./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/fkp2013-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2aea95-f159-4b39-80b6-d9f83e7131e4/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2aea95-f159-4b39-80b6-d9f83e7131e4/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2aea95-f159-4b39-80b6-d9f83e7131e4/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2aea95-f159-4b39-80b6-d9f83e7131e4/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/fkp2013-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2aea95-f159-4b39-80b6-d9f83e7131e4/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2aea95-f159-4b39-80b6-d9f83e7131e4/bin/uautomizer-uyxdKDjOR8 --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 e812004a84a4494a04d3a026bee09dbf1dbf7d202520f02258b12ac817a7a74e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 12:11:25,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:11:25,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:11:25,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:11:25,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:11:25,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:11:25,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:11:25,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:11:25,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:11:25,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:11:25,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:11:25,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:11:25,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:11:25,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:11:25,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:11:25,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:11:25,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:11:25,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:11:25,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:11:25,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:11:25,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:11:25,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:11:25,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:11:25,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:11:25,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:11:25,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:11:25,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:11:25,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:11:25,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:11:25,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:11:25,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:11:25,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:11:25,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:11:25,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:11:25,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:11:25,832 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:11:25,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:11:25,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:11:25,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:11:25,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:11:25,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:11:25,834 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2aea95-f159-4b39-80b6-d9f83e7131e4/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 12:11:25,849 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:11:25,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:11:25,849 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:11:25,849 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:11:25,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:11:25,850 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:11:25,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:11:25,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:11:25,851 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:11:25,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:11:25,851 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:11:25,851 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:11:25,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:11:25,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:11:25,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:11:25,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:11:25,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:11:25,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:11:25,853 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 12:11:25,853 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:11:25,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:11:25,853 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:11:25,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:11:25,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:11:25,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:11:25,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:11:25,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:11:25,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:11:25,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:11:25,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:11:25,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:11:25,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:11:25,855 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:11:25,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:11:25,855 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:11:25,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:11:25,856 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:11:25,856 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_1a2aea95-f159-4b39-80b6-d9f83e7131e4/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2aea95-f159-4b39-80b6-d9f83e7131e4/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e812004a84a4494a04d3a026bee09dbf1dbf7d202520f02258b12ac817a7a74e [2022-12-13 12:11:26,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:11:26,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:11:26,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:11:26,047 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:11:26,048 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:11:26,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2aea95-f159-4b39-80b6-d9f83e7131e4/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-lit/fkp2013-2.i [2022-12-13 12:11:28,688 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:11:28,885 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:11:28,886 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2aea95-f159-4b39-80b6-d9f83e7131e4/sv-benchmarks/c/pthread-lit/fkp2013-2.i [2022-12-13 12:11:28,895 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2aea95-f159-4b39-80b6-d9f83e7131e4/bin/uautomizer-uyxdKDjOR8/data/aa0f4858a/a154b2477eba4f0a8d2625c024bbb4d3/FLAG77d7e9a8d [2022-12-13 12:11:28,908 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2aea95-f159-4b39-80b6-d9f83e7131e4/bin/uautomizer-uyxdKDjOR8/data/aa0f4858a/a154b2477eba4f0a8d2625c024bbb4d3 [2022-12-13 12:11:28,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:11:28,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:11:28,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:11:28,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:11:28,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:11:28,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:11:28" (1/1) ... [2022-12-13 12:11:28,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a7df249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:11:28, skipping insertion in model container [2022-12-13 12:11:28,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:11:28" (1/1) ... [2022-12-13 12:11:28,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:11:28,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:11:29,139 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2aea95-f159-4b39-80b6-d9f83e7131e4/sv-benchmarks/c/pthread-lit/fkp2013-2.i[30003,30016] [2022-12-13 12:11:29,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:11:29,159 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:11:29,181 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2aea95-f159-4b39-80b6-d9f83e7131e4/sv-benchmarks/c/pthread-lit/fkp2013-2.i[30003,30016] [2022-12-13 12:11:29,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:11:29,204 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:11:29,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:11:29 WrapperNode [2022-12-13 12:11:29,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:11:29,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:11:29,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:11:29,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:11:29,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:11:29" (1/1) ... [2022-12-13 12:11:29,219 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:11:29" (1/1) ... [2022-12-13 12:11:29,231 INFO L138 Inliner]: procedures = 172, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2022-12-13 12:11:29,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:11:29,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:11:29,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:11:29,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:11:29,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:11:29" (1/1) ... [2022-12-13 12:11:29,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:11:29" (1/1) ... [2022-12-13 12:11:29,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:11:29" (1/1) ... [2022-12-13 12:11:29,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:11:29" (1/1) ... [2022-12-13 12:11:29,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:11:29" (1/1) ... [2022-12-13 12:11:29,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:11:29" (1/1) ... [2022-12-13 12:11:29,246 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:11:29" (1/1) ... [2022-12-13 12:11:29,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:11:29" (1/1) ... [2022-12-13 12:11:29,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:11:29,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:11:29,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:11:29,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:11:29,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:11:29" (1/1) ... [2022-12-13 12:11:29,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:11:29,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2aea95-f159-4b39-80b6-d9f83e7131e4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:11:29,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2aea95-f159-4b39-80b6-d9f83e7131e4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:11:29,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2aea95-f159-4b39-80b6-d9f83e7131e4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:11:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-12-13 12:11:29,297 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-12-13 12:11:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-13 12:11:29,297 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-13 12:11:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 12:11:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:11:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:11:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:11:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:11:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:11:29,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:11:29,300 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 12:11:29,403 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:11:29,405 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:11:29,528 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:11:29,547 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:11:29,548 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 12:11:29,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:11:29 BoogieIcfgContainer [2022-12-13 12:11:29,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:11:29,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:11:29,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:11:29,556 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:11:29,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:11:28" (1/3) ... [2022-12-13 12:11:29,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4874bbbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:11:29, skipping insertion in model container [2022-12-13 12:11:29,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:11:29" (2/3) ... [2022-12-13 12:11:29,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4874bbbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:11:29, skipping insertion in model container [2022-12-13 12:11:29,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:11:29" (3/3) ... [2022-12-13 12:11:29,559 INFO L112 eAbstractionObserver]: Analyzing ICFG fkp2013-2.i [2022-12-13 12:11:29,576 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 12:11:29,586 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:11:29,586 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 12:11:29,587 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 12:11:29,633 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 12:11:29,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 83 transitions, 176 flow [2022-12-13 12:11:29,704 INFO L130 PetriNetUnfolder]: 3/96 cut-off events. [2022-12-13 12:11:29,705 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:11:29,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 96 events. 3/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 141 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 70. Up to 4 conditions per place. [2022-12-13 12:11:29,709 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 83 transitions, 176 flow [2022-12-13 12:11:29,713 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 82 transitions, 172 flow [2022-12-13 12:11:29,717 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 12:11:29,727 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 82 transitions, 172 flow [2022-12-13 12:11:29,729 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 82 transitions, 172 flow [2022-12-13 12:11:29,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 82 transitions, 172 flow [2022-12-13 12:11:29,754 INFO L130 PetriNetUnfolder]: 3/96 cut-off events. [2022-12-13 12:11:29,754 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:11:29,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 96 events. 3/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 142 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 70. Up to 4 conditions per place. [2022-12-13 12:11:29,757 INFO L119 LiptonReduction]: Number of co-enabled transitions 1700 [2022-12-13 12:11:31,283 INFO L134 LiptonReduction]: Checked pairs total: 2931 [2022-12-13 12:11:31,283 INFO L136 LiptonReduction]: Total number of compositions: 71 [2022-12-13 12:11:31,297 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:11:31,302 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;@6cafd3bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:11:31,302 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-12-13 12:11:31,303 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 12:11:31,303 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:11:31,303 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:11:31,304 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 12:11:31,304 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-12-13 12:11:31,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:31,308 INFO L85 PathProgramCache]: Analyzing trace with hash 313, now seen corresponding path program 1 times [2022-12-13 12:11:31,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:31,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249985715] [2022-12-13 12:11:31,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:31,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:31,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:31,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:31,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249985715] [2022-12-13 12:11:31,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249985715] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:11:31,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:11:31,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 12:11:31,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126840676] [2022-12-13 12:11:31,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:11:31,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:11:31,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:31,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:11:31,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:11:31,411 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 154 [2022-12-13 12:11:31,413 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 48 flow. Second operand has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:31,413 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:11:31,413 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 154 [2022-12-13 12:11:31,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:11:31,456 INFO L130 PetriNetUnfolder]: 82/192 cut-off events. [2022-12-13 12:11:31,457 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:11:31,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 192 events. 82/192 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 809 event pairs, 82 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 355. Up to 156 conditions per place. [2022-12-13 12:11:31,459 INFO L137 encePairwiseOnDemand]: 153/154 looper letters, 13 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2022-12-13 12:11:31,459 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 19 transitions, 72 flow [2022-12-13 12:11:31,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:11:31,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 12:11:31,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 170 transitions. [2022-12-13 12:11:31,470 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.551948051948052 [2022-12-13 12:11:31,470 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 170 transitions. [2022-12-13 12:11:31,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 170 transitions. [2022-12-13 12:11:31,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:11:31,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 170 transitions. [2022-12-13 12:11:31,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 85.0) internal successors, (170), 2 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:31,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:31,478 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:31,479 INFO L175 Difference]: Start difference. First operand has 26 places, 20 transitions, 48 flow. Second operand 2 states and 170 transitions. [2022-12-13 12:11:31,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 19 transitions, 72 flow [2022-12-13 12:11:31,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 19 transitions, 71 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:11:31,483 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 45 flow [2022-12-13 12:11:31,484 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=45, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2022-12-13 12:11:31,487 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, -1 predicate places. [2022-12-13 12:11:31,487 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 45 flow [2022-12-13 12:11:31,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:31,487 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:11:31,487 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 12:11:31,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:11:31,488 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-12-13 12:11:31,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:31,488 INFO L85 PathProgramCache]: Analyzing trace with hash 9502563, now seen corresponding path program 1 times [2022-12-13 12:11:31,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:31,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794869609] [2022-12-13 12:11:31,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:31,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:31,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:31,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:31,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794869609] [2022-12-13 12:11:31,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794869609] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:11:31,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:11:31,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:11:31,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174126191] [2022-12-13 12:11:31,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:11:31,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:11:31,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:31,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:11:31,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:11:31,565 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 154 [2022-12-13 12:11:31,565 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:31,565 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:11:31,565 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 154 [2022-12-13 12:11:31,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:11:31,621 INFO L130 PetriNetUnfolder]: 149/303 cut-off events. [2022-12-13 12:11:31,621 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 12:11:31,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 303 events. 149/303 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1281 event pairs, 50 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 596. Up to 187 conditions per place. [2022-12-13 12:11:31,624 INFO L137 encePairwiseOnDemand]: 148/154 looper letters, 21 selfloop transitions, 4 changer transitions 0/28 dead transitions. [2022-12-13 12:11:31,624 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 28 transitions, 116 flow [2022-12-13 12:11:31,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:11:31,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:11:31,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 237 transitions. [2022-12-13 12:11:31,626 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.512987012987013 [2022-12-13 12:11:31,626 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 237 transitions. [2022-12-13 12:11:31,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 237 transitions. [2022-12-13 12:11:31,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:11:31,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 237 transitions. [2022-12-13 12:11:31,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:31,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:31,630 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:31,631 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 45 flow. Second operand 3 states and 237 transitions. [2022-12-13 12:11:31,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 28 transitions, 116 flow [2022-12-13 12:11:31,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 28 transitions, 116 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 12:11:31,632 INFO L231 Difference]: Finished difference. Result has 28 places, 21 transitions, 73 flow [2022-12-13 12:11:31,633 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=28, PETRI_TRANSITIONS=21} [2022-12-13 12:11:31,633 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2022-12-13 12:11:31,633 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 21 transitions, 73 flow [2022-12-13 12:11:31,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:31,634 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:11:31,634 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 12:11:31,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:11:31,634 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-12-13 12:11:31,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:31,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1934791002, now seen corresponding path program 1 times [2022-12-13 12:11:31,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:31,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428607131] [2022-12-13 12:11:31,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:31,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:11:31,665 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:11:31,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:11:31,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:11:31,700 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:11:31,701 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2022-12-13 12:11:31,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2022-12-13 12:11:31,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2022-12-13 12:11:31,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2022-12-13 12:11:31,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2022-12-13 12:11:31,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 9 remaining) [2022-12-13 12:11:31,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2022-12-13 12:11:31,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2022-12-13 12:11:31,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2022-12-13 12:11:31,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:11:31,705 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 12:11:31,708 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 12:11:31,708 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-13 12:11:31,726 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 12:11:31,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions, 252 flow [2022-12-13 12:11:31,747 INFO L130 PetriNetUnfolder]: 4/130 cut-off events. [2022-12-13 12:11:31,747 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 12:11:31,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 130 events. 4/130 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 224 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 139. Up to 6 conditions per place. [2022-12-13 12:11:31,748 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 114 transitions, 252 flow [2022-12-13 12:11:31,749 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 97 transitions, 209 flow [2022-12-13 12:11:31,749 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 12:11:31,749 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 97 transitions, 209 flow [2022-12-13 12:11:31,750 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 97 transitions, 209 flow [2022-12-13 12:11:31,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 97 transitions, 209 flow [2022-12-13 12:11:31,765 INFO L130 PetriNetUnfolder]: 4/130 cut-off events. [2022-12-13 12:11:31,766 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 12:11:31,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 130 events. 4/130 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 224 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 108. Up to 6 conditions per place. [2022-12-13 12:11:31,769 INFO L119 LiptonReduction]: Number of co-enabled transitions 3130 [2022-12-13 12:11:33,165 INFO L134 LiptonReduction]: Checked pairs total: 8179 [2022-12-13 12:11:33,165 INFO L136 LiptonReduction]: Total number of compositions: 75 [2022-12-13 12:11:33,166 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:11:33,167 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;@6cafd3bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:11:33,167 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-12-13 12:11:33,168 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 12:11:33,168 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:11:33,168 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:11:33,168 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 12:11:33,168 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-12-13 12:11:33,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:33,168 INFO L85 PathProgramCache]: Analyzing trace with hash 532, now seen corresponding path program 1 times [2022-12-13 12:11:33,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:33,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727632732] [2022-12-13 12:11:33,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:33,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:33,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:33,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:33,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727632732] [2022-12-13 12:11:33,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727632732] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:11:33,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:11:33,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 12:11:33,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410145706] [2022-12-13 12:11:33,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:11:33,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:11:33,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:33,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:11:33,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:11:33,178 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 189 [2022-12-13 12:11:33,178 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 31 transitions, 77 flow. Second operand has 2 states, 2 states have (on average 105.5) internal successors, (211), 2 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:33,178 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:11:33,178 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 189 [2022-12-13 12:11:33,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:11:33,279 INFO L130 PetriNetUnfolder]: 621/1395 cut-off events. [2022-12-13 12:11:33,280 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2022-12-13 12:11:33,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2448 conditions, 1395 events. 621/1395 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 9314 event pairs, 621 based on Foata normal form. 0/1219 useless extension candidates. Maximal degree in co-relation 2437. Up to 959 conditions per place. [2022-12-13 12:11:33,285 INFO L137 encePairwiseOnDemand]: 188/189 looper letters, 17 selfloop transitions, 0 changer transitions 0/30 dead transitions. [2022-12-13 12:11:33,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 30 transitions, 109 flow [2022-12-13 12:11:33,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:11:33,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 12:11:33,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 228 transitions. [2022-12-13 12:11:33,287 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6031746031746031 [2022-12-13 12:11:33,287 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 228 transitions. [2022-12-13 12:11:33,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 228 transitions. [2022-12-13 12:11:33,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:11:33,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 228 transitions. [2022-12-13 12:11:33,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 114.0) internal successors, (228), 2 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:33,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:33,289 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:33,289 INFO L175 Difference]: Start difference. First operand has 39 places, 31 transitions, 77 flow. Second operand 2 states and 228 transitions. [2022-12-13 12:11:33,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 30 transitions, 109 flow [2022-12-13 12:11:33,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 30 transitions, 106 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 12:11:33,290 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 72 flow [2022-12-13 12:11:33,290 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=72, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2022-12-13 12:11:33,290 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, -1 predicate places. [2022-12-13 12:11:33,290 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 72 flow [2022-12-13 12:11:33,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 105.5) internal successors, (211), 2 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:33,291 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:11:33,291 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 12:11:33,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:11:33,291 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-12-13 12:11:33,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:33,292 INFO L85 PathProgramCache]: Analyzing trace with hash 16299093, now seen corresponding path program 1 times [2022-12-13 12:11:33,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:33,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701792641] [2022-12-13 12:11:33,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:33,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:33,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:33,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:33,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701792641] [2022-12-13 12:11:33,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701792641] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:11:33,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:11:33,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:11:33,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313617728] [2022-12-13 12:11:33,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:11:33,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:11:33,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:33,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:11:33,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:11:33,340 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 189 [2022-12-13 12:11:33,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:33,341 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:11:33,341 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 189 [2022-12-13 12:11:33,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:11:33,579 INFO L130 PetriNetUnfolder]: 2437/3989 cut-off events. [2022-12-13 12:11:33,579 INFO L131 PetriNetUnfolder]: For 89/89 co-relation queries the response was YES. [2022-12-13 12:11:33,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7839 conditions, 3989 events. 2437/3989 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 24351 event pairs, 913 based on Foata normal form. 0/3487 useless extension candidates. Maximal degree in co-relation 7834. Up to 2317 conditions per place. [2022-12-13 12:11:33,595 INFO L137 encePairwiseOnDemand]: 178/189 looper letters, 35 selfloop transitions, 8 changer transitions 0/49 dead transitions. [2022-12-13 12:11:33,595 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 49 transitions, 204 flow [2022-12-13 12:11:33,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:11:33,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:11:33,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 316 transitions. [2022-12-13 12:11:33,597 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5573192239858906 [2022-12-13 12:11:33,597 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 316 transitions. [2022-12-13 12:11:33,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 316 transitions. [2022-12-13 12:11:33,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:11:33,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 316 transitions. [2022-12-13 12:11:33,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:33,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:33,599 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:33,599 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 72 flow. Second operand 3 states and 316 transitions. [2022-12-13 12:11:33,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 49 transitions, 204 flow [2022-12-13 12:11:33,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 49 transitions, 204 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 12:11:33,600 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 142 flow [2022-12-13 12:11:33,600 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2022-12-13 12:11:33,601 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 3 predicate places. [2022-12-13 12:11:33,601 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 142 flow [2022-12-13 12:11:33,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:33,601 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:11:33,601 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:11:33,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 12:11:33,602 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-12-13 12:11:33,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:33,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1841250200, now seen corresponding path program 1 times [2022-12-13 12:11:33,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:33,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405835961] [2022-12-13 12:11:33,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:33,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:33,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:33,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:33,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405835961] [2022-12-13 12:11:33,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405835961] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:11:33,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:11:33,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:11:33,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393468532] [2022-12-13 12:11:33,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:11:33,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:11:33,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:33,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:11:33,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:11:33,667 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 189 [2022-12-13 12:11:33,668 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:33,668 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:11:33,668 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 189 [2022-12-13 12:11:33,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:11:33,928 INFO L130 PetriNetUnfolder]: 2469/4221 cut-off events. [2022-12-13 12:11:33,928 INFO L131 PetriNetUnfolder]: For 1684/1704 co-relation queries the response was YES. [2022-12-13 12:11:33,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10205 conditions, 4221 events. 2469/4221 cut-off events. For 1684/1704 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 27201 event pairs, 1520 based on Foata normal form. 0/3680 useless extension candidates. Maximal degree in co-relation 10198. Up to 3158 conditions per place. [2022-12-13 12:11:33,947 INFO L137 encePairwiseOnDemand]: 183/189 looper letters, 33 selfloop transitions, 9 changer transitions 0/54 dead transitions. [2022-12-13 12:11:33,947 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 54 transitions, 287 flow [2022-12-13 12:11:33,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:11:33,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:11:33,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 315 transitions. [2022-12-13 12:11:33,948 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2022-12-13 12:11:33,948 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 315 transitions. [2022-12-13 12:11:33,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 315 transitions. [2022-12-13 12:11:33,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:11:33,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 315 transitions. [2022-12-13 12:11:33,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:33,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:33,951 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:33,951 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 142 flow. Second operand 3 states and 315 transitions. [2022-12-13 12:11:33,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 54 transitions, 287 flow [2022-12-13 12:11:33,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 54 transitions, 263 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:11:33,959 INFO L231 Difference]: Finished difference. Result has 43 places, 45 transitions, 195 flow [2022-12-13 12:11:33,959 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=195, PETRI_PLACES=43, PETRI_TRANSITIONS=45} [2022-12-13 12:11:33,960 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 4 predicate places. [2022-12-13 12:11:33,960 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 45 transitions, 195 flow [2022-12-13 12:11:33,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:33,960 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:11:33,961 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:11:33,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 12:11:33,961 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-12-13 12:11:33,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:33,961 INFO L85 PathProgramCache]: Analyzing trace with hash 157528272, now seen corresponding path program 1 times [2022-12-13 12:11:33,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:33,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634699745] [2022-12-13 12:11:33,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:33,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:11:33,972 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:11:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:11:33,981 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:11:33,981 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:11:33,981 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2022-12-13 12:11:33,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2022-12-13 12:11:33,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2022-12-13 12:11:33,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2022-12-13 12:11:33,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2022-12-13 12:11:33,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 12 remaining) [2022-12-13 12:11:33,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2022-12-13 12:11:33,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2022-12-13 12:11:33,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2022-12-13 12:11:33,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2022-12-13 12:11:33,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2022-12-13 12:11:33,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2022-12-13 12:11:33,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 12:11:33,983 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 12:11:33,987 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-12-13 12:11:33,987 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:11:34,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:11:34 BasicIcfg [2022-12-13 12:11:34,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:11:34,009 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:11:34,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:11:34,009 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:11:34,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:11:29" (3/4) ... [2022-12-13 12:11:34,012 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:11:34,012 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:11:34,012 INFO L158 Benchmark]: Toolchain (without parser) took 5100.22ms. Allocated memory was 115.3MB in the beginning and 172.0MB in the end (delta: 56.6MB). Free memory was 82.7MB in the beginning and 58.4MB in the end (delta: 24.2MB). Peak memory consumption was 82.7MB. Max. memory is 16.1GB. [2022-12-13 12:11:34,013 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 115.3MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:11:34,013 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.48ms. Allocated memory is still 115.3MB. Free memory was 82.3MB in the beginning and 63.1MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 12:11:34,013 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.81ms. Allocated memory is still 115.3MB. Free memory was 63.1MB in the beginning and 61.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:11:34,013 INFO L158 Benchmark]: Boogie Preprocessor took 15.93ms. Allocated memory is still 115.3MB. Free memory was 61.0MB in the beginning and 59.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:11:34,014 INFO L158 Benchmark]: RCFGBuilder took 301.53ms. Allocated memory was 115.3MB in the beginning and 172.0MB in the end (delta: 56.6MB). Free memory was 59.7MB in the beginning and 142.6MB in the end (delta: -83.0MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2022-12-13 12:11:34,014 INFO L158 Benchmark]: TraceAbstraction took 4455.85ms. Allocated memory is still 172.0MB. Free memory was 142.0MB in the beginning and 58.4MB in the end (delta: 83.5MB). Peak memory consumption was 83.7MB. Max. memory is 16.1GB. [2022-12-13 12:11:34,014 INFO L158 Benchmark]: Witness Printer took 2.70ms. Allocated memory is still 172.0MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:11:34,015 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 115.3MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.48ms. Allocated memory is still 115.3MB. Free memory was 82.3MB in the beginning and 63.1MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.81ms. Allocated memory is still 115.3MB. Free memory was 63.1MB in the beginning and 61.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.93ms. Allocated memory is still 115.3MB. Free memory was 61.0MB in the beginning and 59.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 301.53ms. Allocated memory was 115.3MB in the beginning and 172.0MB in the end (delta: 56.6MB). Free memory was 59.7MB in the beginning and 142.6MB in the end (delta: -83.0MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4455.85ms. Allocated memory is still 172.0MB. Free memory was 142.0MB in the beginning and 58.4MB in the end (delta: 83.5MB). Peak memory consumption was 83.7MB. Max. memory is 16.1GB. * Witness Printer took 2.70ms. Allocated memory is still 172.0MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 86 PlacesBefore, 26 PlacesAfterwards, 82 TransitionsBefore, 20 TransitionsAfterwards, 1700 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 71 TotalNumberOfCompositions, 2931 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1895, independent: 1778, independent conditional: 0, independent unconditional: 1778, dependent: 117, dependent conditional: 0, dependent unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 909, independent: 890, independent conditional: 0, independent unconditional: 890, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1895, independent: 888, independent conditional: 0, independent unconditional: 888, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 909, unknown conditional: 0, unknown unconditional: 909] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 51, Positive conditional cache size: 0, Positive unconditional cache size: 51, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4s, 103 PlacesBefore, 39 PlacesAfterwards, 97 TransitionsBefore, 31 TransitionsAfterwards, 3130 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 75 TotalNumberOfCompositions, 8179 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3326, independent: 3098, independent conditional: 0, independent unconditional: 3098, dependent: 228, dependent conditional: 0, dependent unconditional: 228, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1556, independent: 1521, independent conditional: 0, independent unconditional: 1521, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3326, independent: 1577, independent conditional: 0, independent unconditional: 1577, dependent: 193, dependent conditional: 0, dependent unconditional: 193, unknown: 1556, unknown conditional: 0, unknown unconditional: 1556] , Statistics on independence cache: Total cache size (in pairs): 113, Positive cache size: 95, Positive conditional cache size: 0, Positive unconditional cache size: 95, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 699]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int x; [L709] 0 pthread_t t1, t2; [L710] 0 int i; [L711] 0 x = 0 [L712] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=52, argc=52, argv={50:49}, argv={50:49}, pthread_create(&t1, 0, thr1, 0)=-2, t1={5:0}, t2={3:0}, x=0] [L713] 0 i = 0 VAL [\old(argc)=52, argc=52, argv={50:49}, argv={50:49}, i=0, t1={5:0}, t2={3:0}, x=0] [L699] 1 x <= 50 VAL [arg={0:0}, arg={0:0}, x=0] [L713] COND TRUE 0 i < 50 [L714] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(argc)=52, arg={0:0}, argc=52, argv={50:49}, argv={50:49}, i=0, pthread_create(&t2, 0, thr2, 0)=-1, t1={5:0}, t2={3:0}, x=0] [L703] 2 int t; [L704] 2 t = x VAL [arg={0:0}, arg={0:0}, t=0, x=0] [L705] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, t=0, x=1, x = t + 1=51] [L699] 1 x <= 50 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t=0, x=1, x = t + 1=51] Now there is a data race on ~x~0 between C: x = t + 1 [705] and C: x <= 50 [699] - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 113 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 59 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=2, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 143 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 109 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 160 IncrementalHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 8 mSDtfsCounter, 160 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=195occurred in iteration=3, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 12:11:34,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a2aea95-f159-4b39-80b6-d9f83e7131e4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE