./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe004_power.opt_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe004_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad7a565ad4ebe037ce541fa36cdf85746d072cc2b5132ab8ae2e3025ff70fea5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 06:44:07,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 06:44:07,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 06:44:07,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 06:44:07,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 06:44:07,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 06:44:07,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 06:44:07,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 06:44:07,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 06:44:07,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 06:44:07,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 06:44:07,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 06:44:07,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 06:44:07,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 06:44:07,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 06:44:07,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 06:44:07,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 06:44:07,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 06:44:07,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 06:44:07,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 06:44:07,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 06:44:07,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 06:44:07,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 06:44:07,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 06:44:07,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 06:44:07,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 06:44:07,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 06:44:07,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 06:44:07,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 06:44:07,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 06:44:07,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 06:44:07,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 06:44:07,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 06:44:07,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 06:44:07,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 06:44:07,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 06:44:07,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 06:44:07,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 06:44:07,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 06:44:07,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 06:44:07,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 06:44:07,280 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am/config/svcomp-Reach-32bit-GemCutter_Default.epf [2022-11-23 06:44:07,319 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 06:44:07,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 06:44:07,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 06:44:07,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 06:44:07,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 06:44:07,322 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 06:44:07,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 06:44:07,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 06:44:07,323 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 06:44:07,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 06:44:07,324 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 06:44:07,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 06:44:07,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 06:44:07,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 06:44:07,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 06:44:07,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 06:44:07,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 06:44:07,326 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 06:44:07,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 06:44:07,326 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 06:44:07,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 06:44:07,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 06:44:07,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 06:44:07,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 06:44:07,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 06:44:07,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 06:44:07,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 06:44:07,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 06:44:07,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 06:44:07,330 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-11-23 06:44:07,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 06:44:07,330 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-23 06:44:07,330 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-23 06:44:07,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 06:44:07,331 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-23 06:44:07,331 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-23 06:44:07,331 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad7a565ad4ebe037ce541fa36cdf85746d072cc2b5132ab8ae2e3025ff70fea5 [2022-11-23 06:44:07,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 06:44:07,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 06:44:07,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 06:44:07,660 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 06:44:07,660 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 06:44:07,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am/../../sv-benchmarks/c/pthread-wmm/safe004_power.opt_pso.opt_rmo.opt.i [2022-11-23 06:44:10,749 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 06:44:11,008 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 06:44:11,008 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/sv-benchmarks/c/pthread-wmm/safe004_power.opt_pso.opt_rmo.opt.i [2022-11-23 06:44:11,023 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am/data/ddaa5c82e/7b622233ac314f829f2e69a6e0b32eef/FLAG472c067f1 [2022-11-23 06:44:11,037 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am/data/ddaa5c82e/7b622233ac314f829f2e69a6e0b32eef [2022-11-23 06:44:11,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 06:44:11,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 06:44:11,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 06:44:11,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 06:44:11,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 06:44:11,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:44:11" (1/1) ... [2022-11-23 06:44:11,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4341deeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:11, skipping insertion in model container [2022-11-23 06:44:11,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:44:11" (1/1) ... [2022-11-23 06:44:11,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 06:44:11,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 06:44:11,293 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/sv-benchmarks/c/pthread-wmm/safe004_power.opt_pso.opt_rmo.opt.i[967,980] [2022-11-23 06:44:11,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 06:44:11,570 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 06:44:11,593 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/sv-benchmarks/c/pthread-wmm/safe004_power.opt_pso.opt_rmo.opt.i[967,980] [2022-11-23 06:44:11,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 06:44:11,725 INFO L208 MainTranslator]: Completed translation [2022-11-23 06:44:11,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:11 WrapperNode [2022-11-23 06:44:11,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 06:44:11,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 06:44:11,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 06:44:11,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 06:44:11,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:11" (1/1) ... [2022-11-23 06:44:11,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:11" (1/1) ... [2022-11-23 06:44:11,817 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 142 [2022-11-23 06:44:11,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 06:44:11,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 06:44:11,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 06:44:11,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 06:44:11,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:11" (1/1) ... [2022-11-23 06:44:11,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:11" (1/1) ... [2022-11-23 06:44:11,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:11" (1/1) ... [2022-11-23 06:44:11,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:11" (1/1) ... [2022-11-23 06:44:11,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:11" (1/1) ... [2022-11-23 06:44:11,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:11" (1/1) ... [2022-11-23 06:44:11,879 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:11" (1/1) ... [2022-11-23 06:44:11,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:11" (1/1) ... [2022-11-23 06:44:11,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 06:44:11,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 06:44:11,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 06:44:11,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 06:44:11,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:11" (1/1) ... [2022-11-23 06:44:11,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 06:44:11,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:44:11,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 06:44:11,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 06:44:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 06:44:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 06:44:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 06:44:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 06:44:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 06:44:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-23 06:44:11,967 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-23 06:44:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-23 06:44:11,967 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-23 06:44:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-23 06:44:11,968 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-23 06:44:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 06:44:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 06:44:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 06:44:11,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 06:44:11,970 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 06:44:12,160 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 06:44:12,162 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 06:44:12,565 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 06:44:12,704 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 06:44:12,704 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 06:44:12,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:44:12 BoogieIcfgContainer [2022-11-23 06:44:12,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 06:44:12,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 06:44:12,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 06:44:12,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 06:44:12,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:44:11" (1/3) ... [2022-11-23 06:44:12,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3af38059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:44:12, skipping insertion in model container [2022-11-23 06:44:12,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:11" (2/3) ... [2022-11-23 06:44:12,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3af38059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:44:12, skipping insertion in model container [2022-11-23 06:44:12,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:44:12" (3/3) ... [2022-11-23 06:44:12,720 INFO L112 eAbstractionObserver]: Analyzing ICFG safe004_power.opt_pso.opt_rmo.opt.i [2022-11-23 06:44:12,728 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 06:44:12,739 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 06:44:12,739 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 06:44:12,739 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 06:44:12,816 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 06:44:12,870 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 06:44:12,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-23 06:44:12,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:44:12,878 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-23 06:44:12,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-23 06:44:12,942 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-23 06:44:12,956 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-23 06:44:12,966 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@5bdde761, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 06:44:12,967 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-23 06:44:13,350 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-23 06:44:13,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:44:13,357 INFO L85 PathProgramCache]: Analyzing trace with hash 98853714, now seen corresponding path program 1 times [2022-11-23 06:44:13,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:44:13,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840649536] [2022-11-23 06:44:13,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:44:13,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:44:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:44:13,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:44:13,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:44:13,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840649536] [2022-11-23 06:44:13,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840649536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:44:13,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:44:13,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 06:44:13,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997004091] [2022-11-23 06:44:13,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:44:13,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 06:44:13,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:44:13,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 06:44:13,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 06:44:13,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:13,824 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:44:13,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 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) [2022-11-23 06:44:13,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:13,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:13,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 06:44:13,900 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-23 06:44:13,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:44:13,902 INFO L85 PathProgramCache]: Analyzing trace with hash 631072001, now seen corresponding path program 1 times [2022-11-23 06:44:13,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:44:13,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673687989] [2022-11-23 06:44:13,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:44:13,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:44:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:44:14,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:44:14,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:44:14,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673687989] [2022-11-23 06:44:14,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673687989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:44:14,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:44:14,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 06:44:14,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309728147] [2022-11-23 06:44:14,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:44:14,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 06:44:14,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:44:14,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 06:44:14,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 06:44:14,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:14,558 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:44:14,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2022-11-23 06:44:14,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:14,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:14,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:14,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:44:14,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 06:44:14,724 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-23 06:44:14,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:44:14,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1453226921, now seen corresponding path program 1 times [2022-11-23 06:44:14,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:44:14,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652497760] [2022-11-23 06:44:14,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:44:14,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:44:14,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:44:15,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:44:15,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:44:15,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652497760] [2022-11-23 06:44:15,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652497760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:44:15,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:44:15,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 06:44:15,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101811048] [2022-11-23 06:44:15,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:44:15,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 06:44:15,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:44:15,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 06:44:15,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-23 06:44:15,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:15,734 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:44:15,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 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) [2022-11-23 06:44:15,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:15,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:44:15,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:15,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:15,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:44:15,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 06:44:15,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 06:44:15,967 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-23 06:44:15,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:44:15,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1159926870, now seen corresponding path program 1 times [2022-11-23 06:44:15,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:44:15,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062120152] [2022-11-23 06:44:15,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:44:15,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:44:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:44:16,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:44:16,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:44:16,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062120152] [2022-11-23 06:44:16,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062120152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:44:16,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:44:16,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 06:44:16,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252714382] [2022-11-23 06:44:16,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:44:16,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 06:44:16,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:44:16,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 06:44:16,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-23 06:44:16,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:16,464 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:44:16,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 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) [2022-11-23 06:44:16,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:16,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:44:16,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-23 06:44:16,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:16,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:16,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:44:16,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 06:44:16,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 06:44:16,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 06:44:16,704 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-23 06:44:16,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:44:16,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1858606438, now seen corresponding path program 1 times [2022-11-23 06:44:16,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:44:16,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910362679] [2022-11-23 06:44:16,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:44:16,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:44:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:44:18,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:44:18,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:44:18,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910362679] [2022-11-23 06:44:18,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910362679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:44:18,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:44:18,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 06:44:18,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80621371] [2022-11-23 06:44:18,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:44:18,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 06:44:18,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:44:18,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 06:44:18,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-23 06:44:18,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:18,393 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:44:18,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 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) [2022-11-23 06:44:18,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:18,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:44:18,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-23 06:44:18,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-11-23 06:44:18,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:18,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:18,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:44:18,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 06:44:18,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 06:44:18,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:44:18,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 06:44:18,832 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-23 06:44:18,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:44:18,833 INFO L85 PathProgramCache]: Analyzing trace with hash 2099127894, now seen corresponding path program 2 times [2022-11-23 06:44:18,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:44:18,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770384926] [2022-11-23 06:44:18,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:44:18,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:44:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:44:21,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:44:21,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:44:21,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770384926] [2022-11-23 06:44:21,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770384926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:44:21,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:44:21,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 06:44:21,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637097068] [2022-11-23 06:44:21,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:44:21,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-23 06:44:21,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:44:21,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-23 06:44:21,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-11-23 06:44:21,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:21,075 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:44:21,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.133333333333334) internal successors, (92), 15 states have internal predecessors, (92), 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) [2022-11-23 06:44:21,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:21,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:44:21,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-23 06:44:21,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-11-23 06:44:21,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:44:21,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:22,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:44:22,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:44:22,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 06:44:22,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 06:44:22,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:44:22,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 06:44:22,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 06:44:22,064 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-23 06:44:22,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:44:22,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1588340438, now seen corresponding path program 3 times [2022-11-23 06:44:22,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:44:22,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893794066] [2022-11-23 06:44:22,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:44:22,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:44:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 06:44:22,167 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 06:44:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 06:44:22,279 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 06:44:22,284 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 06:44:22,285 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-11-23 06:44:22,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-23 06:44:22,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-11-23 06:44:22,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-11-23 06:44:22,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 06:44:22,296 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2022-11-23 06:44:22,302 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN (1/2) [2022-11-23 06:44:22,306 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 06:44:22,307 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 06:44:22,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:44:22 BasicIcfg [2022-11-23 06:44:22,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 06:44:22,465 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 06:44:22,465 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 06:44:22,466 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 06:44:22,466 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:44:12" (3/4) ... [2022-11-23 06:44:22,468 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 06:44:22,611 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am/witness.graphml [2022-11-23 06:44:22,612 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 06:44:22,612 INFO L158 Benchmark]: Toolchain (without parser) took 11571.04ms. Allocated memory was 201.3MB in the beginning and 352.3MB in the end (delta: 151.0MB). Free memory was 153.9MB in the beginning and 298.4MB in the end (delta: -144.5MB). Peak memory consumption was 197.2MB. Max. memory is 16.1GB. [2022-11-23 06:44:22,613 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory was 70.2MB in the beginning and 70.0MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 06:44:22,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 683.95ms. Allocated memory is still 201.3MB. Free memory was 153.9MB in the beginning and 130.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-23 06:44:22,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.83ms. Allocated memory is still 201.3MB. Free memory was 130.9MB in the beginning and 128.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 06:44:22,614 INFO L158 Benchmark]: Boogie Preprocessor took 64.93ms. Allocated memory is still 201.3MB. Free memory was 128.0MB in the beginning and 125.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 06:44:22,614 INFO L158 Benchmark]: RCFGBuilder took 821.89ms. Allocated memory is still 201.3MB. Free memory was 125.9MB in the beginning and 150.0MB in the end (delta: -24.1MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2022-11-23 06:44:22,614 INFO L158 Benchmark]: TraceAbstraction took 9756.45ms. Allocated memory was 201.3MB in the beginning and 352.3MB in the end (delta: 151.0MB). Free memory was 148.9MB in the beginning and 117.7MB in the end (delta: 31.2MB). Peak memory consumption was 183.2MB. Max. memory is 16.1GB. [2022-11-23 06:44:22,615 INFO L158 Benchmark]: Witness Printer took 146.53ms. Allocated memory is still 352.3MB. Free memory was 117.7MB in the beginning and 298.4MB in the end (delta: -180.7MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2022-11-23 06:44:22,617 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory was 70.2MB in the beginning and 70.0MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 683.95ms. Allocated memory is still 201.3MB. Free memory was 153.9MB in the beginning and 130.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.83ms. Allocated memory is still 201.3MB. Free memory was 130.9MB in the beginning and 128.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.93ms. Allocated memory is still 201.3MB. Free memory was 128.0MB in the beginning and 125.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 821.89ms. Allocated memory is still 201.3MB. Free memory was 125.9MB in the beginning and 150.0MB in the end (delta: -24.1MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9756.45ms. Allocated memory was 201.3MB in the beginning and 352.3MB in the end (delta: 151.0MB). Free memory was 148.9MB in the beginning and 117.7MB in the end (delta: 31.2MB). Peak memory consumption was 183.2MB. Max. memory is 16.1GB. * Witness Printer took 146.53ms. Allocated memory is still 352.3MB. Free memory was 117.7MB in the beginning and 298.4MB in the end (delta: -180.7MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6880, independent: 6673, independent conditional: 5241, independent unconditional: 1432, dependent: 207, dependent conditional: 168, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6815, independent: 6673, independent conditional: 5241, independent unconditional: 1432, dependent: 142, dependent conditional: 103, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6815, independent: 6673, independent conditional: 5241, independent unconditional: 1432, dependent: 142, dependent conditional: 103, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7464, independent: 6673, independent conditional: 202, independent unconditional: 6471, dependent: 791, dependent conditional: 447, dependent unconditional: 344, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7464, independent: 6673, independent conditional: 202, independent unconditional: 6471, dependent: 791, dependent conditional: 95, dependent unconditional: 696, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7464, independent: 6673, independent conditional: 202, independent unconditional: 6471, dependent: 791, dependent conditional: 95, dependent unconditional: 696, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1490, independent: 1446, independent conditional: 14, independent unconditional: 1432, dependent: 44, dependent conditional: 5, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1490, independent: 1424, independent conditional: 0, independent unconditional: 1424, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 66, independent: 22, independent conditional: 14, independent unconditional: 8, dependent: 44, dependent conditional: 5, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 66, independent: 22, independent conditional: 14, independent unconditional: 8, dependent: 44, dependent conditional: 5, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 576, independent: 161, independent conditional: 86, independent unconditional: 75, dependent: 415, dependent conditional: 19, dependent unconditional: 396, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 7464, independent: 5227, independent conditional: 188, independent unconditional: 5039, dependent: 747, dependent conditional: 90, dependent unconditional: 657, unknown: 1490, unknown conditional: 19, unknown unconditional: 1471] , Statistics on independence cache: Total cache size (in pairs): 1490, Positive cache size: 1446, Positive conditional cache size: 14, Positive unconditional cache size: 1432, Negative cache size: 44, Negative conditional cache size: 5, Negative unconditional cache size: 39, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 352, Maximal queried relation: 4, Independence queries for same thread: 65 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.7s, Number of persistent set computation: 1180, Number of trivial persistent sets: 514, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1471, independent: 1432, independent conditional: 0, independent unconditional: 1432, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6880, independent: 6673, independent conditional: 5241, independent unconditional: 1432, dependent: 207, dependent conditional: 168, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6815, independent: 6673, independent conditional: 5241, independent unconditional: 1432, dependent: 142, dependent conditional: 103, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6815, independent: 6673, independent conditional: 5241, independent unconditional: 1432, dependent: 142, dependent conditional: 103, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7464, independent: 6673, independent conditional: 202, independent unconditional: 6471, dependent: 791, dependent conditional: 447, dependent unconditional: 344, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7464, independent: 6673, independent conditional: 202, independent unconditional: 6471, dependent: 791, dependent conditional: 95, dependent unconditional: 696, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7464, independent: 6673, independent conditional: 202, independent unconditional: 6471, dependent: 791, dependent conditional: 95, dependent unconditional: 696, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1490, independent: 1446, independent conditional: 14, independent unconditional: 1432, dependent: 44, dependent conditional: 5, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1490, independent: 1424, independent conditional: 0, independent unconditional: 1424, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 66, independent: 22, independent conditional: 14, independent unconditional: 8, dependent: 44, dependent conditional: 5, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 66, independent: 22, independent conditional: 14, independent unconditional: 8, dependent: 44, dependent conditional: 5, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 576, independent: 161, independent conditional: 86, independent unconditional: 75, dependent: 415, dependent conditional: 19, dependent unconditional: 396, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 7464, independent: 5227, independent conditional: 188, independent unconditional: 5039, dependent: 747, dependent conditional: 90, dependent unconditional: 657, unknown: 1490, unknown conditional: 19, unknown unconditional: 1471] , Statistics on independence cache: Total cache size (in pairs): 1490, Positive cache size: 1446, Positive conditional cache size: 14, Positive unconditional cache size: 1432, Negative cache size: 44, Negative conditional cache size: 5, Negative unconditional cache size: 39, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 352, Maximal queried relation: 4, Independence queries for same thread: 65 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L711] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0] [L713] 0 int __unbuffered_p2_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0] [L714] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0] [L715] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L717] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L718] 0 _Bool x$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0] [L719] 0 int x$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0] [L720] 0 _Bool x$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0] [L721] 0 _Bool x$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0] [L722] 0 _Bool x$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0] [L723] 0 _Bool x$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0] [L724] 0 _Bool x$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0] [L725] 0 _Bool x$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0] [L726] 0 _Bool x$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0] [L727] 0 _Bool x$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0] [L728] 0 _Bool x$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0] [L729] 0 int *x$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}] [L730] 0 int x$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0] [L731] 0 _Bool x$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0] [L732] 0 int x$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0] [L733] 0 _Bool x$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0] [L735] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L736] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L737] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L818] 0 pthread_t t1876; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1876={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L819] FCALL, FORK 0 pthread_create(&t1876, ((void *)0), P0, ((void *)0)) VAL [#in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1876, ((void *)0), P0, ((void *)0))=-2, t1876={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L820] 0 pthread_t t1877; VAL [#in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1876={5:0}, t1877={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L821] FCALL, FORK 0 pthread_create(&t1877, ((void *)0), P1, ((void *)0)) VAL [#in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1877, ((void *)0), P1, ((void *)0))=-1, t1876={5:0}, t1877={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L761] 2 x$w_buff1 = x$w_buff0 [L762] 2 x$w_buff0 = 2 [L763] 2 x$w_buff1_used = x$w_buff0_used [L764] 2 x$w_buff0_used = (_Bool)1 [L765] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 2 !(!expression) [L765] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L766] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L767] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L768] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L769] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L770] 2 x$r_buff0_thd2 = (_Bool)1 VAL [#in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L773] 2 y = 1 VAL [#in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L822] 0 pthread_t t1878; VAL [#in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1876={5:0}, t1877={6:0}, t1878={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L823] FCALL, FORK 0 pthread_create(&t1878, ((void *)0), P2, ((void *)0)) VAL [#in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1878, ((void *)0), P2, ((void *)0))=0, t1876={5:0}, t1877={6:0}, t1878={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L790] 3 __unbuffered_p2_EAX = y VAL [#in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L793] 3 __unbuffered_p2_EBX = y VAL [#in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L796] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L797] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L798] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L799] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L800] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [#in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L803] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [#in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L805] 3 return 0; VAL [#in~arg={0:0}, #in~arg={0:0}, \result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L741] 1 y = 2 VAL [#in~arg={0:0}, #in~arg={0:0}, \result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L744] 1 x = 1 VAL [#in~arg={0:0}, #in~arg={0:0}, \result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L776] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L777] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L778] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L779] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L780] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [#in~arg={0:0}, #in~arg={0:0}, #in~arg={0:0}, \result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L783] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [#in~arg={0:0}, #in~arg={0:0}, #in~arg={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L785] 2 return 0; VAL [#in~arg={0:0}, #in~arg={0:0}, #in~arg={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L747] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L748] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L749] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L750] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L751] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 VAL [#in~arg={0:0}, #in~arg={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L754] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [#in~arg={0:0}, #in~arg={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L825] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [#in~arg={0:0}, #in~arg={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1876={5:0}, t1877={6:0}, t1878={3:0}, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L827] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) VAL [#in~arg={0:0}, #in~arg={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, cond=1, main$tmp_guard0=1, main$tmp_guard1=0, unknown-#in~cond-unknown=1, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L827] RET 0 assume_abort_if_not(main$tmp_guard0) [L829] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L830] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L831] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L832] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L833] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [#in~arg={0:0}, #in~arg={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1876={5:0}, t1877={6:0}, t1878={3:0}, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L836] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L837] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L838] 0 x$flush_delayed = weak$$choice2 [L839] 0 x$mem_tmp = x [L840] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L841] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L842] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L843] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L844] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L845] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L846] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L847] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 1) [L848] 0 x = x$flush_delayed ? x$mem_tmp : x [L849] 0 x$flush_delayed = (_Bool)0 VAL [#in~arg={0:0}, #in~arg={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1876={5:0}, t1877={6:0}, t1878={3:0}, weak$$choice0=49, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L851] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression VAL [#in~arg={0:0}, #in~arg={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, unknown-#in~expression-unknown=1, unknown-#in~expression-unknown=0, weak$$choice0=49, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L18] 0 reach_error() VAL [#in~arg={0:0}, #in~arg={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, unknown-#in~expression-unknown=0, unknown-#in~expression-unknown=1, weak$$choice0=49, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] - UnprovableResult [Line: 821]: 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: 819]: 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: 823]: 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 141 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 9.4s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 2.5s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 617 NumberOfCodeBlocks, 617 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 519 ConstructedInterpolants, 0 QuantifiedInterpolants, 2636 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-23 06:44:22,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-11-23 06:44:22,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83a0e9d5-5721-4607-9338-63c385d64b8f/bin/ugemcutter-1C6z4D84am/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE