./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8 --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 bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f --- 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-2329fc7 [2022-12-13 15:34:04,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:34:04,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:34:04,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:34:04,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:34:04,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:34:04,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:34:04,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:34:04,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:34:04,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:34:04,735 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:34:04,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:34:04,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:34:04,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:34:04,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:34:04,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:34:04,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:34:04,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:34:04,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:34:04,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:34:04,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:34:04,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:34:04,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:34:04,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:34:04,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:34:04,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:34:04,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:34:04,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:34:04,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:34:04,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:34:04,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:34:04,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:34:04,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:34:04,776 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:34:04,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:34:04,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:34:04,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:34:04,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:34:04,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:34:04,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:34:04,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:34:04,779 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 15:34:04,811 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:34:04,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:34:04,811 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:34:04,811 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:34:04,812 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:34:04,812 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:34:04,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:34:04,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:34:04,813 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:34:04,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:34:04,813 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:34:04,813 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:34:04,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:34:04,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:34:04,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:34:04,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:34:04,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:34:04,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:34:04,815 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 15:34:04,815 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:34:04,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:34:04,815 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:34:04,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:34:04,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:34:04,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:34:04,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:34:04,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:34:04,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:34:04,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:34:04,816 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:34:04,816 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:34:04,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:34:04,816 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:34:04,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:34:04,817 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:34:04,817 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:34:04,817 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:34:04,817 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f [2022-12-13 15:34:04,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:34:05,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:34:05,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:34:05,009 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:34:05,010 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:34:05,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2022-12-13 15:34:07,509 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:34:07,704 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:34:07,705 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2022-12-13 15:34:07,714 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/data/4c4bb3682/dbda093eefd44e2baa7932b1f1676824/FLAG9711c76db [2022-12-13 15:34:08,100 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/data/4c4bb3682/dbda093eefd44e2baa7932b1f1676824 [2022-12-13 15:34:08,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:34:08,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:34:08,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:34:08,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:34:08,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:34:08,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:34:08" (1/1) ... [2022-12-13 15:34:08,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@667ff362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:34:08, skipping insertion in model container [2022-12-13 15:34:08,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:34:08" (1/1) ... [2022-12-13 15:34:08,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:34:08,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:34:08,405 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i[41323,41336] [2022-12-13 15:34:08,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:34:08,440 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:34:08,465 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i[41323,41336] [2022-12-13 15:34:08,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:34:08,514 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:34:08,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:34:08 WrapperNode [2022-12-13 15:34:08,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:34:08,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:34:08,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:34:08,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:34:08,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:34:08" (1/1) ... [2022-12-13 15:34:08,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:34:08" (1/1) ... [2022-12-13 15:34:08,559 INFO L138 Inliner]: procedures = 271, calls = 40, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 336 [2022-12-13 15:34:08,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:34:08,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:34:08,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:34:08,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:34:08,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:34:08" (1/1) ... [2022-12-13 15:34:08,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:34:08" (1/1) ... [2022-12-13 15:34:08,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:34:08" (1/1) ... [2022-12-13 15:34:08,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:34:08" (1/1) ... [2022-12-13 15:34:08,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:34:08" (1/1) ... [2022-12-13 15:34:08,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:34:08" (1/1) ... [2022-12-13 15:34:08,592 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:34:08" (1/1) ... [2022-12-13 15:34:08,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:34:08" (1/1) ... [2022-12-13 15:34:08,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:34:08,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:34:08,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:34:08,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:34:08,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:34:08" (1/1) ... [2022-12-13 15:34:08,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:34:08,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:34:08,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:34:08,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:34:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:34:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:34:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:34:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:34:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 15:34:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:34:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 15:34:08,658 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 15:34:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:34:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:34:08,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:34:08,660 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 15:34:08,777 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:34:08,779 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:34:09,159 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:34:09,167 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:34:09,167 INFO L300 CfgBuilder]: Removed 35 assume(true) statements. [2022-12-13 15:34:09,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:34:09 BoogieIcfgContainer [2022-12-13 15:34:09,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:34:09,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:34:09,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:34:09,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:34:09,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:34:08" (1/3) ... [2022-12-13 15:34:09,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e27855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:34:09, skipping insertion in model container [2022-12-13 15:34:09,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:34:08" (2/3) ... [2022-12-13 15:34:09,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e27855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:34:09, skipping insertion in model container [2022-12-13 15:34:09,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:34:09" (3/3) ... [2022-12-13 15:34:09,175 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_71-funloop_racing.i [2022-12-13 15:34:09,181 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 15:34:09,189 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:34:09,189 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-12-13 15:34:09,189 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 15:34:09,275 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 15:34:09,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 315 places, 357 transitions, 722 flow [2022-12-13 15:34:09,410 INFO L130 PetriNetUnfolder]: 73/565 cut-off events. [2022-12-13 15:34:09,410 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 15:34:09,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 571 conditions, 565 events. 73/565 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3018 event pairs, 0 based on Foata normal form. 0/462 useless extension candidates. Maximal degree in co-relation 317. Up to 8 conditions per place. [2022-12-13 15:34:09,418 INFO L82 GeneralOperation]: Start removeDead. Operand has 315 places, 357 transitions, 722 flow [2022-12-13 15:34:09,425 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 315 places, 357 transitions, 722 flow [2022-12-13 15:34:09,428 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:34:09,436 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 315 places, 357 transitions, 722 flow [2022-12-13 15:34:09,438 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 315 places, 357 transitions, 722 flow [2022-12-13 15:34:09,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 315 places, 357 transitions, 722 flow [2022-12-13 15:34:09,494 INFO L130 PetriNetUnfolder]: 73/565 cut-off events. [2022-12-13 15:34:09,494 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 15:34:09,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 571 conditions, 565 events. 73/565 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3018 event pairs, 0 based on Foata normal form. 0/462 useless extension candidates. Maximal degree in co-relation 317. Up to 8 conditions per place. [2022-12-13 15:34:09,520 INFO L119 LiptonReduction]: Number of co-enabled transitions 44512 [2022-12-13 15:34:11,907 INFO L134 LiptonReduction]: Checked pairs total: 177919 [2022-12-13 15:34:11,907 INFO L136 LiptonReduction]: Total number of compositions: 202 [2022-12-13 15:34:11,921 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:34:11,927 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;@21b8dbb2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:34:11,927 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-12-13 15:34:11,932 INFO L130 PetriNetUnfolder]: 11/48 cut-off events. [2022-12-13 15:34:11,932 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:34:11,932 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:34:11,933 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2022-12-13 15:34:11,933 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-13 15:34:11,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:34:11,937 INFO L85 PathProgramCache]: Analyzing trace with hash 684069942, now seen corresponding path program 1 times [2022-12-13 15:34:11,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:34:11,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837307429] [2022-12-13 15:34:11,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:34:11,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:34:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:12,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 15:34:12,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:34:12,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837307429] [2022-12-13 15:34:12,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837307429] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:34:12,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:34:12,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:34:12,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761152159] [2022-12-13 15:34:12,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:34:12,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:34:12,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:34:12,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:34:12,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:34:12,147 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 559 [2022-12-13 15:34:12,150 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 192 transitions, 392 flow. Second operand has 3 states, 3 states have (on average 311.6666666666667) internal successors, (935), 3 states have internal predecessors, (935), 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) [2022-12-13 15:34:12,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:34:12,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 559 [2022-12-13 15:34:12,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:34:12,503 INFO L130 PetriNetUnfolder]: 822/2927 cut-off events. [2022-12-13 15:34:12,503 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 15:34:12,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4462 conditions, 2927 events. 822/2927 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 23865 event pairs, 684 based on Foata normal form. 350/3014 useless extension candidates. Maximal degree in co-relation 4296. Up to 1527 conditions per place. [2022-12-13 15:34:12,513 INFO L137 encePairwiseOnDemand]: 525/559 looper letters, 63 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2022-12-13 15:34:12,513 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 162 transitions, 462 flow [2022-12-13 15:34:12,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:34:12,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:34:12,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1027 transitions. [2022-12-13 15:34:12,527 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6124031007751938 [2022-12-13 15:34:12,528 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1027 transitions. [2022-12-13 15:34:12,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1027 transitions. [2022-12-13 15:34:12,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:34:12,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1027 transitions. [2022-12-13 15:34:12,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 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) [2022-12-13 15:34:12,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 559.0) internal successors, (2236), 4 states have internal predecessors, (2236), 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) [2022-12-13 15:34:12,547 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 559.0) internal successors, (2236), 4 states have internal predecessors, (2236), 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) [2022-12-13 15:34:12,549 INFO L175 Difference]: Start difference. First operand has 157 places, 192 transitions, 392 flow. Second operand 3 states and 1027 transitions. [2022-12-13 15:34:12,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 162 transitions, 462 flow [2022-12-13 15:34:12,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 162 transitions, 462 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 15:34:12,554 INFO L231 Difference]: Finished difference. Result has 160 places, 162 transitions, 342 flow [2022-12-13 15:34:12,556 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=559, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=160, PETRI_TRANSITIONS=162} [2022-12-13 15:34:12,559 INFO L288 CegarLoopForPetriNet]: 157 programPoint places, 3 predicate places. [2022-12-13 15:34:12,559 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 162 transitions, 342 flow [2022-12-13 15:34:12,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 311.6666666666667) internal successors, (935), 3 states have internal predecessors, (935), 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) [2022-12-13 15:34:12,560 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:34:12,560 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 15:34:12,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:34:12,561 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-13 15:34:12,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:34:12,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1446015701, now seen corresponding path program 1 times [2022-12-13 15:34:12,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:34:12,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967508063] [2022-12-13 15:34:12,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:34:12,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:34:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:12,646 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 15:34:12,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:34:12,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967508063] [2022-12-13 15:34:12,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967508063] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:34:12,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937175267] [2022-12-13 15:34:12,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:34:12,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:34:12,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:34:12,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:34:12,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 15:34:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:12,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:34:12,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:34:12,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 15:34:12,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:34:12,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 15:34:12,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937175267] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:34:12,751 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:34:12,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-13 15:34:12,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304903463] [2022-12-13 15:34:12,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:34:12,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:34:12,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:34:12,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:34:12,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:34:12,774 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 559 [2022-12-13 15:34:12,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 162 transitions, 342 flow. Second operand has 7 states, 7 states have (on average 310.57142857142856) internal successors, (2174), 7 states have internal predecessors, (2174), 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) [2022-12-13 15:34:12,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:34:12,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 559 [2022-12-13 15:34:12,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:34:13,137 INFO L130 PetriNetUnfolder]: 822/2930 cut-off events. [2022-12-13 15:34:13,138 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 15:34:13,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4478 conditions, 2930 events. 822/2930 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 23880 event pairs, 684 based on Foata normal form. 0/2667 useless extension candidates. Maximal degree in co-relation 4466. Up to 1527 conditions per place. [2022-12-13 15:34:13,148 INFO L137 encePairwiseOnDemand]: 556/559 looper letters, 63 selfloop transitions, 5 changer transitions 0/165 dead transitions. [2022-12-13 15:34:13,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 165 transitions, 490 flow [2022-12-13 15:34:13,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:34:13,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:34:13,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1925 transitions. [2022-12-13 15:34:13,156 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5739415623136553 [2022-12-13 15:34:13,156 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1925 transitions. [2022-12-13 15:34:13,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1925 transitions. [2022-12-13 15:34:13,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:34:13,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1925 transitions. [2022-12-13 15:34:13,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 320.8333333333333) internal successors, (1925), 6 states have internal predecessors, (1925), 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) [2022-12-13 15:34:13,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 559.0) internal successors, (3913), 7 states have internal predecessors, (3913), 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) [2022-12-13 15:34:13,164 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 559.0) internal successors, (3913), 7 states have internal predecessors, (3913), 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) [2022-12-13 15:34:13,164 INFO L175 Difference]: Start difference. First operand has 160 places, 162 transitions, 342 flow. Second operand 6 states and 1925 transitions. [2022-12-13 15:34:13,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 165 transitions, 490 flow [2022-12-13 15:34:13,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 165 transitions, 486 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 15:34:13,167 INFO L231 Difference]: Finished difference. Result has 167 places, 165 transitions, 374 flow [2022-12-13 15:34:13,167 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=559, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=374, PETRI_PLACES=167, PETRI_TRANSITIONS=165} [2022-12-13 15:34:13,168 INFO L288 CegarLoopForPetriNet]: 157 programPoint places, 10 predicate places. [2022-12-13 15:34:13,168 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 165 transitions, 374 flow [2022-12-13 15:34:13,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 310.57142857142856) internal successors, (2174), 7 states have internal predecessors, (2174), 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) [2022-12-13 15:34:13,169 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:34:13,169 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2022-12-13 15:34:13,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 15:34:13,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:34:13,370 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-13 15:34:13,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:34:13,371 INFO L85 PathProgramCache]: Analyzing trace with hash -606656138, now seen corresponding path program 2 times [2022-12-13 15:34:13,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:34:13,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948694098] [2022-12-13 15:34:13,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:34:13,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:34:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:13,528 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 15:34:13,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:34:13,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948694098] [2022-12-13 15:34:13,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948694098] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:34:13,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223225903] [2022-12-13 15:34:13,529 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 15:34:13,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:34:13,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:34:13,530 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:34:13,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 15:34:13,597 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 15:34:13,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:34:13,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 15:34:13,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:34:13,614 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 15:34:13,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:34:13,654 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 15:34:13,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223225903] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:34:13,654 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:34:13,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-12-13 15:34:13,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84040922] [2022-12-13 15:34:13,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:34:13,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 15:34:13,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:34:13,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 15:34:13,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:34:13,685 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 559 [2022-12-13 15:34:13,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 165 transitions, 374 flow. Second operand has 13 states, 13 states have (on average 310.3076923076923) internal successors, (4034), 13 states have internal predecessors, (4034), 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) [2022-12-13 15:34:13,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:34:13,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 559 [2022-12-13 15:34:13,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:34:14,040 INFO L130 PetriNetUnfolder]: 822/2936 cut-off events. [2022-12-13 15:34:14,040 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2022-12-13 15:34:14,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4515 conditions, 2936 events. 822/2936 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 23846 event pairs, 684 based on Foata normal form. 6/2680 useless extension candidates. Maximal degree in co-relation 4457. Up to 1527 conditions per place. [2022-12-13 15:34:14,051 INFO L137 encePairwiseOnDemand]: 556/559 looper letters, 63 selfloop transitions, 11 changer transitions 0/171 dead transitions. [2022-12-13 15:34:14,051 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 171 transitions, 558 flow [2022-12-13 15:34:14,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 15:34:14,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 15:34:14,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3788 transitions. [2022-12-13 15:34:14,056 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5646988670244484 [2022-12-13 15:34:14,056 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3788 transitions. [2022-12-13 15:34:14,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3788 transitions. [2022-12-13 15:34:14,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:34:14,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3788 transitions. [2022-12-13 15:34:14,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 315.6666666666667) internal successors, (3788), 12 states have internal predecessors, (3788), 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) [2022-12-13 15:34:14,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 559.0) internal successors, (7267), 13 states have internal predecessors, (7267), 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) [2022-12-13 15:34:14,074 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 559.0) internal successors, (7267), 13 states have internal predecessors, (7267), 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) [2022-12-13 15:34:14,074 INFO L175 Difference]: Start difference. First operand has 167 places, 165 transitions, 374 flow. Second operand 12 states and 3788 transitions. [2022-12-13 15:34:14,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 171 transitions, 558 flow [2022-12-13 15:34:14,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 171 transitions, 544 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-12-13 15:34:14,077 INFO L231 Difference]: Finished difference. Result has 183 places, 171 transitions, 444 flow [2022-12-13 15:34:14,077 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=559, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=444, PETRI_PLACES=183, PETRI_TRANSITIONS=171} [2022-12-13 15:34:14,077 INFO L288 CegarLoopForPetriNet]: 157 programPoint places, 26 predicate places. [2022-12-13 15:34:14,077 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 171 transitions, 444 flow [2022-12-13 15:34:14,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 310.3076923076923) internal successors, (4034), 13 states have internal predecessors, (4034), 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) [2022-12-13 15:34:14,078 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:34:14,079 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 2, 1, 1, 1, 1, 1] [2022-12-13 15:34:14,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 15:34:14,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:34:14,279 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-13 15:34:14,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:34:14,280 INFO L85 PathProgramCache]: Analyzing trace with hash -70116010, now seen corresponding path program 3 times [2022-12-13 15:34:14,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:34:14,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249660810] [2022-12-13 15:34:14,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:34:14,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:34:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:34:14,299 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:34:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:34:14,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:34:14,324 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 15:34:14,324 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2022-12-13 15:34:14,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2022-12-13 15:34:14,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2022-12-13 15:34:14,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2022-12-13 15:34:14,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2022-12-13 15:34:14,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2022-12-13 15:34:14,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2022-12-13 15:34:14,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2022-12-13 15:34:14,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2022-12-13 15:34:14,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2022-12-13 15:34:14,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2022-12-13 15:34:14,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2022-12-13 15:34:14,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2022-12-13 15:34:14,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2022-12-13 15:34:14,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2022-12-13 15:34:14,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2022-12-13 15:34:14,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2022-12-13 15:34:14,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2022-12-13 15:34:14,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2022-12-13 15:34:14,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2022-12-13 15:34:14,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2022-12-13 15:34:14,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2022-12-13 15:34:14,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 15:34:14,328 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2022-12-13 15:34:14,330 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 15:34:14,330 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-13 15:34:14,362 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 15:34:14,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 408 places, 463 transitions, 944 flow [2022-12-13 15:34:14,462 INFO L130 PetriNetUnfolder]: 118/910 cut-off events. [2022-12-13 15:34:14,462 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 15:34:14,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 924 conditions, 910 events. 118/910 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 5695 event pairs, 0 based on Foata normal form. 0/744 useless extension candidates. Maximal degree in co-relation 567. Up to 12 conditions per place. [2022-12-13 15:34:14,472 INFO L82 GeneralOperation]: Start removeDead. Operand has 408 places, 463 transitions, 944 flow [2022-12-13 15:34:14,478 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 408 places, 463 transitions, 944 flow [2022-12-13 15:34:14,478 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:34:14,478 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 408 places, 463 transitions, 944 flow [2022-12-13 15:34:14,479 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 408 places, 463 transitions, 944 flow [2022-12-13 15:34:14,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 408 places, 463 transitions, 944 flow [2022-12-13 15:34:14,577 INFO L130 PetriNetUnfolder]: 118/910 cut-off events. [2022-12-13 15:34:14,577 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 15:34:14,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 924 conditions, 910 events. 118/910 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 5695 event pairs, 0 based on Foata normal form. 0/744 useless extension candidates. Maximal degree in co-relation 567. Up to 12 conditions per place. [2022-12-13 15:34:14,609 INFO L119 LiptonReduction]: Number of co-enabled transitions 112944 [2022-12-13 15:34:17,802 INFO L134 LiptonReduction]: Checked pairs total: 457698 [2022-12-13 15:34:17,802 INFO L136 LiptonReduction]: Total number of compositions: 249 [2022-12-13 15:34:17,805 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:34:17,806 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;@21b8dbb2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:34:17,806 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-12-13 15:34:17,811 INFO L130 PetriNetUnfolder]: 26/116 cut-off events. [2022-12-13 15:34:17,811 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 15:34:17,811 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:34:17,811 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:34:17,811 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 15:34:17,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:34:17,811 INFO L85 PathProgramCache]: Analyzing trace with hash -246210047, now seen corresponding path program 1 times [2022-12-13 15:34:17,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:34:17,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528370094] [2022-12-13 15:34:17,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:34:17,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:34:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:17,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:34:17,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:34:17,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528370094] [2022-12-13 15:34:17,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528370094] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:34:17,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:34:17,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:34:17,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590153029] [2022-12-13 15:34:17,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:34:17,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:34:17,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:34:17,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:34:17,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:34:17,843 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 401 out of 712 [2022-12-13 15:34:17,844 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 260 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 403.0) internal successors, (1209), 3 states have internal predecessors, (1209), 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) [2022-12-13 15:34:17,844 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:34:17,844 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 401 of 712 [2022-12-13 15:34:17,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:34:23,508 INFO L130 PetriNetUnfolder]: 33709/77910 cut-off events. [2022-12-13 15:34:23,509 INFO L131 PetriNetUnfolder]: For 189/189 co-relation queries the response was YES. [2022-12-13 15:34:23,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126306 conditions, 77910 events. 33709/77910 cut-off events. For 189/189 co-relation queries the response was YES. Maximal size of possible extension queue 1927. Compared 924533 event pairs, 29312 based on Foata normal form. 10833/80411 useless extension candidates. Maximal degree in co-relation 54134. Up to 48273 conditions per place. [2022-12-13 15:34:23,822 INFO L137 encePairwiseOnDemand]: 667/712 looper letters, 86 selfloop transitions, 2 changer transitions 0/219 dead transitions. [2022-12-13 15:34:23,822 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 219 transitions, 632 flow [2022-12-13 15:34:23,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:34:23,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:34:23,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1334 transitions. [2022-12-13 15:34:23,824 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6245318352059925 [2022-12-13 15:34:23,824 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1334 transitions. [2022-12-13 15:34:23,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1334 transitions. [2022-12-13 15:34:23,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:34:23,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1334 transitions. [2022-12-13 15:34:23,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 444.6666666666667) internal successors, (1334), 3 states have internal predecessors, (1334), 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) [2022-12-13 15:34:23,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 712.0) internal successors, (2848), 4 states have internal predecessors, (2848), 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) [2022-12-13 15:34:23,830 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 712.0) internal successors, (2848), 4 states have internal predecessors, (2848), 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) [2022-12-13 15:34:23,830 INFO L175 Difference]: Start difference. First operand has 213 places, 260 transitions, 538 flow. Second operand 3 states and 1334 transitions. [2022-12-13 15:34:23,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 219 transitions, 632 flow [2022-12-13 15:34:23,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 219 transitions, 632 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 15:34:23,833 INFO L231 Difference]: Finished difference. Result has 216 places, 219 transitions, 466 flow [2022-12-13 15:34:23,833 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=712, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=466, PETRI_PLACES=216, PETRI_TRANSITIONS=219} [2022-12-13 15:34:23,834 INFO L288 CegarLoopForPetriNet]: 213 programPoint places, 3 predicate places. [2022-12-13 15:34:23,834 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 219 transitions, 466 flow [2022-12-13 15:34:23,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 403.0) internal successors, (1209), 3 states have internal predecessors, (1209), 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) [2022-12-13 15:34:23,835 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:34:23,835 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:34:23,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 15:34:23,835 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 15:34:23,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:34:23,835 INFO L85 PathProgramCache]: Analyzing trace with hash 13675347, now seen corresponding path program 1 times [2022-12-13 15:34:23,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:34:23,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298782708] [2022-12-13 15:34:23,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:34:23,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:34:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:23,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:34:23,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:34:23,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298782708] [2022-12-13 15:34:23,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298782708] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:34:23,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931718385] [2022-12-13 15:34:23,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:34:23,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:34:23,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:34:23,868 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:34:23,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 15:34:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:23,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 15:34:23,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:34:23,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 15:34:23,941 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:34:23,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931718385] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:34:23,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:34:23,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-12-13 15:34:23,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927674141] [2022-12-13 15:34:23,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:34:23,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:34:23,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:34:23,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:34:23,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:34:23,950 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 401 out of 712 [2022-12-13 15:34:23,951 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 219 transitions, 466 flow. Second operand has 3 states, 3 states have (on average 403.3333333333333) internal successors, (1210), 3 states have internal predecessors, (1210), 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) [2022-12-13 15:34:23,951 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:34:23,951 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 401 of 712 [2022-12-13 15:34:23,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:34:29,685 INFO L130 PetriNetUnfolder]: 33724/78062 cut-off events. [2022-12-13 15:34:29,685 INFO L131 PetriNetUnfolder]: For 172/172 co-relation queries the response was YES. [2022-12-13 15:34:29,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126479 conditions, 78062 events. 33724/78062 cut-off events. For 172/172 co-relation queries the response was YES. Maximal size of possible extension queue 1962. Compared 930602 event pairs, 23700 based on Foata normal form. 0/69794 useless extension candidates. Maximal degree in co-relation 126466. Up to 48259 conditions per place. [2022-12-13 15:34:30,052 INFO L137 encePairwiseOnDemand]: 709/712 looper letters, 108 selfloop transitions, 2 changer transitions 0/241 dead transitions. [2022-12-13 15:34:30,052 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 241 transitions, 730 flow [2022-12-13 15:34:30,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:34:30,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:34:30,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1313 transitions. [2022-12-13 15:34:30,055 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6147003745318352 [2022-12-13 15:34:30,056 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1313 transitions. [2022-12-13 15:34:30,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1313 transitions. [2022-12-13 15:34:30,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:34:30,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1313 transitions. [2022-12-13 15:34:30,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 437.6666666666667) internal successors, (1313), 3 states have internal predecessors, (1313), 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) [2022-12-13 15:34:30,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 712.0) internal successors, (2848), 4 states have internal predecessors, (2848), 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) [2022-12-13 15:34:30,062 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 712.0) internal successors, (2848), 4 states have internal predecessors, (2848), 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) [2022-12-13 15:34:30,062 INFO L175 Difference]: Start difference. First operand has 216 places, 219 transitions, 466 flow. Second operand 3 states and 1313 transitions. [2022-12-13 15:34:30,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 241 transitions, 730 flow [2022-12-13 15:34:30,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 241 transitions, 726 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 15:34:30,067 INFO L231 Difference]: Finished difference. Result has 218 places, 220 transitions, 474 flow [2022-12-13 15:34:30,067 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=712, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=474, PETRI_PLACES=218, PETRI_TRANSITIONS=220} [2022-12-13 15:34:30,067 INFO L288 CegarLoopForPetriNet]: 213 programPoint places, 5 predicate places. [2022-12-13 15:34:30,067 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 220 transitions, 474 flow [2022-12-13 15:34:30,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 403.3333333333333) internal successors, (1210), 3 states have internal predecessors, (1210), 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) [2022-12-13 15:34:30,068 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:34:30,068 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 15:34:30,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 15:34:30,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:34:30,269 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 15:34:30,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:34:30,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1112385365, now seen corresponding path program 1 times [2022-12-13 15:34:30,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:34:30,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271449769] [2022-12-13 15:34:30,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:34:30,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:34:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:30,322 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 15:34:30,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:34:30,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271449769] [2022-12-13 15:34:30,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271449769] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:34:30,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416025738] [2022-12-13 15:34:30,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:34:30,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:34:30,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:34:30,323 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:34:30,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 15:34:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:30,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:34:30,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:34:30,402 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 15:34:30,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:34:30,415 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 15:34:30,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416025738] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:34:30,416 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:34:30,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-13 15:34:30,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847694998] [2022-12-13 15:34:30,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:34:30,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:34:30,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:34:30,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:34:30,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:34:30,438 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 712 [2022-12-13 15:34:30,443 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 220 transitions, 474 flow. Second operand has 7 states, 7 states have (on average 401.7142857142857) internal successors, (2812), 7 states have internal predecessors, (2812), 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) [2022-12-13 15:34:30,443 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:34:30,443 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 712 [2022-12-13 15:34:30,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:34:36,303 INFO L130 PetriNetUnfolder]: 33724/78411 cut-off events. [2022-12-13 15:34:36,303 INFO L131 PetriNetUnfolder]: For 986/986 co-relation queries the response was YES. [2022-12-13 15:34:36,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127648 conditions, 78411 events. 33724/78411 cut-off events. For 986/986 co-relation queries the response was YES. Maximal size of possible extension queue 1970. Compared 934754 event pairs, 29312 based on Foata normal form. 3/70313 useless extension candidates. Maximal degree in co-relation 127620. Up to 48281 conditions per place. [2022-12-13 15:34:36,728 INFO L137 encePairwiseOnDemand]: 709/712 looper letters, 87 selfloop transitions, 5 changer transitions 0/223 dead transitions. [2022-12-13 15:34:36,728 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 223 transitions, 670 flow [2022-12-13 15:34:36,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:34:36,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:34:36,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2494 transitions. [2022-12-13 15:34:36,734 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5838014981273408 [2022-12-13 15:34:36,734 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2494 transitions. [2022-12-13 15:34:36,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2494 transitions. [2022-12-13 15:34:36,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:34:36,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2494 transitions. [2022-12-13 15:34:36,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 415.6666666666667) internal successors, (2494), 6 states have internal predecessors, (2494), 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) [2022-12-13 15:34:36,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 712.0) internal successors, (4984), 7 states have internal predecessors, (4984), 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) [2022-12-13 15:34:36,746 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 712.0) internal successors, (4984), 7 states have internal predecessors, (4984), 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) [2022-12-13 15:34:36,746 INFO L175 Difference]: Start difference. First operand has 218 places, 220 transitions, 474 flow. Second operand 6 states and 2494 transitions. [2022-12-13 15:34:36,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 223 transitions, 670 flow [2022-12-13 15:34:36,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 223 transitions, 668 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:34:36,751 INFO L231 Difference]: Finished difference. Result has 225 places, 223 transitions, 508 flow [2022-12-13 15:34:36,752 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=712, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=508, PETRI_PLACES=225, PETRI_TRANSITIONS=223} [2022-12-13 15:34:36,752 INFO L288 CegarLoopForPetriNet]: 213 programPoint places, 12 predicate places. [2022-12-13 15:34:36,752 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 223 transitions, 508 flow [2022-12-13 15:34:36,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 401.7142857142857) internal successors, (2812), 7 states have internal predecessors, (2812), 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) [2022-12-13 15:34:36,753 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:34:36,753 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1] [2022-12-13 15:34:36,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 15:34:36,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:34:36,955 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 15:34:36,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:34:36,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1976346728, now seen corresponding path program 2 times [2022-12-13 15:34:36,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:34:36,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390805554] [2022-12-13 15:34:36,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:34:36,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:34:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:37,065 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 15:34:37,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:34:37,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390805554] [2022-12-13 15:34:37,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390805554] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:34:37,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929055609] [2022-12-13 15:34:37,066 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 15:34:37,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:34:37,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:34:37,067 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:34:37,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 15:34:37,140 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 15:34:37,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:34:37,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 15:34:37,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:34:37,156 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 15:34:37,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:34:37,199 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 15:34:37,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929055609] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:34:37,199 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:34:37,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-12-13 15:34:37,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897761257] [2022-12-13 15:34:37,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:34:37,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 15:34:37,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:34:37,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 15:34:37,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:34:37,233 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 712 [2022-12-13 15:34:37,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 223 transitions, 508 flow. Second operand has 13 states, 13 states have (on average 401.38461538461536) internal successors, (5218), 13 states have internal predecessors, (5218), 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) [2022-12-13 15:34:37,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:34:37,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 712 [2022-12-13 15:34:37,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:34:43,901 INFO L130 PetriNetUnfolder]: 33724/78417 cut-off events. [2022-12-13 15:34:43,901 INFO L131 PetriNetUnfolder]: For 1020/1020 co-relation queries the response was YES. [2022-12-13 15:34:44,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127667 conditions, 78417 events. 33724/78417 cut-off events. For 1020/1020 co-relation queries the response was YES. Maximal size of possible extension queue 1969. Compared 935457 event pairs, 29312 based on Foata normal form. 6/70322 useless extension candidates. Maximal degree in co-relation 127607. Up to 48281 conditions per place. [2022-12-13 15:34:44,273 INFO L137 encePairwiseOnDemand]: 709/712 looper letters, 87 selfloop transitions, 11 changer transitions 0/229 dead transitions. [2022-12-13 15:34:44,273 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 229 transitions, 740 flow [2022-12-13 15:34:44,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 15:34:44,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 15:34:44,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4903 transitions. [2022-12-13 15:34:44,279 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5738529962546817 [2022-12-13 15:34:44,279 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4903 transitions. [2022-12-13 15:34:44,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4903 transitions. [2022-12-13 15:34:44,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:34:44,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4903 transitions. [2022-12-13 15:34:44,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 408.5833333333333) internal successors, (4903), 12 states have internal predecessors, (4903), 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) [2022-12-13 15:34:44,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 712.0) internal successors, (9256), 13 states have internal predecessors, (9256), 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) [2022-12-13 15:34:44,293 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 712.0) internal successors, (9256), 13 states have internal predecessors, (9256), 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) [2022-12-13 15:34:44,293 INFO L175 Difference]: Start difference. First operand has 225 places, 223 transitions, 508 flow. Second operand 12 states and 4903 transitions. [2022-12-13 15:34:44,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 229 transitions, 740 flow [2022-12-13 15:34:44,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 229 transitions, 726 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-12-13 15:34:44,297 INFO L231 Difference]: Finished difference. Result has 241 places, 229 transitions, 578 flow [2022-12-13 15:34:44,297 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=712, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=578, PETRI_PLACES=241, PETRI_TRANSITIONS=229} [2022-12-13 15:34:44,298 INFO L288 CegarLoopForPetriNet]: 213 programPoint places, 28 predicate places. [2022-12-13 15:34:44,298 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 229 transitions, 578 flow [2022-12-13 15:34:44,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 401.38461538461536) internal successors, (5218), 13 states have internal predecessors, (5218), 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) [2022-12-13 15:34:44,299 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:34:44,299 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 3, 2, 2, 1, 1, 1, 1, 1] [2022-12-13 15:34:44,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 15:34:44,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b553793-b8a1-44f2-bef5-e32e4c34d75a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-13 15:34:44,500 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 15:34:44,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:34:44,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1241207112, now seen corresponding path program 3 times [2022-12-13 15:34:44,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:34:44,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239902181] [2022-12-13 15:34:44,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:34:44,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:34:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:34:44,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:34:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:34:44,561 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:34:44,561 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 15:34:44,561 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 27 remaining) [2022-12-13 15:34:44,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2022-12-13 15:34:44,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2022-12-13 15:34:44,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2022-12-13 15:34:44,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2022-12-13 15:34:44,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2022-12-13 15:34:44,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2022-12-13 15:34:44,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2022-12-13 15:34:44,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2022-12-13 15:34:44,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2022-12-13 15:34:44,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2022-12-13 15:34:44,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2022-12-13 15:34:44,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2022-12-13 15:34:44,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2022-12-13 15:34:44,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2022-12-13 15:34:44,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2022-12-13 15:34:44,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 27 remaining) [2022-12-13 15:34:44,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 27 remaining) [2022-12-13 15:34:44,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2022-12-13 15:34:44,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2022-12-13 15:34:44,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2022-12-13 15:34:44,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2022-12-13 15:34:44,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2022-12-13 15:34:44,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2022-12-13 15:34:44,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2022-12-13 15:34:44,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2022-12-13 15:34:44,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2022-12-13 15:34:44,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 15:34:44,565 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2022-12-13 15:34:44,565 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 15:34:44,565 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-12-13 15:34:44,593 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-13 15:34:44,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 501 places, 569 transitions, 1168 flow [2022-12-13 15:34:44,770 INFO L130 PetriNetUnfolder]: 168/1300 cut-off events. [2022-12-13 15:34:44,770 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-12-13 15:34:44,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1328 conditions, 1300 events. 168/1300 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8674 event pairs, 1 based on Foata normal form. 0/1065 useless extension candidates. Maximal degree in co-relation 918. Up to 16 conditions per place. [2022-12-13 15:34:44,790 INFO L82 GeneralOperation]: Start removeDead. Operand has 501 places, 569 transitions, 1168 flow [2022-12-13 15:34:44,799 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 501 places, 569 transitions, 1168 flow [2022-12-13 15:34:44,800 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:34:44,800 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 501 places, 569 transitions, 1168 flow [2022-12-13 15:34:44,800 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 501 places, 569 transitions, 1168 flow [2022-12-13 15:34:44,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 501 places, 569 transitions, 1168 flow [2022-12-13 15:34:44,967 INFO L130 PetriNetUnfolder]: 168/1300 cut-off events. [2022-12-13 15:34:44,967 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-12-13 15:34:44,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1328 conditions, 1300 events. 168/1300 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8674 event pairs, 1 based on Foata normal form. 0/1065 useless extension candidates. Maximal degree in co-relation 918. Up to 16 conditions per place. [2022-12-13 15:34:45,055 INFO L119 LiptonReduction]: Number of co-enabled transitions 202800 [2022-12-13 15:34:47,930 INFO L134 LiptonReduction]: Checked pairs total: 816429 [2022-12-13 15:34:47,930 INFO L136 LiptonReduction]: Total number of compositions: 304 [2022-12-13 15:34:47,931 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:34:47,932 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;@21b8dbb2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:34:47,932 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2022-12-13 15:34:47,936 INFO L130 PetriNetUnfolder]: 26/116 cut-off events. [2022-12-13 15:34:47,936 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 15:34:47,936 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:34:47,936 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:34:47,937 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2022-12-13 15:34:47,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:34:47,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1391352082, now seen corresponding path program 1 times [2022-12-13 15:34:47,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:34:47,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873370045] [2022-12-13 15:34:47,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:34:47,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:34:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:34:47,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:34:47,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:34:47,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873370045] [2022-12-13 15:34:47,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873370045] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:34:47,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:34:47,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:34:47,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197799026] [2022-12-13 15:34:47,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:34:47,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:34:47,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:34:47,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:34:47,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:34:47,965 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 492 out of 873 [2022-12-13 15:34:47,966 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 321 transitions, 672 flow. Second operand has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 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) [2022-12-13 15:34:47,967 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:34:47,967 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 492 of 873 [2022-12-13 15:34:47,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand