/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 --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_REDUNDANT_FLOW -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix034_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 11:53:08,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 11:53:08,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 11:53:08,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 11:53:08,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 11:53:08,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 11:53:08,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 11:53:08,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 11:53:08,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 11:53:08,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 11:53:08,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 11:53:08,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 11:53:08,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 11:53:08,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 11:53:08,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 11:53:08,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 11:53:08,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 11:53:08,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 11:53:08,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 11:53:08,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 11:53:08,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 11:53:08,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 11:53:08,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 11:53:08,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 11:53:08,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 11:53:08,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 11:53:08,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 11:53:08,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 11:53:08,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 11:53:08,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 11:53:08,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 11:53:08,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 11:53:08,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 11:53:08,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 11:53:08,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 11:53:08,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 11:53:08,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 11:53:08,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 11:53:08,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 11:53:08,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 11:53:08,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 11:53:08,095 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 [2022-12-12 11:53:08,115 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 11:53:08,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 11:53:08,116 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 11:53:08,116 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 11:53:08,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 11:53:08,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 11:53:08,117 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 11:53:08,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 11:53:08,117 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 11:53:08,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 11:53:08,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 11:53:08,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 11:53:08,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 11:53:08,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 11:53:08,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 11:53:08,118 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 11:53:08,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 11:53:08,118 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 11:53:08,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 11:53:08,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 11:53:08,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 11:53:08,119 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 11:53:08,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 11:53:08,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 11:53:08,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 11:53:08,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 11:53:08,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 11:53:08,120 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 11:53:08,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 11:53:08,120 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 11:53:08,120 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 11:53:08,120 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_REDUNDANT_FLOW [2022-12-12 11:53:08,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 11:53:08,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 11:53:08,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 11:53:08,438 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 11:53:08,439 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 11:53:08,444 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix034_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i [2022-12-12 11:53:09,607 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 11:53:09,906 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 11:53:09,906 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix034_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i [2022-12-12 11:53:09,934 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f0456cca/8ec6a0ab6a6f4ecaa2e382be1119c3c7/FLAG0c0df2aab [2022-12-12 11:53:09,951 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f0456cca/8ec6a0ab6a6f4ecaa2e382be1119c3c7 [2022-12-12 11:53:09,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 11:53:09,955 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 11:53:09,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 11:53:09,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 11:53:09,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 11:53:09,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 11:53:09" (1/1) ... [2022-12-12 11:53:09,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7123315a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:53:09, skipping insertion in model container [2022-12-12 11:53:09,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 11:53:09" (1/1) ... [2022-12-12 11:53:09,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 11:53:10,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 11:53:10,178 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/mix034_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i[996,1009] [2022-12-12 11:53:10,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,331 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,331 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,333 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,333 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,334 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,339 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,339 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,339 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,341 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,341 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,342 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 11:53:10,355 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 11:53:10,369 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/mix034_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i[996,1009] [2022-12-12 11:53:10,405 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,406 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,406 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,406 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,406 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,421 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,432 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:53:10,448 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:53:10,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 11:53:10,482 INFO L208 MainTranslator]: Completed translation [2022-12-12 11:53:10,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:53:10 WrapperNode [2022-12-12 11:53:10,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 11:53:10,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 11:53:10,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 11:53:10,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 11:53:10,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:53:10" (1/1) ... [2022-12-12 11:53:10,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:53:10" (1/1) ... [2022-12-12 11:53:10,531 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 115 [2022-12-12 11:53:10,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 11:53:10,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 11:53:10,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 11:53:10,532 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 11:53:10,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:53:10" (1/1) ... [2022-12-12 11:53:10,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:53:10" (1/1) ... [2022-12-12 11:53:10,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:53:10" (1/1) ... [2022-12-12 11:53:10,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:53:10" (1/1) ... [2022-12-12 11:53:10,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:53:10" (1/1) ... [2022-12-12 11:53:10,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:53:10" (1/1) ... [2022-12-12 11:53:10,554 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:53:10" (1/1) ... [2022-12-12 11:53:10,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:53:10" (1/1) ... [2022-12-12 11:53:10,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 11:53:10,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 11:53:10,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 11:53:10,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 11:53:10,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:53:10" (1/1) ... [2022-12-12 11:53:10,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 11:53:10,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 11:53:10,605 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) [2022-12-12 11:53:10,623 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 [2022-12-12 11:53:10,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 11:53:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 11:53:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 11:53:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 11:53:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 11:53:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 11:53:10,647 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 11:53:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 11:53:10,647 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 11:53:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 11:53:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 11:53:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 11:53:10,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 11:53:10,650 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 11:53:10,787 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 11:53:10,789 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 11:53:11,185 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 11:53:11,323 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 11:53:11,323 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 11:53:11,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 11:53:11 BoogieIcfgContainer [2022-12-12 11:53:11,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 11:53:11,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 11:53:11,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 11:53:11,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 11:53:11,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 11:53:09" (1/3) ... [2022-12-12 11:53:11,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f6980d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 11:53:11, skipping insertion in model container [2022-12-12 11:53:11,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:53:10" (2/3) ... [2022-12-12 11:53:11,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f6980d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 11:53:11, skipping insertion in model container [2022-12-12 11:53:11,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 11:53:11" (3/3) ... [2022-12-12 11:53:11,335 INFO L112 eAbstractionObserver]: Analyzing ICFG mix034_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i [2022-12-12 11:53:11,350 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 11:53:11,350 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 11:53:11,351 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 11:53:11,398 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 11:53:11,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 92 transitions, 194 flow [2022-12-12 11:53:11,483 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2022-12-12 11:53:11,483 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 11:53:11,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2022-12-12 11:53:11,489 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 92 transitions, 194 flow [2022-12-12 11:53:11,493 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 90 transitions, 186 flow [2022-12-12 11:53:11,504 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 11:53:11,511 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;@230cc998, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 11:53:11,511 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-12 11:53:11,524 INFO L130 PetriNetUnfolder]: 0/41 cut-off events. [2022-12-12 11:53:11,524 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 11:53:11,524 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:53:11,525 INFO L214 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] [2022-12-12 11:53:11,526 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 11:53:11,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:53:11,530 INFO L85 PathProgramCache]: Analyzing trace with hash -632578282, now seen corresponding path program 1 times [2022-12-12 11:53:11,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:53:11,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589776366] [2022-12-12 11:53:11,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:53:11,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:53:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:53:11,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:53:11,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:53:11,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589776366] [2022-12-12 11:53:11,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589776366] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:53:11,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:53:11,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 11:53:11,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478272248] [2022-12-12 11:53:12,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:53:12,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 11:53:12,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:53:12,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 11:53:12,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 11:53:12,051 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 92 [2022-12-12 11:53:12,055 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 90 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2022-12-12 11:53:12,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:53:12,056 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 92 [2022-12-12 11:53:12,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:53:12,176 INFO L130 PetriNetUnfolder]: 18/145 cut-off events. [2022-12-12 11:53:12,176 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-12 11:53:12,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 145 events. 18/145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 375 event pairs, 2 based on Foata normal form. 12/148 useless extension candidates. Maximal degree in co-relation 150. Up to 31 conditions per place. [2022-12-12 11:53:12,184 INFO L137 encePairwiseOnDemand]: 87/92 looper letters, 10 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2022-12-12 11:53:12,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 90 transitions, 213 flow [2022-12-12 11:53:12,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 11:53:12,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 11:53:12,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2022-12-12 11:53:12,200 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9311594202898551 [2022-12-12 11:53:12,206 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 0 predicate places. [2022-12-12 11:53:12,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 90 transitions, 213 flow [2022-12-12 11:53:12,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 90 transitions, 208 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-12 11:53:12,211 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 90 transitions, 208 flow [2022-12-12 11:53:12,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2022-12-12 11:53:12,211 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:53:12,212 INFO L214 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] [2022-12-12 11:53:12,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 11:53:12,212 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 11:53:12,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:53:12,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1966491760, now seen corresponding path program 1 times [2022-12-12 11:53:12,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:53:12,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294898907] [2022-12-12 11:53:12,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:53:12,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:53:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:53:12,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:53:12,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:53:12,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294898907] [2022-12-12 11:53:12,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294898907] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:53:12,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:53:12,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 11:53:12,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105704573] [2022-12-12 11:53:12,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:53:12,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 11:53:12,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:53:12,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 11:53:12,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 11:53:12,636 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 92 [2022-12-12 11:53:12,637 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 90 transitions, 208 flow. Second operand has 7 states, 7 states have (on average 70.71428571428571) internal successors, (495), 7 states have internal predecessors, (495), 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) [2022-12-12 11:53:12,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:53:12,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 92 [2022-12-12 11:53:12,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:53:13,018 INFO L130 PetriNetUnfolder]: 246/768 cut-off events. [2022-12-12 11:53:13,018 INFO L131 PetriNetUnfolder]: For 149/248 co-relation queries the response was YES. [2022-12-12 11:53:13,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1438 conditions, 768 events. 246/768 cut-off events. For 149/248 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4610 event pairs, 50 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 1388. Up to 230 conditions per place. [2022-12-12 11:53:13,023 INFO L137 encePairwiseOnDemand]: 86/92 looper letters, 25 selfloop transitions, 2 changer transitions 50/137 dead transitions. [2022-12-12 11:53:13,024 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 137 transitions, 498 flow [2022-12-12 11:53:13,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-12 11:53:13,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-12 11:53:13,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 682 transitions. [2022-12-12 11:53:13,027 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8236714975845411 [2022-12-12 11:53:13,028 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 6 predicate places. [2022-12-12 11:53:13,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 137 transitions, 498 flow [2022-12-12 11:53:13,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 137 transitions, 490 flow, removed 4 selfloop flow, removed 0 redundant places. [2022-12-12 11:53:13,031 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 137 transitions, 490 flow [2022-12-12 11:53:13,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.71428571428571) internal successors, (495), 7 states have internal predecessors, (495), 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) [2022-12-12 11:53:13,032 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:53:13,032 INFO L214 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] [2022-12-12 11:53:13,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 11:53:13,032 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 11:53:13,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:53:13,033 INFO L85 PathProgramCache]: Analyzing trace with hash -466746898, now seen corresponding path program 1 times [2022-12-12 11:53:13,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:53:13,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843608125] [2022-12-12 11:53:13,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:53:13,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:53:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:53:13,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:53:13,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:53:13,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843608125] [2022-12-12 11:53:13,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843608125] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:53:13,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:53:13,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 11:53:13,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906591486] [2022-12-12 11:53:13,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:53:13,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 11:53:13,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:53:13,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 11:53:13,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-12 11:53:13,240 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 92 [2022-12-12 11:53:13,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 137 transitions, 490 flow. Second operand has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 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) [2022-12-12 11:53:13,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:53:13,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 92 [2022-12-12 11:53:13,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:53:13,510 INFO L130 PetriNetUnfolder]: 266/764 cut-off events. [2022-12-12 11:53:13,511 INFO L131 PetriNetUnfolder]: For 544/594 co-relation queries the response was YES. [2022-12-12 11:53:13,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1754 conditions, 764 events. 266/764 cut-off events. For 544/594 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4265 event pairs, 36 based on Foata normal form. 2/733 useless extension candidates. Maximal degree in co-relation 1704. Up to 253 conditions per place. [2022-12-12 11:53:13,516 INFO L137 encePairwiseOnDemand]: 83/92 looper letters, 43 selfloop transitions, 8 changer transitions 51/172 dead transitions. [2022-12-12 11:53:13,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 172 transitions, 802 flow [2022-12-12 11:53:13,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 11:53:13,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 11:53:13,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 781 transitions. [2022-12-12 11:53:13,519 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8489130434782609 [2022-12-12 11:53:13,519 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 15 predicate places. [2022-12-12 11:53:13,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 172 transitions, 802 flow [2022-12-12 11:53:13,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 172 transitions, 786 flow, removed 7 selfloop flow, removed 1 redundant places. [2022-12-12 11:53:13,524 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 172 transitions, 786 flow [2022-12-12 11:53:13,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 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) [2022-12-12 11:53:13,524 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:53:13,524 INFO L214 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] [2022-12-12 11:53:13,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 11:53:13,525 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 11:53:13,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:53:13,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1487381546, now seen corresponding path program 1 times [2022-12-12 11:53:13,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:53:13,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225629256] [2022-12-12 11:53:13,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:53:13,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:53:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:53:13,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:53:13,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:53:13,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225629256] [2022-12-12 11:53:13,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225629256] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:53:13,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:53:13,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 11:53:13,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350502117] [2022-12-12 11:53:13,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:53:13,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 11:53:13,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:53:13,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 11:53:13,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 11:53:13,801 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 92 [2022-12-12 11:53:13,801 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 172 transitions, 786 flow. Second operand has 7 states, 7 states have (on average 72.85714285714286) internal successors, (510), 7 states have internal predecessors, (510), 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) [2022-12-12 11:53:13,801 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:53:13,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 92 [2022-12-12 11:53:13,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:53:14,059 INFO L130 PetriNetUnfolder]: 209/557 cut-off events. [2022-12-12 11:53:14,059 INFO L131 PetriNetUnfolder]: For 562/728 co-relation queries the response was YES. [2022-12-12 11:53:14,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1704 conditions, 557 events. 209/557 cut-off events. For 562/728 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2927 event pairs, 12 based on Foata normal form. 45/582 useless extension candidates. Maximal degree in co-relation 1652. Up to 169 conditions per place. [2022-12-12 11:53:14,063 INFO L137 encePairwiseOnDemand]: 83/92 looper letters, 39 selfloop transitions, 11 changer transitions 65/177 dead transitions. [2022-12-12 11:53:14,063 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 177 transitions, 1032 flow [2022-12-12 11:53:14,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 11:53:14,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 11:53:14,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 987 transitions. [2022-12-12 11:53:14,066 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8252508361204013 [2022-12-12 11:53:14,067 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 20 predicate places. [2022-12-12 11:53:14,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 177 transitions, 1032 flow [2022-12-12 11:53:14,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 177 transitions, 931 flow, removed 44 selfloop flow, removed 4 redundant places. [2022-12-12 11:53:14,072 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 177 transitions, 931 flow [2022-12-12 11:53:14,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 72.85714285714286) internal successors, (510), 7 states have internal predecessors, (510), 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) [2022-12-12 11:53:14,073 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:53:14,073 INFO L214 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, 1] [2022-12-12 11:53:14,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 11:53:14,073 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 11:53:14,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:53:14,074 INFO L85 PathProgramCache]: Analyzing trace with hash -898492603, now seen corresponding path program 1 times [2022-12-12 11:53:14,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:53:14,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977748711] [2022-12-12 11:53:14,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:53:14,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:53:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:53:14,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:53:14,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:53:14,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977748711] [2022-12-12 11:53:14,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977748711] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:53:14,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:53:14,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-12 11:53:14,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187883395] [2022-12-12 11:53:14,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:53:14,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 11:53:14,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:53:14,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 11:53:14,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-12 11:53:14,697 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 92 [2022-12-12 11:53:14,702 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 177 transitions, 931 flow. Second operand has 9 states, 9 states have (on average 69.22222222222223) internal successors, (623), 9 states have internal predecessors, (623), 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) [2022-12-12 11:53:14,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:53:14,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 92 [2022-12-12 11:53:14,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:53:14,956 INFO L130 PetriNetUnfolder]: 254/717 cut-off events. [2022-12-12 11:53:14,956 INFO L131 PetriNetUnfolder]: For 957/1019 co-relation queries the response was YES. [2022-12-12 11:53:14,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2096 conditions, 717 events. 254/717 cut-off events. For 957/1019 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 4233 event pairs, 14 based on Foata normal form. 6/705 useless extension candidates. Maximal degree in co-relation 2037. Up to 180 conditions per place. [2022-12-12 11:53:14,960 INFO L137 encePairwiseOnDemand]: 83/92 looper letters, 21 selfloop transitions, 11 changer transitions 102/200 dead transitions. [2022-12-12 11:53:14,960 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 200 transitions, 1283 flow [2022-12-12 11:53:14,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 11:53:14,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 11:53:14,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 705 transitions. [2022-12-12 11:53:14,962 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7663043478260869 [2022-12-12 11:53:14,964 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 25 predicate places. [2022-12-12 11:53:14,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 200 transitions, 1283 flow [2022-12-12 11:53:14,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 200 transitions, 1128 flow, removed 70 selfloop flow, removed 2 redundant places. [2022-12-12 11:53:14,970 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 200 transitions, 1128 flow [2022-12-12 11:53:14,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 69.22222222222223) internal successors, (623), 9 states have internal predecessors, (623), 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) [2022-12-12 11:53:14,970 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:53:14,971 INFO L214 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, 1] [2022-12-12 11:53:14,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 11:53:14,971 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 11:53:14,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:53:14,972 INFO L85 PathProgramCache]: Analyzing trace with hash 711458663, now seen corresponding path program 2 times [2022-12-12 11:53:14,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:53:14,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724263235] [2022-12-12 11:53:14,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:53:14,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:53:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 11:53:15,022 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-12 11:53:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 11:53:15,109 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-12 11:53:15,110 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-12 11:53:15,111 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-12 11:53:15,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-12 11:53:15,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-12 11:53:15,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-12 11:53:15,113 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-12 11:53:15,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 11:53:15,113 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2022-12-12 11:53:15,118 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 11:53:15,118 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 11:53:15,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 11:53:15 BasicIcfg [2022-12-12 11:53:15,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 11:53:15,203 INFO L158 Benchmark]: Toolchain (without parser) took 5248.37ms. Allocated memory was 206.6MB in the beginning and 248.5MB in the end (delta: 41.9MB). Free memory was 181.0MB in the beginning and 131.2MB in the end (delta: 49.8MB). Peak memory consumption was 93.3MB. Max. memory is 8.0GB. [2022-12-12 11:53:15,204 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 206.6MB. Free memory was 183.3MB in the beginning and 183.2MB in the end (delta: 63.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 11:53:15,204 INFO L158 Benchmark]: CACSL2BoogieTranslator took 526.15ms. Allocated memory is still 206.6MB. Free memory was 180.5MB in the beginning and 155.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2022-12-12 11:53:15,204 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.80ms. Allocated memory is still 206.6MB. Free memory was 155.3MB in the beginning and 153.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 11:53:15,204 INFO L158 Benchmark]: Boogie Preprocessor took 26.22ms. Allocated memory is still 206.6MB. Free memory was 153.2MB in the beginning and 151.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 11:53:15,205 INFO L158 Benchmark]: RCFGBuilder took 767.76ms. Allocated memory is still 206.6MB. Free memory was 151.1MB in the beginning and 120.2MB in the end (delta: 30.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2022-12-12 11:53:15,205 INFO L158 Benchmark]: TraceAbstraction took 3873.59ms. Allocated memory was 206.6MB in the beginning and 248.5MB in the end (delta: 41.9MB). Free memory was 119.1MB in the beginning and 131.2MB in the end (delta: -12.0MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2022-12-12 11:53:15,207 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 206.6MB. Free memory was 183.3MB in the beginning and 183.2MB in the end (delta: 63.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 526.15ms. Allocated memory is still 206.6MB. Free memory was 180.5MB in the beginning and 155.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.80ms. Allocated memory is still 206.6MB. Free memory was 155.3MB in the beginning and 153.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.22ms. Allocated memory is still 206.6MB. Free memory was 153.2MB in the beginning and 151.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 767.76ms. Allocated memory is still 206.6MB. Free memory was 151.1MB in the beginning and 120.2MB in the end (delta: 30.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * TraceAbstraction took 3873.59ms. Allocated memory was 206.6MB in the beginning and 248.5MB in the end (delta: 41.9MB). Free memory was 119.1MB in the beginning and 131.2MB in the end (delta: -12.0MB). Peak memory consumption was 31.5MB. 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_p0_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0] [L712] 0 int __unbuffered_p1_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0] [L714] 0 int __unbuffered_p1_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0] [L715] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0] [L716] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L718] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L720] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L722] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0] [L723] 0 _Bool z$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0] [L724] 0 int z$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0] [L725] 0 _Bool z$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0] [L726] 0 _Bool z$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0] [L727] 0 _Bool z$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0] [L728] 0 _Bool z$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff1_thd0=0] [L729] 0 _Bool z$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0] [L730] 0 _Bool z$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0] [L731] 0 _Bool z$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0] [L732] 0 int *z$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}] [L733] 0 int z$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0] [L734] 0 _Bool z$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0] [L735] 0 int z$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0] [L736] 0 _Bool z$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L737] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L738] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L817] 0 pthread_t t897; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t897={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L818] FCALL, FORK 0 pthread_create(&t897, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t897, ((void *)0), P0, ((void *)0))=-1, t897={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L819] 0 pthread_t t898; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t897={5:0}, t898={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L820] FCALL, FORK 0 pthread_create(&t898, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t898, ((void *)0), P1, ((void *)0))=0, t897={5:0}, t898={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L742] 1 z$w_buff1 = z$w_buff0 [L743] 1 z$w_buff0 = 1 [L744] 1 z$w_buff1_used = z$w_buff0_used [L745] 1 z$w_buff0_used = (_Bool)1 [L746] CALL 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L746] RET 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L747] 1 z$r_buff1_thd0 = z$r_buff0_thd0 [L748] 1 z$r_buff1_thd1 = z$r_buff0_thd1 [L749] 1 z$r_buff1_thd2 = z$r_buff0_thd2 [L750] 1 z$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L753] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L770] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L773] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L776] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L779] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L780] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L781] 2 z$flush_delayed = weak$$choice2 [L782] 2 z$mem_tmp = z [L783] 2 z = !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff1) [L784] 2 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L785] 2 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L786] 2 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L787] 2 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L788] 2 z$r_buff0_thd2 = weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L789] 2 z$r_buff1_thd2 = weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L790] 2 __unbuffered_p1_EBX = z [L791] 2 z = z$flush_delayed ? z$mem_tmp : z [L792] 2 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=66, weak$$choice2=255, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L795] 2 z = z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L796] 2 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L797] 2 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L798] 2 z$r_buff0_thd2 = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L799] 2 z$r_buff1_thd2 = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=66, weak$$choice2=255, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L756] 1 z = z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L757] 1 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L758] 1 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L759] 1 z$r_buff0_thd1 = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L760] 1 z$r_buff1_thd1 = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=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$$choice0=66, weak$$choice2=255, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L763] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=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$$choice0=66, weak$$choice2=255, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L802] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=66, weak$$choice2=255, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L822] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t897={5:0}, t898={3:0}, weak$$choice0=66, weak$$choice2=255, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L824] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) VAL [\old(cond)=1, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, cond=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=66, weak$$choice2=255, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L824] RET 0 assume_abort_if_not(main$tmp_guard0) [L826] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L827] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L828] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L829] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L830] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t897={5:0}, t898={3:0}, weak$$choice0=66, weak$$choice2=255, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L833] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t897={5:0}, t898={3:0}, weak$$choice0=66, weak$$choice2=255, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L835] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression VAL [\old(expression)=1, \old(expression)=0, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=66, weak$$choice2=255, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __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$$choice0=66, weak$$choice2=255, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - 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: 818]: 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: 820]: 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, 112 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: 3.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 248 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 248 mSDsluCounter, 160 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 127 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 422 IncrementalHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 33 mSDtfsCounter, 422 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1128occurred in iteration=5, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 285 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 381 NumberOfCodeBlocks, 381 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 303 ConstructedInterpolants, 0 QuantifiedInterpolants, 1456 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-12 11:53:15,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...