08-30 17:38:09,070 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) [2023-08-30 17:38:09,072 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) [2023-08-30 17:38:09,073 INFO L175 Difference]: Start difference. First operand has 33 places, 45 transitions, 99 flow. Second operand 2 states and 1619 transitions. [2023-08-30 17:38:09,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 35 transitions, 149 flow [2023-08-30 17:38:09,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 35 transitions, 144 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 17:38:09,077 INFO L231 Difference]: Finished difference. Result has 30 places, 31 transitions, 65 flow [2023-08-30 17:38:09,079 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} [2023-08-30 17:38:09,081 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -3 predicate places. [2023-08-30 17:38:09,081 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 31 transitions, 65 flow [2023-08-30 17:38:09,082 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) [2023-08-30 17:38:09,082 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:38:09,082 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 17:38:09,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 17:38:09,083 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)] === [2023-08-30 17:38:09,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:38:09,088 INFO L85 PathProgramCache]: Analyzing trace with hash 108908993, now seen corresponding path program 1 times [2023-08-30 17:38:09,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:38:09,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160390597] [2023-08-30 17:38:09,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:38:09,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:38:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:38:09,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:38:09,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:38:09,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160390597] [2023-08-30 17:38:09,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160390597] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:38:09,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:38:09,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 17:38:09,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470009861] [2023-08-30 17:38:09,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:38:09,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 17:38:09,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:38:09,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 17:38:09,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 17:38:09,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 769 out of 1727 [2023-08-30 17:38:09,692 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) [2023-08-30 17:38:09,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:38:09,692 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 769 of 1727 [2023-08-30 17:38:09,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:38:10,014 INFO L130 PetriNetUnfolder]: 39/89 cut-off events. [2023-08-30 17:38:10,014 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:38:10,015 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. [2023-08-30 17:38:10,015 INFO L137 encePairwiseOnDemand]: 1722/1727 looper letters, 32 selfloop transitions, 4 changer transitions 0/36 dead transitions. [2023-08-30 17:38:10,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 36 transitions, 149 flow [2023-08-30 17:38:10,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 17:38:10,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 17:38:10,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2344 transitions. [2023-08-30 17:38:10,020 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45242231229492375 [2023-08-30 17:38:10,020 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2344 transitions. [2023-08-30 17:38:10,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2344 transitions. [2023-08-30 17:38:10,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:38:10,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2344 transitions. [2023-08-30 17:38:10,024 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) [2023-08-30 17:38:10,030 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) [2023-08-30 17:38:10,033 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) [2023-08-30 17:38:10,033 INFO L175 Difference]: Start difference. First operand has 30 places, 31 transitions, 65 flow. Second operand 3 states and 2344 transitions. [2023-08-30 17:38:10,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 36 transitions, 149 flow [2023-08-30 17:38:10,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 36 transitions, 149 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 17:38:10,034 INFO L231 Difference]: Finished difference. Result has 29 places, 34 transitions, 91 flow [2023-08-30 17:38:10,034 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} [2023-08-30 17:38:10,035 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -4 predicate places. [2023-08-30 17:38:10,035 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 34 transitions, 91 flow [2023-08-30 17:38:10,036 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) [2023-08-30 17:38:10,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:38:10,037 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:38:10,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 17:38:10,038 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)] === [2023-08-30 17:38:10,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:38:10,039 INFO L85 PathProgramCache]: Analyzing trace with hash -918788636, now seen corresponding path program 1 times [2023-08-30 17:38:10,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:38:10,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573806542] [2023-08-30 17:38:10,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:38:10,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:38:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:38:10,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:38:10,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:38:10,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573806542] [2023-08-30 17:38:10,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573806542] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:38:10,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:38:10,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 17:38:10,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717945829] [2023-08-30 17:38:10,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:38:10,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 17:38:10,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:38:10,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 17:38:10,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-30 17:38:11,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 760 out of 1727 [2023-08-30 17:38:11,163 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) [2023-08-30 17:38:11,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:38:11,163 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 760 of 1727 [2023-08-30 17:38:11,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:38:11,670 INFO L130 PetriNetUnfolder]: 34/80 cut-off events. [2023-08-30 17:38:11,671 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-08-30 17:38:11,672 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. [2023-08-30 17:38:11,672 INFO L137 encePairwiseOnDemand]: 1714/1727 looper letters, 27 selfloop transitions, 12 changer transitions 1/40 dead transitions. [2023-08-30 17:38:11,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 40 transitions, 195 flow [2023-08-30 17:38:11,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 