./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-1_3b-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e017d-32ad-49f5-96d2-16e035bc3bc5/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e017d-32ad-49f5-96d2-16e035bc3bc5/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e017d-32ad-49f5-96d2-16e035bc3bc5/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e017d-32ad-49f5-96d2-16e035bc3bc5/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_3b-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e017d-32ad-49f5-96d2-16e035bc3bc5/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e017d-32ad-49f5-96d2-16e035bc3bc5/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c73b137d4d055d601e6891c370b9da4780621da8a7fc8a5ca4886c6b3b685d8b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 21:06:32,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:06:32,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:06:32,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:06:32,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:06:32,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:06:32,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:06:32,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:06:32,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:06:32,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:06:32,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:06:32,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:06:32,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:06:32,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:06:32,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:06:32,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:06:32,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:06:32,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:06:32,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:06:32,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:06:32,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:06:32,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:06:32,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:06:32,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:06:32,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:06:32,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:06:32,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:06:32,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:06:32,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:06:32,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:06:32,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:06:32,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:06:32,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:06:32,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:06:32,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:06:32,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:06:32,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:06:32,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:06:32,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:06:32,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:06:32,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:06:32,876 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e017d-32ad-49f5-96d2-16e035bc3bc5/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 21:06:32,916 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:06:32,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:06:32,916 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:06:32,916 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:06:32,917 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:06:32,917 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:06:32,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:06:32,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:06:32,921 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:06:32,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:06:32,923 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:06:32,923 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 21:06:32,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:06:32,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:06:32,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:06:32,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:06:32,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:06:32,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:06:32,924 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 21:06:32,924 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:06:32,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:06:32,925 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:06:32,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:06:32,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:06:32,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:06:32,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:06:32,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:06:32,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:06:32,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:06:32,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:06:32,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:06:32,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:06:32,929 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:06:32,929 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:06:32,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:06:32,929 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e017d-32ad-49f5-96d2-16e035bc3bc5/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e017d-32ad-49f5-96d2-16e035bc3bc5/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c73b137d4d055d601e6891c370b9da4780621da8a7fc8a5ca4886c6b3b685d8b [2022-11-18 21:06:33,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:06:33,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:06:33,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:06:33,215 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:06:33,216 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:06:33,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e017d-32ad-49f5-96d2-16e035bc3bc5/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-races/race-1_3b-join.i [2022-11-18 21:06:33,302 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e017d-32ad-49f5-96d2-16e035bc3bc5/bin/uautomizer-TMbwUNV5ro/data/e36a7ca8b/ab794b060ac0494d90edc3359cf0eab7/FLAG9e7de6218 [2022-11-18 21:06:33,835 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:06:33,836 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e017d-32ad-49f5-96d2-16e035bc3bc5/sv-benchmarks/c/ldv-races/race-1_3b-join.i [2022-11-18 21:06:33,857 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e017d-32ad-49f5-96d2-16e035bc3bc5/bin/uautomizer-TMbwUNV5ro/data/e36a7ca8b/ab794b060ac0494d90edc3359cf0eab7/FLAG9e7de6218 [2022-11-18 21:06:34,090 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e017d-32ad-49f5-96d2-16e035bc3bc5/bin/uautomizer-TMbwUNV5ro/data/e36a7ca8b/ab794b060ac0494d90edc3359cf0eab7 [2022-11-18 21:06:34,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:06:34,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:06:34,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:06:34,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:06:34,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:06:34,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:06:34" (1/1) ... [2022-11-18 21:06:34,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ac3e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:34, skipping insertion in model container [2022-11-18 21:06:34,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:06:34" (1/1) ... [2022-11-18 21:06:34,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:06:34,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:06:34,901 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e017d-32ad-49f5-96d2-16e035bc3bc5/sv-benchmarks/c/ldv-races/race-1_3b-join.i[76069,76082] [2022-11-18 21:06:34,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:06:34,939 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:06:34,981 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e017d-32ad-49f5-96d2-16e035bc3bc5/sv-benchmarks/c/ldv-races/race-1_3b-join.i[76069,76082] [2022-11-18 21:06:34,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:06:35,110 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:06:35,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:35 WrapperNode [2022-11-18 21:06:35,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:06:35,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:06:35,112 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:06:35,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:06:35,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:35" (1/1) ... [2022-11-18 21:06:35,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:35" (1/1) ... [2022-11-18 21:06:35,209 INFO L138 Inliner]: procedures = 480, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2022-11-18 21:06:35,209 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:06:35,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:06:35,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:06:35,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:06:35,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:35" (1/1) ... [2022-11-18 21:06:35,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:35" (1/1) ... [2022-11-18 21:06:35,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:35" (1/1) ... [2022-11-18 21:06:35,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:35" (1/1) ... [2022-11-18 21:06:35,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:35" (1/1) ... [2022-11-18 21:06:35,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:35" (1/1) ... [2022-11-18 21:06:35,242 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:35" (1/1) ... [2022-11-18 21:06:35,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:35" (1/1) ... [2022-11-18 21:06:35,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:06:35,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:06:35,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:06:35,252 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:06:35,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:35" (1/1) ... [2022-11-18 21:06:35,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:06:35,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e017d-32ad-49f5-96d2-16e035bc3bc5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:06:35,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e017d-32ad-49f5-96d2-16e035bc3bc5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:06:35,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e017d-32ad-49f5-96d2-16e035bc3bc5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:06:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:06:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 21:06:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 21:06:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:06:35,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 21:06:35,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:06:35,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:06:35,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:06:35,344 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 21:06:35,344 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 21:06:35,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 21:06:35,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:06:35,346 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 21:06:35,707 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:06:35,709 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:06:36,008 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:06:36,016 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:06:36,016 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 21:06:36,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:06:36 BoogieIcfgContainer [2022-11-18 21:06:36,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:06:36,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:06:36,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:06:36,024 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:06:36,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:06:34" (1/3) ... [2022-11-18 21:06:36,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a41fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:06:36, skipping insertion in model container [2022-11-18 21:06:36,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:35" (2/3) ... [2022-11-18 21:06:36,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a41fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:06:36, skipping insertion in model container [2022-11-18 21:06:36,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:06:36" (3/3) ... [2022-11-18 21:06:36,028 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_3b-join.i [2022-11-18 21:06:36,037 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 21:06:36,047 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:06:36,047 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-18 21:06:36,047 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 21:06:36,132 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 21:06:36,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 153 transitions, 314 flow [2022-11-18 21:06:36,271 INFO L130 PetriNetUnfolder]: 6/191 cut-off events. [2022-11-18 21:06:36,272 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 21:06:36,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 191 events. 6/191 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 258 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 111. Up to 4 conditions per place. [2022-11-18 21:06:36,277 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 153 transitions, 314 flow [2022-11-18 21:06:36,287 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 139 transitions, 284 flow [2022-11-18 21:06:36,310 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:06:36,320 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;@7b8fc08f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:06:36,321 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-18 21:06:36,332 INFO L130 PetriNetUnfolder]: 0/30 cut-off events. [2022-11-18 21:06:36,332 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 21:06:36,332 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:06:36,333 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:36,334 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-18 21:06:36,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:36,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1236331543, now seen corresponding path program 1 times [2022-11-18 21:06:36,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:36,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002846574] [2022-11-18 21:06:36,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:36,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:36,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:06:36,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:36,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002846574] [2022-11-18 21:06:36,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002846574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:36,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:36,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:06:36,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378834321] [2022-11-18 21:06:36,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:36,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:06:36,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:36,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:06:36,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:06:36,887 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 153 [2022-11-18 21:06:36,892 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 139 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:36,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:06:36,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 153 [2022-11-18 21:06:36,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:06:37,072 INFO L130 PetriNetUnfolder]: 18/254 cut-off events. [2022-11-18 21:06:37,072 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 21:06:37,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 254 events. 18/254 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 739 event pairs, 18 based on Foata normal form. 7/222 useless extension candidates. Maximal degree in co-relation 182. Up to 71 conditions per place. [2022-11-18 21:06:37,078 INFO L137 encePairwiseOnDemand]: 147/153 looper letters, 28 selfloop transitions, 2 changer transitions 2/132 dead transitions. [2022-11-18 21:06:37,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 132 transitions, 330 flow [2022-11-18 21:06:37,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:06:37,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:06:37,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2022-11-18 21:06:37,102 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8126361655773421 [2022-11-18 21:06:37,103 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2022-11-18 21:06:37,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2022-11-18 21:06:37,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:06:37,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2022-11-18 21:06:37,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:37,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:37,129 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:37,131 INFO L175 Difference]: Start difference. First operand has 139 places, 139 transitions, 284 flow. Second operand 3 states and 373 transitions. [2022-11-18 21:06:37,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 132 transitions, 330 flow [2022-11-18 21:06:37,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 132 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:06:37,141 INFO L231 Difference]: Finished difference. Result has 135 places, 130 transitions, 266 flow [2022-11-18 21:06:37,144 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=135, PETRI_TRANSITIONS=130} [2022-11-18 21:06:37,148 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, -4 predicate places. [2022-11-18 21:06:37,148 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 130 transitions, 266 flow [2022-11-18 21:06:37,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:37,149 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:06:37,149 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:37,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:06:37,149 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-18 21:06:37,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:37,150 INFO L85 PathProgramCache]: Analyzing trace with hash -2086232022, now seen corresponding path program 1 times [2022-11-18 21:06:37,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:37,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128313326] [2022-11-18 21:06:37,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:37,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:37,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:06:37,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:37,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128313326] [2022-11-18 21:06:37,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128313326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:37,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:37,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:06:37,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276875102] [2022-11-18 21:06:37,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:37,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:06:37,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:37,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:06:37,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:06:37,237 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 153 [2022-11-18 21:06:37,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 130 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:37,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:06:37,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 153 [2022-11-18 21:06:37,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:06:37,318 INFO L130 PetriNetUnfolder]: 19/268 cut-off events. [2022-11-18 21:06:37,318 INFO L131 PetriNetUnfolder]: For 3/6 co-relation queries the response was YES. [2022-11-18 21:06:37,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 268 events. 19/268 cut-off events. For 3/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 841 event pairs, 8 based on Foata normal form. 2/236 useless extension candidates. Maximal degree in co-relation 307. Up to 49 conditions per place. [2022-11-18 21:06:37,320 INFO L137 encePairwiseOnDemand]: 140/153 looper letters, 21 selfloop transitions, 8 changer transitions 3/134 dead transitions. [2022-11-18 21:06:37,320 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 134 transitions, 337 flow [2022-11-18 21:06:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:06:37,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:06:37,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2022-11-18 21:06:37,322 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8344226579520697 [2022-11-18 21:06:37,322 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2022-11-18 21:06:37,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2022-11-18 21:06:37,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:06:37,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2022-11-18 21:06:37,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:37,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:37,326 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:37,327 INFO L175 Difference]: Start difference. First operand has 135 places, 130 transitions, 266 flow. Second operand 3 states and 383 transitions. [2022-11-18 21:06:37,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 134 transitions, 337 flow [2022-11-18 21:06:37,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 134 transitions, 333 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:06:37,331 INFO L231 Difference]: Finished difference. Result has 132 places, 128 transitions, 300 flow [2022-11-18 21:06:37,331 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=132, PETRI_TRANSITIONS=128} [2022-11-18 21:06:37,332 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, -7 predicate places. [2022-11-18 21:06:37,332 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 128 transitions, 300 flow [2022-11-18 21:06:37,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:37,333 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:06:37,333 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:37,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:06:37,334 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-18 21:06:37,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:37,334 INFO L85 PathProgramCache]: Analyzing trace with hash -636609286, now seen corresponding path program 1 times [2022-11-18 21:06:37,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:37,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429659148] [2022-11-18 21:06:37,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:37,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:37,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:37,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:06:37,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:37,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429659148] [2022-11-18 21:06:37,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429659148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:37,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:37,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:06:37,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489475144] [2022-11-18 21:06:37,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:37,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:06:37,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:37,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:06:37,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:06:37,421 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 153 [2022-11-18 21:06:37,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 128 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:37,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:06:37,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 153 [2022-11-18 21:06:37,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:06:37,523 INFO L130 PetriNetUnfolder]: 19/264 cut-off events. [2022-11-18 21:06:37,523 INFO L131 PetriNetUnfolder]: For 49/56 co-relation queries the response was YES. [2022-11-18 21:06:37,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 264 events. 19/264 cut-off events. For 49/56 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 835 event pairs, 12 based on Foata normal form. 0/235 useless extension candidates. Maximal degree in co-relation 67. Up to 71 conditions per place. [2022-11-18 21:06:37,525 INFO L137 encePairwiseOnDemand]: 150/153 looper letters, 26 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2022-11-18 21:06:37,525 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 127 transitions, 354 flow [2022-11-18 21:06:37,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:06:37,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:06:37,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2022-11-18 21:06:37,527 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7930283224400871 [2022-11-18 21:06:37,527 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 364 transitions. [2022-11-18 21:06:37,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 364 transitions. [2022-11-18 21:06:37,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:06:37,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 364 transitions. [2022-11-18 21:06:37,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:37,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:37,531 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:37,532 INFO L175 Difference]: Start difference. First operand has 132 places, 128 transitions, 300 flow. Second operand 3 states and 364 transitions. [2022-11-18 21:06:37,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 127 transitions, 354 flow [2022-11-18 21:06:37,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 127 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:06:37,537 INFO L231 Difference]: Finished difference. Result has 128 places, 127 transitions, 286 flow [2022-11-18 21:06:37,537 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=128, PETRI_TRANSITIONS=127} [2022-11-18 21:06:37,538 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, -11 predicate places. [2022-11-18 21:06:37,538 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 127 transitions, 286 flow [2022-11-18 21:06:37,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:37,539 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:06:37,539 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:37,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 21:06:37,539 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-18 21:06:37,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:37,540 INFO L85 PathProgramCache]: Analyzing trace with hash 286638800, now seen corresponding path program 1 times [2022-11-18 21:06:37,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:37,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588975355] [2022-11-18 21:06:37,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:37,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:37,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:06:37,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:37,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588975355] [2022-11-18 21:06:37,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588975355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:37,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:37,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:06:37,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110712599] [2022-11-18 21:06:37,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:37,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:06:37,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:37,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:06:37,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:06:37,689 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 153 [2022-11-18 21:06:37,690 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 127 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:37,690 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:06:37,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 153 [2022-11-18 21:06:37,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:06:37,812 INFO L130 PetriNetUnfolder]: 35/327 cut-off events. [2022-11-18 21:06:37,812 INFO L131 PetriNetUnfolder]: For 29/38 co-relation queries the response was YES. [2022-11-18 21:06:37,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 327 events. 35/327 cut-off events. For 29/38 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1245 event pairs, 11 based on Foata normal form. 3/294 useless extension candidates. Maximal degree in co-relation 411. Up to 78 conditions per place. [2022-11-18 21:06:37,817 INFO L137 encePairwiseOnDemand]: 147/153 looper letters, 30 selfloop transitions, 6 changer transitions 6/136 dead transitions. [2022-11-18 21:06:37,817 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 136 transitions, 386 flow [2022-11-18 21:06:37,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:06:37,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:06:37,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 374 transitions. [2022-11-18 21:06:37,819 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8148148148148148 [2022-11-18 21:06:37,819 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 374 transitions. [2022-11-18 21:06:37,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 374 transitions. [2022-11-18 21:06:37,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:06:37,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 374 transitions. [2022-11-18 21:06:37,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:37,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:37,827 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:37,827 INFO L175 Difference]: Start difference. First operand has 128 places, 127 transitions, 286 flow. Second operand 3 states and 374 transitions. [2022-11-18 21:06:37,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 136 transitions, 386 flow [2022-11-18 21:06:37,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 136 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:06:37,833 INFO L231 Difference]: Finished difference. Result has 130 places, 125 transitions, 316 flow [2022-11-18 21:06:37,834 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=130, PETRI_TRANSITIONS=125} [2022-11-18 21:06:37,835 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, -9 predicate places. [2022-11-18 21:06:37,836 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 125 transitions, 316 flow [2022-11-18 21:06:37,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:37,842 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:06:37,842 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:37,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 21:06:37,843 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-18 21:06:37,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:37,845 INFO L85 PathProgramCache]: Analyzing trace with hash -808682465, now seen corresponding path program 1 times [2022-11-18 21:06:37,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:37,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900701978] [2022-11-18 21:06:37,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:37,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:37,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:06:37,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:37,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900701978] [2022-11-18 21:06:37,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900701978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:37,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:37,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:06:37,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698599022] [2022-11-18 21:06:37,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:37,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:06:37,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:37,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:06:37,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:06:37,978 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 153 [2022-11-18 21:06:37,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 125 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:37,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:06:37,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 153 [2022-11-18 21:06:37,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:06:38,085 INFO L130 PetriNetUnfolder]: 30/331 cut-off events. [2022-11-18 21:06:38,085 INFO L131 PetriNetUnfolder]: For 83/85 co-relation queries the response was YES. [2022-11-18 21:06:38,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 331 events. 30/331 cut-off events. For 83/85 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1347 event pairs, 9 based on Foata normal form. 0/308 useless extension candidates. Maximal degree in co-relation 65. Up to 80 conditions per place. [2022-11-18 21:06:38,087 INFO L137 encePairwiseOnDemand]: 148/153 looper letters, 31 selfloop transitions, 6 changer transitions 0/131 dead transitions. [2022-11-18 21:06:38,088 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 131 transitions, 416 flow [2022-11-18 21:06:38,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:06:38,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:06:38,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2022-11-18 21:06:38,089 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.803921568627451 [2022-11-18 21:06:38,090 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 369 transitions. [2022-11-18 21:06:38,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 369 transitions. [2022-11-18 21:06:38,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:06:38,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 369 transitions. [2022-11-18 21:06:38,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:38,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:38,093 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:38,093 INFO L175 Difference]: Start difference. First operand has 130 places, 125 transitions, 316 flow. Second operand 3 states and 369 transitions. [2022-11-18 21:06:38,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 131 transitions, 416 flow [2022-11-18 21:06:38,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 131 transitions, 400 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:06:38,105 INFO L231 Difference]: Finished difference. Result has 126 places, 128 transitions, 346 flow [2022-11-18 21:06:38,106 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=126, PETRI_TRANSITIONS=128} [2022-11-18 21:06:38,109 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, -13 predicate places. [2022-11-18 21:06:38,110 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 128 transitions, 346 flow [2022-11-18 21:06:38,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:38,110 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:06:38,111 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:38,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 21:06:38,111 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-18 21:06:38,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:38,113 INFO L85 PathProgramCache]: Analyzing trace with hash -258432009, now seen corresponding path program 1 times [2022-11-18 21:06:38,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:38,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103498939] [2022-11-18 21:06:38,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:38,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:38,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:06:38,199 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:06:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:06:38,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:06:38,276 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 21:06:38,278 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2022-11-18 21:06:38,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2022-11-18 21:06:38,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2022-11-18 21:06:38,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2022-11-18 21:06:38,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2022-11-18 21:06:38,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2022-11-18 21:06:38,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2022-11-18 21:06:38,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2022-11-18 21:06:38,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2022-11-18 21:06:38,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2022-11-18 21:06:38,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2022-11-18 21:06:38,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2022-11-18 21:06:38,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 21:06:38,287 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-18 21:06:38,294 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 21:06:38,294 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:06:38,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:06:38 BasicIcfg [2022-11-18 21:06:38,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:06:38,359 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:06:38,359 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:06:38,359 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:06:38,359 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:06:36" (3/4) ... [2022-11-18 21:06:38,362 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 21:06:38,362 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:06:38,363 INFO L158 Benchmark]: Toolchain (without parser) took 4268.67ms. Allocated memory was 130.0MB in the beginning and 176.2MB in the end (delta: 46.1MB). Free memory was 92.3MB in the beginning and 133.5MB in the end (delta: -41.2MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2022-11-18 21:06:38,364 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory was 62.9MB in the beginning and 62.8MB in the end (delta: 31.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:06:38,364 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1014.09ms. Allocated memory is still 130.0MB. Free memory was 92.0MB in the beginning and 62.0MB in the end (delta: 30.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-18 21:06:38,365 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.41ms. Allocated memory is still 130.0MB. Free memory was 62.0MB in the beginning and 58.6MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:06:38,365 INFO L158 Benchmark]: Boogie Preprocessor took 40.41ms. Allocated memory is still 130.0MB. Free memory was 58.6MB in the beginning and 55.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 21:06:38,365 INFO L158 Benchmark]: RCFGBuilder took 767.43ms. Allocated memory is still 130.0MB. Free memory was 55.7MB in the beginning and 91.0MB in the end (delta: -35.3MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2022-11-18 21:06:38,366 INFO L158 Benchmark]: TraceAbstraction took 2337.46ms. Allocated memory was 130.0MB in the beginning and 176.2MB in the end (delta: 46.1MB). Free memory was 89.7MB in the beginning and 133.5MB in the end (delta: -43.7MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2022-11-18 21:06:38,366 INFO L158 Benchmark]: Witness Printer took 3.93ms. Allocated memory is still 176.2MB. Free memory is still 133.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:06:38,372 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory was 62.9MB in the beginning and 62.8MB in the end (delta: 31.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1014.09ms. Allocated memory is still 130.0MB. Free memory was 92.0MB in the beginning and 62.0MB in the end (delta: 30.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.41ms. Allocated memory is still 130.0MB. Free memory was 62.0MB in the beginning and 58.6MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.41ms. Allocated memory is still 130.0MB. Free memory was 58.6MB in the beginning and 55.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 767.43ms. Allocated memory is still 130.0MB. Free memory was 55.7MB in the beginning and 91.0MB in the end (delta: -35.3MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2337.46ms. Allocated memory was 130.0MB in the beginning and 176.2MB in the end (delta: 46.1MB). Free memory was 89.7MB in the beginning and 133.5MB in the end (delta: -43.7MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. * Witness Printer took 3.93ms. Allocated memory is still 176.2MB. Free memory is still 133.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1699]: Data race detected Data race detected The following path leads to a data race: [L1695] 0 pthread_mutex_t mutex; VAL [mutex={3:0}] [L1696] 0 int pdev; VAL [mutex={3:0}, pdev=0] [L1694] 0 pthread_t t1; VAL [mutex={3:0}, pdev=0, t1={4:0}] [L1726] CALL, EXPR 0 module_init() [L1705] 0 pdev = 1 VAL [mutex={3:0}, pdev=1, t1={4:0}] [L1706] EXPR 0 pdev==1 VAL [mutex={3:0}, pdev=1, t1={4:0}] [L1706] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={3:0}, pdev=1, t1={4:0}] [L1706] RET 0 ldv_assert(pdev==1) [L1707] COND TRUE 0 __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, mutex={3:0}, pdev=1, t1={4:0}] [L1708] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={3:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={4:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1={4:0}] [L1709] 0 return 0; VAL [\result=0, arg={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1={4:0}] [L1726] RET, EXPR 0 module_init() [L1726] COND FALSE 0 !(module_init()!=0) VAL [arg={0:0}, arg={0:0}, module_init()=0, mutex={3:0}, pdev=6, t1={4:0}] [L1727] CALL 0 module_exit() [L1717] 0 void *status; VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=6, status={5:0}, t1={4:0}] [L1718] 0 pdev = 4 VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=4, status={5:0}, t1={4:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=4, pdev = 6=1154, t1={4:0}] [L1718] 0 pdev = 4 VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=4, pdev = 4=1151, pdev = 6=1154, status={5:0}, t1={4:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=4, pdev = 6=1154, t1={4:0}] Now there is a data race on ~pdev~0 between C: pdev = 4 [1718] and C: pdev = 6 [1699] - UnprovableResult [Line: 1705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1708]: 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 3 procedures, 162 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: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 110 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 139 IncrementalHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 110 mSDtfsCounter, 139 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=346occurred in iteration=5, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 296 NumberOfCodeBlocks, 296 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 233 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2022-11-18 21:06:38,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026e017d-32ad-49f5-96d2-16e035bc3bc5/bin/uautomizer-TMbwUNV5ro/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