./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46292c30-5e6b-467e-ad6d-160bc763242c/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46292c30-5e6b-467e-ad6d-160bc763242c/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46292c30-5e6b-467e-ad6d-160bc763242c/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46292c30-5e6b-467e-ad6d-160bc763242c/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46292c30-5e6b-467e-ad6d-160bc763242c/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46292c30-5e6b-467e-ad6d-160bc763242c/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16b049fb81e05ec2192b5dc6cabf7c8b89c1486d4e623332a0a01a89383c6c7d --- 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-e04fb08 [2022-11-16 11:31:33,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:31:33,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:31:33,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:31:33,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:31:33,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:31:33,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:31:33,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:31:33,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:31:33,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:31:33,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:31:33,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:31:33,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:31:33,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:31:33,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:31:33,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:31:33,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:31:33,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:31:33,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:31:33,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:31:33,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:31:33,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:31:33,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:31:33,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:31:33,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:31:33,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:31:33,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:31:33,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:31:33,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:31:33,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:31:33,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:31:33,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:31:33,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:31:33,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:31:33,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:31:33,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:31:33,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:31:33,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:31:33,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:31:33,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:31:33,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:31:33,771 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46292c30-5e6b-467e-ad6d-160bc763242c/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:31:33,813 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:31:33,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:31:33,814 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:31:33,814 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:31:33,815 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:31:33,816 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:31:33,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:31:33,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:31:33,817 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:31:33,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:31:33,818 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:31:33,819 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:31:33,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:31:33,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:31:33,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:31:33,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:31:33,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:31:33,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:31:33,820 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:31:33,820 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:31:33,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:31:33,821 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:31:33,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:31:33,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:31:33,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:31:33,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:31:33,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:31:33,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:31:33,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:31:33,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:31:33,824 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:31:33,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:31:33,825 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:31:33,825 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:31:33,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:31:33,825 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_46292c30-5e6b-467e-ad6d-160bc763242c/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46292c30-5e6b-467e-ad6d-160bc763242c/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16b049fb81e05ec2192b5dc6cabf7c8b89c1486d4e623332a0a01a89383c6c7d [2022-11-16 11:31:34,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:31:34,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:31:34,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:31:34,214 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:31:34,215 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:31:34,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46292c30-5e6b-467e-ad6d-160bc763242c/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i [2022-11-16 11:31:34,312 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46292c30-5e6b-467e-ad6d-160bc763242c/bin/uautomizer-tPACEb0tL8/data/b43e3dd17/cd267dfd00504e4c9ca2e43cfefdc248/FLAGf73971984 [2022-11-16 11:31:34,960 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:31:34,961 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i [2022-11-16 11:31:34,988 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46292c30-5e6b-467e-ad6d-160bc763242c/bin/uautomizer-tPACEb0tL8/data/b43e3dd17/cd267dfd00504e4c9ca2e43cfefdc248/FLAGf73971984 [2022-11-16 11:31:35,260 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46292c30-5e6b-467e-ad6d-160bc763242c/bin/uautomizer-tPACEb0tL8/data/b43e3dd17/cd267dfd00504e4c9ca2e43cfefdc248 [2022-11-16 11:31:35,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:31:35,264 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:31:35,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:31:35,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:31:35,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:31:35,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:31:35" (1/1) ... [2022-11-16 