./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/unroll-cond-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_46d440e2-79d0-4245-9439-0e273d6a8369/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d440e2-79d0-4245-9439-0e273d6a8369/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d440e2-79d0-4245-9439-0e273d6a8369/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d440e2-79d0-4245-9439-0e273d6a8369/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/unroll-cond-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d440e2-79d0-4245-9439-0e273d6a8369/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d440e2-79d0-4245-9439-0e273d6a8369/bin/uautomizer-ug76WZFUDN --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 99c42ba3d1f6c70520bbcf0a3136609166f98fb21063bda215f7779ff0bb27ca --- 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-6b4ec56 [2022-11-20 09:31:21,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:31:21,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:31:21,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:31:21,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:31:21,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:31:21,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:31:21,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:31:21,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:31:21,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:31:21,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:31:21,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:31:21,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:31:21,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:31:21,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:31:21,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:31:21,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:31:21,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:31:21,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:31:21,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:31:21,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:31:21,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:31:21,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:31:21,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:31:21,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:31:21,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:31:21,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:31:21,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:31:21,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:31:21,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:31:21,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:31:21,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:31:21,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:31:21,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:31:21,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:31:21,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:31:21,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:31:21,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:31:21,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:31:21,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:31:21,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:31:21,712 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d440e2-79d0-4245-9439-0e273d6a8369/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 09:31:21,742 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:31:21,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:31:21,743 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:31:21,743 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:31:21,744 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:31:21,745 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:31:21,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:31:21,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:31:21,746 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:31:21,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:31:21,747 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:31:21,747 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:31:21,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:31:21,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:31:21,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:31:21,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:31:21,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:31:21,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:31:21,749 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 09:31:21,750 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:31:21,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:31:21,750 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:31:21,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:31:21,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:31:21,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:31:21,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:31:21,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:31:21,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:31:21,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:31:21,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:31:21,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:31:21,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:31:21,754 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:31:21,754 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:31:21,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:31:21,754 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d440e2-79d0-4245-9439-0e273d6a8369/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d440e2-79d0-4245-9439-0e273d6a8369/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99c42ba3d1f6c70520bbcf0a3136609166f98fb21063bda215f7779ff0bb27ca [2022-11-20 09:31:22,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:31:22,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:31:22,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:31:22,163 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:31:22,176 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:31:22,178 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d440e2-79d0-4245-9439-0e273d6a8369/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/unroll-cond-2.wvr.c [2022-11-20 09:31:25,665 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:31:25,902 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:31:25,903 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d440e2-79d0-4245-9439-0e273d6a8369/sv-benchmarks/c/weaver/unroll-cond-2.wvr.c [2022-11-20 09:31:25,917 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d440e2-79d0-4245-9439-0e273d6a8369/bin/uautomizer-ug76WZFUDN/data/a962349d5/0f68383709a64532af4e95e047e59eb1/FLAG117b12f9c [2022-11-20 09:31:25,934 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d440e2-79d0-4245-9439-0e273d6a8369/bin/uautomizer-ug76WZFUDN/data/a962349d5/0f68383709a64532af4e95e047e59eb1 [2022-11-20 09:31:25,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:31:25,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:31:25,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:31:25,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:31:25,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:31:25,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:31:25" (1/1) ... [2022-11-20 09:31:25,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7768c073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:25, skipping insertion in model container [2022-11-20 09:31:25,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:31:25" (1/1) ... [2022-11-20 09:31:25,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:31:25,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:31:26,263 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_46d440e2-79d0-4245-9439-0e273d6a8369/sv-benchmarks/c/weaver/unroll-cond-2.wvr.c[2474,2487] [2022-11-20 09:31:26,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:31:26,282 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:31:26,322 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_46d440e2-79d0-4245-9439-0e273d6a8369/sv-benchmarks/c/weaver/unroll-cond-2.wvr.c[2474,2487] [2022-11-20 09:31:26,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:31:26,353 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:31:26,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:26 WrapperNode [2022-11-20 09:31:26,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:31:26,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:31:26,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:31:26,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:31:26,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:26" (1/1) ... [2022-11-20 09:31:26,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:26" (1/1) ... [2022-11-20 09:31:26,427 INFO L138 Inliner]: procedures = 24, calls = 33, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 276 [2022-11-20 09:31:26,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:31:26,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:31:26,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:31:26,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:31:26,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:26" (1/1) ... [2022-11-20 09:31:26,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:26" (1/1) ... [2022-11-20 09:31:26,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:26" (1/1) ... [2022-11-20 09:31:26,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:26" (1/1) ... [2022-11-20 09:31:26,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:26" (1/1) ... [2022-11-20 09:31:26,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:26" (1/1) ... [2022-11-20 09:31:26,509 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:26" (1/1) ... [2022-11-20 09:31:26,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:26" (1/1) ... [2022-11-20 09:31:26,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:31:26,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:31:26,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:31:26,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:31:26,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:26" (1/1) ... [2022-11-20 09:31:26,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:31:26,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d440e2-79d0-4245-9439-0e273d6a8369/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:26,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d440e2-79d0-4245-9439-0e273d6a8369/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:26,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d440e2-79d0-4245-9439-0e273d6a8369/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:31:26,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:31:26,630 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 09:31:26,630 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 09:31:26,631 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 09:31:26,631 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 09:31:26,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:31:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:31:26,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:31:26,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:31:26,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:31:26,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:31:26,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:31:26,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:31:26,643 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 09:31:26,805 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:31:26,808 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:31:27,599 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:31:27,613 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:31:27,614 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 09:31:27,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:31:27 BoogieIcfgContainer [2022-11-20 09:31:27,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:31:27,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:31:27,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:31:27,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:31:27,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:31:25" (1/3) ... [2022-11-20 09:31:27,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e1d88f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:31:27, skipping insertion in model container [2022-11-20 09:31:27,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:26" (2/3) ... [2022-11-20 09:31:27,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e1d88f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:31:27, skipping insertion in model container [2022-11-20 09:31:27,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:31:27" (3/3) ... [2022-11-20 09:31:27,636 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-2.wvr.c [2022-11-20 09:31:27,647 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 09:31:27,660 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:31:27,660 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2022-11-20 09:31:27,661 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:31:27,914 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 09:31:27,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 346 places, 358 transitions, 732 flow [2022-11-20 09:31:28,297 INFO L130 PetriNetUnfolder]: 19/356 cut-off events. [2022-11-20 09:31:28,298 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 09:31:28,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 356 events. 19/356 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 794 event pairs, 0 based on Foata normal form. 0/296 useless extension candidates. Maximal degree in co-relation 222. Up to 2 conditions per place. [2022-11-20 09:31:28,314 INFO L82 GeneralOperation]: Start removeDead. Operand has 346 places, 358 transitions, 732 flow [2022-11-20 09:31:28,327 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 327 places, 338 transitions, 688 flow [2022-11-20 09:31:28,339 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:31:28,347 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;@29955d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:31:28,348 INFO L358 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2022-11-20 09:31:28,360 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-11-20 09:31:28,360 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:31:28,360 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:28,361 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:28,362 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 09:31:28,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:28,368 INFO L85 PathProgramCache]: Analyzing trace with hash -332554685, now seen corresponding path program 1 times [2022-11-20 09:31:28,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:28,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082416313] [2022-11-20 09:31:28,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:28,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:28,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:28,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:28,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082416313] [2022-11-20 09:31:28,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082416313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:28,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:28,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:31:28,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692096907] [2022-11-20 09:31:28,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:28,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:31:28,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:28,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:31:28,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:31:28,759 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 358 [2022-11-20 09:31:28,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 338 transitions, 688 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:28,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:28,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 358 [2022-11-20 09:31:28,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:29,219 INFO L130 PetriNetUnfolder]: 64/1048 cut-off events. [2022-11-20 09:31:29,220 INFO L131 PetriNetUnfolder]: For 53/101 co-relation queries the response was YES. [2022-11-20 09:31:29,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1153 conditions, 1048 events. 64/1048 cut-off events. For 53/101 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 6151 event pairs, 27 based on Foata normal form. 22/852 useless extension candidates. Maximal degree in co-relation 958. Up to 82 conditions per place. [2022-11-20 09:31:29,236 INFO L137 encePairwiseOnDemand]: 345/358 looper letters, 16 selfloop transitions, 2 changer transitions 3/327 dead transitions. [2022-11-20 09:31:29,237 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 327 transitions, 702 flow [2022-11-20 09:31:29,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:31:29,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:31:29,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1010 transitions. [2022-11-20 09:31:29,266 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9404096834264432 [2022-11-20 09:31:29,268 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1010 transitions. [2022-11-20 09:31:29,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1010 transitions. [2022-11-20 09:31:29,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:29,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1010 transitions. [2022-11-20 09:31:29,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.6666666666667) internal successors, (1010), 3 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:29,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:29,301 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:29,303 INFO L175 Difference]: Start difference. First operand has 327 places, 338 transitions, 688 flow. Second operand 3 states and 1010 transitions. [2022-11-20 09:31:29,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 327 transitions, 702 flow [2022-11-20 09:31:29,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 327 transitions, 694 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 09:31:29,323 INFO L231 Difference]: Finished difference. Result has 324 places, 324 transitions, 656 flow [2022-11-20 09:31:29,326 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=656, PETRI_PLACES=324, PETRI_TRANSITIONS=324} [2022-11-20 09:31:29,334 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -3 predicate places. [2022-11-20 09:31:29,334 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 324 transitions, 656 flow [2022-11-20 09:31:29,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:29,336 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:29,336 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:29,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:31:29,337 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 09:31:29,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:29,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1953276396, now seen corresponding path program 1 times [2022-11-20 09:31:29,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:29,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267904441] [2022-11-20 09:31:29,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:29,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:29,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:29,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:29,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267904441] [2022-11-20 09:31:29,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267904441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:29,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:29,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:31:29,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72230237] [2022-11-20 09:31:29,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:29,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:31:29,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:29,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:31:29,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:31:29,485 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 358 [2022-11-20 09:31:29,489 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 324 transitions, 656 flow. Second operand has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:29,489 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:29,490 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 358 [2022-11-20 09:31:29,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:29,906 INFO L130 PetriNetUnfolder]: 98/1197 cut-off events. [2022-11-20 09:31:29,906 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-20 09:31:29,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1342 conditions, 1197 events. 98/1197 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 6797 event pairs, 39 based on Foata normal form. 0/949 useless extension candidates. Maximal degree in co-relation 1311. Up to 134 conditions per place. [2022-11-20 09:31:29,922 INFO L137 encePairwiseOnDemand]: 355/358 looper letters, 25 selfloop transitions, 2 changer transitions 0/323 dead transitions. [2022-11-20 09:31:29,922 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 323 transitions, 708 flow [2022-11-20 09:31:29,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:31:29,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:31:29,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 982 transitions. [2022-11-20 09:31:29,927 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9143389199255121 [2022-11-20 09:31:29,928 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 982 transitions. [2022-11-20 09:31:29,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 982 transitions. [2022-11-20 09:31:29,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:29,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 982 transitions. [2022-11-20 09:31:29,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:29,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:29,936 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:29,936 INFO L175 Difference]: Start difference. First operand has 324 places, 324 transitions, 656 flow. Second operand 3 states and 982 transitions. [2022-11-20 09:31:29,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 323 transitions, 708 flow [2022-11-20 09:31:29,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 323 transitions, 704 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:31:29,949 INFO L231 Difference]: Finished difference. Result has 320 places, 323 transitions, 654 flow [2022-11-20 09:31:29,950 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=654, PETRI_PLACES=320, PETRI_TRANSITIONS=323} [2022-11-20 09:31:29,952 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -7 predicate places. [2022-11-20 09:31:29,952 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 323 transitions, 654 flow [2022-11-20 09:31:29,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:29,954 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:29,955 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:29,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:31:29,955 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 09:31:29,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:29,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1234565099, now seen corresponding path program 1 times [2022-11-20 09:31:29,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:29,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822000106] [2022-11-20 09:31:29,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:29,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:30,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:30,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:30,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822000106] [2022-11-20 09:31:30,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822000106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:30,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:30,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:31:30,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438288627] [2022-11-20 09:31:30,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:30,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:31:30,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:30,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:31:30,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:31:30,039 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 358 [2022-11-20 09:31:30,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 323 transitions, 654 flow. Second operand has 3 states, 3 states have (on average 322.3333333333333) internal successors, (967), 3 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:30,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:30,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 358 [2022-11-20 09:31:30,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:30,292 INFO L130 PetriNetUnfolder]: 66/1009 cut-off events. [2022-11-20 09:31:30,293 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-20 09:31:30,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1097 conditions, 1009 events. 66/1009 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5274 event pairs, 20 based on Foata normal form. 0/826 useless extension candidates. Maximal degree in co-relation 1058. Up to 77 conditions per place. [2022-11-20 09:31:30,306 INFO L137 encePairwiseOnDemand]: 351/358 looper letters, 17 selfloop transitions, 1 changer transitions 0/317 dead transitions. [2022-11-20 09:31:30,306 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 317 transitions, 678 flow [2022-11-20 09:31:30,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:31:30,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:31:30,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 987 transitions. [2022-11-20 09:31:30,310 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9189944134078212 [2022-11-20 09:31:30,310 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 987 transitions. [2022-11-20 09:31:30,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 987 transitions. [2022-11-20 09:31:30,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:30,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 987 transitions. [2022-11-20 09:31:30,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.0) internal successors, (987), 3 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:30,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:30,319 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:30,319 INFO L175 Difference]: Start difference. First operand has 320 places, 323 transitions, 654 flow. Second operand 3 states and 987 transitions. [2022-11-20 09:31:30,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 317 transitions, 678 flow [2022-11-20 09:31:30,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 317 transitions, 674 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:31:30,327 INFO L231 Difference]: Finished difference. Result has 314 places, 317 transitions, 640 flow [2022-11-20 09:31:30,328 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=640, PETRI_PLACES=314, PETRI_TRANSITIONS=317} [2022-11-20 09:31:30,329 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -13 predicate places. [2022-11-20 09:31:30,329 INFO L495 AbstractCegarLoop]: Abstraction has has 314 places, 317 transitions, 640 flow [2022-11-20 09:31:30,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 322.3333333333333) internal successors, (967), 3 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:30,331 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:30,331 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:30,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:31:30,331 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 09:31:30,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:30,332 INFO L85 PathProgramCache]: Analyzing trace with hash 658416831, now seen corresponding path program 1 times [2022-11-20 09:31:30,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:30,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663691049] [2022-11-20 09:31:30,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:30,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:30,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:30,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:30,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663691049] [2022-11-20 09:31:30,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663691049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:30,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:30,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:31:30,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922588850] [2022-11-20 09:31:30,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:30,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:31:30,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:30,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:31:30,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:31:30,447 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 358 [2022-11-20 09:31:30,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 317 transitions, 640 flow. Second operand has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:30,449 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:30,449 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 358 [2022-11-20 09:31:30,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:30,697 INFO L130 PetriNetUnfolder]: 94/1116 cut-off events. [2022-11-20 09:31:30,698 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-20 09:31:30,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1251 conditions, 1116 events. 94/1116 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 6142 event pairs, 39 based on Foata normal form. 0/905 useless extension candidates. Maximal degree in co-relation 1213. Up to 125 conditions per place. [2022-11-20 09:31:30,711 INFO L137 encePairwiseOnDemand]: 355/358 looper letters, 19 selfloop transitions, 2 changer transitions 0/316 dead transitions. [2022-11-20 09:31:30,712 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 316 transitions, 680 flow [2022-11-20 09:31:30,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:31:30,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:31:30,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 994 transitions. [2022-11-20 09:31:30,716 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.925512104283054 [2022-11-20 09:31:30,716 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 994 transitions. [2022-11-20 09:31:30,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 994 transitions. [2022-11-20 09:31:30,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:30,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 994 transitions. [2022-11-20 09:31:30,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 331.3333333333333) internal successors, (994), 3 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:30,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:30,730 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:30,730 INFO L175 Difference]: Start difference. First operand has 314 places, 317 transitions, 640 flow. Second operand 3 states and 994 transitions. [2022-11-20 09:31:30,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 316 transitions, 680 flow [2022-11-20 09:31:30,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 316 transitions, 679 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:31:30,739 INFO L231 Difference]: Finished difference. Result has 314 places, 316 transitions, 641 flow [2022-11-20 09:31:30,740 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=641, PETRI_PLACES=314, PETRI_TRANSITIONS=316} [2022-11-20 09:31:30,742 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -13 predicate places. [2022-11-20 09:31:30,748 INFO L495 AbstractCegarLoop]: Abstraction has has 314 places, 316 transitions, 641 flow [2022-11-20 09:31:30,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:30,749 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:30,749 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:30,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:31:30,750 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 09:31:30,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:30,752 INFO L85 PathProgramCache]: Analyzing trace with hash -704799640, now seen corresponding path program 1 times [2022-11-20 09:31:30,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:30,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638725784] [2022-11-20 09:31:30,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:30,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:31,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:31,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:31,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638725784] [2022-11-20 09:31:31,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638725784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:31,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:31,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:31:31,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389576613] [2022-11-20 09:31:31,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:31,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:31:31,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:31,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:31:31,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:31:31,562 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 358 [2022-11-20 09:31:31,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 316 transitions, 641 flow. Second operand has 6 states, 6 states have (on average 290.8333333333333) internal successors, (1745), 6 states have internal predecessors, (1745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:31,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:31,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 358 [2022-11-20 09:31:31,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:34,191 INFO L130 PetriNetUnfolder]: 2191/10985 cut-off events. [2022-11-20 09:31:34,191 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-11-20 09:31:34,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14028 conditions, 10985 events. 2191/10985 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 117689 event pairs, 1680 based on Foata normal form. 0/8735 useless extension candidates. Maximal degree in co-relation 13991. Up to 3025 conditions per place. [2022-11-20 09:31:34,296 INFO L137 encePairwiseOnDemand]: 352/358 looper letters, 51 selfloop transitions, 5 changer transitions 0/315 dead transitions. [2022-11-20 09:31:34,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 315 transitions, 751 flow [2022-11-20 09:31:34,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:31:34,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:31:34,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1791 transitions. [2022-11-20 09:31:34,302 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8337988826815642 [2022-11-20 09:31:34,302 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1791 transitions. [2022-11-20 09:31:34,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1791 transitions. [2022-11-20 09:31:34,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:34,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1791 transitions. [2022-11-20 09:31:34,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 298.5) internal successors, (1791), 6 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:34,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 358.0) internal successors, (2506), 7 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:34,316 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 358.0) internal successors, (2506), 7 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:34,317 INFO L175 Difference]: Start difference. First operand has 314 places, 316 transitions, 641 flow. Second operand 6 states and 1791 transitions. [2022-11-20 09:31:34,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 315 transitions, 751 flow [2022-11-20 09:31:34,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 315 transitions, 747 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:31:34,325 INFO L231 Difference]: Finished difference. Result has 316 places, 315 transitions, 645 flow [2022-11-20 09:31:34,325 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=635, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=645, PETRI_PLACES=316, PETRI_TRANSITIONS=315} [2022-11-20 09:31:34,329 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -11 predicate places. [2022-11-20 09:31:34,329 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 315 transitions, 645 flow [2022-11-20 09:31:34,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 290.8333333333333) internal successors, (1745), 6 states have internal predecessors, (1745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:34,331 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:34,331 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:34,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 09:31:34,332 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 09:31:34,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:34,333 INFO L85 PathProgramCache]: Analyzing trace with hash -58878757, now seen corresponding path program 1 times [2022-11-20 09:31:34,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:34,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132725438] [2022-11-20 09:31:34,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:34,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:34,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:34,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:34,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132725438] [2022-11-20 09:31:34,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132725438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:34,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:34,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:31:34,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547053279] [2022-11-20 09:31:34,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:34,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:31:34,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:34,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:31:34,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:31:34,426 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 358 [2022-11-20 09:31:34,428 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 315 transitions, 645 flow. Second operand has 3 states, 3 states have (on average 331.6666666666667) internal successors, (995), 3 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:34,428 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:34,428 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 358 [2022-11-20 09:31:34,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:34,616 INFO L130 PetriNetUnfolder]: 43/802 cut-off events. [2022-11-20 09:31:34,616 INFO L131 PetriNetUnfolder]: For 6/16 co-relation queries the response was YES. [2022-11-20 09:31:34,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 865 conditions, 802 events. 43/802 cut-off events. For 6/16 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4028 event pairs, 8 based on Foata normal form. 1/669 useless extension candidates. Maximal degree in co-relation 847. Up to 46 conditions per place. [2022-11-20 09:31:34,624 INFO L137 encePairwiseOnDemand]: 353/358 looper letters, 13 selfloop transitions, 2 changer transitions 0/315 dead transitions. [2022-11-20 09:31:34,624 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 315 transitions, 676 flow [2022-11-20 09:31:34,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:31:34,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:31:34,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1008 transitions. [2022-11-20 09:31:34,628 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9385474860335196 [2022-11-20 09:31:34,628 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1008 transitions. [2022-11-20 09:31:34,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1008 transitions. [2022-11-20 09:31:34,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:34,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1008 transitions. [2022-11-20 09:31:34,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.0) internal successors, (1008), 3 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:34,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:34,638 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:34,638 INFO L175 Difference]: Start difference. First operand has 316 places, 315 transitions, 645 flow. Second operand 3 states and 1008 transitions. [2022-11-20 09:31:34,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 315 transitions, 676 flow [2022-11-20 09:31:34,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 315 transitions, 666 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 09:31:34,648 INFO L231 Difference]: Finished difference. Result has 311 places, 314 transitions, 643 flow [2022-11-20 09:31:34,648 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=629, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=643, PETRI_PLACES=311, PETRI_TRANSITIONS=314} [2022-11-20 09:31:34,649 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -16 predicate places. [2022-11-20 09:31:34,650 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 314 transitions, 643 flow [2022-11-20 09:31:34,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 331.6666666666667) internal successors, (995), 3 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:34,651 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:34,651 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:34,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 09:31:34,652 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 09:31:34,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:34,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1709566809, now seen corresponding path program 1 times [2022-11-20 09:31:34,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:34,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922808492] [2022-11-20 09:31:34,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:34,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:34,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:34,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:34,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922808492] [2022-11-20 09:31:34,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922808492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:34,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:34,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:31:34,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833228302] [2022-11-20 09:31:34,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:34,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:31:34,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:34,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:31:34,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:31:34,721 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 358 [2022-11-20 09:31:34,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 314 transitions, 643 flow. Second operand has 3 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:34,724 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:34,724 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 358 [2022-11-20 09:31:34,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:34,860 INFO L130 PetriNetUnfolder]: 28/510 cut-off events. [2022-11-20 09:31:34,860 INFO L131 PetriNetUnfolder]: For 3/5 co-relation queries the response was YES. [2022-11-20 09:31:34,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 572 conditions, 510 events. 28/510 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1934 event pairs, 3 based on Foata normal form. 1/443 useless extension candidates. Maximal degree in co-relation 535. Up to 21 conditions per place. [2022-11-20 09:31:34,866 INFO L137 encePairwiseOnDemand]: 351/358 looper letters, 13 selfloop transitions, 3 changer transitions 0/311 dead transitions. [2022-11-20 09:31:34,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 311 transitions, 670 flow [2022-11-20 09:31:34,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:31:34,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:31:34,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1001 transitions. [2022-11-20 09:31:34,871 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9320297951582868 [2022-11-20 09:31:34,871 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1001 transitions. [2022-11-20 09:31:34,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1001 transitions. [2022-11-20 09:31:34,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:34,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1001 transitions. [2022-11-20 09:31:34,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 333.6666666666667) internal successors, (1001), 3 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:34,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:34,880 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:34,880 INFO L175 Difference]: Start difference. First operand has 311 places, 314 transitions, 643 flow. Second operand 3 states and 1001 transitions. [2022-11-20 09:31:34,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 311 transitions, 670 flow [2022-11-20 09:31:34,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 311 transitions, 670 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 09:31:34,890 INFO L231 Difference]: Finished difference. Result has 309 places, 310 transitions, 641 flow [2022-11-20 09:31:34,891 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=635, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=641, PETRI_PLACES=309, PETRI_TRANSITIONS=310} [2022-11-20 09:31:34,891 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -18 predicate places. [2022-11-20 09:31:34,892 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 310 transitions, 641 flow [2022-11-20 09:31:34,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:34,893 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:34,893 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:34,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 09:31:34,894 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 09:31:34,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:34,895 INFO L85 PathProgramCache]: Analyzing trace with hash 486235261, now seen corresponding path program 1 times [2022-11-20 09:31:34,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:34,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589473527] [2022-11-20 09:31:34,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:34,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:34,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:34,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:34,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589473527] [2022-11-20 09:31:34,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589473527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:34,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:34,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:31:34,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775869580] [2022-11-20 09:31:34,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:34,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:31:34,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:34,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:31:34,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:31:34,964 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 358 [2022-11-20 09:31:34,965 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 310 transitions, 641 flow. Second operand has 3 states, 3 states have (on average 304.3333333333333) internal successors, (913), 3 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:34,966 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:34,966 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 358 [2022-11-20 09:31:34,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:35,144 INFO L130 PetriNetUnfolder]: 49/593 cut-off events. [2022-11-20 09:31:35,145 INFO L131 PetriNetUnfolder]: For 30/34 co-relation queries the response was YES. [2022-11-20 09:31:35,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 730 conditions, 593 events. 49/593 cut-off events. For 30/34 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2764 event pairs, 9 based on Foata normal form. 2/533 useless extension candidates. Maximal degree in co-relation 692. Up to 75 conditions per place. [2022-11-20 09:31:35,150 INFO L137 encePairwiseOnDemand]: 341/358 looper letters, 25 selfloop transitions, 6 changer transitions 5/301 dead transitions. [2022-11-20 09:31:35,150 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 301 transitions, 690 flow [2022-11-20 09:31:35,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:31:35,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:31:35,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 952 transitions. [2022-11-20 09:31:35,154 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8864059590316573 [2022-11-20 09:31:35,155 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 952 transitions. [2022-11-20 09:31:35,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 952 transitions. [2022-11-20 09:31:35,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:35,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 952 transitions. [2022-11-20 09:31:35,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 317.3333333333333) internal successors, (952), 3 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:35,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:35,162 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:35,163 INFO L175 Difference]: Start difference. First operand has 309 places, 310 transitions, 641 flow. Second operand 3 states and 952 transitions. [2022-11-20 09:31:35,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 301 transitions, 690 flow [2022-11-20 09:31:35,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 301 transitions, 684 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:31:35,171 INFO L231 Difference]: Finished difference. Result has 299 places, 295 transitions, 616 flow [2022-11-20 09:31:35,172 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=616, PETRI_PLACES=299, PETRI_TRANSITIONS=295} [2022-11-20 09:31:35,173 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -28 predicate places. [2022-11-20 09:31:35,173 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 295 transitions, 616 flow [2022-11-20 09:31:35,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 304.3333333333333) internal successors, (913), 3 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:35,174 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:35,174 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:35,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 09:31:35,175 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 09:31:35,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:35,176 INFO L85 PathProgramCache]: Analyzing trace with hash -662277903, now seen corresponding path program 1 times [2022-11-20 09:31:35,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:35,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758324853] [2022-11-20 09:31:35,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:35,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:35,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:35,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:35,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758324853] [2022-11-20 09:31:35,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758324853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:35,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:35,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:31:35,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330873322] [2022-11-20 09:31:35,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:35,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:31:35,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:35,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:31:35,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:31:35,668 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 358 [2022-11-20 09:31:35,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 295 transitions, 616 flow. Second operand has 6 states, 6 states have (on average 295.8333333333333) internal successors, (1775), 6 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:35,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:35,671 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 358 [2022-11-20 09:31:35,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:37,482 INFO L130 PetriNetUnfolder]: 2122/8247 cut-off events. [2022-11-20 09:31:37,483 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-20 09:31:37,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11705 conditions, 8247 events. 2122/8247 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 78008 event pairs, 868 based on Foata normal form. 0/7209 useless extension candidates. Maximal degree in co-relation 11665. Up to 1126 conditions per place. [2022-11-20 09:31:37,543 INFO L137 encePairwiseOnDemand]: 353/358 looper letters, 139 selfloop transitions, 4 changer transitions 0/390 dead transitions. [2022-11-20 09:31:37,543 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 390 transitions, 1092 flow [2022-11-20 09:31:37,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:31:37,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:31:37,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1908 transitions. [2022-11-20 09:31:37,549 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.888268156424581 [2022-11-20 09:31:37,550 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1908 transitions. [2022-11-20 09:31:37,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1908 transitions. [2022-11-20 09:31:37,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:37,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1908 transitions. [2022-11-20 09:31:37,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 318.0) internal successors, (1908), 6 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:37,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 358.0) internal successors, (2506), 7 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:37,562 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 358.0) internal successors, (2506), 7 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:37,563 INFO L175 Difference]: Start difference. First operand has 299 places, 295 transitions, 616 flow. Second operand 6 states and 1908 transitions. [2022-11-20 09:31:37,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 390 transitions, 1092 flow [2022-11-20 09:31:37,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 390 transitions, 1080 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:31:37,580 INFO L231 Difference]: Finished difference. Result has 296 places, 294 transitions, 610 flow [2022-11-20 09:31:37,581 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=610, PETRI_PLACES=296, PETRI_TRANSITIONS=294} [2022-11-20 09:31:37,582 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -31 predicate places. [2022-11-20 09:31:37,583 INFO L495 AbstractCegarLoop]: Abstraction has has 296 places, 294 transitions, 610 flow [2022-11-20 09:31:37,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 295.8333333333333) internal successors, (1775), 6 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:37,584 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:37,584 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:37,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 09:31:37,585 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 09:31:37,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:37,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1054389337, now seen corresponding path program 1 times [2022-11-20 09:31:37,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:37,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120057971] [2022-11-20 09:31:37,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:37,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:37,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:37,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:37,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120057971] [2022-11-20 09:31:37,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120057971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:37,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:37,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:31:37,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899192411] [2022-11-20 09:31:37,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:37,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:31:37,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:37,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:31:37,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:31:37,665 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 358 [2022-11-20 09:31:37,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 294 transitions, 610 flow. Second operand has 3 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:37,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:37,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 358 [2022-11-20 09:31:37,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:37,861 INFO L130 PetriNetUnfolder]: 69/1045 cut-off events. [2022-11-20 09:31:37,861 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-20 09:31:37,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1151 conditions, 1045 events. 69/1045 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5565 event pairs, 7 based on Foata normal form. 0/935 useless extension candidates. Maximal degree in co-relation 1113. Up to 69 conditions per place. [2022-11-20 09:31:37,867 INFO L137 encePairwiseOnDemand]: 351/358 looper letters, 15 selfloop transitions, 3 changer transitions 0/295 dead transitions. [2022-11-20 09:31:37,867 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 295 transitions, 650 flow [2022-11-20 09:31:37,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:31:37,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:31:37,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1003 transitions. [2022-11-20 09:31:37,870 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9338919925512105 [2022-11-20 09:31:37,871 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1003 transitions. [2022-11-20 09:31:37,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1003 transitions. [2022-11-20 09:31:37,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:37,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1003 transitions. [2022-11-20 09:31:37,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 334.3333333333333) internal successors, (1003), 3 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:37,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:37,894 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:37,895 INFO L175 Difference]: Start difference. First operand has 296 places, 294 transitions, 610 flow. Second operand 3 states and 1003 transitions. [2022-11-20 09:31:37,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 295 transitions, 650 flow [2022-11-20 09:31:37,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 295 transitions, 643 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 09:31:37,901 INFO L231 Difference]: Finished difference. Result has 291 places, 293 transitions, 616 flow [2022-11-20 09:31:37,902 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=616, PETRI_PLACES=291, PETRI_TRANSITIONS=293} [2022-11-20 09:31:37,903 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -36 predicate places. [2022-11-20 09:31:37,903 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 293 transitions, 616 flow [2022-11-20 09:31:37,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:37,904 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:37,904 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:37,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 09:31:37,905 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 09:31:37,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:37,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1001733453, now seen corresponding path program 1 times [2022-11-20 09:31:37,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:37,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645876628] [2022-11-20 09:31:37,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:37,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:38,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:38,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:38,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645876628] [2022-11-20 09:31:38,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645876628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:38,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:38,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:31:38,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124008482] [2022-11-20 09:31:38,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:38,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:31:38,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:38,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:31:38,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:31:38,061 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 358 [2022-11-20 09:31:38,062 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 293 transitions, 616 flow. Second operand has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:38,063 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:38,063 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 358 [2022-11-20 09:31:38,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:38,396 INFO L130 PetriNetUnfolder]: 95/1638 cut-off events. [2022-11-20 09:31:38,396 INFO L131 PetriNetUnfolder]: For 2/4 co-relation queries the response was YES. [2022-11-20 09:31:38,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1847 conditions, 1638 events. 95/1638 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 10618 event pairs, 13 based on Foata normal form. 1/1472 useless extension candidates. Maximal degree in co-relation 1808. Up to 58 conditions per place. [2022-11-20 09:31:38,411 INFO L137 encePairwiseOnDemand]: 352/358 looper letters, 29 selfloop transitions, 6 changer transitions 0/310 dead transitions. [2022-11-20 09:31:38,411 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 310 transitions, 724 flow [2022-11-20 09:31:38,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:31:38,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 09:31:38,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1666 transitions. [2022-11-20 09:31:38,416 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9307262569832402 [2022-11-20 09:31:38,416 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1666 transitions. [2022-11-20 09:31:38,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1666 transitions. [2022-11-20 09:31:38,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:38,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1666 transitions. [2022-11-20 09:31:38,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 333.2) internal successors, (1666), 5 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:38,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 358.0) internal successors, (2148), 6 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:38,427 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 358.0) internal successors, (2148), 6 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:38,427 INFO L175 Difference]: Start difference. First operand has 291 places, 293 transitions, 616 flow. Second operand 5 states and 1666 transitions. [2022-11-20 09:31:38,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 310 transitions, 724 flow [2022-11-20 09:31:38,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 310 transitions, 724 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 09:31:38,435 INFO L231 Difference]: Finished difference. Result has 298 places, 297 transitions, 654 flow [2022-11-20 09:31:38,436 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=654, PETRI_PLACES=298, PETRI_TRANSITIONS=297} [2022-11-20 09:31:38,436 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -29 predicate places. [2022-11-20 09:31:38,437 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 297 transitions, 654 flow [2022-11-20 09:31:38,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:38,438 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:38,438 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:38,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 09:31:38,438 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 09:31:38,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:38,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1891638933, now seen corresponding path program 1 times [2022-11-20 09:31:38,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:38,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621254121] [2022-11-20 09:31:38,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:38,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:38,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:38,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:38,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621254121] [2022-11-20 09:31:38,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621254121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:38,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:38,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:31:38,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662816168] [2022-11-20 09:31:38,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:38,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:31:38,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:38,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:31:38,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:31:38,974 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 358 [2022-11-20 09:31:38,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 297 transitions, 654 flow. Second operand has 6 states, 6 states have (on average 296.8333333333333) internal successors, (1781), 6 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:38,977 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:38,977 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 358 [2022-11-20 09:31:38,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:42,362 INFO L130 PetriNetUnfolder]: 3863/17251 cut-off events. [2022-11-20 09:31:42,362 INFO L131 PetriNetUnfolder]: For 89/89 co-relation queries the response was YES. [2022-11-20 09:31:42,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23628 conditions, 17251 events. 3863/17251 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 185611 event pairs, 2979 based on Foata normal form. 0/15280 useless extension candidates. Maximal degree in co-relation 23583. Up to 5014 conditions per place. [2022-11-20 09:31:42,491 INFO L137 encePairwiseOnDemand]: 353/358 looper letters, 114 selfloop transitions, 4 changer transitions 0/368 dead transitions. [2022-11-20 09:31:42,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 368 transitions, 1032 flow [2022-11-20 09:31:42,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:31:42,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:31:42,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1883 transitions. [2022-11-20 09:31:42,497 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8766294227188082 [2022-11-20 09:31:42,497 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1883 transitions. [2022-11-20 09:31:42,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1883 transitions. [2022-11-20 09:31:42,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:42,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1883 transitions. [2022-11-20 09:31:42,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 313.8333333333333) internal successors, (1883), 6 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:42,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 358.0) internal successors, (2506), 7 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:42,509 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 358.0) internal successors, (2506), 7 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:42,510 INFO L175 Difference]: Start difference. First operand has 298 places, 297 transitions, 654 flow. Second operand 6 states and 1883 transitions. [2022-11-20 09:31:42,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 368 transitions, 1032 flow [2022-11-20 09:31:42,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 368 transitions, 1032 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 09:31:42,519 INFO L231 Difference]: Finished difference. Result has 302 places, 296 transitions, 660 flow [2022-11-20 09:31:42,519 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=660, PETRI_PLACES=302, PETRI_TRANSITIONS=296} [2022-11-20 09:31:42,520 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -25 predicate places. [2022-11-20 09:31:42,520 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 296 transitions, 660 flow [2022-11-20 09:31:42,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 296.8333333333333) internal successors, (1781), 6 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:42,521 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:42,522 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:42,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 09:31:42,522 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 09:31:42,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:42,523 INFO L85 PathProgramCache]: Analyzing trace with hash -920539149, now seen corresponding path program 1 times [2022-11-20 09:31:42,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:42,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445377841] [2022-11-20 09:31:42,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:42,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:43,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:43,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:43,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445377841] [2022-11-20 09:31:43,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445377841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:43,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:43,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:31:43,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360393718] [2022-11-20 09:31:43,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:43,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:31:43,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:43,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:31:43,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:31:43,231 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 358 [2022-11-20 09:31:43,233 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 296 transitions, 660 flow. Second operand has 6 states, 6 states have (on average 291.0) internal successors, (1746), 6 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:43,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:43,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 358 [2022-11-20 09:31:43,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:46,501 INFO L130 PetriNetUnfolder]: 5479/18022 cut-off events. [2022-11-20 09:31:46,501 INFO L131 PetriNetUnfolder]: For 1663/1663 co-relation queries the response was YES. [2022-11-20 09:31:46,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28697 conditions, 18022 events. 5479/18022 cut-off events. For 1663/1663 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 183038 event pairs, 2195 based on Foata normal form. 0/16311 useless extension candidates. Maximal degree in co-relation 28651. Up to 4200 conditions per place. [2022-11-20 09:31:46,630 INFO L137 encePairwiseOnDemand]: 352/358 looper letters, 156 selfloop transitions, 6 changer transitions 0/403 dead transitions. [2022-11-20 09:31:46,631 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 403 transitions, 1206 flow [2022-11-20 09:31:46,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:31:46,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:31:46,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1894 transitions. [2022-11-20 09:31:46,637 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8817504655493482 [2022-11-20 09:31:46,638 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1894 transitions. [2022-11-20 09:31:46,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1894 transitions. [2022-11-20 09:31:46,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:46,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1894 transitions. [2022-11-20 09:31:46,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 315.6666666666667) internal successors, (1894), 6 states have internal predecessors, (1894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:46,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 358.0) internal successors, (2506), 7 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:46,652 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 358.0) internal successors, (2506), 7 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:46,652 INFO L175 Difference]: Start difference. First operand has 302 places, 296 transitions, 660 flow. Second operand 6 states and 1894 transitions. [2022-11-20 09:31:46,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 403 transitions, 1206 flow [2022-11-20 09:31:46,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 403 transitions, 1199 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 09:31:46,666 INFO L231 Difference]: Finished difference. Result has 302 places, 295 transitions, 663 flow [2022-11-20 09:31:46,667 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=651, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=663, PETRI_PLACES=302, PETRI_TRANSITIONS=295} [2022-11-20 09:31:46,667 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -25 predicate places. [2022-11-20 09:31:46,668 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 295 transitions, 663 flow [2022-11-20 09:31:46,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 291.0) internal successors, (1746), 6 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:46,669 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:46,669 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:46,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 09:31:46,669 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 09:31:46,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:46,670 INFO L85 PathProgramCache]: Analyzing trace with hash -71714620, now seen corresponding path program 1 times [2022-11-20 09:31:46,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:46,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305843708] [2022-11-20 09:31:46,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:46,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:46,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:46,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:46,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305843708] [2022-11-20 09:31:46,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305843708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:46,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:46,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:31:46,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358239488] [2022-11-20 09:31:46,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:46,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:31:46,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:46,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:31:46,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:31:46,811 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 358 [2022-11-20 09:31:46,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 295 transitions, 663 flow. Second operand has 4 states, 4 states have (on average 309.25) internal successors, (1237), 4 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:46,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:46,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 358 [2022-11-20 09:31:46,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:47,433 INFO L130 PetriNetUnfolder]: 163/1539 cut-off events. [2022-11-20 09:31:47,433 INFO L131 PetriNetUnfolder]: For 116/118 co-relation queries the response was YES. [2022-11-20 09:31:47,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2120 conditions, 1539 events. 163/1539 cut-off events. For 116/118 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 9808 event pairs, 42 based on Foata normal form. 1/1411 useless extension candidates. Maximal degree in co-relation 2075. Up to 271 conditions per place. [2022-11-20 09:31:47,443 INFO L137 encePairwiseOnDemand]: 351/358 looper letters, 57 selfloop transitions, 7 changer transitions 0/321 dead transitions. [2022-11-20 09:31:47,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 321 transitions, 846 flow [2022-11-20 09:31:47,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:31:47,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 09:31:47,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1595 transitions. [2022-11-20 09:31:47,447 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8910614525139665 [2022-11-20 09:31:47,448 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1595 transitions. [2022-11-20 09:31:47,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1595 transitions. [2022-11-20 09:31:47,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:47,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1595 transitions. [2022-11-20 09:31:47,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 319.0) internal successors, (1595), 5 states have internal predecessors, (1595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:47,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 358.0) internal successors, (2148), 6 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:47,457 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 358.0) internal successors, (2148), 6 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:47,457 INFO L175 Difference]: Start difference. First operand has 302 places, 295 transitions, 663 flow. Second operand 5 states and 1595 transitions. [2022-11-20 09:31:47,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 321 transitions, 846 flow [2022-11-20 09:31:47,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 321 transitions, 834 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 09:31:47,465 INFO L231 Difference]: Finished difference. Result has 304 places, 300 transitions, 697 flow [2022-11-20 09:31:47,465 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=651, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=697, PETRI_PLACES=304, PETRI_TRANSITIONS=300} [2022-11-20 09:31:47,466 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -23 predicate places. [2022-11-20 09:31:47,466 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 300 transitions, 697 flow [2022-11-20 09:31:47,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 309.25) internal successors, (1237), 4 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:47,467 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:47,467 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:47,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 09:31:47,467 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 09:31:47,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:47,468 INFO L85 PathProgramCache]: Analyzing trace with hash 443979746, now seen corresponding path program 1 times [2022-11-20 09:31:47,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:47,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223995146] [2022-11-20 09:31:47,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:47,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:47,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:47,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:47,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223995146] [2022-11-20 09:31:47,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223995146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:47,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:47,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:31:47,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745717947] [2022-11-20 09:31:47,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:47,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:31:47,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:47,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:31:47,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:31:47,582 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 358 [2022-11-20 09:31:47,584 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 300 transitions, 697 flow. Second operand has 4 states, 4 states have (on average 309.25) internal successors, (1237), 4 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:47,584 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:47,584 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 358 [2022-11-20 09:31:47,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:47,950 INFO L130 PetriNetUnfolder]: 160/1540 cut-off events. [2022-11-20 09:31:47,950 INFO L131 PetriNetUnfolder]: For 180/182 co-relation queries the response was YES. [2022-11-20 09:31:47,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2185 conditions, 1540 events. 160/1540 cut-off events. For 180/182 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 9870 event pairs, 44 based on Foata normal form. 0/1422 useless extension candidates. Maximal degree in co-relation 2136. Up to 271 conditions per place. [2022-11-20 09:31:47,963 INFO L137 encePairwiseOnDemand]: 351/358 looper letters, 57 selfloop transitions, 7 changer transitions 0/322 dead transitions. [2022-11-20 09:31:47,964 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 322 transitions, 872 flow [2022-11-20 09:31:47,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:31:47,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 09:31:47,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1595 transitions. [2022-11-20 09:31:47,968 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8910614525139665 [2022-11-20 09:31:47,968 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1595 transitions. [2022-11-20 09:31:47,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1595 transitions. [2022-11-20 09:31:47,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:47,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1595 transitions. [2022-11-20 09:31:47,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 319.0) internal successors, (1595), 5 states have internal predecessors, (1595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:47,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 358.0) internal successors, (2148), 6 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:47,978 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 358.0) internal successors, (2148), 6 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:47,978 INFO L175 Difference]: Start difference. First operand has 304 places, 300 transitions, 697 flow. Second operand 5 states and 1595 transitions. [2022-11-20 09:31:47,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 322 transitions, 872 flow [2022-11-20 09:31:47,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 322 transitions, 872 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 09:31:47,986 INFO L231 Difference]: Finished difference. Result has 311 places, 303 transitions, 735 flow [2022-11-20 09:31:47,987 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=697, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=735, PETRI_PLACES=311, PETRI_TRANSITIONS=303} [2022-11-20 09:31:47,987 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -16 predicate places. [2022-11-20 09:31:47,987 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 303 transitions, 735 flow [2022-11-20 09:31:47,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 309.25) internal successors, (1237), 4 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:47,988 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:47,988 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:47,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 09:31:47,989 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 09:31:47,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:47,989 INFO L85 PathProgramCache]: Analyzing trace with hash 27933558, now seen corresponding path program 1 times [2022-11-20 09:31:47,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:47,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950007961] [2022-11-20 09:31:47,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:47,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:48,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:48,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:48,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950007961] [2022-11-20 09:31:48,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950007961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:48,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:48,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:31:48,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832098203] [2022-11-20 09:31:48,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:48,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:31:48,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:48,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:31:48,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:31:48,041 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 358 [2022-11-20 09:31:48,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 303 transitions, 735 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:48,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:48,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 358 [2022-11-20 09:31:48,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:48,257 INFO L130 PetriNetUnfolder]: 62/1116 cut-off events. [2022-11-20 09:31:48,257 INFO L131 PetriNetUnfolder]: For 85/87 co-relation queries the response was YES. [2022-11-20 09:31:48,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1432 conditions, 1116 events. 62/1116 cut-off events. For 85/87 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 5194 event pairs, 20 based on Foata normal form. 0/1035 useless extension candidates. Maximal degree in co-relation 1379. Up to 63 conditions per place. [2022-11-20 09:31:48,267 INFO L137 encePairwiseOnDemand]: 355/358 looper letters, 12 selfloop transitions, 2 changer transitions 0/303 dead transitions. [2022-11-20 09:31:48,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 303 transitions, 764 flow [2022-11-20 09:31:48,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:31:48,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:31:48,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 990 transitions. [2022-11-20 09:31:48,270 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9217877094972067 [2022-11-20 09:31:48,271 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 990 transitions. [2022-11-20 09:31:48,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 990 transitions. [2022-11-20 09:31:48,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:48,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 990 transitions. [2022-11-20 09:31:48,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 330.0) internal successors, (990), 3 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:48,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:48,277 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:48,278 INFO L175 Difference]: Start difference. First operand has 311 places, 303 transitions, 735 flow. Second operand 3 states and 990 transitions. [2022-11-20 09:31:48,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 303 transitions, 764 flow [2022-11-20 09:31:48,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 303 transitions, 764 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 09:31:48,286 INFO L231 Difference]: Finished difference. Result has 312 places, 302 transitions, 737 flow [2022-11-20 09:31:48,287 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=737, PETRI_PLACES=312, PETRI_TRANSITIONS=302} [2022-11-20 09:31:48,287 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -15 predicate places. [2022-11-20 09:31:48,289 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 302 transitions, 737 flow [2022-11-20 09:31:48,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:48,290 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:48,291 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:48,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 09:31:48,291 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 09:31:48,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:48,292 INFO L85 PathProgramCache]: Analyzing trace with hash -942194191, now seen corresponding path program 1 times [2022-11-20 09:31:48,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:48,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485763273] [2022-11-20 09:31:48,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:48,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:48,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:48,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:48,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485763273] [2022-11-20 09:31:48,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485763273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:48,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:48,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:31:48,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034097067] [2022-11-20 09:31:48,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:48,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:31:48,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:48,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:31:48,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:31:48,872 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 358 [2022-11-20 09:31:48,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 302 transitions, 737 flow. Second operand has 6 states, 6 states have (on average 285.1666666666667) internal successors, (1711), 6 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:48,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:48,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 358 [2022-11-20 09:31:48,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:53,410 INFO L130 PetriNetUnfolder]: 7584/24348 cut-off events. [2022-11-20 09:31:53,410 INFO L131 PetriNetUnfolder]: For 3543/3543 co-relation queries the response was YES. [2022-11-20 09:31:53,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40765 conditions, 24348 events. 7584/24348 cut-off events. For 3543/3543 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 244949 event pairs, 2647 based on Foata normal form. 0/22848 useless extension candidates. Maximal degree in co-relation 40709. Up to 4874 conditions per place. [2022-11-20 09:31:53,562 INFO L137 encePairwiseOnDemand]: 340/358 looper letters, 111 selfloop transitions, 17 changer transitions 0/367 dead transitions. [2022-11-20 09:31:53,562 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 367 transitions, 1135 flow [2022-11-20 09:31:53,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:31:53,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:31:53,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1823 transitions. [2022-11-20 09:31:53,576 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8486964618249534 [2022-11-20 09:31:53,576 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1823 transitions. [2022-11-20 09:31:53,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1823 transitions. [2022-11-20 09:31:53,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:53,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1823 transitions. [2022-11-20 09:31:53,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 303.8333333333333) internal successors, (1823), 6 states have internal predecessors, (1823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:53,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 358.0) internal successors, (2506), 7 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:53,604 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 358.0) internal successors, (2506), 7 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:53,605 INFO L175 Difference]: Start difference. First operand has 312 places, 302 transitions, 737 flow. Second operand 6 states and 1823 transitions. [2022-11-20 09:31:53,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 367 transitions, 1135 flow [2022-11-20 09:31:53,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 367 transitions, 1131 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:31:53,619 INFO L231 Difference]: Finished difference. Result has 312 places, 299 transitions, 761 flow [2022-11-20 09:31:53,620 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=761, PETRI_PLACES=312, PETRI_TRANSITIONS=299} [2022-11-20 09:31:53,620 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -15 predicate places. [2022-11-20 09:31:53,620 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 299 transitions, 761 flow [2022-11-20 09:31:53,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 285.1666666666667) internal successors, (1711), 6 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:53,622 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:53,622 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:53,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 09:31:53,623 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 09:31:53,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:53,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1487484426, now seen corresponding path program 1 times [2022-11-20 09:31:53,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:53,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913736609] [2022-11-20 09:31:53,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:53,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:53,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:53,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:53,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913736609] [2022-11-20 09:31:53,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913736609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:53,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:53,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:31:53,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90261644] [2022-11-20 09:31:53,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:53,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:31:53,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:53,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:31:53,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:31:53,868 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 358 [2022-11-20 09:31:53,869 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 299 transitions, 761 flow. Second operand has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:53,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:53,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 358 [2022-11-20 09:31:53,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:54,228 INFO L130 PetriNetUnfolder]: 136/1450 cut-off events. [2022-11-20 09:31:54,229 INFO L131 PetriNetUnfolder]: For 257/260 co-relation queries the response was YES. [2022-11-20 09:31:54,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2197 conditions, 1450 events. 136/1450 cut-off events. For 257/260 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 8975 event pairs, 82 based on Foata normal form. 0/1374 useless extension candidates. Maximal degree in co-relation 2143. Up to 301 conditions per place. [2022-11-20 09:31:54,242 INFO L137 encePairwiseOnDemand]: 355/358 looper letters, 30 selfloop transitions, 2 changer transitions 0/299 dead transitions. [2022-11-20 09:31:54,242 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 299 transitions, 826 flow [2022-11-20 09:31:54,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:31:54,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:31:54,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 936 transitions. [2022-11-20 09:31:54,246 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8715083798882681 [2022-11-20 09:31:54,246 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 936 transitions. [2022-11-20 09:31:54,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 936 transitions. [2022-11-20 09:31:54,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:54,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 936 transitions. [2022-11-20 09:31:54,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:54,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:54,253 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:54,253 INFO L175 Difference]: Start difference. First operand has 312 places, 299 transitions, 761 flow. Second operand 3 states and 936 transitions. [2022-11-20 09:31:54,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 299 transitions, 826 flow [2022-11-20 09:31:54,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 299 transitions, 792 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 09:31:54,261 INFO L231 Difference]: Finished difference. Result has 308 places, 298 transitions, 729 flow [2022-11-20 09:31:54,261 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=725, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=729, PETRI_PLACES=308, PETRI_TRANSITIONS=298} [2022-11-20 09:31:54,262 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -19 predicate places. [2022-11-20 09:31:54,262 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 298 transitions, 729 flow [2022-11-20 09:31:54,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:54,263 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:54,263 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:54,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 09:31:54,263 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 09:31:54,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:54,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1156622242, now seen corresponding path program 1 times [2022-11-20 09:31:54,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:54,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327856404] [2022-11-20 09:31:54,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:54,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:54,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:54,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:54,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327856404] [2022-11-20 09:31:54,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327856404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:54,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:54,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:31:54,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997080149] [2022-11-20 09:31:54,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:54,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:31:54,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:54,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:31:54,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:31:54,314 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 358 [2022-11-20 09:31:54,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 298 transitions, 729 flow. Second operand has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:54,316 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:54,316 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 358 [2022-11-20 09:31:54,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:54,647 INFO L130 PetriNetUnfolder]: 134/1442 cut-off events. [2022-11-20 09:31:54,648 INFO L131 PetriNetUnfolder]: For 201/204 co-relation queries the response was YES. [2022-11-20 09:31:54,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2043 conditions, 1442 events. 134/1442 cut-off events. For 201/204 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8851 event pairs, 80 based on Foata normal form. 0/1372 useless extension candidates. Maximal degree in co-relation 1989. Up to 293 conditions per place. [2022-11-20 09:31:54,660 INFO L137 encePairwiseOnDemand]: 355/358 looper letters, 28 selfloop transitions, 2 changer transitions 1/298 dead transitions. [2022-11-20 09:31:54,660 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 298 transitions, 792 flow [2022-11-20 09:31:54,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:31:54,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:31:54,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 935 transitions. [2022-11-20 09:31:54,664 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8705772811918063 [2022-11-20 09:31:54,664 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 935 transitions. [2022-11-20 09:31:54,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 935 transitions. [2022-11-20 09:31:54,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:54,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 935 transitions. [2022-11-20 09:31:54,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2022-11-20 09:31:54,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:54,671 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:54,672 INFO L175 Difference]: Start difference. First operand has 308 places, 298 transitions, 729 flow. Second operand 3 states and 935 transitions. [2022-11-20 09:31:54,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 298 transitions, 792 flow [2022-11-20 09:31:54,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 298 transitions, 788 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:31:54,679 INFO L231 Difference]: Finished difference. Result has 307 places, 297 transitions, 727 flow [2022-11-20 09:31:54,680 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=723, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=727, PETRI_PLACES=307, PETRI_TRANSITIONS=297} [2022-11-20 09:31:54,680 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -20 predicate places. [2022-11-20 09:31:54,680 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 297 transitions, 727 flow [2022-11-20 09:31:54,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:54,681 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:54,681 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:54,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 09:31:54,682 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 09:31:54,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:54,682 INFO L85 PathProgramCache]: Analyzing trace with hash 699115312, now seen corresponding path program 1 times [2022-11-20 09:31:54,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:54,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826973590] [2022-11-20 09:31:54,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:54,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:54,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:54,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:54,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826973590] [2022-11-20 09:31:54,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826973590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:54,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:54,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:31:54,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550506106] [2022-11-20 09:31:54,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:54,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:31:54,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:54,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:31:54,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:31:54,752 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 358 [2022-11-20 09:31:54,754 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 297 transitions, 727 flow. Second operand has 3 states, 3 states have (on average 306.6666666666667) internal successors, (920), 3 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:54,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:54,754 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 358 [2022-11-20 09:31:54,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:55,275 INFO L130 PetriNetUnfolder]: 132/1434 cut-off events. [2022-11-20 09:31:55,275 INFO L131 PetriNetUnfolder]: For 199/202 co-relation queries the response was YES. [2022-11-20 09:31:55,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2027 conditions, 1434 events. 132/1434 cut-off events. For 199/202 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 8773 event pairs, 78 based on Foata normal form. 0/1370 useless extension candidates. Maximal degree in co-relation 1973. Up to 285 conditions per place. [2022-11-20 09:31:55,285 INFO L137 encePairwiseOnDemand]: 355/358 looper letters, 0 selfloop transitions, 0 changer transitions 297/297 dead transitions. [2022-11-20 09:31:55,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 297 transitions, 788 flow [2022-11-20 09:31:55,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:31:55,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:31:55,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 934 transitions. [2022-11-20 09:31:55,289 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8696461824953445 [2022-11-20 09:31:55,290 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 934 transitions. [2022-11-20 09:31:55,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 934 transitions. [2022-11-20 09:31:55,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:55,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 934 transitions. [2022-11-20 09:31:55,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:55,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:55,298 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 358.0) internal successors, (1432), 4 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:55,299 INFO L175 Difference]: Start difference. First operand has 307 places, 297 transitions, 727 flow. Second operand 3 states and 934 transitions. [2022-11-20 09:31:55,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 297 transitions, 788 flow [2022-11-20 09:31:55,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 297 transitions, 784 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:31:55,306 INFO L231 Difference]: Finished difference. Result has 306 places, 0 transitions, 0 flow [2022-11-20 09:31:55,307 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=721, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=306, PETRI_TRANSITIONS=0} [2022-11-20 09:31:55,307 INFO L288 CegarLoopForPetriNet]: 327 programPoint places, -21 predicate places. [2022-11-20 09:31:55,307 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 0 transitions, 0 flow [2022-11-20 09:31:55,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 306.6666666666667) internal successors, (920), 3 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:55,312 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (73 of 74 remaining) [2022-11-20 09:31:55,313 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (72 of 74 remaining) [2022-11-20 09:31:55,313 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (71 of 74 remaining) [2022-11-20 09:31:55,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (70 of 74 remaining) [2022-11-20 09:31:55,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (69 of 74 remaining) [2022-11-20 09:31:55,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (68 of 74 remaining) [2022-11-20 09:31:55,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (67 of 74 remaining) [2022-11-20 09:31:55,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (66 of 74 remaining) [2022-11-20 09:31:55,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (65 of 74 remaining) [2022-11-20 09:31:55,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (64 of 74 remaining) [2022-11-20 09:31:55,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (63 of 74 remaining) [2022-11-20 09:31:55,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (62 of 74 remaining) [2022-11-20 09:31:55,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (61 of 74 remaining) [2022-11-20 09:31:55,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (60 of 74 remaining) [2022-11-20 09:31:55,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (59 of 74 remaining) [2022-11-20 09:31:55,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (58 of 74 remaining) [2022-11-20 09:31:55,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (57 of 74 remaining) [2022-11-20 09:31:55,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (56 of 74 remaining) [2022-11-20 09:31:55,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (55 of 74 remaining) [2022-11-20 09:31:55,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (54 of 74 remaining) [2022-11-20 09:31:55,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (53 of 74 remaining) [2022-11-20 09:31:55,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (52 of 74 remaining) [2022-11-20 09:31:55,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (51 of 74 remaining) [2022-11-20 09:31:55,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (50 of 74 remaining) [2022-11-20 09:31:55,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (49 of 74 remaining) [2022-11-20 09:31:55,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (48 of 74 remaining) [2022-11-20 09:31:55,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (47 of 74 remaining) [2022-11-20 09:31:55,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (46 of 74 remaining) [2022-11-20 09:31:55,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (45 of 74 remaining) [2022-11-20 09:31:55,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (44 of 74 remaining) [2022-11-20 09:31:55,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (43 of 74 remaining) [2022-11-20 09:31:55,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (42 of 74 remaining) [2022-11-20 09:31:55,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (41 of 74 remaining) [2022-11-20 09:31:55,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (40 of 74 remaining) [2022-11-20 09:31:55,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (39 of 74 remaining) [2022-11-20 09:31:55,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 74 remaining) [2022-11-20 09:31:55,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (37 of 74 remaining) [2022-11-20 09:31:55,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (36 of 74 remaining) [2022-11-20 09:31:55,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (35 of 74 remaining) [2022-11-20 09:31:55,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 74 remaining) [2022-11-20 09:31:55,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 74 remaining) [2022-11-20 09:31:55,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 74 remaining) [2022-11-20 09:31:55,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 74 remaining) [2022-11-20 09:31:55,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (30 of 74 remaining) [2022-11-20 09:31:55,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (29 of 74 remaining) [2022-11-20 09:31:55,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (28 of 74 remaining) [2022-11-20 09:31:55,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (27 of 74 remaining) [2022-11-20 09:31:55,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (26 of 74 remaining) [2022-11-20 09:31:55,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (25 of 74 remaining) [2022-11-20 09:31:55,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (24 of 74 remaining) [2022-11-20 09:31:55,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (23 of 74 remaining) [2022-11-20 09:31:55,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (22 of 74 remaining) [2022-11-20 09:31:55,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (21 of 74 remaining) [2022-11-20 09:31:55,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (20 of 74 remaining) [2022-11-20 09:31:55,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (19 of 74 remaining) [2022-11-20 09:31:55,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (18 of 74 remaining) [2022-11-20 09:31:55,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (17 of 74 remaining) [2022-11-20 09:31:55,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (16 of 74 remaining) [2022-11-20 09:31:55,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (15 of 74 remaining) [2022-11-20 09:31:55,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (14 of 74 remaining) [2022-11-20 09:31:55,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (13 of 74 remaining) [2022-11-20 09:31:55,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (12 of 74 remaining) [2022-11-20 09:31:55,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (11 of 74 remaining) [2022-11-20 09:31:55,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (10 of 74 remaining) [2022-11-20 09:31:55,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (9 of 74 remaining) [2022-11-20 09:31:55,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (8 of 74 remaining) [2022-11-20 09:31:55,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (7 of 74 remaining) [2022-11-20 09:31:55,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (6 of 74 remaining) [2022-11-20 09:31:55,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (5 of 74 remaining) [2022-11-20 09:31:55,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (4 of 74 remaining) [2022-11-20 09:31:55,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (3 of 74 remaining) [2022-11-20 09:31:55,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (2 of 74 remaining) [2022-11-20 09:31:55,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (1 of 74 remaining) [2022-11-20 09:31:55,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (0 of 74 remaining) [2022-11-20 09:31:55,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 09:31:55,334 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:55,342 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 09:31:55,343 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 09:31:55,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:31:55 BasicIcfg [2022-11-20 09:31:55,349 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 09:31:55,351 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:31:55,351 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:31:55,351 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:31:55,352 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:31:27" (3/4) ... [2022-11-20 09:31:55,355 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 09:31:55,363 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-20 09:31:55,363 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-20 09:31:55,372 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-20 09:31:55,372 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 09:31:55,373 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 09:31:55,373 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 09:31:55,441 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d440e2-79d0-4245-9439-0e273d6a8369/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 09:31:55,441 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:31:55,442 INFO L158 Benchmark]: Toolchain (without parser) took 29503.31ms. Allocated memory was 134.2MB in the beginning and 7.8GB in the end (delta: 7.7GB). Free memory was 69.0MB in the beginning and 7.1GB in the end (delta: -7.0GB). Peak memory consumption was 666.3MB. Max. memory is 16.1GB. [2022-11-20 09:31:55,442 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 134.2MB. Free memory is still 109.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:31:55,443 INFO L158 Benchmark]: CACSL2BoogieTranslator took 414.57ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 68.9MB in the beginning and 151.5MB in the end (delta: -82.7MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2022-11-20 09:31:55,444 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.77ms. Allocated memory is still 184.5MB. Free memory was 151.5MB in the beginning and 148.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:31:55,444 INFO L158 Benchmark]: Boogie Preprocessor took 93.76ms. Allocated memory is still 184.5MB. Free memory was 148.6MB in the beginning and 146.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:31:55,445 INFO L158 Benchmark]: RCFGBuilder took 1094.40ms. Allocated memory is still 184.5MB. Free memory was 146.5MB in the beginning and 139.0MB in the end (delta: 7.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 09:31:55,445 INFO L158 Benchmark]: TraceAbstraction took 27729.34ms. Allocated memory was 184.5MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 139.0MB in the beginning and 7.1GB in the end (delta: -6.9GB). Peak memory consumption was 919.7MB. Max. memory is 16.1GB. [2022-11-20 09:31:55,446 INFO L158 Benchmark]: Witness Printer took 90.55ms. Allocated memory is still 7.8GB. Free memory was 7.1GB in the beginning and 7.1GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 09:31:55,449 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 134.2MB. Free memory is still 109.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 414.57ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 68.9MB in the beginning and 151.5MB in the end (delta: -82.7MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.77ms. Allocated memory is still 184.5MB. Free memory was 151.5MB in the beginning and 148.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 93.76ms. Allocated memory is still 184.5MB. Free memory was 148.6MB in the beginning and 146.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1094.40ms. Allocated memory is still 184.5MB. Free memory was 146.5MB in the beginning and 139.0MB in the end (delta: 7.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 27729.34ms. Allocated memory was 184.5MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 139.0MB in the beginning and 7.1GB in the end (delta: -6.9GB). Peak memory consumption was 919.7MB. Max. memory is 16.1GB. * Witness Printer took 90.55ms. Allocated memory is still 7.8GB. Free memory was 7.1GB in the beginning and 7.1GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 534 locations, 74 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 27.4s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 249 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 249 mSDsluCounter, 466 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 309 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1815 IncrementalHoareTripleChecker+Invalid, 2124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 309 mSolverCounterUnsat, 426 mSDtfsCounter, 1815 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=761occurred in iteration=17, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1808 NumberOfCodeBlocks, 1808 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1788 ConstructedInterpolants, 0 QuantifiedInterpolants, 2789 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 41 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 09:31:55,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d440e2-79d0-4245-9439-0e273d6a8369/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE