./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 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_fec93d21-6b8c-4768-bd38-e697d5f863f8/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fec93d21-6b8c-4768-bd38-e697d5f863f8/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fec93d21-6b8c-4768-bd38-e697d5f863f8/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fec93d21-6b8c-4768-bd38-e697d5f863f8/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fec93d21-6b8c-4768-bd38-e697d5f863f8/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fec93d21-6b8c-4768-bd38-e697d5f863f8/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 50de8acec85b0b2508f1f33521d9ab6717fa1b5141d6b9e2d08fcb4af894112b --- 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-4e7fbc6 [2022-11-23 13:40:50,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:40:50,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:40:50,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:40:50,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:40:50,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:40:50,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:40:50,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:40:50,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:40:50,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:40:50,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:40:50,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:40:50,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:40:50,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:40:50,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:40:50,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:40:50,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:40:50,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:40:50,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:40:50,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:40:50,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:40:50,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:40:50,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:40:50,087 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:40:50,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:40:50,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:40:50,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:40:50,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:40:50,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:40:50,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:40:50,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:40:50,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:40:50,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:40:50,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:40:50,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:40:50,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:40:50,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:40:50,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:40:50,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:40:50,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:40:50,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:40:50,117 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fec93d21-6b8c-4768-bd38-e697d5f863f8/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 13:40:50,156 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:40:50,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:40:50,157 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:40:50,157 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:40:50,158 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:40:50,158 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:40:50,159 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:40:50,159 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:40:50,159 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:40:50,159 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:40:50,160 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:40:50,160 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:40:50,161 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:40:50,161 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:40:50,161 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:40:50,161 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:40:50,161 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:40:50,161 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:40:50,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:40:50,163 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 13:40:50,163 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 13:40:50,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:40:50,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 13:40:50,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:40:50,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:40:50,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:40:50,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:40:50,164 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 13:40:50,165 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 13:40:50,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:40:50,165 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:40:50,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:40:50,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:40:50,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:40:50,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:40:50,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:40:50,166 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:40:50,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:40:50,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:40:50,167 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:40:50,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:40:50,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:40:50,167 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:40:50,167 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_fec93d21-6b8c-4768-bd38-e697d5f863f8/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fec93d21-6b8c-4768-bd38-e697d5f863f8/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50de8acec85b0b2508f1f33521d9ab6717fa1b5141d6b9e2d08fcb4af894112b [2022-11-23 13:40:50,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:40:50,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:40:50,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:40:50,512 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:40:50,512 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:40:50,514 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fec93d21-6b8c-4768-bd38-e697d5f863f8/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i [2022-11-23 13:40:53,595 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:40:53,868 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:40:53,869 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fec93d21-6b8c-4768-bd38-e697d5f863f8/sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i [2022-11-23 13:40:53,886 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fec93d21-6b8c-4768-bd38-e697d5f863f8/bin/utaipan-Q6hlc19bkW/data/7f952c415/387d5d89cc584a2faf63e1c5e9ff16d1/FLAGbf318ad6c [2022-11-23 13:40:53,910 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fec93d21-6b8c-4768-bd38-e697d5f863f8/bin/utaipan-Q6hlc19bkW/data/7f952c415/387d5d89cc584a2faf63e1c5e9ff16d1 [2022-11-23 13:40:53,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:40:53,914 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:40:53,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:40:53,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:40:53,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:40:53,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:40:53" (1/1) ... [2022-11-23 13:40:53,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c2bf555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:53, skipping insertion in model container [2022-11-23 13:40:53,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:40:53" (1/1) ... [2022-11-23 13:40:53,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:40:54,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:40:54,413 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_fec93d21-6b8c-4768-bd38-e697d5f863f8/sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i[30176,30189] [2022-11-23 13:40:54,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:40:54,475 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:40:54,527 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_fec93d21-6b8c-4768-bd38-e697d5f863f8/sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i[30176,30189] [2022-11-23 13:40:54,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:40:54,596 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:40:54,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:54 WrapperNode [2022-11-23 13:40:54,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:40:54,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:40:54,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:40:54,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:40:54,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:54" (1/1) ... [2022-11-23 13:40:54,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:54" (1/1) ... [2022-11-23 13:40:54,687 INFO L138 Inliner]: procedures = 172, calls = 37, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 238 [2022-11-23 13:40:54,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:40:54,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:40:54,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:40:54,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:40:54,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:54" (1/1) ... [2022-11-23 13:40:54,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:54" (1/1) ... [2022-11-23 13:40:54,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:54" (1/1) ... [2022-11-23 13:40:54,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:54" (1/1) ... [2022-11-23 13:40:54,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:54" (1/1) ... [2022-11-23 13:40:54,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:54" (1/1) ... [2022-11-23 13:40:54,739 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:54" (1/1) ... [2022-11-23 13:40:54,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:54" (1/1) ... [2022-11-23 13:40:54,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:40:54,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:40:54,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:40:54,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:40:54,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:54" (1/1) ... [2022-11-23 13:40:54,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:40:54,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fec93d21-6b8c-4768-bd38-e697d5f863f8/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:40:54,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fec93d21-6b8c-4768-bd38-e697d5f863f8/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:40:54,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fec93d21-6b8c-4768-bd38-e697d5f863f8/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:40:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 13:40:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-23 13:40:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-23 13:40:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 13:40:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 13:40:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 13:40:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 13:40:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-23 13:40:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-23 13:40:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 13:40:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 13:40:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:40:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:40:54,838 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 13:40:55,054 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:40:55,056 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:40:55,466 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:40:55,476 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:40:55,476 INFO L300 CfgBuilder]: Removed 24 assume(true) statements. [2022-11-23 13:40:55,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:40:55 BoogieIcfgContainer [2022-11-23 13:40:55,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:40:55,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:40:55,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:40:55,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:40:55,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:40:53" (1/3) ... [2022-11-23 13:40:55,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a50c529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:40:55, skipping insertion in model container [2022-11-23 13:40:55,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:54" (2/3) ... [2022-11-23 13:40:55,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a50c529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:40:55, skipping insertion in model container [2022-11-23 13:40:55,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:40:55" (3/3) ... [2022-11-23 13:40:55,488 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_04-munge_racefree.i [2022-11-23 13:40:55,497 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 13:40:55,508 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:40:55,508 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-23 13:40:55,508 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 13:40:55,610 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-23 13:40:55,655 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 13:40:55,684 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 231 places, 258 transitions, 538 flow [2022-11-23 13:40:55,693 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 231 places, 258 transitions, 538 flow [2022-11-23 13:40:55,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 231 places, 258 transitions, 538 flow [2022-11-23 13:40:55,943 INFO L130 PetriNetUnfolder]: 58/476 cut-off events. [2022-11-23 13:40:55,944 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-23 13:40:55,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 476 events. 58/476 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2361 event pairs, 0 based on Foata normal form. 0/389 useless extension candidates. Maximal degree in co-relation 257. Up to 8 conditions per place. [2022-11-23 13:40:55,981 INFO L119 LiptonReduction]: Number of co-enabled transitions 29100 [2022-11-23 13:41:02,202 INFO L134 LiptonReduction]: Checked pairs total: 88279 [2022-11-23 13:41:02,203 INFO L136 LiptonReduction]: Total number of compositions: 216 [2022-11-23 13:41:02,215 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 88 places, 109 transitions, 240 flow [2022-11-23 13:41:02,787 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 12303 states, 12037 states have (on average 3.5135000415385895) internal successors, (42292), 12302 states have internal predecessors, (42292), 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) [2022-11-23 13:41:02,811 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:41:02,819 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=FINITE_AUTOMATA, 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;@5433b2e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:41:02,819 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-11-23 13:41:02,869 INFO L276 IsEmpty]: Start isEmpty. Operand has 12303 states, 12037 states have (on average 3.5135000415385895) internal successors, (42292), 12302 states have internal predecessors, (42292), 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) [2022-11-23 13:41:02,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 13:41:02,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:41:02,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 13:41:02,875 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-23 13:41:02,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:41:02,883 INFO L85 PathProgramCache]: Analyzing trace with hash 31643429, now seen corresponding path program 1 times [2022-11-23 13:41:02,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:41:02,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900005458] [2022-11-23 13:41:02,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:02,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:41:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:03,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:41:03,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:41:03,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900005458] [2022-11-23 13:41:03,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900005458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:41:03,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:41:03,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:41:03,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744165035] [2022-11-23 13:41:03,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:41:03,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:41:03,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:41:03,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:41:03,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:41:03,233 INFO L87 Difference]: Start difference. First operand has 12303 states, 12037 states have (on average 3.5135000415385895) internal successors, (42292), 12302 states have internal predecessors, (42292), 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-23 13:41:03,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:41:03,558 INFO L93 Difference]: Finished difference Result 9995 states and 28270 transitions. [2022-11-23 13:41:03,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:41:03,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-11-23 13:41:03,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:41:03,643 INFO L225 Difference]: With dead ends: 9995 [2022-11-23 13:41:03,644 INFO L226 Difference]: Without dead ends: 9699 [2022-11-23 13:41:03,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:41:03,648 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 34 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:41:03,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 74 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:41:03,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9699 states. [2022-11-23 13:41:04,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9699 to 9699. [2022-11-23 13:41:04,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9699 states, 9542 states have (on average 2.872249004401593) internal successors, (27407), 9698 states have internal predecessors, (27407), 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) [2022-11-23 13:41:04,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9699 states to 9699 states and 27407 transitions. [2022-11-23 13:41:04,174 INFO L78 Accepts]: Start accepts. Automaton has 9699 states and 27407 transitions. Word has length 4 [2022-11-23 13:41:04,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:41:04,177 INFO L495 AbstractCegarLoop]: Abstraction has 9699 states and 27407 transitions. [2022-11-23 13:41:04,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-23 13:41:04,178 INFO L276 IsEmpty]: Start isEmpty. Operand 9699 states and 27407 transitions. [2022-11-23 13:41:04,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 13:41:04,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:41:04,179 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-23 13:41:04,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 13:41:04,180 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-23 13:41:04,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:41:04,181 INFO L85 PathProgramCache]: Analyzing trace with hash 326905370, now seen corresponding path program 1 times [2022-11-23 13:41:04,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:41:04,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931130412] [2022-11-23 13:41:04,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:04,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:41:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 13:41:04,301 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 13:41:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 13:41:04,341 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 13:41:04,341 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 13:41:04,343 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2022-11-23 13:41:04,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2022-11-23 13:41:04,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2022-11-23 13:41:04,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2022-11-23 13:41:04,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2022-11-23 13:41:04,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2022-11-23 13:41:04,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2022-11-23 13:41:04,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2022-11-23 13:41:04,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 24 remaining) [2022-11-23 13:41:04,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2022-11-23 13:41:04,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2022-11-23 13:41:04,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2022-11-23 13:41:04,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2022-11-23 13:41:04,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2022-11-23 13:41:04,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2022-11-23 13:41:04,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2022-11-23 13:41:04,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2022-11-23 13:41:04,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2022-11-23 13:41:04,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2022-11-23 13:41:04,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2022-11-23 13:41:04,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2022-11-23 13:41:04,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2022-11-23 13:41:04,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2022-11-23 13:41:04,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2022-11-23 13:41:04,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 13:41:04,371 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 13:41:04,374 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-23 13:41:04,374 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-23 13:41:04,433 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-23 13:41:04,439 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 13:41:04,439 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 363 places, 414 transitions, 876 flow [2022-11-23 13:41:04,439 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 363 places, 414 transitions, 876 flow [2022-11-23 13:41:04,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 363 places, 414 transitions, 876 flow [2022-11-23 13:41:05,056 INFO L130 PetriNetUnfolder]: 197/1425 cut-off events. [2022-11-23 13:41:05,057 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-23 13:41:05,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1522 conditions, 1425 events. 197/1425 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 9388 event pairs, 1 based on Foata normal form. 0/1169 useless extension candidates. Maximal degree in co-relation 859. Up to 32 conditions per place. [2022-11-23 13:41:05,233 INFO L119 LiptonReduction]: Number of co-enabled transitions 106200 [2022-11-23 13:41:13,761 INFO L134 LiptonReduction]: Checked pairs total: 400695 [2022-11-23 13:41:13,762 INFO L136 LiptonReduction]: Total number of compositions: 327 [2022-11-23 13:41:13,764 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 158 places, 204 transitions, 456 flow