17:38:11,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 17:38:11,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4601 transitions. [2023-08-30 17:38:11,680 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44402624975873384 [2023-08-30 17:38:11,680 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4601 transitions. [2023-08-30 17:38:11,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4601 transitions. [2023-08-30 17:38:11,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:38:11,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4601 transitions. [2023-08-30 17:38:11,688 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) [2023-08-30 17:38:11,698 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) [2023-08-30 17:38:11,702 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) [2023-08-30 17:38:11,702 INFO L175 Difference]: Start difference. First operand has 29 places, 34 transitions, 91 flow. Second operand 6 states and 4601 transitions. [2023-08-30 17:38:11,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 40 transitions, 195 flow [2023-08-30 17:38:11,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 40 transitions, 191 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 17:38:11,704 INFO L231 Difference]: Finished difference. Result has 33 places, 33 transitions, 119 flow [2023-08-30 17:38:11,704 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} [2023-08-30 17:38:11,705 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2023-08-30 17:38:11,705 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 33 transitions, 119 flow [2023-08-30 17:38:11,707 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) [2023-08-30 17:38:11,707 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:38:11,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:38:11,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 17:38:11,709 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)] === [2023-08-30 17:38:11,710 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:38:11,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1016561602, now seen corresponding path program 1 times [2023-08-30 17:38:11,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:38:11,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988525449] [2023-08-30 17:38:11,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:38:11,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:38:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:38:12,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:38:12,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:38:12,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988525449] [2023-08-30 17:38:12,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988525449] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:38:12,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:38:12,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 17:38:12,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599173472] [2023-08-30 17:38:12,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:38:12,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 17:38:12,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:38:12,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 17:38:12,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-30 17:38:12,858 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 766 out of 1727 [2023-08-30 17:38:12,861 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) [2023-08-30 17:38:12,861 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:38:12,861 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 766 of 1727 [2023-08-30 17:38:12,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:38:13,295 INFO L130 PetriNetUnfolder]: 34/84 cut-off events. [2023-08-30 17:38:13,295 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2023-08-30 17:38:13,295 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. [2023-08-30 17:38:13,295 INFO L137 encePairwiseOnDemand]: 1722/1727 looper letters, 25 selfloop transitions, 4 changer transitions 12/41 dead transitions. [2023-08-30 17:38:13,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 41 transitions, 231 flow [2023-08-30 17:38:13,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 17:38:13,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 17:38:13,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3870 transitions. [2023-08-30 17:38:13,302 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4481760277938622 [2023-08-30 17:38:13,302 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3870 transitions. [2023-08-30 17:38:13,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3870 transitions. [2023-08-30 17:38:13,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:38:13,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3870 transitions. [2023-08-30 17:38:13,308 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) [2023-08-30 17:38:13,316 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) [2023-08-30 17:38:13,317 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) [2023-08-30 17:38:13,317 INFO L175 Difference]: Start difference. First operand has 33 places, 33 transitions, 119 flow. Second operand 5 states and 3870 transitions. [2023-08-30 17:38:13,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 41 transitions, 231 flow [2023-08-30 17:38:13,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 41 transitions, 211 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 17:38:13,319 INFO L231 Difference]: Finished difference. Result has 34 places, 29 transitions, 89 flow [2023-08-30 17:38:13,319 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} [2023-08-30 17:38:13,320 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2023-08-30 17:38:13,320 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 29 transitions, 89 flow [2023-08-30 17:38:13,321 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) [2023-08-30 17:38:13,321 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:38:13,321 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:38:13,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 17:38:13,322 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)] === [2023-08-30 17:38:13,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:38:13,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1806745026, now seen corresponding path program 2 times [2023-08-30 17:38:13,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:38:13,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299306822] [2023-08-30 17:38:13,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:38:13,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:38:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:38:14,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:38:14,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:38:14,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299306822] [2023-08-30 17:38:14,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299306822] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:38:14,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:38:14,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 17:38:14,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936877207] [2023-08-30 17:38:14,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:38:14,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 17:38:14,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:38:14,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 17:38:14,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-08-30 17:38:14,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 759 out of 1727 [2023-08-30 17:38:14,840 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) [2023-08-30 17:38:14,841 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:38:14,841 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 759 of 1727 [2023-08-30 