./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/sync01.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/sync01.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w --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 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932 --- 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-2329fc7 [2022-12-13 09:15:54,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 09:15:54,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 09:15:54,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 09:15:54,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 09:15:54,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 09:15:54,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 09:15:54,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 09:15:54,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 09:15:54,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 09:15:54,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 09:15:54,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 09:15:54,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 09:15:54,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 09:15:54,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 09:15:54,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 09:15:54,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 09:15:54,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 09:15:54,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 09:15:54,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 09:15:54,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 09:15:54,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 09:15:54,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 09:15:54,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 09:15:54,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 09:15:54,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 09:15:54,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 09:15:54,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 09:15:54,092 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 09:15:54,092 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 09:15:54,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 09:15:54,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 09:15:54,094 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 09:15:54,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 09:15:54,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 09:15:54,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 09:15:54,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 09:15:54,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 09:15:54,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 09:15:54,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 09:15:54,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 09:15:54,098 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/config/svcomp-Reach-32bit-GemCutter_Default.epf [2022-12-13 09:15:54,117 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 09:15:54,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 09:15:54,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 09:15:54,118 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 09:15:54,118 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 09:15:54,119 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 09:15:54,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 09:15:54,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 09:15:54,119 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 09:15:54,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 09:15:54,120 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 09:15:54,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 09:15:54,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 09:15:54,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 09:15:54,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 09:15:54,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 09:15:54,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 09:15:54,121 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 09:15:54,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 09:15:54,121 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 09:15:54,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 09:15:54,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 09:15:54,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 09:15:54,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 09:15:54,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:15:54,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 09:15:54,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 09:15:54,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 09:15:54,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 09:15:54,122 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-12-13 09:15:54,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 09:15:54,123 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-13 09:15:54,123 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-12-13 09:15:54,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 09:15:54,123 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-12-13 09:15:54,123 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-12-13 09:15:54,123 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_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932 [2022-12-13 09:15:54,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 09:15:54,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 09:15:54,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 09:15:54,345 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 09:15:54,346 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 09:15:54,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/../../sv-benchmarks/c/pthread/sync01.i [2022-12-13 09:15:56,971 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 09:15:57,217 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 09:15:57,219 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/sv-benchmarks/c/pthread/sync01.i [2022-12-13 09:15:57,231 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/data/f68df9cee/2eaf52e80fea4999bad7a9df92911299/FLAG5c2254917 [2022-12-13 09:15:57,245 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/data/f68df9cee/2eaf52e80fea4999bad7a9df92911299 [2022-12-13 09:15:57,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 09:15:57,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 09:15:57,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 09:15:57,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 09:15:57,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 09:15:57,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:15:57" (1/1) ... [2022-12-13 09:15:57,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d56315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:57, skipping insertion in model container [2022-12-13 09:15:57,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:15:57" (1/1) ... [2022-12-13 09:15:57,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 09:15:57,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 09:15:57,570 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/sv-benchmarks/c/pthread/sync01.i[42004,42017] [2022-12-13 09:15:57,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:15:57,588 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 09:15:57,628 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/sv-benchmarks/c/pthread/sync01.i[42004,42017] [2022-12-13 09:15:57,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:15:57,668 INFO L208 MainTranslator]: Completed translation [2022-12-13 09:15:57,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:57 WrapperNode [2022-12-13 09:15:57,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 09:15:57,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 09:15:57,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 09:15:57,670 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 09:15:57,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:57" (1/1) ... [2022-12-13 09:15:57,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:57" (1/1) ... [2022-12-13 09:15:57,708 INFO L138 Inliner]: procedures = 268, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-12-13 09:15:57,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 09:15:57,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 09:15:57,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 09:15:57,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 09:15:57,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:57" (1/1) ... [2022-12-13 09:15:57,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:57" (1/1) ... [2022-12-13 09:15:57,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:57" (1/1) ... [2022-12-13 09:15:57,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:57" (1/1) ... [2022-12-13 09:15:57,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:57" (1/1) ... [2022-12-13 09:15:57,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:57" (1/1) ... [2022-12-13 09:15:57,730 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:57" (1/1) ... [2022-12-13 09:15:57,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:57" (1/1) ... [2022-12-13 09:15:57,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 09:15:57,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 09:15:57,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 09:15:57,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 09:15:57,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:57" (1/1) ... [2022-12-13 09:15:57,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:15:57,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:15:57,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 09:15:57,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 09:15:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 09:15:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 09:15:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 09:15:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 09:15:57,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 09:15:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 09:15:57,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 09:15:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 09:15:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 09:15:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 09:15:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 09:15:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 09:15:57,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 09:15:57,798 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 09:15:57,898 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 09:15:57,900 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 09:15:58,070 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 09:15:58,077 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 09:15:58,077 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 09:15:58,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:15:58 BoogieIcfgContainer [2022-12-13 09:15:58,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 09:15:58,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 09:15:58,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 09:15:58,083 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 09:15:58,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:15:57" (1/3) ... [2022-12-13 09:15:58,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3163086f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:15:58, skipping insertion in model container [2022-12-13 09:15:58,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:57" (2/3) ... [2022-12-13 09:15:58,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3163086f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:15:58, skipping insertion in model container [2022-12-13 09:15:58,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:15:58" (3/3) ... [2022-12-13 09:15:58,085 INFO L112 eAbstractionObserver]: Analyzing ICFG sync01.i [2022-12-13 09:15:58,091 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 09:15:58,099 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 09:15:58,099 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 09:15:58,100 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 09:15:58,173 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 09:15:58,207 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:15:58,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 09:15:58,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:15:58,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 09:15:58,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-12-13 09:15:58,237 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 09:15:58,248 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-12-13 09:15:58,252 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;@28f11f5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:15:58,252 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 09:15:58,429 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:15:58,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:15:58,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1820370001, now seen corresponding path program 1 times [2022-12-13 09:15:58,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:15:58,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026525877] [2022-12-13 09:15:58,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:15:58,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:15:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:15:58,832 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-13 09:15:58,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:15:58,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026525877] [2022-12-13 09:15:58,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026525877] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:15:58,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:15:58,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 09:15:58,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396804414] [2022-12-13 09:15:58,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:15:58,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:15:58,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:15:58,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:15:58,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 09:15:58,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:15:58,858 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:15:58,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:15:58,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:15:58,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:15:58,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 09:15:58,941 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:15:58,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:15:58,942 INFO L85 PathProgramCache]: Analyzing trace with hash -837080977, now seen corresponding path program 2 times [2022-12-13 09:15:58,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:15:58,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775078832] [2022-12-13 09:15:58,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:15:58,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:15:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:15:59,094 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 09:15:59,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:15:59,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775078832] [2022-12-13 09:15:59,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775078832] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:15:59,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:15:59,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 09:15:59,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61009276] [2022-12-13 09:15:59,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:15:59,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:15:59,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:15:59,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:15:59,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 09:15:59,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:15:59,098 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:15:59,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:15:59,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:15:59,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:15:59,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:15:59,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:15:59,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 09:15:59,156 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:15:59,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:15:59,156 INFO L85 PathProgramCache]: Analyzing trace with hash -284139355, now seen corresponding path program 1 times [2022-12-13 09:15:59,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:15:59,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797980857] [2022-12-13 09:15:59,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:15:59,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:15:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:15:59,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:15:59,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:15:59,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797980857] [2022-12-13 09:15:59,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797980857] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:15:59,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523317849] [2022-12-13 09:15:59,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:15:59,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:15:59,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:15:59,373 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:15:59,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 09:15:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:15:59,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 09:15:59,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:15:59,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:15:59,559 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 09:15:59,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523317849] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:15:59,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 09:15:59,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 9 [2022-12-13 09:15:59,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826061612] [2022-12-13 09:15:59,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:15:59,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 09:15:59,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:15:59,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 09:15:59,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-13 09:15:59,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:15:59,563 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:15:59,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:15:59,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:15:59,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:15:59,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:15:59,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:15:59,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:15:59,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 09:15:59,694 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 09:15:59,695 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-13 09:15:59,695 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-13 09:15:59,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 09:15:59,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:15:59,906 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2022-12-13 09:15:59,912 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 09:15:59,912 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 09:15:59,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:15:59 BasicIcfg [2022-12-13 09:15:59,920 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 09:15:59,921 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 09:15:59,922 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 09:15:59,922 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 09:15:59,923 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:15:58" (3/4) ... [2022-12-13 09:15:59,930 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 09:15:59,947 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 09:15:59,947 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 09:15:59,957 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-12-13 09:15:59,957 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 09:15:59,958 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 09:15:59,958 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 09:16:00,015 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/witness.graphml [2022-12-13 09:16:00,016 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 09:16:00,016 INFO L158 Benchmark]: Toolchain (without parser) took 2767.15ms. Allocated memory was 136.3MB in the beginning and 190.8MB in the end (delta: 54.5MB). Free memory was 100.7MB in the beginning and 146.2MB in the end (delta: -45.5MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2022-12-13 09:16:00,017 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 136.3MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 09:16:00,017 INFO L158 Benchmark]: CACSL2BoogieTranslator took 418.51ms. Allocated memory is still 136.3MB. Free memory was 100.7MB in the beginning and 72.7MB in the end (delta: 28.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-13 09:16:00,017 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.84ms. Allocated memory is still 136.3MB. Free memory was 72.3MB in the beginning and 70.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 09:16:00,018 INFO L158 Benchmark]: Boogie Preprocessor took 25.24ms. Allocated memory is still 136.3MB. Free memory was 70.1MB in the beginning and 68.5MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 09:16:00,018 INFO L158 Benchmark]: RCFGBuilder took 344.19ms. Allocated memory is still 136.3MB. Free memory was 68.5MB in the beginning and 53.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 09:16:00,018 INFO L158 Benchmark]: TraceAbstraction took 1839.56ms. Allocated memory was 136.3MB in the beginning and 190.8MB in the end (delta: 54.5MB). Free memory was 53.0MB in the beginning and 148.3MB in the end (delta: -95.3MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2022-12-13 09:16:00,019 INFO L158 Benchmark]: Witness Printer took 94.45ms. Allocated memory is still 190.8MB. Free memory was 148.3MB in the beginning and 146.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 09:16:00,020 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 136.3MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 418.51ms. Allocated memory is still 136.3MB. Free memory was 100.7MB in the beginning and 72.7MB in the end (delta: 28.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.84ms. Allocated memory is still 136.3MB. Free memory was 72.3MB in the beginning and 70.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.24ms. Allocated memory is still 136.3MB. Free memory was 70.1MB in the beginning and 68.5MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 344.19ms. Allocated memory is still 136.3MB. Free memory was 68.5MB in the beginning and 53.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1839.56ms. Allocated memory was 136.3MB in the beginning and 190.8MB in the end (delta: 54.5MB). Free memory was 53.0MB in the beginning and 148.3MB in the end (delta: -95.3MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. * Witness Printer took 94.45ms. Allocated memory is still 190.8MB. Free memory was 148.3MB in the beginning and 146.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2180, independent: 1803, independent conditional: 724, independent unconditional: 1079, dependent: 377, dependent conditional: 353, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1847, independent: 1803, independent conditional: 724, independent unconditional: 1079, dependent: 44, dependent conditional: 20, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1847, independent: 1803, independent conditional: 724, independent unconditional: 1079, dependent: 44, dependent conditional: 20, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1882, independent: 1803, independent conditional: 0, independent unconditional: 1803, dependent: 79, dependent conditional: 35, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1882, independent: 1803, independent conditional: 0, independent unconditional: 1803, dependent: 79, dependent conditional: 18, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1882, independent: 1803, independent conditional: 0, independent unconditional: 1803, dependent: 79, dependent conditional: 18, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1045, independent: 1015, independent conditional: 0, independent unconditional: 1015, dependent: 30, dependent conditional: 6, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1045, independent: 1004, independent conditional: 0, independent unconditional: 1004, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 41, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 30, dependent conditional: 6, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 30, dependent conditional: 6, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 122, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 74, dependent conditional: 13, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1882, independent: 788, independent conditional: 0, independent unconditional: 788, dependent: 49, dependent conditional: 12, dependent unconditional: 37, unknown: 1045, unknown conditional: 6, unknown unconditional: 1039] , Statistics on independence cache: Total cache size (in pairs): 1045, Positive cache size: 1015, Positive conditional cache size: 0, Positive unconditional cache size: 1015, Negative cache size: 30, Negative conditional cache size: 6, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 17, Maximal queried relation: 3, Independence queries for same thread: 333 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 297, Number of trivial persistent sets: 265, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1103, independent: 1079, independent conditional: 0, independent unconditional: 1079, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2180, independent: 1803, independent conditional: 724, independent unconditional: 1079, dependent: 377, dependent conditional: 353, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1847, independent: 1803, independent conditional: 724, independent unconditional: 1079, dependent: 44, dependent conditional: 20, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1847, independent: 1803, independent conditional: 724, independent unconditional: 1079, dependent: 44, dependent conditional: 20, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1882, independent: 1803, independent conditional: 0, independent unconditional: 1803, dependent: 79, dependent conditional: 35, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1882, independent: 1803, independent conditional: 0, independent unconditional: 1803, dependent: 79, dependent conditional: 18, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1882, independent: 1803, independent conditional: 0, independent unconditional: 1803, dependent: 79, dependent conditional: 18, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1045, independent: 1015, independent conditional: 0, independent unconditional: 1015, dependent: 30, dependent conditional: 6, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1045, independent: 1004, independent conditional: 0, independent unconditional: 1004, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 41, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 30, dependent conditional: 6, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 30, dependent conditional: 6, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 122, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 74, dependent conditional: 13, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1882, independent: 788, independent conditional: 0, independent unconditional: 788, dependent: 49, dependent conditional: 12, dependent unconditional: 37, unknown: 1045, unknown conditional: 6, unknown unconditional: 1039] , Statistics on independence cache: Total cache size (in pairs): 1045, Positive cache size: 1015, Positive conditional cache size: 0, Positive unconditional cache size: 1015, Negative cache size: 30, Negative conditional cache size: 6, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 17, Maximal queried relation: 3, Independence queries for same thread: 333 - PositiveResult [Line: 966]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 133 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.4s, 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: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 368 NumberOfCodeBlocks, 368 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 364 ConstructedInterpolants, 0 QuantifiedInterpolants, 610 SizeOfPredicates, 4 NumberOfNonLiveVariables, 250 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 15/16 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 09:16:00,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-12-13 09:16:00,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_698d979a-cd6f-4c0d-be70-75e4000fe70e/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE