/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi005.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 06:20:49,123 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 06:20:49,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 06:20:49,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 06:20:49,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 06:20:49,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 06:20:49,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 06:20:49,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 06:20:49,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 06:20:49,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 06:20:49,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 06:20:49,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 06:20:49,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 06:20:49,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 06:20:49,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 06:20:49,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 06:20:49,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 06:20:49,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 06:20:49,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 06:20:49,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 06:20:49,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 06:20:49,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 06:20:49,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 06:20:49,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 06:20:49,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 06:20:49,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 06:20:49,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 06:20:49,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 06:20:49,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 06:20:49,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 06:20:49,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 06:20:49,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 06:20:49,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 06:20:49,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 06:20:49,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 06:20:49,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 06:20:49,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 06:20:49,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 06:20:49,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 06:20:49,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 06:20:49,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 06:20:49,238 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-13 06:20:49,272 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 06:20:49,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 06:20:49,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 06:20:49,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 06:20:49,275 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 06:20:49,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 06:20:49,276 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 06:20:49,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 06:20:49,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 06:20:49,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 06:20:49,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 06:20:49,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 06:20:49,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 06:20:49,277 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 06:20:49,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 06:20:49,278 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 06:20:49,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 06:20:49,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 06:20:49,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 06:20:49,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 06:20:49,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 06:20:49,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 06:20:49,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 06:20:49,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 06:20:49,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 06:20:49,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 06:20:49,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 06:20:49,279 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 06:20:49,280 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-13 06:20:49,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 06:20:49,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 06:20:49,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 06:20:49,626 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 06:20:49,627 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 06:20:49,628 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi005.i [2022-12-13 06:20:50,772 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 06:20:51,113 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 06:20:51,113 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi005.i [2022-12-13 06:20:51,141 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb2c4a656/5a72f5c2c0644705ac61cd5471a571bd/FLAG140ec0370 [2022-12-13 06:20:51,158 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb2c4a656/5a72f5c2c0644705ac61cd5471a571bd [2022-12-13 06:20:51,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 06:20:51,161 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 06:20:51,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 06:20:51,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 06:20:51,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 06:20:51,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:20:51" (1/1) ... [2022-12-13 06:20:51,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cfbde16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:20:51, skipping insertion in model container [2022-12-13 06:20:51,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:20:51" (1/1) ... [2022-12-13 06:20:51,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 06:20:51,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 06:20:51,388 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi005.i[983,996] [2022-12-13 06:20:51,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,563 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,568 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,569 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,571 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,582 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,582 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,592 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,594 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,594 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 06:20:51,611 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 06:20:51,623 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi005.i[983,996] [2022-12-13 06:20:51,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,667 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,667 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,668 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,669 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,669 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,677 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,677 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,677 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,679 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,679 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,679 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,682 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,683 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,683 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,685 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,685 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:20:51,690 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:20:51,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 06:20:51,731 INFO L208 MainTranslator]: Completed translation [2022-12-13 06:20:51,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:20:51 WrapperNode [2022-12-13 06:20:51,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 06:20:51,733 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 06:20:51,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 06:20:51,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 06:20:51,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:20:51" (1/1) ... [2022-12-13 06:20:51,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:20:51" (1/1) ... [2022-12-13 06:20:51,812 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 164 [2022-12-13 06:20:51,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 06:20:51,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 06:20:51,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 06:20:51,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 06:20:51,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:20:51" (1/1) ... [2022-12-13 06:20:51,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:20:51" (1/1) ... [2022-12-13 06:20:51,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:20:51" (1/1) ... [2022-12-13 06:20:51,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:20:51" (1/1) ... [2022-12-13 06:20:51,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:20:51" (1/1) ... [2022-12-13 06:20:51,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:20:51" (1/1) ... [2022-12-13 06:20:51,854 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:20:51" (1/1) ... [2022-12-13 06:20:51,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:20:51" (1/1) ... [2022-12-13 06:20:51,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 06:20:51,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 06:20:51,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 06:20:51,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 06:20:51,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:20:51" (1/1) ... [2022-12-13 06:20:51,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 06:20:51,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 06:20:51,908 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) [2022-12-13 06:20:51,931 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 [2022-12-13 06:20:51,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 06:20:51,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 06:20:51,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 06:20:51,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 06:20:51,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 06:20:51,951 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 06:20:51,951 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 06:20:51,951 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 06:20:51,951 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 06:20:51,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 06:20:51,951 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 06:20:51,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 06:20:51,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 06:20:51,953 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 06:20:52,080 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 06:20:52,082 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 06:20:52,448 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 06:20:52,619 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 06:20:52,619 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 06:20:52,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:20:52 BoogieIcfgContainer [2022-12-13 06:20:52,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 06:20:52,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 06:20:52,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 06:20:52,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 06:20:52,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:20:51" (1/3) ... [2022-12-13 06:20:52,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b11c230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:20:52, skipping insertion in model container [2022-12-13 06:20:52,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:20:51" (2/3) ... [2022-12-13 06:20:52,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b11c230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:20:52, skipping insertion in model container [2022-12-13 06:20:52,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:20:52" (3/3) ... [2022-12-13 06:20:52,630 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi005.i [2022-12-13 06:20:52,647 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 06:20:52,647 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-13 06:20:52,647 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 06:20:52,750 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 06:20:52,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 91 transitions, 192 flow [2022-12-13 06:20:52,841 INFO L130 PetriNetUnfolder]: 2/89 cut-off events. [2022-12-13 06:20:52,842 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 06:20:52,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 89 events. 2/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2022-12-13 06:20:52,848 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 91 transitions, 192 flow [2022-12-13 06:20:52,853 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 89 transitions, 184 flow [2022-12-13 06:20:52,855 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:20:52,875 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 89 transitions, 184 flow [2022-12-13 06:20:52,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 89 transitions, 184 flow [2022-12-13 06:20:52,926 INFO L130 PetriNetUnfolder]: 2/89 cut-off events. [2022-12-13 06:20:52,926 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 06:20:52,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 89 events. 2/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2022-12-13 06:20:52,930 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 89 transitions, 184 flow [2022-12-13 06:20:52,930 INFO L226 LiptonReduction]: Number of co-enabled transitions 1134 [2022-12-13 06:21:00,088 INFO L241 LiptonReduction]: Total number of compositions: 74 [2022-12-13 06:21:00,110 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 06:21:00,117 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=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, 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;@6b36c586, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 06:21:00,117 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 06:21:00,120 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2022-12-13 06:21:00,120 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 06:21:00,121 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:21:00,121 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 06:21:00,122 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 06:21:00,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:21:00,126 INFO L85 PathProgramCache]: Analyzing trace with hash 496865808, now seen corresponding path program 1 times [2022-12-13 06:21:00,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:21:00,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442489351] [2022-12-13 06:21:00,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:21:00,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:21:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:21:00,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:21:00,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:21:00,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442489351] [2022-12-13 06:21:00,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442489351] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:21:00,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:21:00,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 06:21:00,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109083914] [2022-12-13 06:21:00,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:21:00,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 06:21:00,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:21:00,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 06:21:00,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 06:21:00,531 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 47 [2022-12-13 06:21:00,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 47 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-12-13 06:21:00,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:21:00,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 47 [2022-12-13 06:21:00,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:21:01,142 INFO L130 PetriNetUnfolder]: 1577/2797 cut-off events. [2022-12-13 06:21:01,143 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 06:21:01,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5361 conditions, 2797 events. 1577/2797 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 17667 event pairs, 100 based on Foata normal form. 0/1563 useless extension candidates. Maximal degree in co-relation 5351. Up to 2318 conditions per place. [2022-12-13 06:21:01,160 INFO L137 encePairwiseOnDemand]: 42/47 looper letters, 63 selfloop transitions, 2 changer transitions 0/71 dead transitions. [2022-12-13 06:21:01,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 71 transitions, 278 flow [2022-12-13 06:21:01,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 06:21:01,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 06:21:01,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2022-12-13 06:21:01,171 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.624113475177305 [2022-12-13 06:21:01,175 INFO L295 CegarLoopForPetriNet]: 53 programPoint places, 0 predicate places. [2022-12-13 06:21:01,175 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 71 transitions, 278 flow [2022-12-13 06:21:01,184 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 71 transitions, 278 flow [2022-12-13 06:21:01,200 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:21:01,201 INFO L89 Accepts]: Start accepts. Operand has 53 places, 71 transitions, 278 flow [2022-12-13 06:21:01,203 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:21:01,204 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:21:01,204 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 71 transitions, 278 flow [2022-12-13 06:21:01,218 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 71 transitions, 278 flow [2022-12-13 06:21:01,218 INFO L226 LiptonReduction]: Number of co-enabled transitions 434 [2022-12-13 06:21:01,245 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:21:01,251 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 51 [2022-12-13 06:21:01,251 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 71 transitions, 278 flow [2022-12-13 06:21:01,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-12-13 06:21:01,252 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:21:01,252 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 06:21:01,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 06:21:01,255 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 06:21:01,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:21:01,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1777028727, now seen corresponding path program 1 times [2022-12-13 06:21:01,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:21:01,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510543818] [2022-12-13 06:21:01,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:21:01,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:21:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 06:21:01,284 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 06:21:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 06:21:01,315 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 06:21:01,315 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 06:21:01,317 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location P1Err1ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-12-13 06:21:01,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-12-13 06:21:01,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err1ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2022-12-13 06:21:01,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2022-12-13 06:21:01,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-12-13 06:21:01,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2022-12-13 06:21:01,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-13 06:21:01,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 06:21:01,319 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 06:21:01,324 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 06:21:01,324 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 06:21:01,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:21:01 BasicIcfg [2022-12-13 06:21:01,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 06:21:01,349 INFO L158 Benchmark]: Toolchain (without parser) took 10187.59ms. Allocated memory was 198.2MB in the beginning and 304.1MB in the end (delta: 105.9MB). Free memory was 172.2MB in the beginning and 147.1MB in the end (delta: 25.1MB). Peak memory consumption was 131.9MB. Max. memory is 8.0GB. [2022-12-13 06:21:01,349 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 198.2MB. Free memory was 174.5MB in the beginning and 174.3MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 06:21:01,350 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.12ms. Allocated memory is still 198.2MB. Free memory was 172.2MB in the beginning and 144.5MB in the end (delta: 27.7MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-12-13 06:21:01,350 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.42ms. Allocated memory is still 198.2MB. Free memory was 144.0MB in the beginning and 141.0MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-13 06:21:01,350 INFO L158 Benchmark]: Boogie Preprocessor took 46.12ms. Allocated memory is still 198.2MB. Free memory was 141.0MB in the beginning and 138.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 06:21:01,351 INFO L158 Benchmark]: RCFGBuilder took 762.02ms. Allocated memory is still 198.2MB. Free memory was 138.9MB in the beginning and 94.4MB in the end (delta: 44.6MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. [2022-12-13 06:21:01,351 INFO L158 Benchmark]: TraceAbstraction took 8724.17ms. Allocated memory was 198.2MB in the beginning and 304.1MB in the end (delta: 105.9MB). Free memory was 92.8MB in the beginning and 147.1MB in the end (delta: -54.3MB). Peak memory consumption was 52.2MB. Max. memory is 8.0GB. [2022-12-13 06:21:01,353 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 198.2MB. Free memory was 174.5MB in the beginning and 174.3MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 570.12ms. Allocated memory is still 198.2MB. Free memory was 172.2MB in the beginning and 144.5MB in the end (delta: 27.7MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 79.42ms. Allocated memory is still 198.2MB. Free memory was 144.0MB in the beginning and 141.0MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.12ms. Allocated memory is still 198.2MB. Free memory was 141.0MB in the beginning and 138.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 762.02ms. Allocated memory is still 198.2MB. Free memory was 138.9MB in the beginning and 94.4MB in the end (delta: 44.6MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. * TraceAbstraction took 8724.17ms. Allocated memory was 198.2MB in the beginning and 304.1MB in the end (delta: 105.9MB). Free memory was 92.8MB in the beginning and 147.1MB in the end (delta: -54.3MB). Peak memory consumption was 52.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.2s, 94 PlacesBefore, 53 PlacesAfterwards, 89 TransitionsBefore, 47 TransitionsAfterwards, 1134 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 36 TrivialYvCompositions, 32 ConcurrentYvCompositions, 5 ChoiceCompositions, 74 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2144, independent: 2039, independent conditional: 2039, independent unconditional: 0, dependent: 105, dependent conditional: 105, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2144, independent: 2039, independent conditional: 0, independent unconditional: 2039, dependent: 105, dependent conditional: 0, dependent unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2144, independent: 2039, independent conditional: 0, independent unconditional: 2039, dependent: 105, dependent conditional: 0, dependent unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2144, independent: 2039, independent conditional: 0, independent unconditional: 2039, dependent: 105, dependent conditional: 0, dependent unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1122, independent: 1083, independent conditional: 0, independent unconditional: 1083, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1122, independent: 1057, independent conditional: 0, independent unconditional: 1057, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 65, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 328, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 297, dependent conditional: 0, dependent unconditional: 297, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2144, independent: 956, independent conditional: 0, independent unconditional: 956, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 1122, unknown conditional: 0, unknown unconditional: 1122] , Statistics on independence cache: Total cache size (in pairs): 2102, Positive cache size: 2063, Positive conditional cache size: 0, Positive unconditional cache size: 2063, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 53 PlacesBefore, 53 PlacesAfterwards, 71 TransitionsBefore, 71 TransitionsAfterwards, 434 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p1_EBX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L722] 0 _Bool y$flush_delayed; [L723] 0 int y$mem_tmp; [L724] 0 _Bool y$r_buff0_thd0; [L725] 0 _Bool y$r_buff0_thd1; [L726] 0 _Bool y$r_buff0_thd2; [L727] 0 _Bool y$r_buff1_thd0; [L728] 0 _Bool y$r_buff1_thd1; [L729] 0 _Bool y$r_buff1_thd2; [L730] 0 _Bool y$read_delayed; [L731] 0 int *y$read_delayed_var; [L732] 0 int y$w_buff0; [L733] 0 _Bool y$w_buff0_used; [L734] 0 int y$w_buff1; [L735] 0 _Bool y$w_buff1_used; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L834] 0 pthread_t t1665; [L835] FCALL, FORK 0 pthread_create(&t1665, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1665, ((void *)0), P0, ((void *)0))=-1, t1665={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L836] 0 pthread_t t1666; [L837] FCALL, FORK 0 pthread_create(&t1666, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1666, ((void *)0), P1, ((void *)0))=0, t1665={5:0}, t1666={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L771] 2 y$w_buff1 = y$w_buff0 [L772] 2 y$w_buff0 = 1 [L773] 2 y$w_buff1_used = y$w_buff0_used [L774] 2 y$w_buff0_used = (_Bool)1 [L775] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L775] RET 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L776] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L777] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L778] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L779] 2 y$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L782] 2 y$w_buff1 = y$w_buff0 [L783] 2 y$w_buff0 = 2 [L784] 2 y$w_buff1_used = y$w_buff0_used [L785] 2 y$w_buff0_used = (_Bool)1 [L786] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND TRUE 2 !expression [L19] 2 reach_error() VAL [\old(expression)=0, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, expression=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=1, y$w_buff1_used=1] - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 837]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 835]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 111 locations, 7 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: 8.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 0 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=278occurred in iteration=1, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 06:21:01,380 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...