./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_current.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 851106f2567c562a13ee43b8e8fe7cdbbfa2cb6fa414a1f64a1bc4b82171765c --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 09:21:19,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 09:21:19,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 09:21:19,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 09:21:19,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 09:21:19,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 09:21:19,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 09:21:19,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 09:21:19,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 09:21:19,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 09:21:19,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 09:21:19,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 09:21:19,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 09:21:19,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 09:21:19,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 09:21:19,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 09:21:19,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 09:21:19,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 09:21:19,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 09:21:19,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 09:21:19,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 09:21:19,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 09:21:19,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 09:21:19,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 09:21:19,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 09:21:19,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 09:21:19,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 09:21:19,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 09:21:19,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 09:21:19,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 09:21:19,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 09:21:19,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 09:21:19,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 09:21:19,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 09:21:19,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 09:21:19,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 09:21:19,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 09:21:19,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 09:21:19,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 09:21:19,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 09:21:19,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 09:21:19,309 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 09:21:19,325 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 09:21:19,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 09:21:19,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 09:21:19,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 09:21:19,327 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 09:21:19,328 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 09:21:19,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 09:21:19,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 09:21:19,329 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 09:21:19,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 09:21:19,330 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 09:21:19,330 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 09:21:19,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 09:21:19,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 09:21:19,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 09:21:19,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 09:21:19,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 09:21:19,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 09:21:19,331 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 09:21:19,331 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 09:21:19,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 09:21:19,331 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 09:21:19,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 09:21:19,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 09:21:19,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 09:21:19,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 09:21:19,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:21:19,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 09:21:19,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 09:21:19,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 09:21:19,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 09:21:19,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 09:21:19,333 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 09:21:19,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 09:21:19,333 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 09:21:19,333 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 09:21:19,333 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 09:21:19,333 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 851106f2567c562a13ee43b8e8fe7cdbbfa2cb6fa414a1f64a1bc4b82171765c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 09:21:19,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 09:21:19,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 09:21:19,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 09:21:19,608 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 09:21:19,608 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 09:21:19,609 INFO L432 ainManager$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_current.i [2023-08-30 09:21:20,543 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 09:21:20,891 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 09:21:20,892 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i [2023-08-30 09:21:20,922 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94a274ed0/9a798c1f07634041849ba30562797629/FLAG3fa83b9b9 [2023-08-30 09:21:20,938 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94a274ed0/9a798c1f07634041849ba30562797629 [2023-08-30 09:21:20,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 09:21:20,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 09:21:20,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 09:21:20,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 09:21:20,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 09:21:20,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:21:20" (1/1) ... [2023-08-30 09:21:20,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f921d16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:21:20, skipping insertion in model container [2023-08-30 09:21:20,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:21:20" (1/1) ... [2023-08-30 09:21:20,950 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 09:21:21,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 09:21:21,236 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_current.i[5469,5482] [2023-08-30 09:21:23,146 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 09:21:23,526 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 09:21:23,528 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 09:21:23,575 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:21:23,588 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 09:21:23,604 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_current.i[5469,5482] [2023-08-30 09:21:23,777 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 09:21:23,825 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 09:21:23,826 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 09:21:23,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:21:24,247 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:21:24,248 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:21:24,248 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:21:24,248 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:21:24,248 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:21:24,248 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:21:24,248 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:21:24,253 INFO L208 MainTranslator]: Completed translation [2023-08-30 09:21:24,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:21:24 WrapperNode [2023-08-30 09:21:24,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 09:21:24,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 09:21:24,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 09:21:24,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 09:21:24,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:21:24" (1/1) ... [2023-08-30 09:21:24,316 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:21:24" (1/1) ... [2023-08-30 09:21:24,369 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 49, statements flattened = 661 [2023-08-30 09:21:24,370 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 09:21:24,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 09:21:24,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 09:21:24,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 09:21:24,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:21:24" (1/1) ... [2023-08-30 09:21:24,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:21:24" (1/1) ... [2023-08-30 09:21:24,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:21:24" (1/1) ... [2023-08-30 09:21:24,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:21:24" (1/1) ... [2023-08-30 09:21:24,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:21:24" (1/1) ... [2023-08-30 09:21:24,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:21:24" (1/1) ... [2023-08-30 09:21:24,398 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:21:24" (1/1) ... [2023-08-30 09:21:24,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:21:24" (1/1) ... [2023-08-30 09:21:24,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 09:21:24,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 09:21:24,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 09:21:24,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 09:21:24,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:21:24" (1/1) ... [2023-08-30 09:21:24,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:21:24,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:21:24,441 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 09:21:24,465 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 09:21:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 09:21:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 09:21:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 09:21:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 09:21:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2023-08-30 09:21:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2023-08-30 09:21:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 09:21:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 09:21:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2023-08-30 09:21:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2023-08-30 09:21:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-30 09:21:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 09:21:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 09:21:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 09:21:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 09:21:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-30 09:21:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 09:21:24,484 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 09:21:24,920 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 09:21:24,922 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 09:21:25,581 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 09:21:25,588 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 09:21:25,588 INFO L302 CfgBuilder]: Removed 21 assume(true) statements. [2023-08-30 09:21:25,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:21:25 BoogieIcfgContainer [2023-08-30 09:21:25,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 09:21:25,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 09:21:25,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 09:21:25,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 09:21:25,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 09:21:20" (1/3) ... [2023-08-30 09:21:25,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76588348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:21:25, skipping insertion in model container [2023-08-30 09:21:25,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:21:24" (2/3) ... [2023-08-30 09:21:25,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76588348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:21:25, skipping insertion in model container [2023-08-30 09:21:25,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:21:25" (3/3) ... [2023-08-30 09:21:25,595 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i [2023-08-30 09:21:25,600 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 09:21:25,606 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 09:21:25,606 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-08-30 09:21:25,606 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 09:21:25,773 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 09:21:25,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 707 places, 743 transitions, 1502 flow [2023-08-30 09:21:26,017 INFO L130 PetriNetUnfolder]: 43/741 cut-off events. [2023-08-30 09:21:26,017 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 09:21:26,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 750 conditions, 741 events. 43/741 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 884 event pairs, 0 based on Foata normal form. 0/676 useless extension candidates. Maximal degree in co-relation 695. Up to 9 conditions per place. [2023-08-30 09:21:26,035 INFO L82 GeneralOperation]: Start removeDead. Operand has 707 places, 743 transitions, 1502 flow [2023-08-30 09:21:26,042 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 532 places, 550 transitions, 1100 flow [2023-08-30 09:21:26,044 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 09:21:26,053 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 532 places, 550 transitions, 1100 flow [2023-08-30 09:21:26,056 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 532 places, 550 transitions, 1100 flow [2023-08-30 09:21:26,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 532 places, 550 transitions, 1100 flow [2023-08-30 09:21:26,144 INFO L130 PetriNetUnfolder]: 19/550 cut-off events. [2023-08-30 09:21:26,145 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:21:26,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 551 conditions, 550 events. 19/550 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 211 event pairs, 0 based on Foata normal form. 0/510 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2023-08-30 09:21:26,148 INFO L119 LiptonReduction]: Number of co-enabled transitions 0 [2023-08-30 09:24:34,789 WARN L222 SmtUtils]: Spent 2.23m on a formula simplification. DAG size of input: 639 DAG size of output: 637 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:25:31,981 WARN L222 SmtUtils]: Spent 57.17s on a formula simplification that was a NOOP. DAG size: 551 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:26:17,922 WARN L222 SmtUtils]: Spent 45.94s on a formula simplification. DAG size of input: 642 DAG size of output: 640 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:27:06,004 WARN L222 SmtUtils]: Spent 48.06s on a formula simplification that was a NOOP. DAG size: 554 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:28:16,094 WARN L222 SmtUtils]: Spent 1.13m on a formula simplification that was a NOOP. DAG size: 585 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:29:21,004 WARN L222 SmtUtils]: Spent 1.08m 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 09:30:28,458 WARN L222 SmtUtils]: Spent 1.12m on a formula simplification that was a NOOP. DAG size: 588 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:31:36,638 WARN L222 SmtUtils]: Spent 1.14m on a formula simplification that was a NOOP. DAG size: 584 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:31:41,746 INFO L134 LiptonReduction]: Checked pairs total: 0 [2023-08-30 09:31:41,746 INFO L136 LiptonReduction]: Total number of compositions: 638 [2023-08-30 09:31:41,755 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 09:31:41,759 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;@10d2e7fd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 09:31:41,760 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-08-30 09:31:41,765 INFO L130 PetriNetUnfolder]: 2/4 cut-off events. [2023-08-30 09:31:41,765 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:31:41,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:31:41,766 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 09:31:41,766 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-08-30 09:31:41,770 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:31:41,770 INFO L85 PathProgramCache]: Analyzing trace with hash 2421679, now seen corresponding path program 1 times [2023-08-30 09:31:41,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:31:41,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271379335] [2023-08-30 09:31:41,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:41,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:31:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:42,199 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 09:31:42,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:31:42,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271379335] [2023-08-30 09:31:42,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271379335] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:31:42,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:31:42,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:31:42,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235515663] [2023-08-30 09:31:42,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:31:42,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 09:31:42,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:31:42,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 09:31:42,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 09:31:42,238 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 697 out of 1381 [2023-08-30 09:31:42,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 35 transitions, 70 flow. Second operand has 2 states, 2 states have (on average 698.5) internal successors, (1397), 2 states have internal predecessors, (1397), 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 09:31:42,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:31:42,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 697 of 1381 [2023-08-30 09:31:42,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:31:42,450 INFO L130 PetriNetUnfolder]: 4/14 cut-off events. [2023-08-30 09:31:42,451 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:31:42,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 14 events. 4/14 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 16 event pairs, 0 based on Foata normal form. 0/7 useless extension candidates. Maximal degree in co-relation 0. Up to 15 conditions per place. [2023-08-30 09:31:42,452 INFO L137 encePairwiseOnDemand]: 1360/1381 looper letters, 14 selfloop transitions, 0 changer transitions 0/14 dead transitions. [2023-08-30 09:31:42,452 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 14 transitions, 56 flow [2023-08-30 09:31:42,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 09:31:42,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 09:31:42,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1429 transitions. [2023-08-30 09:31:42,490 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5173787110789283 [2023-08-30 09:31:42,491 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1429 transitions. [2023-08-30 09:31:42,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1429 transitions. [2023-08-30 09:31:42,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:31:42,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1429 transitions. [2023-08-30 09:31:42,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 714.5) internal successors, (1429), 2 states have internal predecessors, (1429), 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 09:31:42,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1381.0) internal successors, (4143), 3 states have internal predecessors, (4143), 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 09:31:42,508 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1381.0) internal successors, (4143), 3 states have internal predecessors, (4143), 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 09:31:42,510 INFO L175 Difference]: Start difference. First operand has 29 places, 35 transitions, 70 flow. Second operand 2 states and 1429 transitions. [2023-08-30 09:31:42,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 14 transitions, 56 flow [2023-08-30 09:31:42,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 14 transitions, 56 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 09:31:42,512 INFO L231 Difference]: Finished difference. Result has 12 places, 14 transitions, 28 flow [2023-08-30 09:31:42,513 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1381, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=28, PETRI_PLACES=12, PETRI_TRANSITIONS=14} [2023-08-30 09:31:42,515 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -17 predicate places. [2023-08-30 09:31:42,516 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 14 transitions, 28 flow [2023-08-30 09:31:42,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 698.5) internal successors, (1397), 2 states have internal predecessors, (1397), 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 09:31:42,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:31:42,517 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 09:31:42,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 09:31:42,517 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-08-30 09:31:42,518 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:31:42,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1967596405, now seen corresponding path program 1 times [2023-08-30 09:31:42,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:31:42,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434969782] [2023-08-30 09:31:42,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:42,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:31:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:42,759 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 09:31:42,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:31:42,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434969782] [2023-08-30 09:31:42,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434969782] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:31:42,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:31:42,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:31:42,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282829670] [2023-08-30 09:31:42,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:31:42,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:31:42,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:31:42,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:31:42,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:31:42,788 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 687 out of 1381 [2023-08-30 09:31:42,790 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 14 transitions, 28 flow. Second operand has 3 states, 3 states have (on average 688.6666666666666) internal successors, (2066), 3 states have internal predecessors, (2066), 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 09:31:42,790 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:31:42,791 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 687 of 1381 [2023-08-30 09:31:42,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:31:42,973 INFO L130 PetriNetUnfolder]: 4/12 cut-off events. [2023-08-30 09:31:42,974 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:31:42,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 12 events. 4/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 8 event pairs, 0 based on Foata normal form. 0/7 useless extension candidates. Maximal degree in co-relation 24. Up to 7 conditions per place. [2023-08-30 09:31:42,975 INFO L137 encePairwiseOnDemand]: 1376/1381 looper letters, 9 selfloop transitions, 3 changer transitions 0/12 dead transitions. [2023-08-30 09:31:42,975 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 12 transitions, 48 flow [2023-08-30 09:31:42,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:31:42,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:31:42,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2075 transitions. [2023-08-30 09:31:42,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5008447984552257 [2023-08-30 09:31:42,981 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2075 transitions. [2023-08-30 09:31:42,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2075 transitions. [2023-08-30 09:31:42,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:31:42,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2075 transitions. [2023-08-30 09:31:42,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 691.6666666666666) internal successors, (2075), 3 states have internal predecessors, (2075), 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 09:31:42,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1381.0) internal successors, (5524), 4 states have internal predecessors, (5524), 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 09:31:42,997 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1381.0) internal successors, (5524), 4 states have internal predecessors, (5524), 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 09:31:42,997 INFO L175 Difference]: Start difference. First operand has 12 places, 14 transitions, 28 flow. Second operand 3 states and 2075 transitions. [2023-08-30 09:31:42,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 12 transitions, 48 flow [2023-08-30 09:31:42,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 12 transitions, 48 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 09:31:42,998 INFO L231 Difference]: Finished difference. Result has 12 places, 12 transitions, 30 flow [2023-08-30 09:31:42,998 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1381, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=30, PETRI_PLACES=12, PETRI_TRANSITIONS=12} [2023-08-30 09:31:42,999 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -17 predicate places. [2023-08-30 09:31:42,999 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 12 transitions, 30 flow [2023-08-30 09:31:43,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 688.6666666666666) internal successors, (2066), 3 states have internal predecessors, (2066), 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 09:31:43,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:31:43,001 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 09:31:43,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 09:31:43,002 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-08-30 09:31:43,005 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:31:43,005 INFO L85 PathProgramCache]: Analyzing trace with hash -865937416, now seen corresponding path program 1 times [2023-08-30 09:31:43,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:31:43,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037852540] [2023-08-30 09:31:43,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:43,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:31:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:43,183 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 09:31:43,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:31:43,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037852540] [2023-08-30 09:31:43,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037852540] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:31:43,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:31:43,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 09:31:43,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174183036] [2023-08-30 09:31:43,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:31:43,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:31:43,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:31:43,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:31:43,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:31:43,203 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 690 out of 1381 [2023-08-30 09:31:43,205 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 12 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 692.0) internal successors, (2076), 3 states have internal predecessors, (2076), 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 09:31:43,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:31:43,205 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 690 of 1381 [2023-08-30 09:31:43,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:31:43,669 INFO L130 PetriNetUnfolder]: 4/13 cut-off events. [2023-08-30 09:31:43,670 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:31:43,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 13 events. 4/13 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 7 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 29. Up to 12 conditions per place. [2023-08-30 09:31:43,670 INFO L137 encePairwiseOnDemand]: 1376/1381 looper letters, 10 selfloop transitions, 3 changer transitions 0/13 dead transitions. [2023-08-30 09:31:43,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 14 places, 13 transitions, 58 flow [2023-08-30 09:31:43,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:31:43,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:31:43,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2085 transitions. [2023-08-30 09:31:43,675 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.503258508327299 [2023-08-30 09:31:43,675 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2085 transitions. [2023-08-30 09:31:43,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2085 transitions. [2023-08-30 09:31:43,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:31:43,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2085 transitions. [2023-08-30 09:31:43,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 695.0) internal successors, (2085), 3 states have internal predecessors, (2085), 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 09:31:43,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1381.0) internal successors, (5524), 4 states have internal predecessors, (5524), 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 09:31:43,687 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1381.0) internal successors, (5524), 4 states have internal predecessors, (5524), 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 09:31:43,687 INFO L175 Difference]: Start difference. First operand has 12 places, 12 transitions, 30 flow. Second operand 3 states and 2085 transitions. [2023-08-30 09:31:43,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 14 places, 13 transitions, 58 flow [2023-08-30 09:31:43,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 13 transitions, 52 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 09:31:43,689 INFO L231 Difference]: Finished difference. Result has 13 places, 13 transitions, 41 flow [2023-08-30 09:31:43,689 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1381, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=41, PETRI_PLACES=13, PETRI_TRANSITIONS=13} [2023-08-30 09:31:43,697 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -16 predicate places. [2023-08-30 09:31:43,697 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 13 transitions, 41 flow [2023-08-30 09:31:43,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 692.0) internal successors, (2076), 3 states have internal predecessors, (2076), 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 09:31:43,698 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:31:43,698 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:31:43,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 09:31:43,698 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-08-30 09:31:43,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:31:43,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1074250566, now seen corresponding path program 1 times [2023-08-30 09:31:43,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:31:43,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301611155] [2023-08-30 09:31:43,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:43,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:31:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:43,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:43,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:31:43,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301611155] [2023-08-30 09:31:43,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301611155] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:31:43,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830047520] [2023-08-30 09:31:43,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:43,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:31:43,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:31:43,959 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:31:43,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 09:31:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:44,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 1131 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-30 09:31:44,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:31:44,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:44,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 09:31:44,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830047520] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:31:44,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 09:31:44,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-08-30 09:31:44,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212053434] [2023-08-30 09:31:44,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:31:44,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 09:31:44,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:31:44,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 09:31:44,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:31:44,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 690 out of 1381 [2023-08-30 09:31:44,431 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 13 places, 13 transitions, 41 flow. Second operand has 4 states, 4 states have (on average 691.75) internal successors, (2767), 4 states have internal predecessors, (2767), 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 09:31:44,431 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:31:44,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 690 of 1381 [2023-08-30 09:31:44,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:31:44,789 INFO L130 PetriNetUnfolder]: 4/12 cut-off events. [2023-08-30 09:31:44,790 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 09:31:44,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 12 events. 4/12 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/9 useless extension candidates. Maximal degree in co-relation 30. Up to 8 conditions per place. [2023-08-30 09:31:44,790 INFO L137 encePairwiseOnDemand]: 1377/1381 looper letters, 9 selfloop transitions, 3 changer transitions 0/12 dead transitions. [2023-08-30 09:31:44,790 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 12 transitions, 61 flow [2023-08-30 09:31:44,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 09:31:44,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 09:31:44,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2773 transitions. [2023-08-30 09:31:44,795 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5019913106444606 [2023-08-30 09:31:44,795 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2773 transitions. [2023-08-30 09:31:44,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2773 transitions. [2023-08-30 09:31:44,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:31:44,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2773 transitions. [2023-08-30 09:31:44,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 693.25) internal successors, (2773), 4 states have internal predecessors, (2773), 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 09:31:44,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1381.0) internal successors, (6905), 5 states have internal predecessors, (6905), 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 09:31:44,809 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1381.0) internal successors, (6905), 5 states have internal predecessors, (6905), 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 09:31:44,810 INFO L175 Difference]: Start difference. First operand has 13 places, 13 transitions, 41 flow. Second operand 4 states and 2773 transitions. [2023-08-30 09:31:44,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 12 transitions, 61 flow [2023-08-30 09:31:44,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 12 transitions, 56 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 09:31:44,810 INFO L231 Difference]: Finished difference. Result has 14 places, 12 transitions, 38 flow [2023-08-30 09:31:44,810 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1381, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=38, PETRI_PLACES=14, PETRI_TRANSITIONS=12} [2023-08-30 09:31:44,811 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -15 predicate places. [2023-08-30 09:31:44,811 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 12 transitions, 38 flow [2023-08-30 09:31:44,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 691.75) internal successors, (2767), 4 states have internal predecessors, (2767), 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 09:31:44,812 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:31:44,812 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:31:44,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 09:31:45,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:31:45,024 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-08-30 09:31:45,025 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:31:45,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1074250542, now seen corresponding path program 1 times [2023-08-30 09:31:45,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:31:45,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146946519] [2023-08-30 09:31:45,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:45,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:31:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:45,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:45,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:31:45,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146946519] [2023-08-30 09:31:45,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146946519] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:31:45,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:31:45,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 09:31:45,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918655860] [2023-08-30 09:31:45,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:31:45,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:31:45,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:31:45,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:31:45,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:31:45,215 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 689 out of 1381 [2023-08-30 09:31:45,216 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 12 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 691.3333333333334) internal successors, (2074), 3 states have internal predecessors, (2074), 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 09:31:45,216 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:31:45,216 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 689 of 1381 [2023-08-30 09:31:45,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:31:45,386 INFO L130 PetriNetUnfolder]: 4/11 cut-off events. [2023-08-30 09:31:45,386 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 09:31:45,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 11 events. 4/11 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/9 useless extension candidates. Maximal degree in co-relation 28. Up to 8 conditions per place. [2023-08-30 09:31:45,386 INFO L137 encePairwiseOnDemand]: 1378/1381 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2023-08-30 09:31:45,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 11 transitions, 56 flow [2023-08-30 09:31:45,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:31:45,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:31:45,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2078 transitions. [2023-08-30 09:31:45,390 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5015689114168477 [2023-08-30 09:31:45,390 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2078 transitions. [2023-08-30 09:31:45,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2078 transitions. [2023-08-30 09:31:45,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:31:45,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2078 transitions. [2023-08-30 09:31:45,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 692.6666666666666) internal successors, (2078), 3 states have internal predecessors, (2078), 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 09:31:45,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1381.0) internal successors, (5524), 4 states have internal predecessors, (5524), 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 09:31:45,400 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1381.0) internal successors, (5524), 4 states have internal predecessors, (5524), 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 09:31:45,400 INFO L175 Difference]: Start difference. First operand has 14 places, 12 transitions, 38 flow. Second operand 3 states and 2078 transitions. [2023-08-30 09:31:45,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 11 transitions, 56 flow [2023-08-30 09:31:45,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 11 transitions, 51 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 09:31:45,400 INFO L231 Difference]: Finished difference. Result has 13 places, 0 transitions, 0 flow [2023-08-30 09:31:45,400 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1381, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=13, PETRI_TRANSITIONS=0} [2023-08-30 09:31:45,401 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -16 predicate places. [2023-08-30 09:31:45,401 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 0 transitions, 0 flow [2023-08-30 09:31:45,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 691.3333333333334) internal successors, (2074), 3 states have internal predecessors, (2074), 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 09:31:45,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2023-08-30 09:31:45,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2023-08-30 09:31:45,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2023-08-30 09:31:45,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2023-08-30 09:31:45,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2023-08-30 09:31:45,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2023-08-30 09:31:45,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2023-08-30 09:31:45,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2023-08-30 09:31:45,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2023-08-30 09:31:45,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2023-08-30 09:31:45,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2023-08-30 09:31:45,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2023-08-30 09:31:45,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2023-08-30 09:31:45,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2023-08-30 09:31:45,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2023-08-30 09:31:45,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2023-08-30 09:31:45,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2023-08-30 09:31:45,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2023-08-30 09:31:45,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2023-08-30 09:31:45,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2023-08-30 09:31:45,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2023-08-30 09:31:45,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2023-08-30 09:31:45,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 24 remaining) [2023-08-30 09:31:45,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 24 remaining) [2023-08-30 09:31:45,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 09:31:45,408 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 09:31:45,410 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 09:31:45,410 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 09:31:45,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 09:31:45 BasicIcfg [2023-08-30 09:31:45,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 09:31:45,412 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 09:31:45,412 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 09:31:45,412 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 09:31:45,413 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:21:25" (3/4) ... [2023-08-30 09:31:45,414 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 09:31:45,418 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_pc8736x_gpio_open [2023-08-30 09:31:45,418 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_pc8736x_gpio_current [2023-08-30 09:31:45,426 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 94 nodes and edges [2023-08-30 09:31:45,427 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-08-30 09:31:45,427 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-08-30 09:31:45,428 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 09:31:45,471 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 09:31:45,471 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 09:31:45,471 INFO L158 Benchmark]: Toolchain (without parser) took 624530.63ms. Allocated memory was 81.8MB in the beginning and 413.1MB in the end (delta: 331.4MB). Free memory was 49.0MB in the beginning and 126.9MB in the end (delta: -77.9MB). Peak memory consumption was 252.9MB. Max. memory is 16.1GB. [2023-08-30 09:31:45,472 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 81.8MB. Free memory was 58.7MB in the beginning and 58.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 09:31:45,472 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3312.13ms. Allocated memory was 81.8MB in the beginning and 125.8MB in the end (delta: 44.0MB). Free memory was 48.9MB in the beginning and 64.1MB in the end (delta: -15.2MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. [2023-08-30 09:31:45,472 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.45ms. Allocated memory is still 125.8MB. Free memory was 64.1MB in the beginning and 52.9MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 09:31:45,472 INFO L158 Benchmark]: Boogie Preprocessor took 35.79ms. Allocated memory is still 125.8MB. Free memory was 52.9MB in the beginning and 47.3MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-08-30 09:31:45,472 INFO L158 Benchmark]: RCFGBuilder took 1183.35ms. Allocated memory is still 125.8MB. Free memory was 47.3MB in the beginning and 38.0MB in the end (delta: 9.3MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2023-08-30 09:31:45,473 INFO L158 Benchmark]: TraceAbstraction took 619821.05ms. Allocated memory was 125.8MB in the beginning and 413.1MB in the end (delta: 287.3MB). Free memory was 37.4MB in the beginning and 136.3MB in the end (delta: -98.9MB). Peak memory consumption was 188.6MB. Max. memory is 16.1GB. [2023-08-30 09:31:45,473 INFO L158 Benchmark]: Witness Printer took 58.86ms. Allocated memory is still 413.1MB. Free memory was 136.3MB in the beginning and 126.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-08-30 09:31:45,474 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 81.8MB. Free memory was 58.7MB in the beginning and 58.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3312.13ms. Allocated memory was 81.8MB in the beginning and 125.8MB in the end (delta: 44.0MB). Free memory was 48.9MB in the beginning and 64.1MB in the end (delta: -15.2MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 115.45ms. Allocated memory is still 125.8MB. Free memory was 64.1MB in the beginning and 52.9MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.79ms. Allocated memory is still 125.8MB. Free memory was 52.9MB in the beginning and 47.3MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1183.35ms. Allocated memory is still 125.8MB. Free memory was 47.3MB in the beginning and 38.0MB in the end (delta: 9.3MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * TraceAbstraction took 619821.05ms. Allocated memory was 125.8MB in the beginning and 413.1MB in the end (delta: 287.3MB). Free memory was 37.4MB in the beginning and 136.3MB in the end (delta: -98.9MB). Peak memory consumption was 188.6MB. Max. memory is 16.1GB. * Witness Printer took 58.86ms. Allocated memory is still 413.1MB. Free memory was 136.3MB in the beginning and 126.9MB in the end (delta: 9.4MB). 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: 615.7s, 532 PlacesBefore, 29 PlacesAfterwards, 550 TransitionsBefore, 35 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 10 FixpointIterations, 582 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 44 TrivialYvCompositions, 0 ConcurrentYvCompositions, 12 ChoiceCompositions, 638 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 6785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6938]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6938]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6938]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6947]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6947]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6947]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6900]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6900]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 782 locations, 24 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: 619.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 616.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 109 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 164 IncrementalHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 4 mSDtfsCounter, 164 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=0, InterpolantAutomatonStates: 15, 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, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1131 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 2/3 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 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 09:31:45,508 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