11:31:35,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fef1a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:35, skipping insertion in model container [2022-11-16 11:31:35,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:31:35" (1/1) ... [2022-11-16 11:31:35,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:31:35,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:31:35,511 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 11:31:35,680 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[30448,30461] [2022-11-16 11:31:35,691 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[30811,30824] [2022-11-16 11:31:35,707 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31483,31496] [2022-11-16 11:31:35,708 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31534,31547] [2022-11-16 11:31:35,711 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31683,31696] [2022-11-16 11:31:35,713 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31760,31773] [2022-11-16 11:31:35,714 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31807,31820] [2022-11-16 11:31:35,716 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31916,31929] [2022-11-16 11:31:35,718 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32035,32048] [2022-11-16 11:31:35,719 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32083,32096] [2022-11-16 11:31:35,720 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32160,32173] [2022-11-16 11:31:35,722 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32286,32299] [2022-11-16 11:31:35,732 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32869,32882] [2022-11-16 11:31:35,733 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32946,32959] [2022-11-16 11:31:35,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:31:35,744 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:31:35,763 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 11:31:35,784 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[30448,30461] [2022-11-16 11:31:35,789 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[30811,30824] [2022-11-16 11:31:35,809 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31483,31496] [2022-11-16 11:31:35,810 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31534,31547] [2022-11-16 11:31:35,813 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31683,31696] [2022-11-16 11:31:35,814 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31760,31773] [2022-11-16 11:31:35,826 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31807,31820] [2022-11-16 11:31:35,835 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31916,31929] [2022-11-16 11:31:35,836 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32035,32048] [2022-11-16 11:31:35,837 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32083,32096] [2022-11-16 11:31:35,838 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32160,32173] [2022-11-16 11:31:35,840 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32286,32299] [2022-11-16 11:31:35,861 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32869,32882] [2022-11-16 11:31:35,863 WARN L229 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_46292c30-5e6b-467e-ad6d-160bc763242c/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32946,32959] [2022-11-16 11:31:35,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:31:35,911 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:31:35,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:35 WrapperNode [2022-11-16 11:31:35,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:31:35,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:31:35,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:31:35,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:31:35,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:35" (1/1) ... [2022-11-16 11:31:35,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:35" (1/1) ... [2022-11-16 11:31:36,039 INFO L138 Inliner]: procedures = 174, calls = 70, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 781 [2022-11-16 11:31:36,042 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:31:36,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:31:36,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:31:36,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:31:36,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:35" (1/1) ... [2022-11-16 11:31:36,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:35" (1/1) ... [2022-11-16 11:31:36,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:35" (1/1) ... [2022-11-16 11:31:36,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:35" (1/1) ... [2022-11-16 11:31:36,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:35" (1/1) ... [2022-11-16 11:31:36,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:35" (1/1) ... [2022-11-16 11:31:36,165 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:35" (1/1) ... [2022-11-16 11:31:36,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:35" (1/1) ... [2022-11-16 11:31:36,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:31:36,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:31:36,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:31:36,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:31:36,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:35" (1/1) ... [2022-11-16 11:31:36,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:31:36,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46292c30-5e6b-467e-ad6d-160bc763242c/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:36,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46292c30-5e6b-467e-ad6d-160bc763242c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:36,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46292c30-5e6b-467e-ad6d-160bc763242c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:31:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:31:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:31:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:31:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2022-11-16 11:31:36,275 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2022-11-16 11:31:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:31:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:31:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:31:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:31:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:31:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:31:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:31:36,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:31:36,280 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:31:36,462 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:31:36,464 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:31:37,911 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:31:37,938 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:31:37,940 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-16 11:31:37,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:31:37 BoogieIcfgContainer [2022-11-16 11:31:37,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:31:37,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:31:37,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:31:37,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:31:37,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:31:35" (1/3) ... [2022-11-16 11:31:37,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3beac921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:31:37, skipping insertion in model container [2022-11-16 11:31:37,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:35" (2/3) ... [2022-11-16 11:31:37,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3beac921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:31:37, skipping insertion in model container [2022-11-16 11:31:37,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:31:37" (3/3) ... [2022-11-16 11:31:37,953 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_2t.i [2022-11-16 11:31:37,963 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:31:37,975 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:31:37,975 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 76 error locations. [2022-11-16 11:31:37,975 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:31:38,225 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 11:31:38,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 839 places, 898 transitions, 1804 flow [2022-11-16 11:31:39,041 INFO L130 PetriNetUnfolder]: 94/1320 cut-off events. [2022-11-16 11:31:39,041 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:31:39,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1326 conditions, 1320 events. 94/1320 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4488 event pairs, 0 based on Foata normal form. 0/1110 useless extension candidates. Maximal degree in co-relation 792. Up to 4 conditions per place. [2022-11-16 11:31:39,082 INFO L82 GeneralOperation]: Start removeDead. Operand has 839 places, 898 transitions, 1804 flow [2022-11-16 11:31:39,111 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 839 places, 898 transitions, 1804 flow [2022-11-16 11:31:39,128 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:31:39,134 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@77e52838, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:31:39,135 INFO L358 AbstractCegarLoop]: Starting to check reachability of 111 error locations. [2022-11-16 11:31:39,144 INFO L130 PetriNetUnfolder]: 2/54 cut-off events. [2022-11-16 11:31:39,145 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:31:39,145 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:31:39,146 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:39,147 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-16 11:31:39,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:39,184 INFO L85 PathProgramCache]: Analyzing trace with hash 656819321, now seen corresponding path program 1 times [2022-11-16 11:31:39,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:39,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177745191] [2022-11-16 11:31:39,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:39,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:40,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:40,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:40,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177745191] [2022-11-16 11:31:40,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177745191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:40,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:40,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:31:40,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388246535] [2022-11-16 11:31:40,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:40,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:31:40,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:40,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:31:40,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:31:40,175 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 478 out of 898 [2022-11-16 11:31:40,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 839 places, 898 transitions, 1804 flow. Second operand has 6 states, 6 states have (on average 479.8333333333333) internal successors, (2879), 6 states have internal predecessors, (2879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:40,187 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:31:40,187 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 478 of 898 [2022-11-16 11:31:40,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:32:04,325 INFO L130 PetriNetUnfolder]: 31092/97439 cut-off events. [2022-11-16 11:32:04,327 INFO L131 PetriNetUnfolder]: For 4/9 co-relation queries the response was YES. [2022-11-16 11:32:04,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155071 conditions, 97439 events. 31092/97439 cut-off events. For 4/9 co-relation queries the response was YES. Maximal size of possible extension queue 458. Compared 1050772 event pairs, 27666 based on Foata normal form. 7762/88107 useless extension candidates. Maximal degree in co-relation 154345. Up to 57621 conditions per place. [2022-11-16 11:32:04,776 INFO L137 encePairwiseOnDemand]: 849/898 looper letters, 371 selfloop transitions, 5 changer transitions 1/854 dead transitions. [2022-11-16 11:32:04,776 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 843 places, 854 transitions, 2468 flow [2022-11-16 11:32:04,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:32:04,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:32:04,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3288 transitions. [2022-11-16 11:32:04,807 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6102449888641426 [2022-11-16 11:32:04,808 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3288 transitions. [2022-11-16 11:32:04,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3288 transitions. [2022-11-16 11:32:04,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:32:04,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3288 transitions. [2022-11-16 11:32:04,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 548.0) internal successors, (3288), 6 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:04,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:04,862 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:04,864 INFO L175 Difference]: Start difference. First operand has 839 places, 898 transitions, 1804 flow. Second operand 6 states and 3288 transitions. [2022-11-16 11:32:04,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 843 places, 854 transitions, 2468 flow [2022-11-16 11:32:04,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 843 places, 854 transitions, 2468 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:32:04,907 INFO L231 Difference]: Finished difference. Result has 843 places, 853 transitions, 1724 flow [2022-11-16 11:32:04,910 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=1716, PETRI_DIFFERENCE_MINUEND_PLACES=838, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=854, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=849, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1724, PETRI_PLACES=843, PETRI_TRANSITIONS=853} [2022-11-16 11:32:04,916 INFO L288 CegarLoopForPetriNet]: 839 programPoint places, 4 predicate places. [2022-11-16 11:32:04,922 INFO L495 AbstractCegarLoop]: Abstraction has has 843 places, 853 transitions, 1724 flow [2022-11-16 11:32:04,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 479.8333333333333) internal successors, (2879), 6 states have internal predecessors, (2879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:04,924 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:32:04,924 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:04,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:32:04,925 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-16 11:32:04,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:04,927 INFO L85 PathProgramCache]: Analyzing trace with hash 50407119, now seen corresponding path program 1 times [2022-11-16 11:32:04,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:04,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146457695] [2022-11-16 11:32:04,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:04,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:05,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:05,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:05,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146457695] [2022-11-16 11:32:05,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146457695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:05,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:05,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:32:05,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002720649] [2022-11-16 11:32:05,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:05,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:32:05,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:05,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:32:05,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:32:05,039 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 826 out of 898 [2022-11-16 11:32:05,043 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 843 places, 853 transitions, 1724 flow. Second operand has 3 states, 3 states have (on average 827.0) internal successors, (2481), 3 states have internal predecessors, (2481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:05,044 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:32:05,044 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 826 of 898 [2022-11-16 11:32:05,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:32:05,488 INFO L130 PetriNetUnfolder]: 28/1281 cut-off events. [2022-11-16 11:32:05,488 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 11:32:05,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1350 conditions, 1281 events. 28/1281 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4467 event pairs, 0 based on Foata normal form. 0/1096 useless extension candidates. Maximal degree in co-relation 1235. Up to 29 conditions per place. [2022-11-16 11:32:05,516 INFO L137 encePairwiseOnDemand]: 895/898 looper letters, 49 selfloop transitions, 2 changer transitions 0/876 dead transitions. [2022-11-16 11:32:05,517 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 844 places, 876 transitions, 1880 flow [2022-11-16 11:32:05,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:32:05,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:32:05,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2530 transitions. [2022-11-16 11:32:05,524 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9391239792130661 [2022-11-16 11:32:05,524 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2530 transitions. [2022-11-16 11:32:05,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2530 transitions. [2022-11-16 11:32:05,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:32:05,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2530 transitions. [2022-11-16 11:32:05,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 843.3333333333334) internal successors, (2530), 3 states have internal predecessors, (2530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:05,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:05,542 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:05,543 INFO L175 Difference]: Start difference. First operand has 843 places, 853 transitions, 1724 flow. Second operand 3 states and 2530 transitions. [2022-11-16 11:32:05,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 844 places, 876 transitions, 1880 flow [2022-11-16 11:32:05,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 839 places, 876 transitions, 1862 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:32:05,559 INFO L231 Difference]: Finished difference. Result has 840 places, 854 transitions, 1726 flow [2022-11-16 11:32:05,560 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=1714, PETRI_DIFFERENCE_MINUEND_PLACES=837, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=853, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=851, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1726, PETRI_PLACES=840, PETRI_TRANSITIONS=854} [2022-11-16 11:32:05,561 INFO L288 CegarLoopForPetriNet]: 839 programPoint places, 1 predicate places. [2022-11-16 11:32:05,562 INFO L495 AbstractCegarLoop]: Abstraction has has 840 places, 854 transitions, 1726 flow [2022-11-16 11:32:05,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 827.0) internal successors, (2481), 3 states have internal predecessors, (2481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:05,564 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:32:05,564 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:05,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:32:05,564 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-16 11:32:05,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:05,565 INFO L85 PathProgramCache]: Analyzing trace with hash 197198252, now seen corresponding path program 1 times [2022-11-16 11:32:05,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:05,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342351061] [2022-11-16 11:32:05,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:05,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:05,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:05,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:05,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:05,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342351061] [2022-11-16 11:32:06,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342351061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:06,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:06,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:32:06,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959817885] [2022-11-16 11:32:06,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:06,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:32:06,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:06,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:32:06,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:32:06,010 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 478 out of 898 [2022-11-16 11:32:06,015 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 840 places, 854 transitions, 1726 flow. Second operand has 6 states, 6 states have (on average 480.8333333333333) internal successors, (2885), 6 states have internal predecessors, (2885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:06,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:32:06,016 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 478 of 898 [2022-11-16 11:32:06,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand