./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360fc2cf-1ac9-4cc8-86a7-323d482d932e/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360fc2cf-1ac9-4cc8-86a7-323d482d932e/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360fc2cf-1ac9-4cc8-86a7-323d482d932e/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360fc2cf-1ac9-4cc8-86a7-323d482d932e/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360fc2cf-1ac9-4cc8-86a7-323d482d932e/bin/uautomizer-TMbwUNV5ro --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 f7efed4227021db06f22a3abd4d1096de1449b086dcfb78e041156858b4360a4 --- 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-8393723 [2022-11-18 20:46:31,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:46:31,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:46:31,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:46:31,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:46:31,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:46:31,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:46:31,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:46:31,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:46:31,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:46:31,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:46:31,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:46:31,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:46:31,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:46:31,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:46:31,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:46:31,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:46:31,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:46:31,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:46:31,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:46:31,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:46:31,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:46:31,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:46:31,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:46:31,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:46:31,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:46:31,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:46:31,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:46:31,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:46:31,784 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:46:31,785 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:46:31,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:46:31,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:46:31,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:46:31,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:46:31,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:46:31,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:46:31,793 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:46:31,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:46:31,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:46:31,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:46:31,798 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360fc2cf-1ac9-4cc8-86a7-323d482d932e/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:46:31,829 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:46:31,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:46:31,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:46:31,830 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:46:31,832 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:46:31,832 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:46:31,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:46:31,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:46:31,834 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:46:31,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:46:31,835 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:46:31,836 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:46:31,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:46:31,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:46:31,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:46:31,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:46:31,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:46:31,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:46:31,837 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:46:31,838 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:46:31,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:46:31,838 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:46:31,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:46:31,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:46:31,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:46:31,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:46:31,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:46:31,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:46:31,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:46:31,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:46:31,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:46:31,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:46:31,843 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:46:31,843 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:46:31,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:46:31,844 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360fc2cf-1ac9-4cc8-86a7-323d482d932e/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7efed4227021db06f22a3abd4d1096de1449b086dcfb78e041156858b4360a4 [2022-11-18 20:46:32,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:46:32,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:46:32,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:46:32,201 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:46:32,201 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:46:32,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360fc2cf-1ac9-4cc8-86a7-323d482d932e/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i [2022-11-18 20:46:32,283 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360fc2cf-1ac9-4cc8-86a7-323d482d932e/bin/uautomizer-TMbwUNV5ro/data/c1c7f5f09/0ca69e0d330f4b7eb7f3635907423623/FLAGd3f4ca5d0 [2022-11-18 20:46:32,838 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:46:32,839 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i [2022-11-18 20:46:32,863 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360fc2cf-1ac9-4cc8-86a7-323d482d932e/bin/uautomizer-TMbwUNV5ro/data/c1c7f5f09/0ca69e0d330f4b7eb7f3635907423623/FLAGd3f4ca5d0 [2022-11-18 20:46:33,127 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360fc2cf-1ac9-4cc8-86a7-323d482d932e/bin/uautomizer-TMbwUNV5ro/data/c1c7f5f09/0ca69e0d330f4b7eb7f3635907423623 [2022-11-18 20:46:33,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:46:33,131 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:46:33,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:46:33,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:46:33,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:46:33,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:46:33" (1/1) ... [2022-11-18 20:46:33,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f6b954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:33, skipping insertion in model container [2022-11-18 20:46:33,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:46:33" (1/1) ... [2022-11-18 20:46:33,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:46:33,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:46:33,381 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 20:46:33,582 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[30448,30461] [2022-11-18 20:46:33,609 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[30811,30824] [2022-11-18 20:46:33,635 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31483,31496] [2022-11-18 20:46:33,638 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31534,31547] [2022-11-18 20:46:33,645 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31683,31696] [2022-11-18 20:46:33,649 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31760,31773] [2022-11-18 20:46:33,652 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31807,31820] [2022-11-18 20:46:33,659 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31916,31929] [2022-11-18 20:46:33,662 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32035,32048] [2022-11-18 20:46:33,667 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32083,32096] [2022-11-18 20:46:33,669 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32160,32173] [2022-11-18 20:46:33,672 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32286,32299] [2022-11-18 20:46:33,682 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32897,32910] [2022-11-18 20:46:33,687 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32974,32987] [2022-11-18 20:46:33,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:46:33,698 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:46:33,717 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 20:46:33,752 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[30448,30461] [2022-11-18 20:46:33,755 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[30811,30824] [2022-11-18 20:46:33,762 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31483,31496] [2022-11-18 20:46:33,770 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31534,31547] [2022-11-18 20:46:33,777 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31683,31696] [2022-11-18 20:46:33,783 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31760,31773] [2022-11-18 20:46:33,784 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31807,31820] [2022-11-18 20:46:33,786 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31916,31929] [2022-11-18 20:46:33,787 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32035,32048] [2022-11-18 20:46:33,788 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32083,32096] [2022-11-18 20:46:33,789 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32160,32173] [2022-11-18 20:46:33,790 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32286,32299] [2022-11-18 20:46:33,807 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32897,32910] [2022-11-18 20:46:33,809 WARN L234 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_360fc2cf-1ac9-4cc8-86a7-323d482d932e/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32974,32987] [2022-11-18 20:46:33,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:46:33,859 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:46:33,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:33 WrapperNode [2022-11-18 20:46:33,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:46:33,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:46:33,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:46:33,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:46:33,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:33" (1/1) ... [2022-11-18 20:46:33,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:33" (1/1) ... [2022-11-18 20:46:33,979 INFO L138 Inliner]: procedures = 174, calls = 78, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 810 [2022-11-18 20:46:33,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:46:33,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:46:33,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:46:33,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:46:33,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:33" (1/1) ... [2022-11-18 20:46:33,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:33" (1/1) ... [2022-11-18 20:46:34,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:33" (1/1) ... [2022-11-18 20:46:34,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:33" (1/1) ... [2022-11-18 20:46:34,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:33" (1/1) ... [2022-11-18 20:46:34,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:33" (1/1) ... [2022-11-18 20:46:34,070 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:33" (1/1) ... [2022-11-18 20:46:34,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:33" (1/1) ... [2022-11-18 20:46:34,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:46:34,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:46:34,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:46:34,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:46:34,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:33" (1/1) ... [2022-11-18 20:46:34,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:46:34,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360fc2cf-1ac9-4cc8-86a7-323d482d932e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:46:34,116 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360fc2cf-1ac9-4cc8-86a7-323d482d932e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:46:34,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_360fc2cf-1ac9-4cc8-86a7-323d482d932e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:46:34,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:46:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:46:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:46:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2022-11-18 20:46:34,165 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2022-11-18 20:46:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:46:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:46:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:46:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:46:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:46:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:46:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:46:34,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:46:34,169 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:46:34,480 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:46:34,482 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:46:35,697 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:46:35,722 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:46:35,727 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-18 20:46:35,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:46:35 BoogieIcfgContainer [2022-11-18 20:46:35,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:46:35,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:46:35,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:46:35,742 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:46:35,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:46:33" (1/3) ... [2022-11-18 20:46:35,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d3cccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:46:35, skipping insertion in model container [2022-11-18 20:46:35,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:33" (2/3) ... [2022-11-18 20:46:35,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d3cccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:46:35, skipping insertion in model container [2022-11-18 20:46:35,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:46:35" (3/3) ... [2022-11-18 20:46:35,746 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_twice_3t.i [2022-11-18 20:46:35,755 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:46:35,766 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:46:35,766 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2022-11-18 20:46:35,767 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:46:36,040 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 20:46:36,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 873 places, 933 transitions, 1874 flow [2022-11-18 20:46:36,853 INFO L130 PetriNetUnfolder]: 95/1357 cut-off events. [2022-11-18 20:46:36,853 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:46:36,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1363 conditions, 1357 events. 95/1357 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4528 event pairs, 0 based on Foata normal form. 0/1144 useless extension candidates. Maximal degree in co-relation 794. Up to 4 conditions per place. [2022-11-18 20:46:36,903 INFO L82 GeneralOperation]: Start removeDead. Operand has 873 places, 933 transitions, 1874 flow [2022-11-18 20:46:36,934 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 873 places, 933 transitions, 1874 flow [2022-11-18 20:46:36,952 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:46:36,959 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;@50a60ab0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:46:36,959 INFO L358 AbstractCegarLoop]: Starting to check reachability of 113 error locations. [2022-11-18 20:46:36,978 INFO L130 PetriNetUnfolder]: 2/59 cut-off events. [2022-11-18 20:46:36,979 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:46:36,979 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:46:36,980 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] [2022-11-18 20:46:36,980 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-18 20:46:36,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:46:36,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1231382047, now seen corresponding path program 1 times [2022-11-18 20:46:36,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:46:36,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936552105] [2022-11-18 20:46:36,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:46:36,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:46:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:46:37,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:46:37,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:46:37,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936552105] [2022-11-18 20:46:37,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936552105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:46:37,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:46:37,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:46:37,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057440359] [2022-11-18 20:46:37,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:46:38,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:46:38,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:46:38,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:46:38,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:46:38,066 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 933 [2022-11-18 20:46:38,076 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 873 places, 933 transitions, 1874 flow. Second operand has 6 states, 6 states have (on average 501.8333333333333) internal successors, (3011), 6 states have internal predecessors, (3011), 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) [2022-11-18 20:46:38,076 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:46:38,076 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 933 [2022-11-18 20:46:38,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:47:04,167 INFO L130 PetriNetUnfolder]: 31092/97793 cut-off events. [2022-11-18 20:47:04,168 INFO L131 PetriNetUnfolder]: For 4/9 co-relation queries the response was YES. [2022-11-18 20:47:04,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155437 conditions, 97793 events. 31092/97793 cut-off events. For 4/9 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 1055612 event pairs, 27666 based on Foata normal form. 7764/88460 useless extension candidates. Maximal degree in co-relation 154665. Up to 57633 conditions per place. [2022-11-18 20:47:04,601 INFO L137 encePairwiseOnDemand]: 883/933 looper letters, 383 selfloop transitions, 5 changer transitions 2/888 dead transitions. [2022-11-18 20:47:04,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 877 places, 888 transitions, 2560 flow [2022-11-18 20:47:04,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:47:04,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:47:04,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3433 transitions. [2022-11-18 20:47:04,633 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6132547338335119 [2022-11-18 20:47:04,634 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3433 transitions. [2022-11-18 20:47:04,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3433 transitions. [2022-11-18 20:47:04,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:47:04,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3433 transitions. [2022-11-18 20:47:04,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 572.1666666666666) internal successors, (3433), 6 states have internal predecessors, (3433), 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) [2022-11-18 20:47:04,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 933.0) internal successors, (6531), 7 states have internal predecessors, (6531), 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) [2022-11-18 20:47:04,685 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 933.0) internal successors, (6531), 7 states have internal predecessors, (6531), 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) [2022-11-18 20:47:04,687 INFO L175 Difference]: Start difference. First operand has 873 places, 933 transitions, 1874 flow. Second operand 6 states and 3433 transitions. [2022-11-18 20:47:04,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 877 places, 888 transitions, 2560 flow [2022-11-18 20:47:04,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 877 places, 888 transitions, 2560 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:47:04,720 INFO L231 Difference]: Finished difference. Result has 877 places, 886 transitions, 1790 flow [2022-11-18 20:47:04,724 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=933, PETRI_DIFFERENCE_MINUEND_FLOW=1784, PETRI_DIFFERENCE_MINUEND_PLACES=872, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=888, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=883, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1790, PETRI_PLACES=877, PETRI_TRANSITIONS=886} [2022-11-18 20:47:04,728 INFO L288 CegarLoopForPetriNet]: 873 programPoint places, 4 predicate places. [2022-11-18 20:47:04,734 INFO L495 AbstractCegarLoop]: Abstraction has has 877 places, 886 transitions, 1790 flow [2022-11-18 20:47:04,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 501.8333333333333) internal successors, (3011), 6 states have internal predecessors, (3011), 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) [2022-11-18 20:47:04,736 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:47:04,736 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, 1, 1, 1] [2022-11-18 20:47:04,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:47:04,737 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-18 20:47:04,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:47:04,738 INFO L85 PathProgramCache]: Analyzing trace with hash -245472987, now seen corresponding path program 1 times [2022-11-18 20:47:04,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:47:04,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403879790] [2022-11-18 20:47:04,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:47:04,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:47:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:04,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:04,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:47:04,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403879790] [2022-11-18 20:47:04,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403879790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:47:04,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:47:04,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:47:04,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140968237] [2022-11-18 20:47:04,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:47:04,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:47:04,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:47:04,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:47:04,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:47:04,866 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 860 out of 933 [2022-11-18 20:47:04,870 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 877 places, 886 transitions, 1790 flow. Second operand has 3 states, 3 states have (on average 861.0) internal successors, (2583), 3 states have internal predecessors, (2583), 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) [2022-11-18 20:47:04,870 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:47:04,870 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 860 of 933 [2022-11-18 20:47:04,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:47:05,290 INFO L130 PetriNetUnfolder]: 28/1316 cut-off events. [2022-11-18 20:47:05,290 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:47:05,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1385 conditions, 1316 events. 28/1316 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4480 event pairs, 0 based on Foata normal form. 0/1129 useless extension candidates. Maximal degree in co-relation 1265. Up to 29 conditions per place. [2022-11-18 20:47:05,318 INFO L137 encePairwiseOnDemand]: 930/933 looper letters, 49 selfloop transitions, 2 changer transitions 0/909 dead transitions. [2022-11-18 20:47:05,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 877 places, 909 transitions, 1946 flow [2022-11-18 20:47:05,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:47:05,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:47:05,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2632 transitions. [2022-11-18 20:47:05,325 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9403358342265095 [2022-11-18 20:47:05,325 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2632 transitions. [2022-11-18 20:47:05,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2632 transitions. [2022-11-18 20:47:05,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:47:05,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2632 transitions. [2022-11-18 20:47:05,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 877.3333333333334) internal successors, (2632), 3 states have internal predecessors, (2632), 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) [2022-11-18 20:47:05,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 933.0) internal successors, (3732), 4 states have internal predecessors, (3732), 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) [2022-11-18 20:47:05,342 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 933.0) internal successors, (3732), 4 states have internal predecessors, (3732), 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) [2022-11-18 20:47:05,342 INFO L175 Difference]: Start difference. First operand has 877 places, 886 transitions, 1790 flow. Second operand 3 states and 2632 transitions. [2022-11-18 20:47:05,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 877 places, 909 transitions, 1946 flow [2022-11-18 20:47:05,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 872 places, 909 transitions, 1928 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:47:05,361 INFO L231 Difference]: Finished difference. Result has 873 places, 887 transitions, 1792 flow [2022-11-18 20:47:05,362 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=933, PETRI_DIFFERENCE_MINUEND_FLOW=1780, PETRI_DIFFERENCE_MINUEND_PLACES=870, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=886, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=884, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1792, PETRI_PLACES=873, PETRI_TRANSITIONS=887} [2022-11-18 20:47:05,363 INFO L288 CegarLoopForPetriNet]: 873 programPoint places, 0 predicate places. [2022-11-18 20:47:05,363 INFO L495 AbstractCegarLoop]: Abstraction has has 873 places, 887 transitions, 1792 flow [2022-11-18 20:47:05,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 861.0) internal successors, (2583), 3 states have internal predecessors, (2583), 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) [2022-11-18 20:47:05,365 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:47:05,365 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, 1, 1, 1, 1, 1] [2022-11-18 20:47:05,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:47:05,366 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-18 20:47:05,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:47:05,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1621623962, now seen corresponding path program 1 times [2022-11-18 20:47:05,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:47:05,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396242334] [2022-11-18 20:47:05,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:47:05,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:47:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:05,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:05,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:47:05,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396242334] [2022-11-18 20:47:05,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396242334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:47:05,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:47:05,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:47:05,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620581229] [2022-11-18 20:47:05,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:47:05,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:47:05,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:47:05,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:47:05,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:47:05,822 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 933 [2022-11-18 20:47:05,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 873 places, 887 transitions, 1792 flow. Second operand has 6 states, 6 states have (on average 502.8333333333333) internal successors, (3017), 6 states have internal predecessors, (3017), 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) [2022-11-18 20:47:05,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:47:05,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 933 [2022-11-18 20:47:05,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand