./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_fcd3f865-6c38-4963-80aa-56cfd4109178/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3f865-6c38-4963-80aa-56cfd4109178/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3f865-6c38-4963-80aa-56cfd4109178/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3f865-6c38-4963-80aa-56cfd4109178/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3f865-6c38-4963-80aa-56cfd4109178/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3f865-6c38-4963-80aa-56cfd4109178/bin/utaipan-7li7fVZpFI --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 7e4eda3d9731a5d805cffabe3eaaa057ba5ed6235ab584548c3730cf4f9dedf3 --- 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-5e519f3 [2022-11-03 02:24:51,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:24:51,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:24:51,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:24:51,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:24:51,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:24:51,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:24:51,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:24:51,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:24:51,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:24:51,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:24:51,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:24:51,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:24:51,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:24:51,538 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:24:51,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:24:51,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:24:51,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:24:51,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:24:51,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:24:51,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:24:51,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:24:51,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:24:51,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:24:51,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:24:51,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:24:51,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:24:51,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:24:51,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:24:51,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:24:51,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:24:51,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:24:51,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:24:51,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:24:51,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:24:51,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:24:51,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:24:51,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:24:51,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:24:51,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:24:51,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:24:51,586 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3f865-6c38-4963-80aa-56cfd4109178/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 02:24:51,623 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:24:51,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:24:51,625 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:24:51,625 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:24:51,626 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:24:51,626 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:24:51,627 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:24:51,627 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:24:51,627 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:24:51,628 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:24:51,629 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:24:51,629 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:24:51,630 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:24:51,630 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:24:51,630 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:24:51,631 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:24:51,631 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:24:51,631 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:24:51,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:24:51,633 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:24:51,633 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:24:51,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:24:51,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:24:51,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:24:51,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:24:51,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:24:51,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:24:51,637 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 02:24:51,637 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:24:51,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:24:51,638 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:24:51,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:24:51,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:24:51,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:24:51,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:24:51,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:24:51,640 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:24:51,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:24:51,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:24:51,641 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:24:51,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:24:51,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:24:51,642 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:24:51,642 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_fcd3f865-6c38-4963-80aa-56cfd4109178/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3f865-6c38-4963-80aa-56cfd4109178/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e4eda3d9731a5d805cffabe3eaaa057ba5ed6235ab584548c3730cf4f9dedf3 [2022-11-03 02:24:51,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:24:51,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:24:51,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:24:51,997 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:24:51,998 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:24:51,999 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3f865-6c38-4963-80aa-56cfd4109178/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i [2022-11-03 02:24:52,081 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3f865-6c38-4963-80aa-56cfd4109178/bin/utaipan-7li7fVZpFI/data/b9e8210f3/c2a8f55a3671431bbc787b1dd7fc9ead/FLAGb6a9c82c1 [2022-11-03 02:24:52,649 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:24:52,649 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3f865-6c38-4963-80aa-56cfd4109178/sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i [2022-11-03 02:24:52,660 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3f865-6c38-4963-80aa-56cfd4109178/bin/utaipan-7li7fVZpFI/data/b9e8210f3/c2a8f55a3671431bbc787b1dd7fc9ead/FLAGb6a9c82c1 [2022-11-03 02:24:52,943 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3f865-6c38-4963-80aa-56cfd4109178/bin/utaipan-7li7fVZpFI/data/b9e8210f3/c2a8f55a3671431bbc787b1dd7fc9ead [2022-11-03 02:24:52,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:24:52,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:24:52,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:24:52,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:24:52,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:24:52,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:24:52" (1/1) ... [2022-11-03 02:24:52,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dc3c714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:52, skipping insertion in model container [2022-11-03 02:24:52,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:24:52" (1/1) ... [2022-11-03 02:24:52,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:24:53,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:24:53,612 WARN L230 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_fcd3f865-6c38-4963-80aa-56cfd4109178/sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i[30481,30494] [2022-11-03 02:24:53,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:24:53,631 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:24:53,687 WARN L230 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_fcd3f865-6c38-4963-80aa-56cfd4109178/sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i[30481,30494] [2022-11-03 02:24:53,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:24:53,733 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:24:53,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:53 WrapperNode [2022-11-03 02:24:53,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:24:53,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:24:53,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:24:53,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:24:53,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:53" (1/1) ... [2022-11-03 02:24:53,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:53" (1/1) ... [2022-11-03 02:24:53,804 INFO L138 Inliner]: procedures = 170, calls = 18, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 118 [2022-11-03 02:24:53,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:24:53,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:24:53,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:24:53,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:24:53,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:53" (1/1) ... [2022-11-03 02:24:53,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:53" (1/1) ... [2022-11-03 02:24:53,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:53" (1/1) ... [2022-11-03 02:24:53,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:53" (1/1) ... [2022-11-03 02:24:53,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:53" (1/1) ... [2022-11-03 02:24:53,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:53" (1/1) ... [2022-11-03 02:24:53,833 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:53" (1/1) ... [2022-11-03 02:24:53,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:53" (1/1) ... [2022-11-03 02:24:53,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:24:53,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:24:53,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:24:53,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:24:53,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:53" (1/1) ... [2022-11-03 02:24:53,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:24:53,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3f865-6c38-4963-80aa-56cfd4109178/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:24:53,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3f865-6c38-4963-80aa-56cfd4109178/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:24:53,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd3f865-6c38-4963-80aa-56cfd4109178/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:24:53,958 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-03 02:24:53,958 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-03 02:24:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:24:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:24:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:24:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:24:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:24:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:24:53,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:24:53,962 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:24:54,083 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:24:54,085 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:24:54,378 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:24:54,617 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:24:54,622 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 02:24:54,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:24:54 BoogieIcfgContainer [2022-11-03 02:24:54,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:24:54,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:24:54,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:24:54,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:24:54,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:24:52" (1/3) ... [2022-11-03 02:24:54,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73425123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:24:54, skipping insertion in model container [2022-11-03 02:24:54,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:24:53" (2/3) ... [2022-11-03 02:24:54,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73425123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:24:54, skipping insertion in model container [2022-11-03 02:24:54,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:24:54" (3/3) ... [2022-11-03 02:24:54,638 INFO L112 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf-b.i [2022-11-03 02:24:54,647 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:24:54,656 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:24:54,657 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2022-11-03 02:24:54,657 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:24:54,738 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 02:24:54,786 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:24:54,806 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 97 transitions, 199 flow [2022-11-03 02:24:54,817 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 97 transitions, 199 flow [2022-11-03 02:24:54,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 97 transitions, 199 flow [2022-11-03 02:24:54,919 INFO L130 PetriNetUnfolder]: 5/108 cut-off events. [2022-11-03 02:24:54,919 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-03 02:24:54,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 108 events. 5/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 141 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 79. Up to 4 conditions per place. [2022-11-03 02:24:54,928 INFO L118 LiptonReduction]: Number of co-enabled transitions 1848 [2022-11-03 02:24:58,103 INFO L133 LiptonReduction]: Checked pairs total: 1892 [2022-11-03 02:24:58,104 INFO L135 LiptonReduction]: Total number of compositions: 130 [2022-11-03 02:24:58,114 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 22 transitions, 49 flow [2022-11-03 02:24:58,145 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 87 states, 56 states have (on average 2.6607142857142856) internal successors, (149), 86 states have internal predecessors, (149), 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) [2022-11-03 02:24:58,162 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:24:58,169 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;@241a0bf6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:24:58,169 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-03 02:24:58,171 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 56 states have (on average 2.6607142857142856) internal successors, (149), 86 states have internal predecessors, (149), 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) [2022-11-03 02:24:58,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 02:24:58,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:58,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 02:24:58,178 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-03 02:24:58,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:58,183 INFO L85 PathProgramCache]: Analyzing trace with hash 18428278, now seen corresponding path program 1 times [2022-11-03 02:24:58,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:58,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832554179] [2022-11-03 02:24:58,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:58,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:58,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:24:58,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:58,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832554179] [2022-11-03 02:24:58,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832554179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:58,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:58,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 02:24:58,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950826769] [2022-11-03 02:24:58,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:58,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:24:58,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:58,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:24:58,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:24:58,390 INFO L87 Difference]: Start difference. First operand has 87 states, 56 states have (on average 2.6607142857142856) internal successors, (149), 86 states have internal predecessors, (149), 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) [2022-11-03 02:24:58,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:58,418 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2022-11-03 02:24:58,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:24:58,421 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 [2022-11-03 02:24:58,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:58,429 INFO L225 Difference]: With dead ends: 7 [2022-11-03 02:24:58,430 INFO L226 Difference]: Without dead ends: 7 [2022-11-03 02:24:58,431 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 [2022-11-03 02:24:58,438 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:58,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:24:58,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-11-03 02:24:58,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-11-03 02:24:58,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 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) [2022-11-03 02:24:58,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2022-11-03 02:24:58,473 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 4 [2022-11-03 02:24:58,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:58,474 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2022-11-03 02:24:58,474 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) [2022-11-03 02:24:58,474 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2022-11-03 02:24:58,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-03 02:24:58,475 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:58,475 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-03 02:24:58,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:24:58,480 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-03 02:24:58,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:58,481 INFO L85 PathProgramCache]: Analyzing trace with hash 529636364, now seen corresponding path program 1 times [2022-11-03 02:24:58,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:58,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627748668] [2022-11-03 02:24:58,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:58,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:24:58,546 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 02:24:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:24:58,589 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 02:24:58,590 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 02:24:58,592 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2022-11-03 02:24:58,594 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2022-11-03 02:24:58,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2022-11-03 02:24:58,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2022-11-03 02:24:58,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2022-11-03 02:24:58,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2022-11-03 02:24:58,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2022-11-03 02:24:58,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2022-11-03 02:24:58,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2022-11-03 02:24:58,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2022-11-03 02:24:58,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2022-11-03 02:24:58,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2022-11-03 02:24:58,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2022-11-03 02:24:58,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2022-11-03 02:24:58,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2022-11-03 02:24:58,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2022-11-03 02:24:58,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2022-11-03 02:24:58,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2022-11-03 02:24:58,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2022-11-03 02:24:58,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2022-11-03 02:24:58,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2022-11-03 02:24:58,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2022-11-03 02:24:58,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2022-11-03 02:24:58,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2022-11-03 02:24:58,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2022-11-03 02:24:58,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2022-11-03 02:24:58,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2022-11-03 02:24:58,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2022-11-03 02:24:58,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2022-11-03 02:24:58,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2022-11-03 02:24:58,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2022-11-03 02:24:58,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:24:58,607 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-03 02:24:58,609 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-03 02:24:58,609 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-03 02:24:58,652 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 02:24:58,668 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:24:58,668 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 164 transitions, 340 flow [2022-11-03 02:24:58,669 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 164 transitions, 340 flow [2022-11-03 02:24:58,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 164 transitions, 340 flow [2022-11-03 02:24:58,771 INFO L130 PetriNetUnfolder]: 9/188 cut-off events. [2022-11-03 02:24:58,771 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-03 02:24:58,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 188 events. 9/188 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 466 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 145. Up to 6 conditions per place. [2022-11-03 02:24:58,786 INFO L118 LiptonReduction]: Number of co-enabled transitions 12540 [2022-11-03 02:25:01,808 INFO L133 LiptonReduction]: Checked pairs total: 128144 [2022-11-03 02:25:01,808 INFO L135 LiptonReduction]: Total number of compositions: 188 [2022-11-03 02:25:01,809 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 91 transitions, 194 flow [2022-11-03 02:25:02,184 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 10292 states, 9766 states have (on average 2.993139463444604) internal successors, (29231), 10291 states have internal predecessors, (29231), 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) [2022-11-03 02:25:02,185 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:25:02,186 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;@241a0bf6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:25:02,186 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-11-03 02:25:02,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 10292 states, 9766 states have (on average 2.993139463444604) internal successors, (29231), 10291 states have internal predecessors, (29231), 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) [2022-11-03 02:25:02,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 02:25:02,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:02,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 02:25:02,219 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-03 02:25:02,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:02,220 INFO L85 PathProgramCache]: Analyzing trace with hash 29701797, now seen corresponding path program 1 times [2022-11-03 02:25:02,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:02,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829091421] [2022-11-03 02:25:02,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:02,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:02,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:02,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:02,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829091421] [2022-11-03 02:25:02,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829091421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:02,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:02,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 02:25:02,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713289714] [2022-11-03 02:25:02,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:02,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:25:02,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:25:02,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:25:02,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:25:02,287 INFO L87 Difference]: Start difference. First operand has 10292 states, 9766 states have (on average 2.993139463444604) internal successors, (29231), 10291 states have internal predecessors, (29231), 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) [2022-11-03 02:25:02,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:02,506 INFO L93 Difference]: Finished difference Result 5251 states and 14595 transitions. [2022-11-03 02:25:02,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:25:02,507 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 [2022-11-03 02:25:02,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:02,572 INFO L225 Difference]: With dead ends: 5251 [2022-11-03 02:25:02,572 INFO L226 Difference]: Without dead ends: 5251 [2022-11-03 02:25:02,572 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 [2022-11-03 02:25:02,578 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:02,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:25:02,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5251 states. [2022-11-03 02:25:02,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5251 to 5251. [2022-11-03 02:25:02,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5187 states have (on average 2.8137651821862346) internal successors, (14595), 5250 states have internal predecessors, (14595), 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) [2022-11-03 02:25:02,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 14595 transitions. [2022-11-03 02:25:02,925 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 14595 transitions. Word has length 4 [2022-11-03 02:25:02,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:02,926 INFO L495 AbstractCegarLoop]: Abstraction has 5251 states and 14595 transitions. [2022-11-03 02:25:02,926 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) [2022-11-03 02:25:02,927 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 14595 transitions. [2022-11-03 02:25:02,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-03 02:25:02,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:02,927 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-03 02:25:02,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:25:02,928 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-03 02:25:02,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:02,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1521393190, now seen corresponding path program 1 times [2022-11-03 02:25:02,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:02,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806920041] [2022-11-03 02:25:02,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:02,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:02,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:02,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:02,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806920041] [2022-11-03 02:25:02,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806920041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:02,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:02,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:25:02,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501489446] [2022-11-03 02:25:02,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:02,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:25:02,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:25:02,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:25:02,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:25:02,986 INFO L87 Difference]: Start difference. First operand 5251 states and 14595 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-03 02:25:03,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:03,185 INFO L93 Difference]: Finished difference Result 6522 states and 17513 transitions. [2022-11-03 02:25:03,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:25:03,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-11-03 02:25:03,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:03,229 INFO L225 Difference]: With dead ends: 6522 [2022-11-03 02:25:03,230 INFO L226 Difference]: Without dead ends: 6522 [2022-11-03 02:25:03,230 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 [2022-11-03 02:25:03,236 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 57 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:03,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 71 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:25:03,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6522 states. [2022-11-03 02:25:03,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6522 to 5223. [2022-11-03 02:25:03,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 5163 states have (on average 2.7392988572535346) internal successors, (14143), 5222 states have internal predecessors, (14143), 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) [2022-11-03 02:25:03,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 14143 transitions. [2022-11-03 02:25:03,491 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 14143 transitions. Word has length 6 [2022-11-03 02:25:03,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:03,492 INFO L495 AbstractCegarLoop]: Abstraction has 5223 states and 14143 transitions. [2022-11-03 02:25:03,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-03 02:25:03,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 14143 transitions. [2022-11-03 02:25:03,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:25:03,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:03,501 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:03,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:25:03,501 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-03 02:25:03,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:03,502 INFO L85 PathProgramCache]: Analyzing trace with hash -114770695, now seen corresponding path program 1 times [2022-11-03 02:25:03,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:03,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000838932] [2022-11-03 02:25:03,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:03,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:03,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:03,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:03,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000838932] [2022-11-03 02:25:03,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000838932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:03,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:03,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:25:03,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912910327] [2022-11-03 02:25:03,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:03,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:25:03,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:25:03,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:25:03,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:25:03,637 INFO L87 Difference]: Start difference. First operand 5223 states and 14143 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-03 02:25:03,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:03,800 INFO L93 Difference]: Finished difference Result 5459 states and 14807 transitions. [2022-11-03 02:25:03,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:25:03,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-11-03 02:25:03,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:03,837 INFO L225 Difference]: With dead ends: 5459 [2022-11-03 02:25:03,837 INFO L226 Difference]: Without dead ends: 5459 [2022-11-03 02:25:03,837 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 [2022-11-03 02:25:03,838 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 34 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:03,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 84 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:25:03,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5459 states. [2022-11-03 02:25:04,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5459 to 5319. [2022-11-03 02:25:04,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5319 states, 5261 states have (on average 2.739973389089527) internal successors, (14415), 5318 states have internal predecessors, (14415), 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) [2022-11-03 02:25:04,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5319 states to 5319 states and 14415 transitions. [2022-11-03 02:25:04,184 INFO L78 Accepts]: Start accepts. Automaton has 5319 states and 14415 transitions. Word has length 10 [2022-11-03 02:25:04,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:04,185 INFO L495 AbstractCegarLoop]: Abstraction has 5319 states and 14415 transitions. [2022-11-03 02:25:04,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-03 02:25:04,185 INFO L276 IsEmpty]: Start isEmpty. Operand 5319 states and 14415 transitions. [2022-11-03 02:25:04,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 02:25:04,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:04,204 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-03 02:25:04,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:25:04,206 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-03 02:25:04,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:04,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1765486567, now seen corresponding path program 1 times [2022-11-03 02:25:04,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:04,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542786659] [2022-11-03 02:25:04,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:04,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:25:04,256 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 02:25:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:25:04,279 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 02:25:04,279 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 02:25:04,280 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2022-11-03 02:25:04,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2022-11-03 02:25:04,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2022-11-03 02:25:04,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2022-11-03 02:25:04,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2022-11-03 02:25:04,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2022-11-03 02:25:04,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2022-11-03 02:25:04,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2022-11-03 02:25:04,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2022-11-03 02:25:04,298 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2022-11-03 02:25:04,299 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2022-11-03 02:25:04,299 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2022-11-03 02:25:04,302 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2022-11-03 02:25:04,303 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2022-11-03 02:25:04,304 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2022-11-03 02:25:04,304 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2022-11-03 02:25:04,304 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2022-11-03 02:25:04,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2022-11-03 02:25:04,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2022-11-03 02:25:04,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2022-11-03 02:25:04,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2022-11-03 02:25:04,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2022-11-03 02:25:04,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2022-11-03 02:25:04,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2022-11-03 02:25:04,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2022-11-03 02:25:04,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2022-11-03 02:25:04,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2022-11-03 02:25:04,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2022-11-03 02:25:04,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2022-11-03 02:25:04,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2022-11-03 02:25:04,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2022-11-03 02:25:04,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2022-11-03 02:25:04,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2022-11-03 02:25:04,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2022-11-03 02:25:04,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2022-11-03 02:25:04,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2022-11-03 02:25:04,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2022-11-03 02:25:04,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2022-11-03 02:25:04,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2022-11-03 02:25:04,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2022-11-03 02:25:04,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2022-11-03 02:25:04,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2022-11-03 02:25:04,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2022-11-03 02:25:04,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2022-11-03 02:25:04,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2022-11-03 02:25:04,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2022-11-03 02:25:04,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:25:04,329 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-03 02:25:04,330 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-03 02:25:04,330 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-03 02:25:04,393 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 02:25:04,400 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:25:04,400 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 231 transitions, 483 flow [2022-11-03 02:25:04,401 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 231 transitions, 483 flow [2022-11-03 02:25:04,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 231 transitions, 483 flow [2022-11-03 02:25:04,562 INFO L130 PetriNetUnfolder]: 13/268 cut-off events. [2022-11-03 02:25:04,565 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-03 02:25:04,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 268 events. 13/268 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 894 event pairs, 0 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 211. Up to 8 conditions per place. [2022-11-03 02:25:04,585 INFO L118 LiptonReduction]: Number of co-enabled transitions 32076 [2022-11-03 02:25:09,431 INFO L133 LiptonReduction]: Checked pairs total: 354023 [2022-11-03 02:25:09,432 INFO L135 LiptonReduction]: Total number of compositions: 255 [2022-11-03 02:25:09,433 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 136 places, 134 transitions, 289 flow [2022-11-03 02:25:21,923 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 422136 states, 413675 states have (on average 3.9431534417114884) internal successors, (1631184), 422135 states have internal predecessors, (1631184), 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) [2022-11-03 02:25:21,939 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:25:21,940 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;@241a0bf6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:25:21,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2022-11-03 02:25:22,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 422136 states, 413675 states have (on average 3.9431534417114884) internal successors, (1631184), 422135 states have internal predecessors, (1631184), 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) [2022-11-03 02:25:22,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 02:25:22,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:22,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 02:25:22,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:25:22,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:22,511 INFO L85 PathProgramCache]: Analyzing trace with hash 45981340, now seen corresponding path program 1 times [2022-11-03 02:25:22,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:22,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355029636] [2022-11-03 02:25:22,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:22,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:22,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:22,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:22,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355029636] [2022-11-03 02:25:22,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355029636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:22,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:22,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 02:25:22,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946423741] [2022-11-03 02:25:22,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:22,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:25:22,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:25:22,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:25:22,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:25:23,064 INFO L87 Difference]: Start difference. First operand has 422136 states, 413675 states have (on average 3.9431534417114884) internal successors, (1631184), 422135 states have internal predecessors, (1631184), 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) [2022-11-03 02:25:27,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:27,313 INFO L93 Difference]: Finished difference Result 168067 states and 635139 transitions. [2022-11-03 02:25:27,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:25:27,313 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 [2022-11-03 02:25:27,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:28,839 INFO L225 Difference]: With dead ends: 168067 [2022-11-03 02:25:28,839 INFO L226 Difference]: Without dead ends: 168067 [2022-11-03 02:25:28,840 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 [2022-11-03 02:25:28,841 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:28,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:25:29,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168067 states. [2022-11-03 02:25:36,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168067 to 168067. [2022-11-03 02:25:36,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168067 states, 167555 states have (on average 3.7906299424069707) internal successors, (635139), 168066 states have internal predecessors, (635139), 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) [2022-11-03 02:25:37,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168067 states to 168067 states and 635139 transitions. [2022-11-03 02:25:37,614 INFO L78 Accepts]: Start accepts. Automaton has 168067 states and 635139 transitions. Word has length 4 [2022-11-03 02:25:37,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:37,619 INFO L495 AbstractCegarLoop]: Abstraction has 168067 states and 635139 transitions. [2022-11-03 02:25:37,619 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) [2022-11-03 02:25:37,620 INFO L276 IsEmpty]: Start isEmpty. Operand 168067 states and 635139 transitions. [2022-11-03 02:25:37,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-03 02:25:37,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:37,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-03 02:25:37,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:25:37,622 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:25:37,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:37,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1238321674, now seen corresponding path program 1 times [2022-11-03 02:25:37,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:37,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972253566] [2022-11-03 02:25:37,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:37,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:37,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:37,675 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:37,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972253566] [2022-11-03 02:25:37,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972253566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:37,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:37,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:25:37,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89899635] [2022-11-03 02:25:37,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:37,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:25:37,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:25:37,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:25:37,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:25:37,680 INFO L87 Difference]: Start difference. First operand 168067 states and 635139 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-03 02:25:41,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:41,237 INFO L93 Difference]: Finished difference Result 240238 states and 871074 transitions. [2022-11-03 02:25:41,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:25:41,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-11-03 02:25:41,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:43,747 INFO L225 Difference]: With dead ends: 240238 [2022-11-03 02:25:43,747 INFO L226 Difference]: Without dead ends: 240238 [2022-11-03 02:25:43,747 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 [2022-11-03 02:25:43,748 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 84 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:43,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 86 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:25:44,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240238 states. [2022-11-03 02:25:50,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240238 to 176643. [2022-11-03 02:25:50,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176643 states, 176139 states have (on average 3.6725029664072126) internal successors, (646871), 176642 states have internal predecessors, (646871), 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) [2022-11-03 02:25:52,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176643 states to 176643 states and 646871 transitions. [2022-11-03 02:25:52,689 INFO L78 Accepts]: Start accepts. Automaton has 176643 states and 646871 transitions. Word has length 6 [2022-11-03 02:25:52,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:52,690 INFO L495 AbstractCegarLoop]: Abstraction has 176643 states and 646871 transitions. [2022-11-03 02:25:52,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-03 02:25:52,690 INFO L276 IsEmpty]: Start isEmpty. Operand 176643 states and 646871 transitions. [2022-11-03 02:25:52,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:25:52,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:52,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:52,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:25:52,692 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:25:52,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:52,692 INFO L85 PathProgramCache]: Analyzing trace with hash -539084400, now seen corresponding path program 1 times [2022-11-03 02:25:52,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:52,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305639068] [2022-11-03 02:25:52,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:52,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:52,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:52,747 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:52,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305639068] [2022-11-03 02:25:52,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305639068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:25:52,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:25:52,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:25:52,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651908793] [2022-11-03 02:25:52,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:25:52,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:25:52,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:25:52,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.