./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00078fea-e3c8-463f-a4d8-e6c2d4b51b25/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00078fea-e3c8-463f-a4d8-e6c2d4b51b25/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00078fea-e3c8-463f-a4d8-e6c2d4b51b25/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00078fea-e3c8-463f-a4d8-e6c2d4b51b25/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00078fea-e3c8-463f-a4d8-e6c2d4b51b25/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00078fea-e3c8-463f-a4d8-e6c2d4b51b25/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3f188168fffbbf8c03071990a7bb806f47bcfd599d52fd9001ab6073a6b782e8 --- 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-e04fb08 [2022-11-16 11:29:18,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:29:18,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:29:18,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:29:18,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:29:19,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:29:19,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:29:19,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:29:19,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:29:19,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:29:19,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:29:19,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:29:19,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:29:19,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:29:19,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:29:19,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:29:19,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:29:19,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:29:19,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:29:19,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:29:19,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:29:19,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:29:19,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:29:19,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:29:19,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:29:19,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:29:19,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:29:19,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:29:19,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:29:19,069 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:29:19,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:29:19,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:29:19,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:29:19,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:29:19,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:29:19,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:29:19,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:29:19,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:29:19,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:29:19,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:29:19,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:29:19,082 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00078fea-e3c8-463f-a4d8-e6c2d4b51b25/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:29:19,109 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:29:19,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:29:19,110 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:29:19,110 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:29:19,111 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:29:19,111 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:29:19,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:29:19,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:29:19,113 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:29:19,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:29:19,113 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:29:19,113 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:29:19,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:29:19,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:29:19,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:29:19,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:29:19,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:29:19,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:29:19,115 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:29:19,116 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:29:19,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:29:19,116 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:29:19,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:29:19,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:29:19,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:29:19,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:29:19,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:29:19,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:29:19,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:29:19,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:29:19,119 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:29:19,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:29:19,119 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:29:19,120 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:29:19,120 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:29:19,120 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_00078fea-e3c8-463f-a4d8-e6c2d4b51b25/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00078fea-e3c8-463f-a4d8-e6c2d4b51b25/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f188168fffbbf8c03071990a7bb806f47bcfd599d52fd9001ab6073a6b782e8 [2022-11-16 11:29:19,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:29:19,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:29:19,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:29:19,558 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:29:19,558 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:29:19,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00078fea-e3c8-463f-a4d8-e6c2d4b51b25/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c [2022-11-16 11:29:19,639 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00078fea-e3c8-463f-a4d8-e6c2d4b51b25/bin/uautomizer-tPACEb0tL8/data/b1b489225/8fe3b4f39b73478da033b2927a77e31d/FLAGf6ef308aa [2022-11-16 11:29:20,223 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:29:20,224 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00078fea-e3c8-463f-a4d8-e6c2d4b51b25/sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c [2022-11-16 11:29:20,233 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00078fea-e3c8-463f-a4d8-e6c2d4b51b25/bin/uautomizer-tPACEb0tL8/data/b1b489225/8fe3b4f39b73478da033b2927a77e31d/FLAGf6ef308aa [2022-11-16 11:29:20,551 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00078fea-e3c8-463f-a4d8-e6c2d4b51b25/bin/uautomizer-tPACEb0tL8/data/b1b489225/8fe3b4f39b73478da033b2927a77e31d [2022-11-16 11:29:20,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:29:20,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:29:20,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:29:20,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:29:20,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:29:20,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:29:20" (1/1) ... [2022-11-16 11:29:20,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f2fb7c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:20, skipping insertion in model container [2022-11-16 11:29:20,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:29:20" (1/1) ... [2022-11-16 11:29:20,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:29:20,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:29:20,943 WARN L229 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_00078fea-e3c8-463f-a4d8-e6c2d4b51b25/sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c[2728,2741] [2022-11-16 11:29:20,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:29:20,960 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:29:20,999 WARN L229 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_00078fea-e3c8-463f-a4d8-e6c2d4b51b25/sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c[2728,2741] [2022-11-16 11:29:21,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:29:21,022 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:29:21,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:21 WrapperNode [2022-11-16 11:29:21,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:29:21,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:29:21,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:29:21,025 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:29:21,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:21" (1/1) ... [2022-11-16 11:29:21,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:21" (1/1) ... [2022-11-16 11:29:21,104 INFO L138 Inliner]: procedures = 26, calls = 49, calls flagged for inlining = 13, calls inlined = 21, statements flattened = 504 [2022-11-16 11:29:21,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:29:21,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:29:21,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:29:21,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:29:21,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:21" (1/1) ... [2022-11-16 11:29:21,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:21" (1/1) ... [2022-11-16 11:29:21,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:21" (1/1) ... [2022-11-16 11:29:21,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:21" (1/1) ... [2022-11-16 11:29:21,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:21" (1/1) ... [2022-11-16 11:29:21,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:21" (1/1) ... [2022-11-16 11:29:21,170 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:21" (1/1) ... [2022-11-16 11:29:21,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:21" (1/1) ... [2022-11-16 11:29:21,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:29:21,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:29:21,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:29:21,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:29:21,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:21" (1/1) ... [2022-11-16 11:29:21,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:29:21,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00078fea-e3c8-463f-a4d8-e6c2d4b51b25/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:29:21,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00078fea-e3c8-463f-a4d8-e6c2d4b51b25/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:29:21,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00078fea-e3c8-463f-a4d8-e6c2d4b51b25/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:29:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:29:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:29:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:29:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:29:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:29:21,299 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:29:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:29:21,300 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:29:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 11:29:21,300 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 11:29:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:29:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:29:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:29:21,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:29:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:29:21,305 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:29:21,539 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:29:21,542 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:29:22,615 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:29:22,641 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:29:22,643 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-16 11:29:22,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:29:22 BoogieIcfgContainer [2022-11-16 11:29:22,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:29:22,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:29:22,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:29:22,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:29:22,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:29:20" (1/3) ... [2022-11-16 11:29:22,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a86feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:29:22, skipping insertion in model container [2022-11-16 11:29:22,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:21" (2/3) ... [2022-11-16 11:29:22,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a86feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:29:22, skipping insertion in model container [2022-11-16 11:29:22,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:29:22" (3/3) ... [2022-11-16 11:29:22,658 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-array-int-trans.wvr.c [2022-11-16 11:29:22,673 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:29:22,683 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:29:22,684 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2022-11-16 11:29:22,684 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:29:22,897 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 11:29:22,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 618 places, 641 transitions, 1306 flow [2022-11-16 11:29:23,416 INFO L130 PetriNetUnfolder]: 33/638 cut-off events. [2022-11-16 11:29:23,417 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:29:23,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 651 conditions, 638 events. 33/638 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1537 event pairs, 0 based on Foata normal form. 0/545 useless extension candidates. Maximal degree in co-relation 460. Up to 3 conditions per place. [2022-11-16 11:29:23,444 INFO L82 GeneralOperation]: Start removeDead. Operand has 618 places, 641 transitions, 1306 flow [2022-11-16 11:29:23,465 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 593 places, 614 transitions, 1246 flow [2022-11-16 11:29:23,490 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:29:23,501 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27e163ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:29:23,502 INFO L358 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2022-11-16 11:29:23,508 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-16 11:29:23,509 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:29:23,509 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:29:23,510 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:23,511 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2022-11-16 11:29:23,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:23,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1476022102, now seen corresponding path program 1 times [2022-11-16 11:29:23,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:23,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825761595] [2022-11-16 11:29:23,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:23,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:23,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:23,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:23,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825761595] [2022-11-16 11:29:23,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825761595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:23,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:23,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:29:23,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657984462] [2022-11-16 11:29:23,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:23,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:29:23,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:23,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:29:23,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:29:23,935 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 594 out of 641 [2022-11-16 11:29:23,947 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 593 places, 614 transitions, 1246 flow. Second operand has 3 states, 3 states have (on average 595.3333333333334) internal successors, (1786), 3 states have internal predecessors, (1786), 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) [2022-11-16 11:29:23,947 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:29:23,947 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 594 of 641 [2022-11-16 11:29:23,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:29:25,122 INFO L130 PetriNetUnfolder]: 106/1875 cut-off events. [2022-11-16 11:29:25,123 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2022-11-16 11:29:25,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2071 conditions, 1875 events. 106/1875 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 11679 event pairs, 60 based on Foata normal form. 89/1648 useless extension candidates. Maximal degree in co-relation 1532. Up to 145 conditions per place. [2022-11-16 11:29:25,192 INFO L137 encePairwiseOnDemand]: 620/641 looper letters, 24 selfloop transitions, 2 changer transitions 6/595 dead transitions. [2022-11-16 11:29:25,193 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 594 places, 595 transitions, 1260 flow [2022-11-16 11:29:25,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:29:25,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:29:25,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1827 transitions. [2022-11-16 11:29:25,220 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9500780031201248 [2022-11-16 11:29:25,221 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1827 transitions. [2022-11-16 11:29:25,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1827 transitions. [2022-11-16 11:29:25,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:29:25,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1827 transitions. [2022-11-16 11:29:25,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 609.0) internal successors, (1827), 3 states have internal predecessors, (1827), 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) [2022-11-16 11:29:25,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 641.0) internal successors, (2564), 4 states have internal predecessors, (2564), 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) [2022-11-16 11:29:25,251 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 641.0) internal successors, (2564), 4 states have internal predecessors, (2564), 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) [2022-11-16 11:29:25,254 INFO L175 Difference]: Start difference. First operand has 593 places, 614 transitions, 1246 flow. Second operand 3 states and 1827 transitions. [2022-11-16 11:29:25,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 594 places, 595 transitions, 1260 flow [2022-11-16 11:29:25,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 588 places, 595 transitions, 1248 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 11:29:25,277 INFO L231 Difference]: Finished difference. Result has 588 places, 589 transitions, 1188 flow [2022-11-16 11:29:25,281 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=641, PETRI_DIFFERENCE_MINUEND_FLOW=1196, PETRI_DIFFERENCE_MINUEND_PLACES=586, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=595, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=593, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1188, PETRI_PLACES=588, PETRI_TRANSITIONS=589} [2022-11-16 11:29:25,285 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -5 predicate places. [2022-11-16 11:29:25,285 INFO L495 AbstractCegarLoop]: Abstraction has has 588 places, 589 transitions, 1188 flow [2022-11-16 11:29:25,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 595.3333333333334) internal successors, (1786), 3 states have internal predecessors, (1786), 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) [2022-11-16 11:29:25,287 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:29:25,287 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:25,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:29:25,288 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2022-11-16 11:29:25,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:25,289 INFO L85 PathProgramCache]: Analyzing trace with hash 407879198, now seen corresponding path program 1 times [2022-11-16 11:29:25,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:25,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209857296] [2022-11-16 11:29:25,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:25,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:25,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:25,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:25,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209857296] [2022-11-16 11:29:25,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209857296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:25,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:25,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:29:25,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316072390] [2022-11-16 11:29:25,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:25,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:29:25,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:25,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:29:25,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:29:25,499 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 594 out of 641 [2022-11-16 11:29:25,507 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 588 places, 589 transitions, 1188 flow. Second operand has 3 states, 3 states have (on average 595.3333333333334) internal successors, (1786), 3 states have internal predecessors, (1786), 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) [2022-11-16 11:29:25,507 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:29:25,507 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 594 of 641 [2022-11-16 11:29:25,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:29:27,091 INFO L130 PetriNetUnfolder]: 227/3225 cut-off events. [2022-11-16 11:29:27,092 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-16 11:29:27,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3562 conditions, 3225 events. 227/3225 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 26464 event pairs, 132 based on Foata normal form. 0/2682 useless extension candidates. Maximal degree in co-relation 3525. Up to 274 conditions per place. [2022-11-16 11:29:27,183 INFO L137 encePairwiseOnDemand]: 638/641 looper letters, 24 selfloop transitions, 2 changer transitions 0/588 dead transitions. [2022-11-16 11:29:27,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 583 places, 588 transitions, 1238 flow [2022-11-16 11:29:27,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:29:27,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:29:27,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1809 transitions. [2022-11-16 11:29:27,190 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9407176287051482 [2022-11-16 11:29:27,190 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1809 transitions. [2022-11-16 11:29:27,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1809 transitions. [2022-11-16 11:29:27,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:29:27,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1809 transitions. [2022-11-16 11:29:27,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 603.0) internal successors, (1809), 3 states have internal predecessors, (1809), 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) [2022-11-16 11:29:27,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 641.0) internal successors, (2564), 4 states have internal predecessors, (2564), 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) [2022-11-16 11:29:27,203 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 641.0) internal successors, (2564), 4 states have internal predecessors, (2564), 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) [2022-11-16 11:29:27,204 INFO L175 Difference]: Start difference. First operand has 588 places, 589 transitions, 1188 flow. Second operand 3 states and 1809 transitions. [2022-11-16 11:29:27,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 583 places, 588 transitions, 1238 flow [2022-11-16 11:29:27,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 581 places, 588 transitions, 1234 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:29:27,217 INFO L231 Difference]: Finished difference. Result has 581 places, 588 transitions, 1186 flow [2022-11-16 11:29:27,218 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=641, PETRI_DIFFERENCE_MINUEND_FLOW=1182, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1186, PETRI_PLACES=581, PETRI_TRANSITIONS=588} [2022-11-16 11:29:27,219 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -12 predicate places. [2022-11-16 11:29:27,219 INFO L495 AbstractCegarLoop]: Abstraction has has 581 places, 588 transitions, 1186 flow [2022-11-16 11:29:27,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 595.3333333333334) internal successors, (1786), 3 states have internal predecessors, (1786), 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) [2022-11-16 11:29:27,221 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:29:27,221 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:27,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:29:27,222 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2022-11-16 11:29:27,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:27,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1566259234, now seen corresponding path program 1 times [2022-11-16 11:29:27,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:27,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141871092] [2022-11-16 11:29:27,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:27,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:27,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:27,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:27,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141871092] [2022-11-16 11:29:27,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141871092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:27,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:27,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:29:27,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354170373] [2022-11-16 11:29:27,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:27,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:29:27,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:27,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:29:27,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:29:27,307 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 594 out of 641 [2022-11-16 11:29:27,310 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 588 transitions, 1186 flow. Second operand has 3 states, 3 states have (on average 595.3333333333334) internal successors, (1786), 3 states have internal predecessors, (1786), 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) [2022-11-16 11:29:27,310 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:29:27,310 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 594 of 641 [2022-11-16 11:29:27,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:29:28,734 INFO L130 PetriNetUnfolder]: 227/3194 cut-off events. [2022-11-16 11:29:28,735 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-11-16 11:29:28,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3483 conditions, 3194 events. 227/3194 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 25805 event pairs, 132 based on Foata normal form. 0/2662 useless extension candidates. Maximal degree in co-relation 3439. Up to 274 conditions per place. [2022-11-16 11:29:28,833 INFO L137 encePairwiseOnDemand]: 638/641 looper letters, 24 selfloop transitions, 2 changer transitions 0/587 dead transitions. [2022-11-16 11:29:28,833 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 582 places, 587 transitions, 1236 flow [2022-11-16 11:29:28,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:29:28,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:29:28,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1809 transitions. [2022-11-16 11:29:28,841 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9407176287051482 [2022-11-16 11:29:28,841 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1809 transitions. [2022-11-16 11:29:28,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1809 transitions. [2022-11-16 11:29:28,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:29:28,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1809 transitions. [2022-11-16 11:29:28,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 603.0) internal successors, (1809), 3 states have internal predecessors, (1809), 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) [2022-11-16 11:29:28,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 641.0) internal successors, (2564), 4 states have internal predecessors, (2564), 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) [2022-11-16 11:29:28,856 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 641.0) internal successors, (2564), 4 states have internal predecessors, (2564), 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) [2022-11-16 11:29:28,856 INFO L175 Difference]: Start difference. First operand has 581 places, 588 transitions, 1186 flow. Second operand 3 states and 1809 transitions. [2022-11-16 11:29:28,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 582 places, 587 transitions, 1236 flow [2022-11-16 11:29:28,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 580 places, 587 transitions, 1232 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:29:28,870 INFO L231 Difference]: Finished difference. Result has 580 places, 587 transitions, 1184 flow [2022-11-16 11:29:28,871 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=641, PETRI_DIFFERENCE_MINUEND_FLOW=1180, PETRI_DIFFERENCE_MINUEND_PLACES=578, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=587, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=585, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1184, PETRI_PLACES=580, PETRI_TRANSITIONS=587} [2022-11-16 11:29:28,874 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -13 predicate places. [2022-11-16 11:29:28,875 INFO L495 AbstractCegarLoop]: Abstraction has has 580 places, 587 transitions, 1184 flow [2022-11-16 11:29:28,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 595.3333333333334) internal successors, (1786), 3 states have internal predecessors, (1786), 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) [2022-11-16 11:29:28,876 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:29:28,877 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:28,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:29:28,877 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2022-11-16 11:29:28,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:28,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1279621106, now seen corresponding path program 1 times [2022-11-16 11:29:28,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:28,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773511350] [2022-11-16 11:29:28,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:28,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:28,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:28,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:28,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773511350] [2022-11-16 11:29:28,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773511350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:28,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:28,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:29:28,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495167801] [2022-11-16 11:29:28,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:29,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:29:29,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:29,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:29:29,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:29:29,006 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 597 out of 641 [2022-11-16 11:29:29,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 580 places, 587 transitions, 1184 flow. Second operand has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 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) [2022-11-16 11:29:29,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:29:29,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 597 of 641 [2022-11-16 11:29:29,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:29:29,637 INFO L130 PetriNetUnfolder]: 72/1598 cut-off events. [2022-11-16 11:29:29,638 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-16 11:29:29,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1696 conditions, 1598 events. 72/1598 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 9198 event pairs, 32 based on Foata normal form. 0/1366 useless extension candidates. Maximal degree in co-relation 1644. Up to 80 conditions per place. [2022-11-16 11:29:29,696 INFO L137 encePairwiseOnDemand]: 635/641 looper letters, 17 selfloop transitions, 1 changer transitions 0/582 dead transitions. [2022-11-16 11:29:29,697 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 577 places, 582 transitions, 1210 flow [2022-11-16 11:29:29,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:29:29,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:29:29,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1814 transitions. [2022-11-16 11:29:29,702 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9433177327093084 [2022-11-16 11:29:29,703 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1814 transitions. [2022-11-16 11:29:29,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1814 transitions. [2022-11-16 11:29:29,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:29:29,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1814 transitions. [2022-11-16 11:29:29,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 604.6666666666666) internal successors, (1814), 3 states have internal predecessors, (1814), 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) [2022-11-16 11:29:29,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 641.0) internal successors, (2564), 4 states have internal predecessors, (2564), 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) [2022-11-16 11:29:29,723 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 641.0) internal successors, (2564), 4 states have internal predecessors, (2564), 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) [2022-11-16 11:29:29,724 INFO L175 Difference]: Start difference. First operand has 580 places, 587 transitions, 1184 flow. Second operand 3 states and 1814 transitions. [2022-11-16 11:29:29,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 577 places, 582 transitions, 1210 flow [2022-11-16 11:29:29,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 575 places, 582 transitions, 1206 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:29:29,739 INFO L231 Difference]: Finished difference. Result has 575 places, 582 transitions, 1172 flow [2022-11-16 11:29:29,742 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=641, PETRI_DIFFERENCE_MINUEND_FLOW=1170, PETRI_DIFFERENCE_MINUEND_PLACES=573, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1172, PETRI_PLACES=575, PETRI_TRANSITIONS=582} [2022-11-16 11:29:29,743 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -18 predicate places. [2022-11-16 11:29:29,744 INFO L495 AbstractCegarLoop]: Abstraction has has 575 places, 582 transitions, 1172 flow [2022-11-16 11:29:29,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 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) [2022-11-16 11:29:29,746 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:29:29,747 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:29,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:29:29,747 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2022-11-16 11:29:29,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:29,748 INFO L85 PathProgramCache]: Analyzing trace with hash -2064625485, now seen corresponding path program 1 times [2022-11-16 11:29:29,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:29,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287305397] [2022-11-16 11:29:29,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:29,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:29,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:29,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:29,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287305397] [2022-11-16 11:29:29,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287305397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:29,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:29,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:29:29,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342755652] [2022-11-16 11:29:29,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:29,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:29:29,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:29,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:29:29,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:29:29,902 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 597 out of 641 [2022-11-16 11:29:29,905 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 575 places, 582 transitions, 1172 flow. Second operand has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 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) [2022-11-16 11:29:29,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:29:29,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 597 of 641 [2022-11-16 11:29:29,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:29:30,727 INFO L130 PetriNetUnfolder]: 123/1961 cut-off events. [2022-11-16 11:29:30,727 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-11-16 11:29:30,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2151 conditions, 1961 events. 123/1961 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 12662 event pairs, 60 based on Foata normal form. 0/1663 useless extension candidates. Maximal degree in co-relation 2100. Up to 170 conditions per place. [2022-11-16 11:29:30,798 INFO L137 encePairwiseOnDemand]: 638/641 looper letters, 21 selfloop transitions, 2 changer transitions 0/581 dead transitions. [2022-11-16 11:29:30,798 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 576 places, 581 transitions, 1216 flow [2022-11-16 11:29:30,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:29:30,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:29:30,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1815 transitions. [2022-11-16 11:29:30,804 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9438377535101404 [2022-11-16 11:29:30,804 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1815 transitions. [2022-11-16 11:29:30,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1815 transitions. [2022-11-16 11:29:30,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:29:30,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1815 transitions. [2022-11-16 11:29:30,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 605.0) internal successors, (1815), 3 states have internal predecessors, (1815), 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) [2022-11-16 11:29:30,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 641.0) internal successors, (2564), 4 states have internal predecessors, (2564), 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) [2022-11-16 11:29:30,819 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 641.0) internal successors, (2564), 4 states have internal predecessors, (2564), 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) [2022-11-16 11:29:30,819 INFO L175 Difference]: Start difference. First operand has 575 places, 582 transitions, 1172 flow. Second operand 3 states and 1815 transitions. [2022-11-16 11:29:30,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 576 places, 581 transitions, 1216 flow [2022-11-16 11:29:30,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 575 places, 581 transitions, 1215 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:29:30,833 INFO L231 Difference]: Finished difference. Result has 575 places, 581 transitions, 1173 flow [2022-11-16 11:29:30,835 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=641, PETRI_DIFFERENCE_MINUEND_FLOW=1169, PETRI_DIFFERENCE_MINUEND_PLACES=573, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=581, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=579, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1173, PETRI_PLACES=575, PETRI_TRANSITIONS=581} [2022-11-16 11:29:30,838 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -18 predicate places. [2022-11-16 11:29:30,838 INFO L495 AbstractCegarLoop]: Abstraction has has 575 places, 581 transitions, 1173 flow [2022-11-16 11:29:30,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 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) [2022-11-16 11:29:30,840 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:29:30,841 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:30,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:29:30,841 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2022-11-16 11:29:30,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:30,843 INFO L85 PathProgramCache]: Analyzing trace with hash -294892708, now seen corresponding path program 1 times [2022-11-16 11:29:30,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:30,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069683501] [2022-11-16 11:29:30,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:30,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:31,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:31,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:31,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069683501] [2022-11-16 11:29:31,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069683501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:31,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:31,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:29:31,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952953795] [2022-11-16 11:29:31,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:31,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:29:31,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:31,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:29:31,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:29:31,628 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 641 [2022-11-16 11:29:31,633 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 575 places, 581 transitions, 1173 flow. Second operand has 6 states, 6 states have (on average 475.8333333333333) internal successors, (2855), 6 states have internal predecessors, (2855), 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) [2022-11-16 11:29:31,633 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:29:31,633 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 641 [2022-11-16 11:29:31,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand