./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 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/sync01.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw --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 --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:20:23,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:20:23,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:20:23,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:20:23,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:20:23,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:20:23,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:20:23,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:20:23,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:20:23,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:20:23,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:20:23,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:20:23,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:20:23,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:20:23,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:20:23,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:20:23,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:20:23,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:20:23,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:20:23,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:20:23,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:20:23,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:20:23,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:20:23,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:20:23,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:20:23,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:20:23,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:20:23,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:20:23,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:20:23,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:20:23,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:20:23,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:20:23,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:20:23,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:20:23,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:20:23,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:20:23,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:20:23,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:20:23,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:20:23,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:20:23,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:20:23,661 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-11-23 14:20:23,709 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:20:23,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:20:23,710 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:20:23,710 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:20:23,712 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 14:20:23,712 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 14:20:23,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:20:23,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:20:23,713 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:20:23,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:20:23,715 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 14:20:23,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:20:23,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 14:20:23,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:20:23,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 14:20:23,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:20:23,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 14:20:23,716 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 14:20:23,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:20:23,717 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:20:23,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 14:20:23,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:20:23,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:20:23,718 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-23 14:20:23,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:20:23,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:20:23,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:20:23,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:20:23,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 14:20:23,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:20:23,721 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2021-11-23 14:20:23,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 14:20:23,721 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 14:20:23,722 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-23 14:20:23,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 14:20:23,722 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-23 14:20:23,722 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-23 14:20:23,722 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_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932 [2021-11-23 14:20:24,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:20:24,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:20:24,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:20:24,139 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:20:24,139 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:20:24,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/../../sv-benchmarks/c/pthread/sync01.i [2021-11-23 14:20:24,212 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/data/242ad6841/4e6cc6cee3ad44cf8e368b65a30a1979/FLAG471dbd7bb [2021-11-23 14:20:24,867 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:20:24,869 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/sv-benchmarks/c/pthread/sync01.i [2021-11-23 14:20:24,888 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/data/242ad6841/4e6cc6cee3ad44cf8e368b65a30a1979/FLAG471dbd7bb [2021-11-23 14:20:25,109 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/data/242ad6841/4e6cc6cee3ad44cf8e368b65a30a1979 [2021-11-23 14:20:25,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:20:25,114 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:20:25,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:20:25,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:20:25,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:20:25,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:20:25" (1/1) ... [2021-11-23 14:20:25,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a54729e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25, skipping insertion in model container [2021-11-23 14:20:25,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:20:25" (1/1) ... [2021-11-23 14:20:25,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:20:25,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:20:25,738 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_845b8545-d9a3-4aff-b511-3721387bec55/sv-benchmarks/c/pthread/sync01.i[42004,42017] [2021-11-23 14:20:25,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:20:25,768 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:20:25,811 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_845b8545-d9a3-4aff-b511-3721387bec55/sv-benchmarks/c/pthread/sync01.i[42004,42017] [2021-11-23 14:20:25,812 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:20:25,895 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:20:25,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25 WrapperNode [2021-11-23 14:20:25,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:20:25,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:20:25,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:20:25,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:20:25,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (1/1) ... [2021-11-23 14:20:25,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (1/1) ... [2021-11-23 14:20:25,983 INFO L137 Inliner]: procedures = 268, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2021-11-23 14:20:25,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:20:25,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:20:25,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:20:25,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:20:25,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (1/1) ... [2021-11-23 14:20:25,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (1/1) ... [2021-11-23 14:20:26,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (1/1) ... [2021-11-23 14:20:26,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (1/1) ... [2021-11-23 14:20:26,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (1/1) ... [2021-11-23 14:20:26,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (1/1) ... [2021-11-23 14:20:26,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (1/1) ... [2021-11-23 14:20:26,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:20:26,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:20:26,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:20:26,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:20:26,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (1/1) ... [2021-11-23 14:20:26,053 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:20:26,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:20:26,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 14:20:26,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 14:20:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 14:20:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 14:20:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 14:20:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 14:20:26,156 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 14:20:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 14:20:26,156 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 14:20:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 14:20:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-23 14:20:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:20:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 14:20:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:20:26,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:20:26,159 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 14:20:26,287 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:20:26,288 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:20:26,592 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:20:26,602 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:20:26,602 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 14:20:26,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:20:26 BoogieIcfgContainer [2021-11-23 14:20:26,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:20:26,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 14:20:26,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 14:20:26,612 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 14:20:26,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:20:25" (1/3) ... [2021-11-23 14:20:26,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3655d9ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:20:26, skipping insertion in model container [2021-11-23 14:20:26,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (2/3) ... [2021-11-23 14:20:26,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3655d9ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:20:26, skipping insertion in model container [2021-11-23 14:20:26,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:20:26" (3/3) ... [2021-11-23 14:20:26,615 INFO L111 eAbstractionObserver]: Analyzing ICFG sync01.i [2021-11-23 14:20:26,622 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 14:20:26,622 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 14:20:26,623 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 14:20:26,623 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 14:20:26,677 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,678 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,678 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,679 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,679 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,679 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,680 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,680 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,681 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,681 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,682 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,682 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,682 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,682 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,683 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,683 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,683 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,684 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,684 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,685 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,686 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,686 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,686 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,686 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,687 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,688 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,690 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,690 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,690 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,690 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,690 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,691 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,691 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,691 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,691 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,691 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,692 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,692 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,692 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,693 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,693 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,693 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,694 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,694 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,694 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,694 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,694 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,695 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,695 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,695 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,697 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,698 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,704 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,704 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,704 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,704 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,704 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,705 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,705 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,710 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,710 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,710 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,710 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,710 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,711 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,711 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:20:26,721 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-23 14:20:26,786 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-23 14:20:26,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:20:26,795 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-23 14:20:26,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-23 14:20:26,880 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-23 14:20:26,890 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 14:20:26,890 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-23 14:20:27,174 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-23 14:20:27,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:20:27,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1288204292, now seen corresponding path program 1 times [2021-11-23 14:20:27,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:20:27,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124208602] [2021-11-23 14:20:27,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:20:27,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:20:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:20:27,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:20:27,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:20:27,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124208602] [2021-11-23 14:20:27,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124208602] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:20:27,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:20:27,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:20:27,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142263157] [2021-11-23 14:20:27,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:20:27,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:20:27,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:20:27,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:20:27,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:20:27,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:20:27,553 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:20:27,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2021-11-23 14:20:27,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:20:27,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:20:27,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 14:20:27,625 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-23 14:20:27,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:20:27,626 INFO L85 PathProgramCache]: Analyzing trace with hash -488091970, now seen corresponding path program 1 times [2021-11-23 14:20:27,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:20:27,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642608939] [2021-11-23 14:20:27,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:20:27,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:20:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:20:27,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:20:27,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:20:27,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642608939] [2021-11-23 14:20:27,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642608939] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:20:27,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:20:27,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:20:27,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936257665] [2021-11-23 14:20:27,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:20:27,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:20:27,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:20:27,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:20:27,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:20:27,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:20:27,753 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:20:27,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2021-11-23 14:20:27,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:20:27,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:20:27,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:20:27,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:20:27,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 14:20:27,846 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-23 14:20:27,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:20:27,847 INFO L85 PathProgramCache]: Analyzing trace with hash 189052416, now seen corresponding path program 1 times [2021-11-23 14:20:27,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:20:27,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668478645] [2021-11-23 14:20:27,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:20:27,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:20:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:20:28,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:20:28,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:20:28,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668478645] [2021-11-23 14:20:28,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668478645] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:20:28,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081542750] [2021-11-23 14:20:28,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:20:28,143 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:20:28,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:20:28,147 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:20:28,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 14:20:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:20:28,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 14:20:28,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:20:28,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:20:28,598 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 14:20:28,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081542750] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:20:28,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 14:20:28,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 9 [2021-11-23 14:20:28,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351940189] [2021-11-23 14:20:28,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:20:28,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 14:20:28,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:20:28,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 14:20:28,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-23 14:20:28,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:20:28,605 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:20:28,606 INFO L471 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) [2021-11-23 14:20:28,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:20:28,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:20:28,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:20:28,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:20:28,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:20:28,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:20:28,848 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-23 14:20:28,851 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2021-11-23 14:20:28,852 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2021-11-23 14:20:28,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 14:20:29,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:20:29,076 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-23 14:20:29,079 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-23 14:20:29,079 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 14:20:29,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:20:29 BasicIcfg [2021-11-23 14:20:29,083 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 14:20:29,084 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 14:20:29,084 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 14:20:29,084 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 14:20:29,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:20:26" (3/4) ... [2021-11-23 14:20:29,087 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 14:20:29,094 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-11-23 14:20:29,094 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-11-23 14:20:29,101 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-11-23 14:20:29,101 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-23 14:20:29,102 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 14:20:29,102 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 14:20:29,140 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/witness.graphml [2021-11-23 14:20:29,140 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 14:20:29,141 INFO L158 Benchmark]: Toolchain (without parser) took 4026.88ms. Allocated memory was 81.8MB in the beginning and 109.1MB in the end (delta: 27.3MB). Free memory was 41.2MB in the beginning and 42.6MB in the end (delta: -1.4MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2021-11-23 14:20:29,141 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 81.8MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:20:29,142 INFO L158 Benchmark]: CACSL2BoogieTranslator took 777.96ms. Allocated memory was 81.8MB in the beginning and 109.1MB in the end (delta: 27.3MB). Free memory was 41.0MB in the beginning and 64.6MB in the end (delta: -23.6MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2021-11-23 14:20:29,142 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.46ms. Allocated memory is still 109.1MB. Free memory was 64.6MB in the beginning and 62.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:20:29,143 INFO L158 Benchmark]: Boogie Preprocessor took 52.14ms. Allocated memory is still 109.1MB. Free memory was 62.6MB in the beginning and 60.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:20:29,143 INFO L158 Benchmark]: RCFGBuilder took 567.27ms. Allocated memory is still 109.1MB. Free memory was 60.5MB in the beginning and 47.2MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 14:20:29,144 INFO L158 Benchmark]: TraceAbstraction took 2477.08ms. Allocated memory is still 109.1MB. Free memory was 46.6MB in the beginning and 45.9MB in the end (delta: 746.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:20:29,144 INFO L158 Benchmark]: Witness Printer took 56.35ms. Allocated memory is still 109.1MB. Free memory was 45.9MB in the beginning and 42.6MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:20:29,147 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 81.8MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 777.96ms. Allocated memory was 81.8MB in the beginning and 109.1MB in the end (delta: 27.3MB). Free memory was 41.0MB in the beginning and 64.6MB in the end (delta: -23.6MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.46ms. Allocated memory is still 109.1MB. Free memory was 64.6MB in the beginning and 62.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.14ms. Allocated memory is still 109.1MB. Free memory was 62.6MB in the beginning and 60.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 567.27ms. Allocated memory is still 109.1MB. Free memory was 60.5MB in the beginning and 47.2MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2477.08ms. Allocated memory is still 109.1MB. Free memory was 46.6MB in the beginning and 45.9MB in the end (delta: 746.8kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 56.35ms. Allocated memory is still 109.1MB. Free memory was 45.9MB in the beginning and 42.6MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1725, positive: 1432, positive conditional: 583, positive unconditional: 849, negative: 293, negative conditional: 275, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1470, positive: 1432, positive conditional: 583, positive unconditional: 849, negative: 38, negative conditional: 20, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1470, positive: 1432, positive conditional: 583, positive unconditional: 849, negative: 38, negative conditional: 20, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1510, positive: 1432, positive conditional: 458, positive unconditional: 974, negative: 78, negative conditional: 40, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1510, positive: 1432, positive conditional: 188, positive unconditional: 1244, negative: 78, negative conditional: 18, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1510, positive: 1432, positive conditional: 188, positive unconditional: 1244, negative: 78, negative conditional: 18, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 846, positive: 823, positive conditional: 0, positive unconditional: 823, negative: 23, negative conditional: 4, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 846, positive: 818, positive conditional: 0, positive unconditional: 818, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 28, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 23, negative conditional: 4, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 133, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 71, negative conditional: 9, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1510, positive: 609, positive conditional: 188, positive unconditional: 421, negative: 55, negative conditional: 14, negative unconditional: 41, unknown: 846, unknown conditional: 4, unknown unconditional: 842] , Statistics on independence cache: Total cache size (in pairs): 846, Positive cache size: 823, Positive conditional cache size: 0, Positive unconditional cache size: 823, Negative cache size: 23, Negative conditional cache size: 4, Negative unconditional cache size: 19, Eliminated conditions: 292, Maximal queried relation: 3, Independence queries for same thread: 255 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 168, Number of trivial persistent sets: 128, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 867, positive: 849, positive conditional: 0, positive unconditional: 849, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1725, positive: 1432, positive conditional: 583, positive unconditional: 849, negative: 293, negative conditional: 275, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1470, positive: 1432, positive conditional: 583, positive unconditional: 849, negative: 38, negative conditional: 20, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1470, positive: 1432, positive conditional: 583, positive unconditional: 849, negative: 38, negative conditional: 20, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1510, positive: 1432, positive conditional: 458, positive unconditional: 974, negative: 78, negative conditional: 40, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1510, positive: 1432, positive conditional: 188, positive unconditional: 1244, negative: 78, negative conditional: 18, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1510, positive: 1432, positive conditional: 188, positive unconditional: 1244, negative: 78, negative conditional: 18, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 846, positive: 823, positive conditional: 0, positive unconditional: 823, negative: 23, negative conditional: 4, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 846, positive: 818, positive conditional: 0, positive unconditional: 818, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 28, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 23, negative conditional: 4, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 133, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 71, negative conditional: 9, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1510, positive: 609, positive conditional: 188, positive unconditional: 421, negative: 55, negative conditional: 14, negative unconditional: 41, unknown: 846, unknown conditional: 4, unknown unconditional: 842] , Statistics on independence cache: Total cache size (in pairs): 846, Positive cache size: 823, Positive conditional cache size: 0, Positive unconditional cache size: 823, Negative cache size: 23, Negative conditional cache size: 4, Negative unconditional cache size: 19, Eliminated conditions: 292, Maximal queried relation: 3, Independence queries for same thread: 255 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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: 2.3s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.6s, 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, 0.8s InterpolantComputationTime, 344 NumberOfCodeBlocks, 344 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 340 ConstructedInterpolants, 0 QuantifiedInterpolants, 586 SizeOfPredicates, 4 NumberOfNonLiveVariables, 215 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 1/2 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! [2021-11-23 14:20:29,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-11-23 14:20:29,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845b8545-d9a3-4aff-b511-3721387bec55/bin/ugemcutter-aZbSL5k0Dw/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 Result: TRUE