./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.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_bcb08c4a-9c73-41d3-8db1-78a85b57c611/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb08c4a-9c73-41d3-8db1-78a85b57c611/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_bcb08c4a-9c73-41d3-8db1-78a85b57c611/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb08c4a-9c73-41d3-8db1-78a85b57c611/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb08c4a-9c73-41d3-8db1-78a85b57c611/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_bcb08c4a-9c73-41d3-8db1-78a85b57c611/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 3937112f59473340c79cc2d7ab59a9fe9e4faa83d54303e5490f5452d86b21aa --- 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 14:59:29,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:59:29,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:59:29,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:59:29,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:59:29,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:59:29,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:59:29,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:59:29,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:59:29,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:59:29,768 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:59:29,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:59:29,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:59:29,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:59:29,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:59:29,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:59:29,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:59:29,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:59:29,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:59:29,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:59:29,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:59:29,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:59:29,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:59:29,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:59:29,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:59:29,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:59:29,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:59:29,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:59:29,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:59:29,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:59:29,810 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:59:29,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:59:29,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:59:29,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:59:29,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:59:29,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:59:29,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:59:29,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:59:29,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:59:29,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:59:29,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:59:29,824 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb08c4a-9c73-41d3-8db1-78a85b57c611/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 14:59:29,863 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:59:29,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:59:29,864 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:59:29,865 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:59:29,866 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:59:29,866 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:59:29,866 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:59:29,866 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:59:29,867 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:59:29,867 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:59:29,868 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:59:29,868 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:59:29,868 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:59:29,869 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:59:29,869 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:59:29,869 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:59:29,869 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:59:29,870 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:59:29,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:59:29,871 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:59:29,871 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:59:29,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:59:29,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:59:29,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:59:29,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:59:29,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:59:29,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:59:29,873 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 14:59:29,874 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:59:29,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:59:29,874 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:59:29,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:59:29,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:59:29,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:59:29,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:59:29,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:59:29,876 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:59:29,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:59:29,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:59:29,877 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:59:29,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:59:29,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:59:29,878 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:59:29,878 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_bcb08c4a-9c73-41d3-8db1-78a85b57c611/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb08c4a-9c73-41d3-8db1-78a85b57c611/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3937112f59473340c79cc2d7ab59a9fe9e4faa83d54303e5490f5452d86b21aa [2022-11-23 14:59:30,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:59:30,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:59:30,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:59:30,290 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:59:30,291 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:59:30,292 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb08c4a-9c73-41d3-8db1-78a85b57c611/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i [2022-11-23 14:59:33,472 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:59:33,812 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:59:33,813 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb08c4a-9c73-41d3-8db1-78a85b57c611/sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i [2022-11-23 14:59:33,866 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb08c4a-9c73-41d3-8db1-78a85b57c611/bin/utaipan-Q6hlc19bkW/data/a8d19d774/2de73987b65e4826bf3513c4f93b5cdf/FLAGaf19a43a6 [2022-11-23 14:59:33,900 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb08c4a-9c73-41d3-8db1-78a85b57c611/bin/utaipan-Q6hlc19bkW/data/a8d19d774/2de73987b65e4826bf3513c4f93b5cdf [2022-11-23 14:59:33,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:59:33,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:59:33,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:59:33,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:59:33,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:59:33,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:59:33" (1/1) ... [2022-11-23 14:59:33,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12488c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:33, skipping insertion in model container [2022-11-23 14:59:33,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:59:33" (1/1) ... [2022-11-23 14:59:33,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:59:33,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:59:34,348 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_bcb08c4a-9c73-41d3-8db1-78a85b57c611/sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i[30807,30820] [2022-11-23 14:59:34,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:59:34,365 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:59:34,404 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_bcb08c4a-9c73-41d3-8db1-78a85b57c611/sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i[30807,30820] [2022-11-23 14:59:34,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:59:34,443 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:59:34,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:34 WrapperNode [2022-11-23 14:59:34,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:59:34,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:59:34,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:59:34,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:59:34,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:34" (1/1) ... [2022-11-23 14:59:34,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:34" (1/1) ... [2022-11-23 14:59:34,506 INFO L138 Inliner]: procedures = 175, calls = 36, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 281 [2022-11-23 14:59:34,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:59:34,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:59:34,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:59:34,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:59:34,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:34" (1/1) ... [2022-11-23 14:59:34,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:34" (1/1) ... [2022-11-23 14:59:34,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:34" (1/1) ... [2022-11-23 14:59:34,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:34" (1/1) ... [2022-11-23 14:59:34,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:34" (1/1) ... [2022-11-23 14:59:34,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:34" (1/1) ... [2022-11-23 14:59:34,560 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:34" (1/1) ... [2022-11-23 14:59:34,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:34" (1/1) ... [2022-11-23 14:59:34,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:59:34,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:59:34,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:59:34,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:59:34,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:34" (1/1) ... [2022-11-23 14:59:34,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:59:34,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb08c4a-9c73-41d3-8db1-78a85b57c611/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:59:34,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb08c4a-9c73-41d3-8db1-78a85b57c611/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:59:34,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb08c4a-9c73-41d3-8db1-78a85b57c611/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:59:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:59:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-23 14:59:34,670 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-23 14:59:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-23 14:59:34,671 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-23 14:59:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:59:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:59:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:59:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:59:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:59:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:59:34,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:59:34,675 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 14:59:34,900 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:59:34,903 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:59:35,583 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:59:36,032 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:59:36,033 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 14:59:36,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:59:36 BoogieIcfgContainer [2022-11-23 14:59:36,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:59:36,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:59:36,039 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:59:36,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:59:36,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:59:33" (1/3) ... [2022-11-23 14:59:36,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a4b9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:59:36, skipping insertion in model container [2022-11-23 14:59:36,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:34" (2/3) ... [2022-11-23 14:59:36,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a4b9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:59:36, skipping insertion in model container [2022-11-23 14:59:36,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:59:36" (3/3) ... [2022-11-23 14:59:36,049 INFO L112 eAbstractionObserver]: Analyzing ICFG 33_double_lock_p1_vs.i [2022-11-23 14:59:36,058 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 14:59:36,069 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:59:36,071 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-23 14:59:36,071 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 14:59:36,169 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 14:59:36,213 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:59:36,237 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 108 transitions, 226 flow [2022-11-23 14:59:36,242 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 108 transitions, 226 flow [2022-11-23 14:59:36,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 108 transitions, 226 flow [2022-11-23 14:59:36,330 INFO L130 PetriNetUnfolder]: 7/118 cut-off events. [2022-11-23 14:59:36,330 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 14:59:36,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 118 events. 7/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 316 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 97. Up to 4 conditions per place. [2022-11-23 14:59:36,342 INFO L119 LiptonReduction]: Number of co-enabled transitions 4188 [2022-11-23 15:03:03,789 INFO L134 LiptonReduction]: Checked pairs total: 12306 [2022-11-23 15:03:03,789 INFO L136 LiptonReduction]: Total number of compositions: 129 [2022-11-23 15:03:03,799 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 54 transitions, 118 flow [2022-11-23 15:03:03,920 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2480 states, 2095 states have (on average 3.341288782816229) internal successors, (7000), 2479 states have internal predecessors, (7000), 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 15:03:03,944 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:03:03,952 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;@7b5f389f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:03:03,952 INFO L358 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2022-11-23 15:03:03,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 2480 states, 2095 states have (on average 3.341288782816229) internal successors, (7000), 2479 states have internal predecessors, (7000), 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 15:03:03,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 15:03:03,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:03,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 15:03:03,968 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-23 15:03:03,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:03,977 INFO L85 PathProgramCache]: Analyzing trace with hash 32689702, now seen corresponding path program 1 times [2022-11-23 15:03:03,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:03,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967362200] [2022-11-23 15:03:03,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:03,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:04,218 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 15:03:04,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:04,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967362200] [2022-11-23 15:03:04,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967362200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:03:04,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:03:04,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 15:03:04,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631195322] [2022-11-23 15:03:04,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:03:04,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:03:04,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:04,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:03:04,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:03:04,262 INFO L87 Difference]: Start difference. First operand has 2480 states, 2095 states have (on average 3.341288782816229) internal successors, (7000), 2479 states have internal predecessors, (7000), 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 2 states, 1 states have (on average 4.0) 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 15:03:04,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:04,490 INFO L93 Difference]: Finished difference Result 387 states and 1036 transitions. [2022-11-23 15:03:04,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:03:04,493 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) 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 15:03:04,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:04,506 INFO L225 Difference]: With dead ends: 387 [2022-11-23 15:03:04,506 INFO L226 Difference]: Without dead ends: 387 [2022-11-23 15:03:04,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:03:04,510 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:04,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:03:04,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-11-23 15:03:04,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2022-11-23 15:03:04,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 385 states have (on average 2.690909090909091) internal successors, (1036), 386 states have internal predecessors, (1036), 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 15:03:04,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 1036 transitions. [2022-11-23 15:03:04,607 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 1036 transitions. Word has length 4 [2022-11-23 15:03:04,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:04,608 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 1036 transitions. [2022-11-23 15:03:04,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) 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 15:03:04,608 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 1036 transitions. [2022-11-23 15:03:04,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 15:03:04,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:04,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 15:03:04,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:03:04,609 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-23 15:03:04,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:04,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1013380688, now seen corresponding path program 1 times [2022-11-23 15:03:04,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:04,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217894400] [2022-11-23 15:03:04,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:04,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:04,779 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 15:03:04,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:04,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217894400] [2022-11-23 15:03:04,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217894400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:03:04,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:03:04,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:03:04,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954967339] [2022-11-23 15:03:04,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:03:04,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:03:04,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:04,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:03:04,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:03:04,782 INFO L87 Difference]: Start difference. First operand 387 states and 1036 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 15:03:05,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:05,102 INFO L93 Difference]: Finished difference Result 532 states and 1401 transitions. [2022-11-23 15:03:05,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:03:05,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-11-23 15:03:05,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:05,107 INFO L225 Difference]: With dead ends: 532 [2022-11-23 15:03:05,107 INFO L226 Difference]: Without dead ends: 532 [2022-11-23 15:03:05,107 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 15:03:05,108 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 15 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:05,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 9 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:03:05,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2022-11-23 15:03:05,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 397. [2022-11-23 15:03:05,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 395 states have (on average 2.6632911392405063) internal successors, (1052), 396 states have internal predecessors, (1052), 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 15:03:05,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 1052 transitions. [2022-11-23 15:03:05,133 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 1052 transitions. Word has length 5 [2022-11-23 15:03:05,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:05,133 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 1052 transitions. [2022-11-23 15:03:05,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 15:03:05,133 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 1052 transitions. [2022-11-23 15:03:05,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 15:03:05,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:05,134 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-23 15:03:05,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:03:05,142 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-23 15:03:05,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:05,143 INFO L85 PathProgramCache]: Analyzing trace with hash 2084771988, now seen corresponding path program 1 times [2022-11-23 15:03:05,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:05,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203480819] [2022-11-23 15:03:05,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:05,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:03:05,194 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:03:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:03:05,246 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:03:05,251 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:03:05,255 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 54 remaining) [2022-11-23 15:03:05,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (52 of 54 remaining) [2022-11-23 15:03:05,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (51 of 54 remaining) [2022-11-23 15:03:05,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (50 of 54 remaining) [2022-11-23 15:03:05,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (49 of 54 remaining) [2022-11-23 15:03:05,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (48 of 54 remaining) [2022-11-23 15:03:05,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (47 of 54 remaining) [2022-11-23 15:03:05,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (46 of 54 remaining) [2022-11-23 15:03:05,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (45 of 54 remaining) [2022-11-23 15:03:05,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (44 of 54 remaining) [2022-11-23 15:03:05,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (43 of 54 remaining) [2022-11-23 15:03:05,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (42 of 54 remaining) [2022-11-23 15:03:05,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (41 of 54 remaining) [2022-11-23 15:03:05,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (40 of 54 remaining) [2022-11-23 15:03:05,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (39 of 54 remaining) [2022-11-23 15:03:05,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (38 of 54 remaining) [2022-11-23 15:03:05,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (37 of 54 remaining) [2022-11-23 15:03:05,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (36 of 54 remaining) [2022-11-23 15:03:05,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 54 remaining) [2022-11-23 15:03:05,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 54 remaining) [2022-11-23 15:03:05,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (33 of 54 remaining) [2022-11-23 15:03:05,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (32 of 54 remaining) [2022-11-23 15:03:05,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 54 remaining) [2022-11-23 15:03:05,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 54 remaining) [2022-11-23 15:03:05,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (29 of 54 remaining) [2022-11-23 15:03:05,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 54 remaining) [2022-11-23 15:03:05,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 54 remaining) [2022-11-23 15:03:05,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 54 remaining) [2022-11-23 15:03:05,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (25 of 54 remaining) [2022-11-23 15:03:05,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (24 of 54 remaining) [2022-11-23 15:03:05,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (23 of 54 remaining) [2022-11-23 15:03:05,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (22 of 54 remaining) [2022-11-23 15:03:05,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (21 of 54 remaining) [2022-11-23 15:03:05,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (20 of 54 remaining) [2022-11-23 15:03:05,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (19 of 54 remaining) [2022-11-23 15:03:05,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (18 of 54 remaining) [2022-11-23 15:03:05,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (17 of 54 remaining) [2022-11-23 15:03:05,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (16 of 54 remaining) [2022-11-23 15:03:05,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (15 of 54 remaining) [2022-11-23 15:03:05,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (14 of 54 remaining) [2022-11-23 15:03:05,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (13 of 54 remaining) [2022-11-23 15:03:05,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (12 of 54 remaining) [2022-11-23 15:03:05,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (11 of 54 remaining) [2022-11-23 15:03:05,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (10 of 54 remaining) [2022-11-23 15:03:05,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 54 remaining) [2022-11-23 15:03:05,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 54 remaining) [2022-11-23 15:03:05,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 54 remaining) [2022-11-23 15:03:05,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 54 remaining) [2022-11-23 15:03:05,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 54 remaining) [2022-11-23 15:03:05,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 54 remaining) [2022-11-23 15:03:05,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 54 remaining) [2022-11-23 15:03:05,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (2 of 54 remaining) [2022-11-23 15:03:05,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 54 remaining) [2022-11-23 15:03:05,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 54 remaining) [2022-11-23 15:03:05,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:03:05,287 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-23 15:03:05,289 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-23 15:03:05,289 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-23 15:03:05,369 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 15:03:05,381 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 15:03:05,381 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 176 transitions, 376 flow [2022-11-23 15:03:05,382 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 176 transitions, 376 flow [2022-11-23 15:03:05,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 176 transitions, 376 flow [2022-11-23 15:03:05,461 INFO L130 PetriNetUnfolder]: 9/168 cut-off events. [2022-11-23 15:03:05,462 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 15:03:05,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 168 events. 9/168 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 552 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 177. Up to 6 conditions per place. [2022-11-23 15:03:05,476 INFO L119 LiptonReduction]: Number of co-enabled transitions 10080 [2022-11-23 15:07:11,861 WARN L233 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 143 DAG size of output: 136 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:07:22,522 WARN L233 SmtUtils]: Spent 8.30s on a formula simplification. DAG size of input: 164 DAG size of output: 155 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:07:34,066 INFO L134 LiptonReduction]: Checked pairs total: 39062 [2022-11-23 15:07:34,066 INFO L136 LiptonReduction]: Total number of compositions: 244 [2022-11-23 15:07:34,067 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 95 transitions, 214 flow [2022-11-23 15:07:37,462 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 71619 states, 65060 states have (on average 4.241177374731017) internal successors, (275931), 71618 states have internal predecessors, (275931), 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 15:07:37,465 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:07:37,467 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;@7b5f389f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:07:37,467 INFO L358 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2022-11-23 15:07:37,568 INFO L276 IsEmpty]: Start isEmpty. Operand has 71619 states, 65060 states have (on average 4.241177374731017) internal successors, (275931), 71618 states have internal predecessors, (275931), 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 15:07:37,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 15:07:37,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:37,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 15:07:37,570 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-23 15:07:37,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:37,575 INFO L85 PathProgramCache]: Analyzing trace with hash 47626015, now seen corresponding path program 1 times [2022-11-23 15:07:37,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:37,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576021591] [2022-11-23 15:07:37,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:37,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:37,624 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 15:07:37,639 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:07:37,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576021591] [2022-11-23 15:07:37,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576021591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:07:37,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:07:37,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 15:07:37,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040154614] [2022-11-23 15:07:37,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:07:37,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:07:37,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:07:37,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:07:37,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:07:38,057 INFO L87 Difference]: Start difference. First operand has 71619 states, 65060 states have (on average 4.241177374731017) internal successors, (275931), 71618 states have internal predecessors, (275931), 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 2 states, 1 states have (on average 4.0) 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 15:07:38,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:38,341 INFO L93 Difference]: Finished difference Result 3918 states and 14522 transitions. [2022-11-23 15:07:38,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:07:38,342 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) 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 15:07:38,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:38,380 INFO L225 Difference]: With dead ends: 3918 [2022-11-23 15:07:38,380 INFO L226 Difference]: Without dead ends: 3918 [2022-11-23 15:07:38,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:07:38,385 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:38,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:07:38,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3918 states. [2022-11-23 15:07:38,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3918 to 3918. [2022-11-23 15:07:38,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3918 states, 3916 states have (on average 3.708375893769152) internal successors, (14522), 3917 states have internal predecessors, (14522), 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 15:07:38,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3918 states to 3918 states and 14522 transitions. [2022-11-23 15:07:38,663 INFO L78 Accepts]: Start accepts. Automaton has 3918 states and 14522 transitions. Word has length 4 [2022-11-23 15:07:38,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:38,664 INFO L495 AbstractCegarLoop]: Abstraction has 3918 states and 14522 transitions. [2022-11-23 15:07:38,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) 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 15:07:38,664 INFO L276 IsEmpty]: Start isEmpty. Operand 3918 states and 14522 transitions. [2022-11-23 15:07:38,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 15:07:38,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:38,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 15:07:38,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:07:38,665 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-23 15:07:38,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:38,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1476406205, now seen corresponding path program 1 times [2022-11-23 15:07:38,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:38,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922468375] [2022-11-23 15:07:38,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:38,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:38,758 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 15:07:38,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:07:38,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922468375] [2022-11-23 15:07:38,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922468375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:07:38,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:07:38,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:07:38,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132859498] [2022-11-23 15:07:38,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:07:38,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:07:38,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:07:38,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:07:38,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:07:38,761 INFO L87 Difference]: Start difference. First operand 3918 states and 14522 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 15:07:39,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:39,364 INFO L93 Difference]: Finished difference Result 6217 states and 22841 transitions. [2022-11-23 15:07:39,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:07:39,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-11-23 15:07:39,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:39,413 INFO L225 Difference]: With dead ends: 6217 [2022-11-23 15:07:39,413 INFO L226 Difference]: Without dead ends: 6217 [2022-11-23 15:07:39,414 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 15:07:39,415 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 22 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:39,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 23 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 15:07:39,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6217 states. [2022-11-23 15:07:39,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6217 to 4386. [2022-11-23 15:07:39,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4386 states, 4384 states have (on average 3.6875) internal successors, (16166), 4385 states have internal predecessors, (16166), 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 15:07:39,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4386 states to 4386 states and 16166 transitions. [2022-11-23 15:07:39,713 INFO L78 Accepts]: Start accepts. Automaton has 4386 states and 16166 transitions. Word has length 5 [2022-11-23 15:07:39,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:39,714 INFO L495 AbstractCegarLoop]: Abstraction has 4386 states and 16166 transitions. [2022-11-23 15:07:39,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 15:07:39,714 INFO L276 IsEmpty]: Start isEmpty. Operand 4386 states and 16166 transitions. [2022-11-23 15:07:39,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 15:07:39,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:39,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:07:39,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:07:39,717 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-23 15:07:39,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:39,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1572004051, now seen corresponding path program 1 times [2022-11-23 15:07:39,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:39,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193328717] [2022-11-23 15:07:39,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:39,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:40,472 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 15:07:40,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:07:40,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193328717] [2022-11-23 15:07:40,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193328717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:07:40,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:07:40,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:07:40,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908966062] [2022-11-23 15:07:40,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:07:40,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:07:40,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:07:40,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:07:40,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:07:40,476 INFO L87 Difference]: Start difference. First operand 4386 states and 16166 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 15:07:41,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:41,173 INFO L93 Difference]: Finished difference Result 5459 states and 18570 transitions. [2022-11-23 15:07:41,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:07:41,174 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-11-23 15:07:41,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:41,215 INFO L225 Difference]: With dead ends: 5459 [2022-11-23 15:07:41,215 INFO L226 Difference]: Without dead ends: 5459 [2022-11-23 15:07:41,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:07:41,216 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 70 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:41,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 42 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 15:07:41,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5459 states. [2022-11-23 15:07:41,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5459 to 4704. [2022-11-23 15:07:41,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4704 states, 4702 states have (on average 3.4774564015312635) internal successors, (16351), 4703 states have internal predecessors, (16351), 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 15:07:41,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4704 states to 4704 states and 16351 transitions. [2022-11-23 15:07:41,445 INFO L78 Accepts]: Start accepts. Automaton has 4704 states and 16351 transitions. Word has length 11 [2022-11-23 15:07:41,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:41,445 INFO L495 AbstractCegarLoop]: Abstraction has 4704 states and 16351 transitions. [2022-11-23 15:07:41,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 15:07:41,446 INFO L276 IsEmpty]: Start isEmpty. Operand 4704 states and 16351 transitions. [2022-11-23 15:07:41,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 15:07:41,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:41,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:07:41,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:07:41,456 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-23 15:07:41,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:41,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1572015490, now seen corresponding path program 1 times [2022-11-23 15:07:41,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:41,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252140696] [2022-11-23 15:07:41,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:41,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:07:41,490 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:07:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:07:41,524 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:07:41,524 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:07:41,524 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (79 of 80 remaining) [2022-11-23 15:07:41,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (78 of 80 remaining) [2022-11-23 15:07:41,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (77 of 80 remaining) [2022-11-23 15:07:41,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (76 of 80 remaining) [2022-11-23 15:07:41,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (75 of 80 remaining) [2022-11-23 15:07:41,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (74 of 80 remaining) [2022-11-23 15:07:41,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (73 of 80 remaining) [2022-11-23 15:07:41,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (72 of 80 remaining) [2022-11-23 15:07:41,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (71 of 80 remaining) [2022-11-23 15:07:41,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (70 of 80 remaining) [2022-11-23 15:07:41,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (69 of 80 remaining) [2022-11-23 15:07:41,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (68 of 80 remaining) [2022-11-23 15:07:41,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (67 of 80 remaining) [2022-11-23 15:07:41,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (66 of 80 remaining) [2022-11-23 15:07:41,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (65 of 80 remaining) [2022-11-23 15:07:41,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (64 of 80 remaining) [2022-11-23 15:07:41,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (63 of 80 remaining) [2022-11-23 15:07:41,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (62 of 80 remaining) [2022-11-23 15:07:41,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (61 of 80 remaining) [2022-11-23 15:07:41,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (60 of 80 remaining) [2022-11-23 15:07:41,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (59 of 80 remaining) [2022-11-23 15:07:41,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (58 of 80 remaining) [2022-11-23 15:07:41,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (57 of 80 remaining) [2022-11-23 15:07:41,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (56 of 80 remaining) [2022-11-23 15:07:41,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (55 of 80 remaining) [2022-11-23 15:07:41,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (54 of 80 remaining) [2022-11-23 15:07:41,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (53 of 80 remaining) [2022-11-23 15:07:41,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 80 remaining) [2022-11-23 15:07:41,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 80 remaining) [2022-11-23 15:07:41,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (50 of 80 remaining) [2022-11-23 15:07:41,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (49 of 80 remaining) [2022-11-23 15:07:41,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (48 of 80 remaining) [2022-11-23 15:07:41,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (47 of 80 remaining) [2022-11-23 15:07:41,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (46 of 80 remaining) [2022-11-23 15:07:41,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (45 of 80 remaining) [2022-11-23 15:07:41,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (44 of 80 remaining) [2022-11-23 15:07:41,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (43 of 80 remaining) [2022-11-23 15:07:41,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (42 of 80 remaining) [2022-11-23 15:07:41,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (41 of 80 remaining) [2022-11-23 15:07:41,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (40 of 80 remaining) [2022-11-23 15:07:41,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (39 of 80 remaining) [2022-11-23 15:07:41,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (38 of 80 remaining) [2022-11-23 15:07:41,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (37 of 80 remaining) [2022-11-23 15:07:41,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (36 of 80 remaining) [2022-11-23 15:07:41,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (35 of 80 remaining) [2022-11-23 15:07:41,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (34 of 80 remaining) [2022-11-23 15:07:41,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (33 of 80 remaining) [2022-11-23 15:07:41,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (32 of 80 remaining) [2022-11-23 15:07:41,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (31 of 80 remaining) [2022-11-23 15:07:41,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (30 of 80 remaining) [2022-11-23 15:07:41,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (29 of 80 remaining) [2022-11-23 15:07:41,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (28 of 80 remaining) [2022-11-23 15:07:41,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (27 of 80 remaining) [2022-11-23 15:07:41,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (26 of 80 remaining) [2022-11-23 15:07:41,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (25 of 80 remaining) [2022-11-23 15:07:41,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (24 of 80 remaining) [2022-11-23 15:07:41,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (23 of 80 remaining) [2022-11-23 15:07:41,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (22 of 80 remaining) [2022-11-23 15:07:41,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (21 of 80 remaining) [2022-11-23 15:07:41,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (20 of 80 remaining) [2022-11-23 15:07:41,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (19 of 80 remaining) [2022-11-23 15:07:41,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 80 remaining) [2022-11-23 15:07:41,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 80 remaining) [2022-11-23 15:07:41,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 80 remaining) [2022-11-23 15:07:41,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 80 remaining) [2022-11-23 15:07:41,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 80 remaining) [2022-11-23 15:07:41,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (13 of 80 remaining) [2022-11-23 15:07:41,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 80 remaining) [2022-11-23 15:07:41,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (11 of 80 remaining) [2022-11-23 15:07:41,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (10 of 80 remaining) [2022-11-23 15:07:41,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 80 remaining) [2022-11-23 15:07:41,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 80 remaining) [2022-11-23 15:07:41,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 80 remaining) [2022-11-23 15:07:41,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 80 remaining) [2022-11-23 15:07:41,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 80 remaining) [2022-11-23 15:07:41,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 80 remaining) [2022-11-23 15:07:41,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 80 remaining) [2022-11-23 15:07:41,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (2 of 80 remaining) [2022-11-23 15:07:41,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 80 remaining) [2022-11-23 15:07:41,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 80 remaining) [2022-11-23 15:07:41,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:07:41,549 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-23 15:07:41,555 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-11-23 15:07:41,555 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:07:41,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:07:41 BasicIcfg [2022-11-23 15:07:41,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:07:41,632 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:07:41,632 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:07:41,633 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:07:41,633 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:59:36" (3/4) ... [2022-11-23 15:07:41,636 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:07:41,636 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:07:41,637 INFO L158 Benchmark]: Toolchain (without parser) took 487732.06ms. Allocated memory was 148.9MB in the beginning and 3.7GB in the end (delta: 3.6GB). Free memory was 120.1MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 407.9MB. Max. memory is 16.1GB. [2022-11-23 15:07:41,637 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 102.8MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:07:41,637 INFO L158 Benchmark]: CACSL2BoogieTranslator took 536.04ms. Allocated memory is still 148.9MB. Free memory was 120.1MB in the beginning and 99.9MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 15:07:41,638 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.11ms. Allocated memory is still 148.9MB. Free memory was 99.9MB in the beginning and 96.3MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:07:41,638 INFO L158 Benchmark]: Boogie Preprocessor took 73.18ms. Allocated memory is still 148.9MB. Free memory was 96.3MB in the beginning and 92.9MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:07:41,639 INFO L158 Benchmark]: RCFGBuilder took 1454.78ms. Allocated memory is still 148.9MB. Free memory was 92.9MB in the beginning and 88.0MB in the end (delta: 4.9MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2022-11-23 15:07:41,639 INFO L158 Benchmark]: TraceAbstraction took 485592.84ms. Allocated memory was 148.9MB in the beginning and 3.7GB in the end (delta: 3.6GB). Free memory was 86.7MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 374.6MB. Max. memory is 16.1GB. [2022-11-23 15:07:41,640 INFO L158 Benchmark]: Witness Printer took 4.04ms. Allocated memory is still 3.7GB. Free memory is still 3.3GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:07:41,642 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 102.8MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 536.04ms. Allocated memory is still 148.9MB. Free memory was 120.1MB in the beginning and 99.9MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.11ms. Allocated memory is still 148.9MB. Free memory was 99.9MB in the beginning and 96.3MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.18ms. Allocated memory is still 148.9MB. Free memory was 96.3MB in the beginning and 92.9MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1454.78ms. Allocated memory is still 148.9MB. Free memory was 92.9MB in the beginning and 88.0MB in the end (delta: 4.9MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * TraceAbstraction took 485592.84ms. Allocated memory was 148.9MB in the beginning and 3.7GB in the end (delta: 3.6GB). Free memory was 86.7MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 374.6MB. Max. memory is 16.1GB. * Witness Printer took 4.04ms. Allocated memory is still 3.7GB. Free memory is still 3.3GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 207.5s, 108 PlacesBefore, 57 PlacesAfterwards, 108 TransitionsBefore, 54 TransitionsAfterwards, 4188 CoEnabledTransitionPairs, 6 FixpointIterations, 22 TrivialSequentialCompositions, 93 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 3 ChoiceCompositions, 129 TotalNumberOfCompositions, 12306 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6712, independent: 6481, independent conditional: 0, independent unconditional: 6481, dependent: 149, dependent conditional: 0, dependent unconditional: 149, unknown: 82, unknown conditional: 0, unknown unconditional: 82] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3237, independent: 3179, independent conditional: 0, independent unconditional: 3179, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 28, unknown conditional: 0, unknown unconditional: 28] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3237, independent: 2693, independent conditional: 0, independent unconditional: 2693, dependent: 544, dependent conditional: 0, dependent unconditional: 544, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 544, independent: 486, independent conditional: 0, independent unconditional: 486, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 28, unknown conditional: 0, unknown unconditional: 28] , SemanticIndependenceRelation.Query Time [ms]: [ total: 195630, independent: 1165, independent conditional: 0, independent unconditional: 1165, dependent: 339, dependent conditional: 0, dependent unconditional: 339, unknown: 194127, unknown conditional: 0, unknown unconditional: 194127] ], Cache Queries: [ total: 6712, independent: 3302, independent conditional: 0, independent unconditional: 3302, dependent: 119, dependent conditional: 0, dependent unconditional: 119, unknown: 3291, unknown conditional: 0, unknown unconditional: 3291] , Statistics on independence cache: Total cache size (in pairs): 391, Positive cache size: 372, Positive conditional cache size: 0, Positive unconditional cache size: 372, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 9, Unknown conditional cache size: 0, Unknown unconditional cache size: 9 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 268.7s, 175 PlacesBefore, 100 PlacesAfterwards, 176 TransitionsBefore, 95 TransitionsAfterwards, 10080 CoEnabledTransitionPairs, 7 FixpointIterations, 54 TrivialSequentialCompositions, 162 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 16 ConcurrentYvCompositions, 6 ChoiceCompositions, 244 TotalNumberOfCompositions, 39062 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20629, independent: 20239, independent conditional: 0, independent unconditional: 20239, dependent: 310, dependent conditional: 0, dependent unconditional: 310, unknown: 80, unknown conditional: 0, unknown unconditional: 80] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7942, independent: 7854, independent conditional: 0, independent unconditional: 7854, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 31, unknown conditional: 0, unknown unconditional: 31] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7942, independent: 6608, independent conditional: 0, independent unconditional: 6608, dependent: 1334, dependent conditional: 0, dependent unconditional: 1334, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1334, independent: 1246, independent conditional: 0, independent unconditional: 1246, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 31, unknown conditional: 0, unknown unconditional: 31] , SemanticIndependenceRelation.Query Time [ms]: [ total: 211904, independent: 1964, independent conditional: 0, independent unconditional: 1964, dependent: 646, dependent conditional: 0, dependent unconditional: 646, unknown: 209294, unknown conditional: 0, unknown unconditional: 209294] ], Cache Queries: [ total: 20629, independent: 12385, independent conditional: 0, independent unconditional: 12385, dependent: 253, dependent conditional: 0, dependent unconditional: 253, unknown: 7991, unknown conditional: 0, unknown unconditional: 7991] , Statistics on independence cache: Total cache size (in pairs): 1093, Positive cache size: 1063, Positive conditional cache size: 0, Positive unconditional cache size: 1063, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Unknown cache size: 6, Unknown conditional cache size: 0, Unknown unconditional cache size: 6 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 729]: Data race detected Data race detected The following path leads to a data race: [L689] 0 int count = 0; [L708] 0 int mutexa = 0; [L709] 0 int mutexb = 0; [L747] 0 pthread_t t; [L748] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [count=0, mutexa={3:0}, mutexb={4:0}, pthread_create(&t, 0, thr1, 0)=-2, t={5:0}] [L726] COND TRUE 1 1 [L728] CALL 1 __VERIFIER_atomic_acquire(&mutexa) [L692] EXPR 1 \read(*m) [L692] EXPR 1 *m==0 [L692] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L692] RET 1 assume_abort_if_not(*m==0) [L693] 1 *m = 1 [L728] RET 1 __VERIFIER_atomic_acquire(&mutexa) [L729] 1 count >= -1 VAL [#in~arg={0:0}, arg={0:0}, count=0, mutexa={3:0}, mutexb={4:0}] [L749] COND TRUE 0 1 [L751] FCALL, FORK 0 pthread_create(&t, 0, thr2, 0) VAL [count=0, mutexa={3:0}, mutexb={4:0}, pthread_create(&t, 0, thr2, 0)=-1, t={5:0}] [L739] COND FALSE 2 !(__VERIFIER_nondet_int()) [L742] CALL 2 my_thread2() [L719] CALL 2 __VERIFIER_atomic_acquire(&mutexb) [L692] EXPR 2 \read(*m) [L692] EXPR 2 *m==0 [L692] CALL 2 assume_abort_if_not(*m==0) [L4] COND FALSE 2 !(!cond) [L692] RET 2 assume_abort_if_not(*m==0) [L693] 2 *m = 1 [L719] RET 2 __VERIFIER_atomic_acquire(&mutexb) [L720] CALL 2 __VERIFIER_atomic_dec() [L706] 2 count-- [L720] RET 2 __VERIFIER_atomic_dec() [L729] 1 count >= -1 VAL [#in~arg={0:0}, arg={0:0}, count=-1, mutexa={3:0}, mutexb={4:0}] Now there is a data race on ~count~0 between C: count-- [706] and C: count >= -1 [729] - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 731]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 748]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 751]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 167 locations, 54 error locations. Started 1 CEGAR loops. OverallTime: 209.1s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 207.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 76 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 13 mSDtfsCounter, 76 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2480occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 135 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 230 locations, 80 error locations. Started 1 CEGAR loops. OverallTime: 276.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 272.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 77 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 192 IncrementalHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 45 mSDtfsCounter, 192 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71619occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 3 MinimizatonAttempts, 2586 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-23 15:07:41,955 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb08c4a-9c73-41d3-8db1-78a85b57c611/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-23 15:07:42,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcb08c4a-9c73-41d3-8db1-78a85b57c611/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 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