17:38:14,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:38:15,635 INFO L130 PetriNetUnfolder]: 11/32 cut-off events. [2023-08-30 17:38:15,635 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2023-08-30 17:38:15,635 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. [2023-08-30 17:38:15,636 INFO L137 encePairwiseOnDemand]: 1717/1727 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2023-08-30 17:38:15,636 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 28 transitions, 137 flow [2023-08-30 17:38:15,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 17:38:15,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 17:38:15,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4583 transitions. [2023-08-30 17:38:15,643 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4422891333719359 [2023-08-30 17:38:15,643 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4583 transitions. [2023-08-30 17:38:15,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4583 transitions. [2023-08-30 17:38:15,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:38:15,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4583 transitions. [2023-08-30 17:38:15,649 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) [2023-08-30 17:38:15,657 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) [2023-08-30 17:38:15,659 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) [2023-08-30 17:38:15,659 INFO L175 Difference]: Start difference. First operand has 34 places, 29 transitions, 89 flow. Second operand 6 states and 4583 transitions. [2023-08-30 17:38:15,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 28 transitions, 137 flow [2023-08-30 17:38:15,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 28 transitions, 115 flow, removed 2 selfloop flow, removed 9 redundant places. [2023-08-30 17:38:15,660 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2023-08-30 17:38:15,660 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} [2023-08-30 17:38:15,660 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -4 predicate places. [2023-08-30 17:38:15,661 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2023-08-30 17:38:15,662 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) [2023-08-30 17:38:15,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-08-30 17:38:15,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-08-30 17:38:15,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-08-30 17:38:15,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-08-30 17:38:15,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-08-30 17:38:15,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 17:38:15,665 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-08-30 17:38:15,668 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 17:38:15,668 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 17:38:15,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:38:15 BasicIcfg [2023-08-30 17:38:15,670 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 17:38:15,670 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 17:38:15,670 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 17:38:15,670 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 17:38:15,670 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:29:07" (3/4) ... [2023-08-30 17:38:15,672 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 17:38:15,675 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_pc8736x_gpio_open [2023-08-30 17:38:15,675 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_pc8736x_gpio_configure [2023-08-30 17:38:15,682 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 94 nodes and edges [2023-08-30 17:38:15,682 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-08-30 17:38:15,683 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-08-30 17:38:15,683 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 17:38:15,745 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 17:38:15,746 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 17:38:15,746 INFO L158 Benchmark]: Toolchain (without parser) took 553135.90ms. Allocated memory was 75.5MB in the beginning and 310.4MB in the end (delta: 234.9MB). Free memory was 46.8MB in the beginning and 80.9MB in the end (delta: -34.1MB). Peak memory consumption was 201.6MB. Max. memory is 16.1GB. [2023-08-30 17:38:15,746 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 75.5MB. Free memory was 54.0MB in the beginning and 53.9MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:38:15,746 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3360.71ms. Allocated memory was 75.5MB in the beginning and 132.1MB in the end (delta: 56.6MB). Free memory was 46.6MB in the beginning and 75.8MB in the end (delta: -29.2MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2023-08-30 17:38:15,747 INFO L158 Benchmark]: Boogie Procedure Inliner took 119.86ms. Allocated memory is still 132.1MB. Free memory was 75.8MB in the beginning and 64.4MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 17:38:15,747 INFO L158 Benchmark]: Boogie Preprocessor took 76.36ms. Allocated memory is still 132.1MB. Free memory was 64.4MB in the beginning and 58.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-08-30 17:38:15,747 INFO L158 Benchmark]: RCFGBuilder took 1083.63ms. Allocated memory is still 132.1MB. Free memory was 58.1MB in the beginning and 62.5MB in the end (delta: -4.4MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. [2023-08-30 17:38:15,747 INFO L158 Benchmark]: TraceAbstraction took 548414.38ms. Allocated memory was 132.1MB in the beginning and 310.4MB in the end (delta: 178.3MB). Free memory was 61.8MB in the beginning and 90.4MB in the end (delta: -28.6MB). Peak memory consumption was 149.0MB. Max. memory is 16.1GB. [2023-08-30 17:38:15,747 INFO L158 Benchmark]: Witness Printer took 75.63ms. Allocated memory is still 310.4MB. Free memory was 90.4MB in the beginning and 80.9MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 17:38:15,749 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 75.5MB. Free memory was 54.0MB in the beginning and 53.9MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3360.71ms. Allocated memory was 75.5MB in the beginning and 132.1MB in the end (delta: 56.6MB). Free memory was 46.6MB in the beginning and 75.8MB in the end (delta: -29.2MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 119.86ms. Allocated memory is still 132.1MB. Free memory was 75.8MB in the beginning and 64.4MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.36ms. Allocated memory is still 132.1MB. Free memory was 64.4MB in the beginning and 58.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1083.63ms. Allocated memory is still 132.1MB. Free memory was 58.1MB in the beginning and 62.5MB in the end (delta: -4.4MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. * TraceAbstraction took 548414.38ms. Allocated memory was 132.1MB in the beginning and 310.4MB in the end (delta: 178.3MB). Free memory was 61.8MB in the beginning and 90.4MB in the end (delta: -28.6MB). Peak memory consumption was 149.0MB. Max. memory is 16.1GB. * Witness Printer took 75.63ms. Allocated memory is still 310.4MB. Free memory was 90.4MB in the beginning and 80.9MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 540.7s, 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: 548.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 540.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1150 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 841 mSDsluCounter, 1025 SdHoareTripleChecker+Invalid, 2.6s 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, 0.1s 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: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.2s 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! [2023-08-30 17:38:15,794 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