./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi005.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi005.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0 --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 0f51f8e84e29dbf7268818c0bd5364f23c52e80cf2778700bc9afe3da3c44b42 --- 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-dbf71c6-m [2022-10-17 16:10:36,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:10:36,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:10:36,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:10:36,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:10:36,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:10:36,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:10:36,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:10:36,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:10:36,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:10:36,317 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:10:36,318 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:10:36,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:10:36,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:10:36,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:10:36,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:10:36,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:10:36,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:10:36,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:10:36,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:10:36,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:10:36,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:10:36,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:10:36,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:10:36,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:10:36,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:10:36,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:10:36,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:10:36,352 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:10:36,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:10:36,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:10:36,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:10:36,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:10:36,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:10:36,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:10:36,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:10:36,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:10:36,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:10:36,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:10:36,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:10:36,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:10:36,366 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/config/svcomp-Reach-32bit-GemCutter_Default.epf [2022-10-17 16:10:36,399 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:10:36,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:10:36,399 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 16:10:36,400 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 16:10:36,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:10:36,401 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 16:10:36,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:10:36,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:10:36,402 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 16:10:36,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:10:36,403 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:10:36,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:10:36,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:10:36,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:10:36,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:10:36,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:10:36,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:10:36,404 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:10:36,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:10:36,405 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:10:36,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:10:36,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:10:36,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 16:10:36,406 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-17 16:10:36,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 16:10:36,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 16:10:36,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:10:36,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:10:36,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:10:36,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 16:10:36,408 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-10-17 16:10:36,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:10:36,408 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 16:10:36,408 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-17 16:10:36,409 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:10:36,409 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-10-17 16:10:36,409 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-10-17 16:10:36,409 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_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f51f8e84e29dbf7268818c0bd5364f23c52e80cf2778700bc9afe3da3c44b42 [2022-10-17 16:10:36,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:10:36,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:10:36,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:10:36,757 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:10:36,758 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:10:36,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/../../sv-benchmarks/c/pthread-wmm/rfi005.i [2022-10-17 16:10:36,844 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/data/b4f5cee5d/7f6b7d275cd947389e1dd1162b0bc68a/FLAG558e47052 [2022-10-17 16:10:37,464 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:10:37,465 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/sv-benchmarks/c/pthread-wmm/rfi005.i [2022-10-17 16:10:37,490 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/data/b4f5cee5d/7f6b7d275cd947389e1dd1162b0bc68a/FLAG558e47052 [2022-10-17 16:10:37,680 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/data/b4f5cee5d/7f6b7d275cd947389e1dd1162b0bc68a [2022-10-17 16:10:37,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:10:37,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:10:37,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:10:37,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:10:37,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:10:37,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:10:37" (1/1) ... [2022-10-17 16:10:37,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@652b2fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:37, skipping insertion in model container [2022-10-17 16:10:37,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:10:37" (1/1) ... [2022-10-17 16:10:37,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:10:37,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:10:38,151 WARN L230 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_149ba541-8aee-45af-88a5-2aca70f63769/sv-benchmarks/c/pthread-wmm/rfi005.i[983,996] [2022-10-17 16:10:38,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:10:38,561 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:10:38,577 WARN L230 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_149ba541-8aee-45af-88a5-2aca70f63769/sv-benchmarks/c/pthread-wmm/rfi005.i[983,996] [2022-10-17 16:10:38,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:10:38,708 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:10:38,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:38 WrapperNode [2022-10-17 16:10:38,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:10:38,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:10:38,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:10:38,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:10:38,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:38" (1/1) ... [2022-10-17 16:10:38,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:38" (1/1) ... [2022-10-17 16:10:38,841 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 380 [2022-10-17 16:10:38,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:10:38,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:10:38,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:10:38,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:10:38,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:38" (1/1) ... [2022-10-17 16:10:38,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:38" (1/1) ... [2022-10-17 16:10:38,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:38" (1/1) ... [2022-10-17 16:10:38,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:38" (1/1) ... [2022-10-17 16:10:38,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:38" (1/1) ... [2022-10-17 16:10:38,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:38" (1/1) ... [2022-10-17 16:10:38,916 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:38" (1/1) ... [2022-10-17 16:10:38,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:38" (1/1) ... [2022-10-17 16:10:38,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:10:38,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:10:38,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:10:38,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:10:38,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:38" (1/1) ... [2022-10-17 16:10:38,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 16:10:38,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/z3 [2022-10-17 16:10:39,012 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 16:10:39,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 16:10:39,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:10:39,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-10-17 16:10:39,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:10:39,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 16:10:39,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:10:39,084 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-10-17 16:10:39,084 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-10-17 16:10:39,085 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-10-17 16:10:39,085 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-10-17 16:10:39,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:10:39,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-10-17 16:10:39,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:10:39,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:10:39,088 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 16:10:39,351 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:10:39,353 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:10:40,536 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:10:41,474 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:10:41,474 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:10:41,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:10:41 BoogieIcfgContainer [2022-10-17 16:10:41,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:10:41,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 16:10:41,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 16:10:41,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 16:10:41,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 04:10:37" (1/3) ... [2022-10-17 16:10:41,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c4e12e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 04:10:41, skipping insertion in model container [2022-10-17 16:10:41,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:38" (2/3) ... [2022-10-17 16:10:41,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c4e12e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 04:10:41, skipping insertion in model container [2022-10-17 16:10:41,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:10:41" (3/3) ... [2022-10-17 16:10:41,499 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi005.i [2022-10-17 16:10:41,512 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 16:10:41,526 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 16:10:41,526 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-10-17 16:10:41,526 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 16:10:41,651 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-17 16:10:41,737 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 16:10:41,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-17 16:10:41,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/z3 [2022-10-17 16:10:41,743 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-17 16:10:41,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-10-17 16:10:41,809 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-17 16:10:41,832 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-10-17 16:10:41,850 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;@797f5c5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 16:10:41,850 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-10-17 16:10:42,397 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-10-17 16:10:42,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:10:42,408 INFO L85 PathProgramCache]: Analyzing trace with hash -90364381, now seen corresponding path program 1 times [2022-10-17 16:10:42,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 16:10:42,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143002786] [2022-10-17 16:10:42,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:42,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:10:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:42,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:10:42,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 16:10:42,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143002786] [2022-10-17 16:10:42,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143002786] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 16:10:42,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 16:10:42,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 16:10:42,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606658972] [2022-10-17 16:10:42,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 16:10:42,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 16:10:42,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 16:10:42,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 16:10:42,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 16:10:42,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:42,899 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-17 16:10:42,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 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) [2022-10-17 16:10:42,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:42,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:42,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 16:10:42,978 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-10-17 16:10:42,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:10:42,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1289925270, now seen corresponding path program 1 times [2022-10-17 16:10:42,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 16:10:42,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088598137] [2022-10-17 16:10:42,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:42,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:10:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:43,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:10:43,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 16:10:43,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088598137] [2022-10-17 16:10:43,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088598137] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 16:10:43,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 16:10:43,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 16:10:43,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623823368] [2022-10-17 16:10:43,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 16:10:43,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 16:10:43,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 16:10:43,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 16:10:43,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 16:10:43,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:43,797 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-17 16:10:43,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2022-10-17 16:10:43,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:43,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:43,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:43,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:43,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 16:10:43,943 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-10-17 16:10:43,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:10:43,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1722016306, now seen corresponding path program 1 times [2022-10-17 16:10:43,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 16:10:43,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513584351] [2022-10-17 16:10:43,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:43,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:10:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:44,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:10:44,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 16:10:44,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513584351] [2022-10-17 16:10:44,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513584351] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 16:10:44,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 16:10:44,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 16:10:44,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895192117] [2022-10-17 16:10:44,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 16:10:44,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 16:10:44,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 16:10:44,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 16:10:44,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 16:10:44,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:44,598 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-17 16:10:44,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2022-10-17 16:10:44,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:44,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:44,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:45,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:45,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:45,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 16:10:45,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 16:10:45,499 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-10-17 16:10:45,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:10:45,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1452169166, now seen corresponding path program 1 times [2022-10-17 16:10:45,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 16:10:45,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604258967] [2022-10-17 16:10:45,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:45,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:10:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:46,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:10:46,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 16:10:46,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604258967] [2022-10-17 16:10:46,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604258967] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 16:10:46,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 16:10:46,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 16:10:46,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612514527] [2022-10-17 16:10:46,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 16:10:46,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 16:10:46,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 16:10:46,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 16:10:46,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-17 16:10:46,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:46,232 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-17 16:10:46,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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) [2022-10-17 16:10:46,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:46,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:46,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-17 16:10:46,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:46,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:46,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:46,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 16:10:46,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 16:10:46,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 16:10:46,562 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-10-17 16:10:46,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:10:46,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1029719564, now seen corresponding path program 1 times [2022-10-17 16:10:46,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 16:10:46,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126157706] [2022-10-17 16:10:46,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:46,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:10:46,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:50,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:10:50,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 16:10:50,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126157706] [2022-10-17 16:10:50,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126157706] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 16:10:50,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 16:10:50,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-17 16:10:50,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673062046] [2022-10-17 16:10:50,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 16:10:50,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-17 16:10:50,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 16:10:50,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-17 16:10:50,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-10-17 16:10:50,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:50,202 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-17 16:10:50,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 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) [2022-10-17 16:10:50,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:50,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:50,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-17 16:10:50,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-17 16:10:50,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:50,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:50,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:50,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 16:10:50,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 16:10:50,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 16:10:50,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-10-17 16:10:50,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-10-17 16:10:50,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-10-17 16:10:50,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 16:10:50,986 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-10-17 16:10:50,988 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE (1/2) [2022-10-17 16:10:50,994 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 16:10:50,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-17 16:10:50,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/z3 [2022-10-17 16:10:50,997 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-17 16:10:51,043 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-17 16:10:51,044 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P1Thread1of1ForFork1 ======== [2022-10-17 16:10:51,045 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;@797f5c5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 16:10:51,045 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-17 16:10:51,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-10-17 16:10:51,165 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 16:10:51,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:10:51,166 INFO L85 PathProgramCache]: Analyzing trace with hash 239588003, now seen corresponding path program 1 times [2022-10-17 16:10:51,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 16:10:51,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761596777] [2022-10-17 16:10:51,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:51,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:10:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:51,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:10:51,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 16:10:51,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761596777] [2022-10-17 16:10:51,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761596777] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 16:10:51,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 16:10:51,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 16:10:51,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859507573] [2022-10-17 16:10:51,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 16:10:51,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 16:10:51,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 16:10:51,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 16:10:51,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 16:10:51,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:51,330 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-17 16:10:51,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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) [2022-10-17 16:10:51,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:51,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:51,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 16:10:51,386 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 16:10:51,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:10:51,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1162705017, now seen corresponding path program 1 times [2022-10-17 16:10:51,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 16:10:51,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700004426] [2022-10-17 16:10:51,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:51,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:10:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:10:51,407 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:10:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:10:51,463 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 16:10:51,464 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 16:10:51,464 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location P1Err1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-10-17 16:10:51,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-10-17 16:10:51,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 16:10:51,467 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-10-17 16:10:51,467 INFO L307 ceAbstractionStarter]: Result for error location P1Thread1of1ForFork1 was UNSAFE,UNKNOWN (2/2) [2022-10-17 16:10:51,471 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-10-17 16:10:51,471 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 16:10:51,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 04:10:51 BasicIcfg [2022-10-17 16:10:51,573 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 16:10:51,574 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:10:51,574 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:10:51,574 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:10:51,575 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:10:41" (3/4) ... [2022-10-17 16:10:51,577 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:10:51,724 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/witness.graphml [2022-10-17 16:10:51,725 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:10:51,726 INFO L158 Benchmark]: Toolchain (without parser) took 14038.90ms. Allocated memory was 92.3MB in the beginning and 245.4MB in the end (delta: 153.1MB). Free memory was 56.6MB in the beginning and 108.2MB in the end (delta: -51.6MB). Peak memory consumption was 100.2MB. Max. memory is 16.1GB. [2022-10-17 16:10:51,726 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory was 63.3MB in the beginning and 63.3MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:10:51,727 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1018.88ms. Allocated memory was 92.3MB in the beginning and 130.0MB in the end (delta: 37.7MB). Free memory was 56.3MB in the beginning and 90.1MB in the end (delta: -33.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:10:51,728 INFO L158 Benchmark]: Boogie Procedure Inliner took 131.00ms. Allocated memory is still 130.0MB. Free memory was 89.6MB in the beginning and 86.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 16:10:51,728 INFO L158 Benchmark]: Boogie Preprocessor took 86.17ms. Allocated memory is still 130.0MB. Free memory was 86.5MB in the beginning and 83.3MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:10:51,728 INFO L158 Benchmark]: RCFGBuilder took 2536.46ms. Allocated memory is still 130.0MB. Free memory was 83.3MB in the beginning and 67.9MB in the end (delta: 15.3MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. [2022-10-17 16:10:51,729 INFO L158 Benchmark]: TraceAbstraction took 10089.63ms. Allocated memory was 130.0MB in the beginning and 245.4MB in the end (delta: 115.3MB). Free memory was 67.9MB in the beginning and 121.8MB in the end (delta: -53.9MB). Peak memory consumption was 61.4MB. Max. memory is 16.1GB. [2022-10-17 16:10:51,729 INFO L158 Benchmark]: Witness Printer took 150.54ms. Allocated memory is still 245.4MB. Free memory was 121.8MB in the beginning and 108.2MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 16:10:51,733 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory was 63.3MB in the beginning and 63.3MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1018.88ms. Allocated memory was 92.3MB in the beginning and 130.0MB in the end (delta: 37.7MB). Free memory was 56.3MB in the beginning and 90.1MB in the end (delta: -33.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 131.00ms. Allocated memory is still 130.0MB. Free memory was 89.6MB in the beginning and 86.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.17ms. Allocated memory is still 130.0MB. Free memory was 86.5MB in the beginning and 83.3MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2536.46ms. Allocated memory is still 130.0MB. Free memory was 83.3MB in the beginning and 67.9MB in the end (delta: 15.3MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. * TraceAbstraction took 10089.63ms. Allocated memory was 130.0MB in the beginning and 245.4MB in the end (delta: 115.3MB). Free memory was 67.9MB in the beginning and 121.8MB in the end (delta: -53.9MB). Peak memory consumption was 61.4MB. Max. memory is 16.1GB. * Witness Printer took 150.54ms. Allocated memory is still 245.4MB. Free memory was 121.8MB in the beginning and 108.2MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1466, positive: 1399, positive conditional: 638, positive unconditional: 761, negative: 67, negative conditional: 45, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1434, positive: 1399, positive conditional: 638, positive unconditional: 761, negative: 35, negative conditional: 13, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1434, positive: 1399, positive conditional: 638, positive unconditional: 761, negative: 35, negative conditional: 13, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1524, positive: 1399, positive conditional: 32, positive unconditional: 1367, negative: 125, negative conditional: 58, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1524, positive: 1399, positive conditional: 32, positive unconditional: 1367, negative: 125, negative conditional: 20, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1524, positive: 1399, positive conditional: 32, positive unconditional: 1367, negative: 125, negative conditional: 20, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 793, positive: 765, positive conditional: 4, positive unconditional: 761, negative: 28, negative conditional: 4, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 793, positive: 758, positive conditional: 0, positive unconditional: 758, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, positive: 7, positive conditional: 4, positive unconditional: 3, negative: 28, negative conditional: 4, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1408, positive: 210, positive conditional: 149, positive unconditional: 61, negative: 1198, negative conditional: 192, negative unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1524, positive: 634, positive conditional: 28, positive unconditional: 606, negative: 97, negative conditional: 16, negative unconditional: 81, unknown: 793, unknown conditional: 8, unknown unconditional: 785] , Statistics on independence cache: Total cache size (in pairs): 793, Positive cache size: 765, Positive conditional cache size: 4, Positive unconditional cache size: 761, Negative cache size: 28, Negative conditional cache size: 4, Negative unconditional cache size: 24, Eliminated conditions: 38, Maximal queried relation: 4, Independence queries for same thread: 32 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 1.1s, Number of persistent set computation: 251, Number of trivial persistent sets: 123, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 783, positive: 761, positive conditional: 0, positive unconditional: 761, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1466, positive: 1399, positive conditional: 638, positive unconditional: 761, negative: 67, negative conditional: 45, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1434, positive: 1399, positive conditional: 638, positive unconditional: 761, negative: 35, negative conditional: 13, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1434, positive: 1399, positive conditional: 638, positive unconditional: 761, negative: 35, negative conditional: 13, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1524, positive: 1399, positive conditional: 32, positive unconditional: 1367, negative: 125, negative conditional: 58, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1524, positive: 1399, positive conditional: 32, positive unconditional: 1367, negative: 125, negative conditional: 20, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1524, positive: 1399, positive conditional: 32, positive unconditional: 1367, negative: 125, negative conditional: 20, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 793, positive: 765, positive conditional: 4, positive unconditional: 761, negative: 28, negative conditional: 4, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 793, positive: 758, positive conditional: 0, positive unconditional: 758, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, positive: 7, positive conditional: 4, positive unconditional: 3, negative: 28, negative conditional: 4, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1408, positive: 210, positive conditional: 149, positive unconditional: 61, negative: 1198, negative conditional: 192, negative unconditional: 1006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1524, positive: 634, positive conditional: 28, positive unconditional: 606, negative: 97, negative conditional: 16, negative unconditional: 81, unknown: 793, unknown conditional: 8, unknown unconditional: 785] , Statistics on independence cache: Total cache size (in pairs): 793, Positive cache size: 765, Positive conditional cache size: 4, Positive unconditional cache size: 761, Negative cache size: 28, Negative conditional cache size: 4, Negative unconditional cache size: 24, Eliminated conditions: 38, Maximal queried relation: 4, Independence queries for same thread: 32 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 326, positive: 319, positive conditional: 35, positive unconditional: 284, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 324, positive: 319, positive conditional: 35, positive unconditional: 284, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 324, positive: 319, positive conditional: 35, positive unconditional: 284, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 324, positive: 319, positive conditional: 0, positive unconditional: 319, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 324, positive: 319, positive conditional: 0, positive unconditional: 319, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 324, positive: 319, positive conditional: 0, positive unconditional: 319, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 289, positive: 284, positive conditional: 0, positive unconditional: 284, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 289, positive: 283, positive conditional: 0, positive unconditional: 283, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 153, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 107, negative conditional: 0, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 324, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 289, unknown conditional: 0, unknown unconditional: 289] , Statistics on independence cache: Total cache size (in pairs): 289, Positive cache size: 284, Positive conditional cache size: 0, Positive unconditional cache size: 284, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 2 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 51, Number of trivial persistent sets: 43, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 289, positive: 284, positive conditional: 0, positive unconditional: 284, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 326, positive: 319, positive conditional: 35, positive unconditional: 284, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 324, positive: 319, positive conditional: 35, positive unconditional: 284, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 324, positive: 319, positive conditional: 35, positive unconditional: 284, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 324, positive: 319, positive conditional: 0, positive unconditional: 319, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 324, positive: 319, positive conditional: 0, positive unconditional: 319, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 324, positive: 319, positive conditional: 0, positive unconditional: 319, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 289, positive: 284, positive conditional: 0, positive unconditional: 284, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 289, positive: 283, positive conditional: 0, positive unconditional: 283, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 153, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 107, negative conditional: 0, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 324, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 289, unknown conditional: 0, unknown unconditional: 289] , Statistics on independence cache: Total cache size (in pairs): 289, Positive cache size: 284, Positive conditional cache size: 0, Positive unconditional cache size: 284, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 2 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L711] 0 int __unbuffered_p0_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0] [L713] 0 int __unbuffered_p1_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0] [L715] 0 int __unbuffered_p1_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0] [L716] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0] [L717] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L719] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L721] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L722] 0 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L723] 0 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L724] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L725] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L726] 0 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L727] 0 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0] [L728] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L729] 0 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L730] 0 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0] [L731] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L732] 0 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L733] 0 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L734] 0 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L735] 0 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L736] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L737] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L834] 0 pthread_t t1665; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1665={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L835] FCALL, FORK 0 pthread_create(&t1665, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1665, ((void *)0), P0, ((void *)0))=-1, t1665={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L836] 0 pthread_t t1666; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1665={5:0}, t1666={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L837] FCALL, FORK 0 pthread_create(&t1666, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1666, ((void *)0), P1, ((void *)0))=0, t1665={5:0}, t1666={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L771] 2 y$w_buff1 = y$w_buff0 [L772] 2 y$w_buff0 = 1 [L773] 2 y$w_buff1_used = y$w_buff0_used [L774] 2 y$w_buff0_used = (_Bool)1 [L775] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L775] RET 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L776] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L777] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L778] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L779] 2 y$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L782] 2 y$w_buff1 = y$w_buff0 [L783] 2 y$w_buff0 = 2 [L784] 2 y$w_buff1_used = y$w_buff0_used [L785] 2 y$w_buff0_used = (_Bool)1 [L786] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND TRUE 2 !expression [L19] 2 reach_error() VAL [\old(expression)=0, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, expression=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=1, y$w_buff1_used=1] - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 118 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 9.2s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 2.8s, 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: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 355 NumberOfCodeBlocks, 355 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 350 ConstructedInterpolants, 0 QuantifiedInterpolants, 1219 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: P1Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 118 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, 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: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 93 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:10:51,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Forceful destruction successful, exit code 0 [2022-10-17 16:10:52,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-10-17 16:10:52,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_149ba541-8aee-45af-88a5-2aca70f63769/bin/ugemcutter-Zs13ybUbV0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE