/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi001_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 18:38:40,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:38:40,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:38:40,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:38:40,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:38:40,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:38:40,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:38:40,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:38:40,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:38:40,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:38:40,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:38:40,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:38:40,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:38:40,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:38:40,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:38:40,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:38:40,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:38:40,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:38:40,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:38:40,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:38:40,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:38:40,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:38:40,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:38:40,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:38:40,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 18:38:40,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 18:38:40,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 18:38:40,946 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 18:38:40,946 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 18:38:40,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 18:38:40,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 18:38:40,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 18:38:40,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 18:38:40,953 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 18:38:40,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 18:38:40,954 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 18:38:40,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 18:38:40,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 18:38:40,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:38:40,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:38:40,955 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:38:40,956 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-NoLbe.epf [2022-12-05 18:38:40,977 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:38:40,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:38:40,979 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:38:40,979 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:38:40,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:38:40,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:38:40,980 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:38:40,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:38:40,980 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:38:40,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:38:40,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:38:40,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:38:40,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:38:40,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:38:40,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:38:40,981 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:38:40,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:38:40,981 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:38:40,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:38:40,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:38:40,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:38:40,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:38:40,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:38:40,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:38:40,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:38:40,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:38:40,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:38:40,982 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:38:40,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:38:40,983 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:38:40,983 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:38:40,983 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:38:41,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:38:41,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:38:41,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:38:41,255 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:38:41,255 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:38:41,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi001_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-12-05 18:38:42,195 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:38:42,439 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:38:42,440 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi001_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-12-05 18:38:42,464 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34b958603/af6d8a4746cd4e649807c776ede1dc04/FLAG31352aace [2022-12-05 18:38:42,771 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34b958603/af6d8a4746cd4e649807c776ede1dc04 [2022-12-05 18:38:42,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:38:42,773 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:38:42,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:38:42,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:38:42,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:38:42,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:38:42" (1/1) ... [2022-12-05 18:38:42,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67b4d2a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:42, skipping insertion in model container [2022-12-05 18:38:42,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:38:42" (1/1) ... [2022-12-05 18:38:42,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:38:42,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:38:42,972 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/rfi001_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2022-12-05 18:38:43,108 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,115 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,115 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,115 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,116 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,118 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,119 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,119 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,119 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,119 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,119 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,119 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,120 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,125 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,125 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,126 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,136 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,136 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,137 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:38:43,168 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:38:43,177 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/rfi001_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2022-12-05 18:38:43,203 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,204 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,204 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,205 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,207 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,214 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,214 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,214 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,217 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,217 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,217 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,219 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,219 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:38:43,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:38:43,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:38:43,257 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:38:43,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:43 WrapperNode [2022-12-05 18:38:43,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:38:43,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:38:43,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:38:43,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:38:43,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:43" (1/1) ... [2022-12-05 18:38:43,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:43" (1/1) ... [2022-12-05 18:38:43,311 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 135 [2022-12-05 18:38:43,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:38:43,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:38:43,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:38:43,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:38:43,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:43" (1/1) ... [2022-12-05 18:38:43,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:43" (1/1) ... [2022-12-05 18:38:43,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:43" (1/1) ... [2022-12-05 18:38:43,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:43" (1/1) ... [2022-12-05 18:38:43,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:43" (1/1) ... [2022-12-05 18:38:43,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:43" (1/1) ... [2022-12-05 18:38:43,340 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:43" (1/1) ... [2022-12-05 18:38:43,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:43" (1/1) ... [2022-12-05 18:38:43,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:38:43,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:38:43,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:38:43,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:38:43,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:43" (1/1) ... [2022-12-05 18:38:43,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:38:43,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:38:43,396 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) [2022-12-05 18:38:43,402 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 [2022-12-05 18:38:43,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:38:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 18:38:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:38:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:38:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:38:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-05 18:38:43,421 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-05 18:38:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-05 18:38:43,421 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-05 18:38:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:38:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 18:38:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:38:43,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:38:43,422 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 18:38:43,505 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:38:43,507 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:38:43,705 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:38:43,887 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:38:43,887 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 18:38:43,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:38:43 BoogieIcfgContainer [2022-12-05 18:38:43,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:38:43,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:38:43,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:38:43,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:38:43,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:38:42" (1/3) ... [2022-12-05 18:38:43,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba895c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:38:43, skipping insertion in model container [2022-12-05 18:38:43,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:38:43" (2/3) ... [2022-12-05 18:38:43,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba895c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:38:43, skipping insertion in model container [2022-12-05 18:38:43,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:38:43" (3/3) ... [2022-12-05 18:38:43,894 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi001_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-12-05 18:38:43,917 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:38:43,918 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-05 18:38:43,918 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:38:43,988 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 18:38:44,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 91 transitions, 192 flow [2022-12-05 18:38:44,080 INFO L130 PetriNetUnfolder]: 2/89 cut-off events. [2022-12-05 18:38:44,080 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:38:44,100 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 49 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2022-12-05 18:38:44,101 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 91 transitions, 192 flow [2022-12-05 18:38:44,105 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 89 transitions, 184 flow [2022-12-05 18:38:44,120 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:38:44,133 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=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;@47b6b6f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:38:44,133 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-05 18:38:44,143 INFO L130 PetriNetUnfolder]: 0/54 cut-off events. [2022-12-05 18:38:44,143 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:38:44,143 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:38:44,144 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:38:44,144 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:38:44,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:38:44,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1629231510, now seen corresponding path program 1 times [2022-12-05 18:38:44,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:38:44,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936820770] [2022-12-05 18:38:44,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:38:44,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:38:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:38:44,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:38:44,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:38:44,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936820770] [2022-12-05 18:38:44,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936820770] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:38:44,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:38:44,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 18:38:44,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622050912] [2022-12-05 18:38:44,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:38:44,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 18:38:44,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:38:44,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 18:38:44,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 18:38:44,643 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 91 [2022-12-05 18:38:44,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 89 transitions, 184 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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) [2022-12-05 18:38:44,647 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:38:44,647 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 91 [2022-12-05 18:38:44,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:38:44,740 INFO L130 PetriNetUnfolder]: 17/164 cut-off events. [2022-12-05 18:38:44,740 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 18:38:44,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 164 events. 17/164 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 467 event pairs, 3 based on Foata normal form. 9/166 useless extension candidates. Maximal degree in co-relation 166. Up to 27 conditions per place. [2022-12-05 18:38:44,742 INFO L137 encePairwiseOnDemand]: 86/91 looper letters, 9 selfloop transitions, 2 changer transitions 0/88 dead transitions. [2022-12-05 18:38:44,742 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 88 transitions, 204 flow [2022-12-05 18:38:44,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 18:38:44,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 18:38:44,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2022-12-05 18:38:44,758 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9267399267399268 [2022-12-05 18:38:44,759 INFO L175 Difference]: Start difference. First operand has 94 places, 89 transitions, 184 flow. Second operand 3 states and 253 transitions. [2022-12-05 18:38:44,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 88 transitions, 204 flow [2022-12-05 18:38:44,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 88 transitions, 202 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 18:38:44,765 INFO L231 Difference]: Finished difference. Result has 92 places, 85 transitions, 178 flow [2022-12-05 18:38:44,766 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=92, PETRI_TRANSITIONS=85} [2022-12-05 18:38:44,770 INFO L294 CegarLoopForPetriNet]: 94 programPoint places, -2 predicate places. [2022-12-05 18:38:44,770 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 85 transitions, 178 flow [2022-12-05 18:38:44,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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) [2022-12-05 18:38:44,771 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:38:44,771 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:38:44,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:38:44,771 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:38:44,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:38:44,773 INFO L85 PathProgramCache]: Analyzing trace with hash 420117524, now seen corresponding path program 1 times [2022-12-05 18:38:44,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:38:44,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724330771] [2022-12-05 18:38:44,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:38:44,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:38:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:38:45,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:38:45,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:38:45,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724330771] [2022-12-05 18:38:45,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724330771] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:38:45,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:38:45,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:38:45,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593652464] [2022-12-05 18:38:45,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:38:45,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:38:45,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:38:45,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:38:45,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:38:45,547 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 91 [2022-12-05 18:38:45,548 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 85 transitions, 178 flow. Second operand has 7 states, 7 states have (on average 64.57142857142857) internal successors, (452), 7 states have internal predecessors, (452), 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) [2022-12-05 18:38:45,548 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:38:45,548 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 91 [2022-12-05 18:38:45,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:38:45,809 INFO L130 PetriNetUnfolder]: 205/615 cut-off events. [2022-12-05 18:38:45,809 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-12-05 18:38:45,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1025 conditions, 615 events. 205/615 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3372 event pairs, 47 based on Foata normal form. 0/593 useless extension candidates. Maximal degree in co-relation 970. Up to 166 conditions per place. [2022-12-05 18:38:45,816 INFO L137 encePairwiseOnDemand]: 85/91 looper letters, 25 selfloop transitions, 2 changer transitions 41/121 dead transitions. [2022-12-05 18:38:45,816 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 121 transitions, 378 flow [2022-12-05 18:38:45,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 18:38:45,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 18:38:45,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 621 transitions. [2022-12-05 18:38:45,822 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7582417582417582 [2022-12-05 18:38:45,822 INFO L175 Difference]: Start difference. First operand has 92 places, 85 transitions, 178 flow. Second operand 9 states and 621 transitions. [2022-12-05 18:38:45,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 121 transitions, 378 flow [2022-12-05 18:38:45,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 121 transitions, 368 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 18:38:45,825 INFO L231 Difference]: Finished difference. Result has 105 places, 77 transitions, 178 flow [2022-12-05 18:38:45,825 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=178, PETRI_PLACES=105, PETRI_TRANSITIONS=77} [2022-12-05 18:38:45,826 INFO L294 CegarLoopForPetriNet]: 94 programPoint places, 11 predicate places. [2022-12-05 18:38:45,826 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 77 transitions, 178 flow [2022-12-05 18:38:45,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.57142857142857) internal successors, (452), 7 states have internal predecessors, (452), 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) [2022-12-05 18:38:45,826 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:38:45,826 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:38:45,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:38:45,827 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:38:45,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:38:45,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1638187831, now seen corresponding path program 1 times [2022-12-05 18:38:45,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:38:45,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314488529] [2022-12-05 18:38:45,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:38:45,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:38:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:38:46,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:38:46,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:38:46,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314488529] [2022-12-05 18:38:46,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314488529] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:38:46,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:38:46,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-05 18:38:46,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809307454] [2022-12-05 18:38:46,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:38:46,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-05 18:38:46,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:38:46,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-05 18:38:46,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-05 18:38:46,825 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 91 [2022-12-05 18:38:46,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 77 transitions, 178 flow. Second operand has 12 states, 12 states have (on average 63.666666666666664) internal successors, (764), 12 states have internal predecessors, (764), 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) [2022-12-05 18:38:46,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:38:46,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 91 [2022-12-05 18:38:46,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:38:47,382 INFO L130 PetriNetUnfolder]: 130/363 cut-off events. [2022-12-05 18:38:47,382 INFO L131 PetriNetUnfolder]: For 83/83 co-relation queries the response was YES. [2022-12-05 18:38:47,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 363 events. 130/363 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1510 event pairs, 22 based on Foata normal form. 10/362 useless extension candidates. Maximal degree in co-relation 682. Up to 134 conditions per place. [2022-12-05 18:38:47,384 INFO L137 encePairwiseOnDemand]: 73/91 looper letters, 24 selfloop transitions, 16 changer transitions 41/134 dead transitions. [2022-12-05 18:38:47,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 134 transitions, 492 flow [2022-12-05 18:38:47,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-05 18:38:47,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-05 18:38:47,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1324 transitions. [2022-12-05 18:38:47,387 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7274725274725274 [2022-12-05 18:38:47,387 INFO L175 Difference]: Start difference. First operand has 105 places, 77 transitions, 178 flow. Second operand 20 states and 1324 transitions. [2022-12-05 18:38:47,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 134 transitions, 492 flow [2022-12-05 18:38:47,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 134 transitions, 448 flow, removed 18 selfloop flow, removed 8 redundant places. [2022-12-05 18:38:47,392 INFO L231 Difference]: Finished difference. Result has 114 places, 86 transitions, 274 flow [2022-12-05 18:38:47,392 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=274, PETRI_PLACES=114, PETRI_TRANSITIONS=86} [2022-12-05 18:38:47,393 INFO L294 CegarLoopForPetriNet]: 94 programPoint places, 20 predicate places. [2022-12-05 18:38:47,393 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 86 transitions, 274 flow [2022-12-05 18:38:47,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 63.666666666666664) internal successors, (764), 12 states have internal predecessors, (764), 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) [2022-12-05 18:38:47,393 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:38:47,394 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:38:47,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:38:47,394 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:38:47,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:38:47,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1288329306, now seen corresponding path program 1 times [2022-12-05 18:38:47,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:38:47,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763214647] [2022-12-05 18:38:47,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:38:47,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:38:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:38:47,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:38:47,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:38:47,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763214647] [2022-12-05 18:38:47,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763214647] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:38:47,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:38:47,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:38:47,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170235254] [2022-12-05 18:38:47,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:38:47,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:38:47,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:38:47,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:38:47,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:38:47,591 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 91 [2022-12-05 18:38:47,592 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 86 transitions, 274 flow. Second operand has 6 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 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) [2022-12-05 18:38:47,592 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:38:47,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 91 [2022-12-05 18:38:47,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:38:47,775 INFO L130 PetriNetUnfolder]: 198/547 cut-off events. [2022-12-05 18:38:47,775 INFO L131 PetriNetUnfolder]: For 593/613 co-relation queries the response was YES. [2022-12-05 18:38:47,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1394 conditions, 547 events. 198/547 cut-off events. For 593/613 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2788 event pairs, 19 based on Foata normal form. 8/531 useless extension candidates. Maximal degree in co-relation 1332. Up to 104 conditions per place. [2022-12-05 18:38:47,778 INFO L137 encePairwiseOnDemand]: 82/91 looper letters, 27 selfloop transitions, 6 changer transitions 41/138 dead transitions. [2022-12-05 18:38:47,778 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 138 transitions, 635 flow [2022-12-05 18:38:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 18:38:47,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 18:38:47,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 764 transitions. [2022-12-05 18:38:47,780 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8395604395604396 [2022-12-05 18:38:47,780 INFO L175 Difference]: Start difference. First operand has 114 places, 86 transitions, 274 flow. Second operand 10 states and 764 transitions. [2022-12-05 18:38:47,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 138 transitions, 635 flow [2022-12-05 18:38:47,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 138 transitions, 602 flow, removed 7 selfloop flow, removed 13 redundant places. [2022-12-05 18:38:47,787 INFO L231 Difference]: Finished difference. Result has 107 places, 88 transitions, 290 flow [2022-12-05 18:38:47,788 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=290, PETRI_PLACES=107, PETRI_TRANSITIONS=88} [2022-12-05 18:38:47,789 INFO L294 CegarLoopForPetriNet]: 94 programPoint places, 13 predicate places. [2022-12-05 18:38:47,789 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 88 transitions, 290 flow [2022-12-05 18:38:47,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 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) [2022-12-05 18:38:47,789 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:38:47,789 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:38:47,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 18:38:47,790 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:38:47,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:38:47,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1744436315, now seen corresponding path program 1 times [2022-12-05 18:38:47,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:38:47,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095490350] [2022-12-05 18:38:47,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:38:47,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:38:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:38:47,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:38:47,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:38:47,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095490350] [2022-12-05 18:38:47,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095490350] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:38:47,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:38:47,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:38:47,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275007505] [2022-12-05 18:38:47,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:38:47,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:38:47,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:38:47,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:38:47,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:38:47,963 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 91 [2022-12-05 18:38:47,964 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 88 transitions, 290 flow. Second operand has 7 states, 7 states have (on average 72.0) internal successors, (504), 7 states have internal predecessors, (504), 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) [2022-12-05 18:38:47,964 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:38:47,964 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 91 [2022-12-05 18:38:47,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:38:48,098 INFO L130 PetriNetUnfolder]: 61/256 cut-off events. [2022-12-05 18:38:48,098 INFO L131 PetriNetUnfolder]: For 308/310 co-relation queries the response was YES. [2022-12-05 18:38:48,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 256 events. 61/256 cut-off events. For 308/310 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 945 event pairs, 12 based on Foata normal form. 9/261 useless extension candidates. Maximal degree in co-relation 684. Up to 45 conditions per place. [2022-12-05 18:38:48,100 INFO L137 encePairwiseOnDemand]: 82/91 looper letters, 23 selfloop transitions, 9 changer transitions 15/111 dead transitions. [2022-12-05 18:38:48,100 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 111 transitions, 515 flow [2022-12-05 18:38:48,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-05 18:38:48,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-05 18:38:48,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 815 transitions. [2022-12-05 18:38:48,102 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8141858141858141 [2022-12-05 18:38:48,102 INFO L175 Difference]: Start difference. First operand has 107 places, 88 transitions, 290 flow. Second operand 11 states and 815 transitions. [2022-12-05 18:38:48,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 111 transitions, 515 flow [2022-12-05 18:38:48,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 111 transitions, 472 flow, removed 16 selfloop flow, removed 5 redundant places. [2022-12-05 18:38:48,108 INFO L231 Difference]: Finished difference. Result has 115 places, 91 transitions, 323 flow [2022-12-05 18:38:48,108 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=323, PETRI_PLACES=115, PETRI_TRANSITIONS=91} [2022-12-05 18:38:48,110 INFO L294 CegarLoopForPetriNet]: 94 programPoint places, 21 predicate places. [2022-12-05 18:38:48,110 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 91 transitions, 323 flow [2022-12-05 18:38:48,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 72.0) internal successors, (504), 7 states have internal predecessors, (504), 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) [2022-12-05 18:38:48,111 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:38:48,111 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:38:48,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 18:38:48,112 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:38:48,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:38:48,112 INFO L85 PathProgramCache]: Analyzing trace with hash -918764622, now seen corresponding path program 1 times [2022-12-05 18:38:48,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:38:48,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142700816] [2022-12-05 18:38:48,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:38:48,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:38:48,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:38:48,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:38:48,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:38:48,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142700816] [2022-12-05 18:38:48,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142700816] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:38:48,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:38:48,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-05 18:38:48,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545789598] [2022-12-05 18:38:48,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:38:48,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 18:38:48,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:38:48,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 18:38:48,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-05 18:38:48,454 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 91 [2022-12-05 18:38:48,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 91 transitions, 323 flow. Second operand has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 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) [2022-12-05 18:38:48,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:38:48,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 91 [2022-12-05 18:38:48,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:38:48,605 INFO L130 PetriNetUnfolder]: 30/268 cut-off events. [2022-12-05 18:38:48,605 INFO L131 PetriNetUnfolder]: For 355/365 co-relation queries the response was YES. [2022-12-05 18:38:48,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 712 conditions, 268 events. 30/268 cut-off events. For 355/365 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1250 event pairs, 0 based on Foata normal form. 1/257 useless extension candidates. Maximal degree in co-relation 660. Up to 43 conditions per place. [2022-12-05 18:38:48,607 INFO L137 encePairwiseOnDemand]: 82/91 looper letters, 21 selfloop transitions, 1 changer transitions 26/114 dead transitions. [2022-12-05 18:38:48,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 114 transitions, 534 flow [2022-12-05 18:38:48,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 18:38:48,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 18:38:48,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 646 transitions. [2022-12-05 18:38:48,609 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7887667887667887 [2022-12-05 18:38:48,609 INFO L175 Difference]: Start difference. First operand has 115 places, 91 transitions, 323 flow. Second operand 9 states and 646 transitions. [2022-12-05 18:38:48,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 114 transitions, 534 flow [2022-12-05 18:38:48,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 114 transitions, 465 flow, removed 31 selfloop flow, removed 10 redundant places. [2022-12-05 18:38:48,612 INFO L231 Difference]: Finished difference. Result has 117 places, 87 transitions, 295 flow [2022-12-05 18:38:48,612 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=295, PETRI_PLACES=117, PETRI_TRANSITIONS=87} [2022-12-05 18:38:48,613 INFO L294 CegarLoopForPetriNet]: 94 programPoint places, 23 predicate places. [2022-12-05 18:38:48,613 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 87 transitions, 295 flow [2022-12-05 18:38:48,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 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) [2022-12-05 18:38:48,613 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:38:48,614 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:38:48,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 18:38:48,614 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:38:48,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:38:48,614 INFO L85 PathProgramCache]: Analyzing trace with hash 20532776, now seen corresponding path program 2 times [2022-12-05 18:38:48,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:38:48,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224844898] [2022-12-05 18:38:48,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:38:48,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:38:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 18:38:48,638 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-05 18:38:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 18:38:48,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-05 18:38:48,679 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-05 18:38:48,680 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-05 18:38:48,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-05 18:38:48,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-05 18:38:48,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-05 18:38:48,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-05 18:38:48,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 18:38:48,684 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-12-05 18:38:48,688 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 18:38:48,688 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 18:38:48,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 06:38:48 BasicIcfg [2022-12-05 18:38:48,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 18:38:48,766 INFO L158 Benchmark]: Toolchain (without parser) took 5992.36ms. Allocated memory was 223.3MB in the beginning and 491.8MB in the end (delta: 268.4MB). Free memory was 197.4MB in the beginning and 272.5MB in the end (delta: -75.0MB). Peak memory consumption was 194.9MB. Max. memory is 8.0GB. [2022-12-05 18:38:48,767 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 223.3MB. Free memory was 199.7MB in the beginning and 199.6MB in the end (delta: 91.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 18:38:48,770 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.70ms. Allocated memory is still 223.3MB. Free memory was 197.0MB in the beginning and 171.8MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2022-12-05 18:38:48,772 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.92ms. Allocated memory is still 223.3MB. Free memory was 171.8MB in the beginning and 169.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 18:38:48,772 INFO L158 Benchmark]: Boogie Preprocessor took 43.82ms. Allocated memory is still 223.3MB. Free memory was 169.2MB in the beginning and 167.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 18:38:48,772 INFO L158 Benchmark]: RCFGBuilder took 532.22ms. Allocated memory is still 223.3MB. Free memory was 167.6MB in the beginning and 136.7MB in the end (delta: 30.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2022-12-05 18:38:48,773 INFO L158 Benchmark]: TraceAbstraction took 4875.10ms. Allocated memory was 223.3MB in the beginning and 491.8MB in the end (delta: 268.4MB). Free memory was 135.7MB in the beginning and 272.5MB in the end (delta: -136.8MB). Peak memory consumption was 133.1MB. Max. memory is 8.0GB. [2022-12-05 18:38:48,774 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 223.3MB. Free memory was 199.7MB in the beginning and 199.6MB in the end (delta: 91.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 474.70ms. Allocated memory is still 223.3MB. Free memory was 197.0MB in the beginning and 171.8MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.92ms. Allocated memory is still 223.3MB. Free memory was 171.8MB in the beginning and 169.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.82ms. Allocated memory is still 223.3MB. Free memory was 169.2MB in the beginning and 167.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 532.22ms. Allocated memory is still 223.3MB. Free memory was 167.6MB in the beginning and 136.7MB in the end (delta: 30.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * TraceAbstraction took 4875.10ms. Allocated memory was 223.3MB in the beginning and 491.8MB in the end (delta: 268.4MB). Free memory was 135.7MB in the beginning and 272.5MB in the end (delta: -136.8MB). Peak memory consumption was 133.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L710] 0 int __unbuffered_p1_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0] [L712] 0 int __unbuffered_p1_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0] [L713] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0] [L714] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L716] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L718] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L719] 0 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L720] 0 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L721] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L722] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L723] 0 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L724] 0 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=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] [L725] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$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] [L726] 0 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$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$r_buff1_thd2=0] [L727] 0 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=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$read_delayed=0] [L728] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=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}] [L729] 0 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$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] [L730] 0 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$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$w_buff0_used=0] [L731] 0 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=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$w_buff1=0] [L732] 0 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=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] [L734] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=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, z=0] [L735] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=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, z=0] [L736] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L802] 0 pthread_t t1603; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1603={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L803] FCALL, FORK 0 pthread_create(&t1603, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1603, ((void *)0), P0, ((void *)0))=-1, t1603={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L804] 0 pthread_t t1604; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1603={5:0}, t1604={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L805] FCALL, FORK 0 pthread_create(&t1604, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1604, ((void *)0), P1, ((void *)0))=0, t1603={5:0}, t1604={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L760] 2 y$w_buff1 = y$w_buff0 [L761] 2 y$w_buff0 = 2 [L762] 2 y$w_buff1_used = y$w_buff0_used [L763] 2 y$w_buff0_used = (_Bool)1 [L764] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 2 !(!expression) [L764] RET 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L765] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L766] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L767] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L768] 2 y$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L771] 2 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L774] 2 __unbuffered_p1_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L777] 2 __unbuffered_p1_EBX = x VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L740] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L743] 1 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L746] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L747] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L748] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L749] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L750] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L780] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L781] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L782] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L783] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L784] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L753] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L787] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L807] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1603={5:0}, t1604={3:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L809] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) VAL [\old(cond)=1, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, cond=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L809] RET 0 assume_abort_if_not(main$tmp_guard0) [L811] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L812] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L813] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L814] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L815] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1603={5:0}, t1604={3:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L818] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L819] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L820] 0 y$flush_delayed = weak$$choice2 [L821] 0 y$mem_tmp = y [L822] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L823] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L824] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L825] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L826] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L827] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L828] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L829] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L830] 0 y = y$flush_delayed ? y$mem_tmp : y [L831] 0 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1603={5:0}, t1604={3:0}, weak$$choice0=53, weak$$choice2=255, x=1, y=2, y$flush_delayed=0, y$mem_tmp=2, 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=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L833] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression VAL [\old(expression)=0, \old(expression)=1, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=53, weak$$choice2=255, x=1, y=2, y$flush_delayed=0, y$mem_tmp=2, 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=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=53, weak$$choice2=255, x=1, y=2, y$flush_delayed=0, y$mem_tmp=2, 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=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - UnprovableResult [Line: 18]: 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: 805]: 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: 803]: 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, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 271 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 271 mSDsluCounter, 313 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 250 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 564 IncrementalHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 63 mSDtfsCounter, 564 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=323occurred in iteration=5, InterpolantAutomatonStates: 62, 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, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 448 NumberOfCodeBlocks, 448 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 370 ConstructedInterpolants, 0 QuantifiedInterpolants, 1714 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2022-12-05 18:38:48,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...