./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-word-trans.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_7c80e5bc-0c3c-4e03-8433-11239c042443/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c80e5bc-0c3c-4e03-8433-11239c042443/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_7c80e5bc-0c3c-4e03-8433-11239c042443/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c80e5bc-0c3c-4e03-8433-11239c042443/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c80e5bc-0c3c-4e03-8433-11239c042443/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_7c80e5bc-0c3c-4e03-8433-11239c042443/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 73462fb8dbdc39f07edabdd79150cbad579fbba379eb033cd2e89802bbb8b9a6 --- 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 12:42:10,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:42:10,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:42:10,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:42:10,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:42:10,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:42:10,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:42:10,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:42:10,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:42:10,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:42:10,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:42:10,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:42:10,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:42:10,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:42:10,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:42:10,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:42:10,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:42:10,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:42:10,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:42:10,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:42:10,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:42:10,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:42:10,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:42:10,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:42:10,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:42:10,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:42:10,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:42:10,851 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:42:10,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:42:10,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:42:10,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:42:10,858 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:42:10,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:42:10,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:42:10,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:42:10,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:42:10,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:42:10,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:42:10,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:42:10,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:42:10,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:42:10,872 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c80e5bc-0c3c-4e03-8433-11239c042443/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:42:10,918 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:42:10,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:42:10,919 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:42:10,920 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:42:10,921 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:42:10,940 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:42:10,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:42:10,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:42:10,943 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:42:10,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:42:10,945 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:42:10,945 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:42:10,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:42:10,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:42:10,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:42:10,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:42:10,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:42:10,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:42:10,948 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:42:10,948 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:42:10,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:42:10,949 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:42:10,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:42:10,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:42:10,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:42:10,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:42:10,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:42:10,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:42:10,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:42:10,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:42:10,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:42:10,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:42:10,954 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:42:10,954 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:42:10,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:42:10,955 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_7c80e5bc-0c3c-4e03-8433-11239c042443/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c80e5bc-0c3c-4e03-8433-11239c042443/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73462fb8dbdc39f07edabdd79150cbad579fbba379eb033cd2e89802bbb8b9a6 [2022-11-20 12:42:11,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:42:11,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:42:11,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:42:11,354 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:42:11,354 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:42:11,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c80e5bc-0c3c-4e03-8433-11239c042443/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2022-11-20 12:42:15,015 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:42:15,262 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:42:15,263 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c80e5bc-0c3c-4e03-8433-11239c042443/sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2022-11-20 12:42:15,271 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c80e5bc-0c3c-4e03-8433-11239c042443/bin/uautomizer-ug76WZFUDN/data/d40ca37db/bf231383f61f41d4b7bef724d9f14c19/FLAGac6eca998 [2022-11-20 12:42:15,289 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c80e5bc-0c3c-4e03-8433-11239c042443/bin/uautomizer-ug76WZFUDN/data/d40ca37db/bf231383f61f41d4b7bef724d9f14c19 [2022-11-20 12:42:15,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:42:15,294 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:42:15,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:42:15,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:42:15,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:42:15,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:42:15" (1/1) ... [2022-11-20 12:42:15,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47032491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:15, skipping insertion in model container [2022-11-20 12:42:15,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:42:15" (1/1) ... [2022-11-20 12:42:15,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:42:15,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:42:15,591 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_7c80e5bc-0c3c-4e03-8433-11239c042443/sv-benchmarks/c/weaver/chl-word-trans.wvr.c[3292,3305] [2022-11-20 12:42:15,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:42:15,625 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:42:15,684 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_7c80e5bc-0c3c-4e03-8433-11239c042443/sv-benchmarks/c/weaver/chl-word-trans.wvr.c[3292,3305] [2022-11-20 12:42:15,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:42:15,711 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:42:15,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:15 WrapperNode [2022-11-20 12:42:15,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:42:15,713 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:42:15,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:42:15,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:42:15,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:15" (1/1) ... [2022-11-20 12:42:15,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:15" (1/1) ... [2022-11-20 12:42:15,804 INFO L138 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 264 [2022-11-20 12:42:15,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:42:15,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:42:15,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:42:15,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:42:15,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:15" (1/1) ... [2022-11-20 12:42:15,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:15" (1/1) ... [2022-11-20 12:42:15,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:15" (1/1) ... [2022-11-20 12:42:15,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:15" (1/1) ... [2022-11-20 12:42:15,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:15" (1/1) ... [2022-11-20 12:42:15,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:15" (1/1) ... [2022-11-20 12:42:15,867 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:15" (1/1) ... [2022-11-20 12:42:15,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:15" (1/1) ... [2022-11-20 12:42:15,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:42:15,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:42:15,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:42:15,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:42:15,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:15" (1/1) ... [2022-11-20 12:42:15,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:42:15,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c80e5bc-0c3c-4e03-8433-11239c042443/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:42:15,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c80e5bc-0c3c-4e03-8433-11239c042443/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:42:15,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c80e5bc-0c3c-4e03-8433-11239c042443/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:42:16,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:42:16,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:42:16,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:42:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:42:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 12:42:16,007 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 12:42:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 12:42:16,009 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 12:42:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 12:42:16,009 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 12:42:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:42:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:42:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:42:16,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:42:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:42:16,013 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 12:42:16,238 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:42:16,241 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:42:17,533 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:42:17,573 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:42:17,573 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-20 12:42:17,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:42:17 BoogieIcfgContainer [2022-11-20 12:42:17,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:42:17,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:42:17,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:42:17,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:42:17,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:42:15" (1/3) ... [2022-11-20 12:42:17,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75546a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:42:17, skipping insertion in model container [2022-11-20 12:42:17,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:15" (2/3) ... [2022-11-20 12:42:17,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75546a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:42:17, skipping insertion in model container [2022-11-20 12:42:17,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:42:17" (3/3) ... [2022-11-20 12:42:17,600 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-trans.wvr.c [2022-11-20 12:42:17,617 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:42:17,630 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:42:17,630 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2022-11-20 12:42:17,631 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:42:17,893 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 12:42:17,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 636 places, 659 transitions, 1342 flow [2022-11-20 12:42:18,459 INFO L130 PetriNetUnfolder]: 33/656 cut-off events. [2022-11-20 12:42:18,460 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 12:42:18,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 656 events. 33/656 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1734 event pairs, 0 based on Foata normal form. 0/545 useless extension candidates. Maximal degree in co-relation 481. Up to 3 conditions per place. [2022-11-20 12:42:18,484 INFO L82 GeneralOperation]: Start removeDead. Operand has 636 places, 659 transitions, 1342 flow [2022-11-20 12:42:18,507 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 611 places, 632 transitions, 1282 flow [2022-11-20 12:42:18,529 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:42:18,540 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;@6c28c8eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:42:18,541 INFO L358 AbstractCegarLoop]: Starting to check reachability of 138 error locations. [2022-11-20 12:42:18,548 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-11-20 12:42:18,548 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:42:18,549 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:18,550 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] [2022-11-20 12:42:18,550 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-20 12:42:18,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:18,559 INFO L85 PathProgramCache]: Analyzing trace with hash -551007437, now seen corresponding path program 1 times [2022-11-20 12:42:18,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:18,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61309699] [2022-11-20 12:42:18,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:18,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:18,907 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 12:42:18,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:18,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61309699] [2022-11-20 12:42:18,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61309699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:18,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:18,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:18,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491510372] [2022-11-20 12:42:18,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:18,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:18,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:18,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:18,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:18,970 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 659 [2022-11-20 12:42:18,978 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 611 places, 632 transitions, 1282 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 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 12:42:18,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:18,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 659 [2022-11-20 12:42:18,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:19,961 INFO L130 PetriNetUnfolder]: 134/1888 cut-off events. [2022-11-20 12:42:19,962 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2022-11-20 12:42:20,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2081 conditions, 1888 events. 134/1888 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 12695 event pairs, 60 based on Foata normal form. 83/1576 useless extension candidates. Maximal degree in co-relation 1520. Up to 142 conditions per place. [2022-11-20 12:42:20,032 INFO L137 encePairwiseOnDemand]: 644/659 looper letters, 21 selfloop transitions, 2 changer transitions 6/619 dead transitions. [2022-11-20 12:42:20,032 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 612 places, 619 transitions, 1302 flow [2022-11-20 12:42:20,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:20,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:20,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1899 transitions. [2022-11-20 12:42:20,064 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.960546282245827 [2022-11-20 12:42:20,065 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1899 transitions. [2022-11-20 12:42:20,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1899 transitions. [2022-11-20 12:42:20,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:20,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1899 transitions. [2022-11-20 12:42:20,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 633.0) internal successors, (1899), 3 states have internal predecessors, (1899), 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 12:42:20,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 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 12:42:20,103 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 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 12:42:20,105 INFO L175 Difference]: Start difference. First operand has 611 places, 632 transitions, 1282 flow. Second operand 3 states and 1899 transitions. [2022-11-20 12:42:20,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 612 places, 619 transitions, 1302 flow [2022-11-20 12:42:20,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 606 places, 619 transitions, 1290 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 12:42:20,137 INFO L231 Difference]: Finished difference. Result has 606 places, 613 transitions, 1236 flow [2022-11-20 12:42:20,141 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1244, PETRI_DIFFERENCE_MINUEND_PLACES=604, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=617, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1236, PETRI_PLACES=606, PETRI_TRANSITIONS=613} [2022-11-20 12:42:20,148 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -5 predicate places. [2022-11-20 12:42:20,149 INFO L495 AbstractCegarLoop]: Abstraction has has 606 places, 613 transitions, 1236 flow [2022-11-20 12:42:20,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 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 12:42:20,151 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:20,151 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] [2022-11-20 12:42:20,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:42:20,152 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-20 12:42:20,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:20,152 INFO L85 PathProgramCache]: Analyzing trace with hash -792115651, now seen corresponding path program 1 times [2022-11-20 12:42:20,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:20,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230719322] [2022-11-20 12:42:20,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:20,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:20,305 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 12:42:20,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:20,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230719322] [2022-11-20 12:42:20,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230719322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:20,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:20,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:20,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77391590] [2022-11-20 12:42:20,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:20,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:20,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:20,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:20,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:20,313 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 659 [2022-11-20 12:42:20,316 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 613 transitions, 1236 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 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 12:42:20,317 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:20,317 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 659 [2022-11-20 12:42:20,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:21,275 INFO L130 PetriNetUnfolder]: 222/2276 cut-off events. [2022-11-20 12:42:21,276 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-20 12:42:21,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2595 conditions, 2276 events. 222/2276 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 17595 event pairs, 132 based on Foata normal form. 0/1806 useless extension candidates. Maximal degree in co-relation 2555. Up to 256 conditions per place. [2022-11-20 12:42:21,343 INFO L137 encePairwiseOnDemand]: 656/659 looper letters, 21 selfloop transitions, 2 changer transitions 0/612 dead transitions. [2022-11-20 12:42:21,343 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 601 places, 612 transitions, 1280 flow [2022-11-20 12:42:21,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:21,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:21,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1887 transitions. [2022-11-20 12:42:21,350 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9544764795144158 [2022-11-20 12:42:21,350 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1887 transitions. [2022-11-20 12:42:21,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1887 transitions. [2022-11-20 12:42:21,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:21,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1887 transitions. [2022-11-20 12:42:21,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 629.0) internal successors, (1887), 3 states have internal predecessors, (1887), 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 12:42:21,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 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 12:42:21,366 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 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 12:42:21,366 INFO L175 Difference]: Start difference. First operand has 606 places, 613 transitions, 1236 flow. Second operand 3 states and 1887 transitions. [2022-11-20 12:42:21,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 601 places, 612 transitions, 1280 flow [2022-11-20 12:42:21,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 599 places, 612 transitions, 1276 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:21,381 INFO L231 Difference]: Finished difference. Result has 599 places, 612 transitions, 1234 flow [2022-11-20 12:42:21,382 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1230, PETRI_DIFFERENCE_MINUEND_PLACES=597, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=612, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=610, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1234, PETRI_PLACES=599, PETRI_TRANSITIONS=612} [2022-11-20 12:42:21,383 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -12 predicate places. [2022-11-20 12:42:21,384 INFO L495 AbstractCegarLoop]: Abstraction has has 599 places, 612 transitions, 1234 flow [2022-11-20 12:42:21,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 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 12:42:21,386 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:21,387 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] [2022-11-20 12:42:21,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:42:21,388 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-20 12:42:21,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:21,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1181571082, now seen corresponding path program 1 times [2022-11-20 12:42:21,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:21,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034014451] [2022-11-20 12:42:21,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:21,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:21,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:21,514 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 12:42:21,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:21,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034014451] [2022-11-20 12:42:21,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034014451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:21,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:21,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:21,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780187450] [2022-11-20 12:42:21,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:21,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:21,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:21,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:21,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:21,522 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 659 [2022-11-20 12:42:21,525 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 599 places, 612 transitions, 1234 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 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 12:42:21,525 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:21,525 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 659 [2022-11-20 12:42:21,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:22,506 INFO L130 PetriNetUnfolder]: 236/2539 cut-off events. [2022-11-20 12:42:22,507 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-20 12:42:22,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2804 conditions, 2539 events. 236/2539 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 20195 event pairs, 132 based on Foata normal form. 0/2015 useless extension candidates. Maximal degree in co-relation 2757. Up to 250 conditions per place. [2022-11-20 12:42:22,577 INFO L137 encePairwiseOnDemand]: 656/659 looper letters, 21 selfloop transitions, 2 changer transitions 0/611 dead transitions. [2022-11-20 12:42:22,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 600 places, 611 transitions, 1278 flow [2022-11-20 12:42:22,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:22,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:22,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1887 transitions. [2022-11-20 12:42:22,586 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9544764795144158 [2022-11-20 12:42:22,586 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1887 transitions. [2022-11-20 12:42:22,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1887 transitions. [2022-11-20 12:42:22,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:22,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1887 transitions. [2022-11-20 12:42:22,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 629.0) internal successors, (1887), 3 states have internal predecessors, (1887), 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 12:42:22,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 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 12:42:22,603 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 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 12:42:22,604 INFO L175 Difference]: Start difference. First operand has 599 places, 612 transitions, 1234 flow. Second operand 3 states and 1887 transitions. [2022-11-20 12:42:22,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 600 places, 611 transitions, 1278 flow [2022-11-20 12:42:22,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 598 places, 611 transitions, 1274 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:22,622 INFO L231 Difference]: Finished difference. Result has 598 places, 611 transitions, 1232 flow [2022-11-20 12:42:22,623 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1228, PETRI_DIFFERENCE_MINUEND_PLACES=596, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=611, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=609, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1232, PETRI_PLACES=598, PETRI_TRANSITIONS=611} [2022-11-20 12:42:22,632 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -13 predicate places. [2022-11-20 12:42:22,633 INFO L495 AbstractCegarLoop]: Abstraction has has 598 places, 611 transitions, 1232 flow [2022-11-20 12:42:22,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 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 12:42:22,635 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:22,635 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] [2022-11-20 12:42:22,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:42:22,636 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-20 12:42:22,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:22,637 INFO L85 PathProgramCache]: Analyzing trace with hash -400926858, now seen corresponding path program 1 times [2022-11-20 12:42:22,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:22,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278177712] [2022-11-20 12:42:22,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:22,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:22,705 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 12:42:22,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:22,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278177712] [2022-11-20 12:42:22,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278177712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:22,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:22,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:22,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430477956] [2022-11-20 12:42:22,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:22,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:22,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:22,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:22,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:22,712 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 659 [2022-11-20 12:42:22,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 598 places, 611 transitions, 1232 flow. Second operand has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 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 12:42:22,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:22,717 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 659 [2022-11-20 12:42:22,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:23,457 INFO L130 PetriNetUnfolder]: 134/1809 cut-off events. [2022-11-20 12:42:23,457 INFO L131 PetriNetUnfolder]: For 15/20 co-relation queries the response was YES. [2022-11-20 12:42:23,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1990 conditions, 1809 events. 134/1809 cut-off events. For 15/20 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 11888 event pairs, 60 based on Foata normal form. 0/1458 useless extension candidates. Maximal degree in co-relation 1936. Up to 160 conditions per place. [2022-11-20 12:42:23,519 INFO L137 encePairwiseOnDemand]: 656/659 looper letters, 24 selfloop transitions, 2 changer transitions 0/610 dead transitions. [2022-11-20 12:42:23,519 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 599 places, 610 transitions, 1282 flow [2022-11-20 12:42:23,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:23,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:23,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1881 transitions. [2022-11-20 12:42:23,524 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9514415781487102 [2022-11-20 12:42:23,525 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1881 transitions. [2022-11-20 12:42:23,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1881 transitions. [2022-11-20 12:42:23,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:23,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1881 transitions. [2022-11-20 12:42:23,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 627.0) internal successors, (1881), 3 states have internal predecessors, (1881), 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 12:42:23,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 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 12:42:23,545 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 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 12:42:23,545 INFO L175 Difference]: Start difference. First operand has 598 places, 611 transitions, 1232 flow. Second operand 3 states and 1881 transitions. [2022-11-20 12:42:23,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 599 places, 610 transitions, 1282 flow [2022-11-20 12:42:23,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 597 places, 610 transitions, 1278 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:23,559 INFO L231 Difference]: Finished difference. Result has 597 places, 610 transitions, 1230 flow [2022-11-20 12:42:23,567 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1226, PETRI_DIFFERENCE_MINUEND_PLACES=595, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=610, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=608, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1230, PETRI_PLACES=597, PETRI_TRANSITIONS=610} [2022-11-20 12:42:23,568 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -14 predicate places. [2022-11-20 12:42:23,569 INFO L495 AbstractCegarLoop]: Abstraction has has 597 places, 610 transitions, 1230 flow [2022-11-20 12:42:23,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 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 12:42:23,571 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:23,571 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] [2022-11-20 12:42:23,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:42:23,572 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-20 12:42:23,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:23,572 INFO L85 PathProgramCache]: Analyzing trace with hash -33716672, now seen corresponding path program 1 times [2022-11-20 12:42:23,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:23,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375906422] [2022-11-20 12:42:23,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:23,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,675 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 12:42:23,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:23,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375906422] [2022-11-20 12:42:23,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375906422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:23,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:23,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:23,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074789306] [2022-11-20 12:42:23,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:23,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:23,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:23,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:23,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:23,682 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 659 [2022-11-20 12:42:23,685 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 597 places, 610 transitions, 1230 flow. Second operand has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 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 12:42:23,685 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:23,685 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 659 [2022-11-20 12:42:23,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:24,571 INFO L130 PetriNetUnfolder]: 272/2784 cut-off events. [2022-11-20 12:42:24,571 INFO L131 PetriNetUnfolder]: For 21/30 co-relation queries the response was YES. [2022-11-20 12:42:24,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3150 conditions, 2784 events. 272/2784 cut-off events. For 21/30 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 23327 event pairs, 132 based on Foata normal form. 0/2217 useless extension candidates. Maximal degree in co-relation 3089. Up to 303 conditions per place. [2022-11-20 12:42:24,645 INFO L137 encePairwiseOnDemand]: 656/659 looper letters, 24 selfloop transitions, 2 changer transitions 0/609 dead transitions. [2022-11-20 12:42:24,645 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 598 places, 609 transitions, 1280 flow [2022-11-20 12:42:24,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:24,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:24,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1881 transitions. [2022-11-20 12:42:24,650 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9514415781487102 [2022-11-20 12:42:24,650 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1881 transitions. [2022-11-20 12:42:24,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1881 transitions. [2022-11-20 12:42:24,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:24,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1881 transitions. [2022-11-20 12:42:24,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 627.0) internal successors, (1881), 3 states have internal predecessors, (1881), 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 12:42:24,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 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 12:42:24,665 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 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 12:42:24,666 INFO L175 Difference]: Start difference. First operand has 597 places, 610 transitions, 1230 flow. Second operand 3 states and 1881 transitions. [2022-11-20 12:42:24,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 598 places, 609 transitions, 1280 flow [2022-11-20 12:42:24,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 596 places, 609 transitions, 1276 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:24,679 INFO L231 Difference]: Finished difference. Result has 596 places, 609 transitions, 1228 flow [2022-11-20 12:42:24,680 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1224, PETRI_DIFFERENCE_MINUEND_PLACES=594, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=607, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1228, PETRI_PLACES=596, PETRI_TRANSITIONS=609} [2022-11-20 12:42:24,684 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -15 predicate places. [2022-11-20 12:42:24,684 INFO L495 AbstractCegarLoop]: Abstraction has has 596 places, 609 transitions, 1228 flow [2022-11-20 12:42:24,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 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 12:42:24,686 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:24,686 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] [2022-11-20 12:42:24,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:42:24,687 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-20 12:42:24,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:24,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1809012345, now seen corresponding path program 1 times [2022-11-20 12:42:24,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:24,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138023795] [2022-11-20 12:42:24,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:24,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:24,803 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 12:42:24,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:24,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138023795] [2022-11-20 12:42:24,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138023795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:24,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:24,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:24,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503663098] [2022-11-20 12:42:24,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:24,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:24,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:24,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:24,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:24,808 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 659 [2022-11-20 12:42:24,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 609 transitions, 1228 flow. Second operand has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 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 12:42:24,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:24,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 659 [2022-11-20 12:42:24,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:25,904 INFO L130 PetriNetUnfolder]: 275/2568 cut-off events. [2022-11-20 12:42:25,904 INFO L131 PetriNetUnfolder]: For 71/75 co-relation queries the response was YES. [2022-11-20 12:42:25,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2902 conditions, 2568 events. 275/2568 cut-off events. For 71/75 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 19785 event pairs, 132 based on Foata normal form. 0/2064 useless extension candidates. Maximal degree in co-relation 2834. Up to 319 conditions per place. [2022-11-20 12:42:25,990 INFO L137 encePairwiseOnDemand]: 656/659 looper letters, 24 selfloop transitions, 2 changer transitions 0/608 dead transitions. [2022-11-20 12:42:25,990 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 597 places, 608 transitions, 1278 flow [2022-11-20 12:42:25,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:25,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:25,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1881 transitions. [2022-11-20 12:42:25,997 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9514415781487102 [2022-11-20 12:42:25,997 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1881 transitions. [2022-11-20 12:42:25,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1881 transitions. [2022-11-20 12:42:25,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:25,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1881 transitions. [2022-11-20 12:42:26,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 627.0) internal successors, (1881), 3 states have internal predecessors, (1881), 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 12:42:26,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 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 12:42:26,014 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 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 12:42:26,014 INFO L175 Difference]: Start difference. First operand has 596 places, 609 transitions, 1228 flow. Second operand 3 states and 1881 transitions. [2022-11-20 12:42:26,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 597 places, 608 transitions, 1278 flow [2022-11-20 12:42:26,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 595 places, 608 transitions, 1274 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:26,032 INFO L231 Difference]: Finished difference. Result has 595 places, 608 transitions, 1226 flow [2022-11-20 12:42:26,033 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1222, PETRI_DIFFERENCE_MINUEND_PLACES=593, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=608, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=606, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1226, PETRI_PLACES=595, PETRI_TRANSITIONS=608} [2022-11-20 12:42:26,034 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -16 predicate places. [2022-11-20 12:42:26,034 INFO L495 AbstractCegarLoop]: Abstraction has has 595 places, 608 transitions, 1226 flow [2022-11-20 12:42:26,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 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 12:42:26,036 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:26,036 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 12:42:26,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:42:26,037 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-20 12:42:26,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:26,038 INFO L85 PathProgramCache]: Analyzing trace with hash 256255395, now seen corresponding path program 1 times [2022-11-20 12:42:26,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:26,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471656904] [2022-11-20 12:42:26,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:26,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:26,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:26,100 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 12:42:26,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:26,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471656904] [2022-11-20 12:42:26,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471656904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:26,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:26,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:26,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061647805] [2022-11-20 12:42:26,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:26,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:26,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:26,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:26,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:26,107 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 659 [2022-11-20 12:42:26,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 595 places, 608 transitions, 1226 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 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 12:42:26,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:26,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 659 [2022-11-20 12:42:26,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:26,629 INFO L130 PetriNetUnfolder]: 96/1578 cut-off events. [2022-11-20 12:42:26,629 INFO L131 PetriNetUnfolder]: For 11/14 co-relation queries the response was YES. [2022-11-20 12:42:26,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1687 conditions, 1578 events. 96/1578 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 9576 event pairs, 32 based on Foata normal form. 0/1305 useless extension candidates. Maximal degree in co-relation 1611. Up to 91 conditions per place. [2022-11-20 12:42:26,670 INFO L137 encePairwiseOnDemand]: 653/659 looper letters, 17 selfloop transitions, 1 changer transitions 0/603 dead transitions. [2022-11-20 12:42:26,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 592 places, 603 transitions, 1252 flow [2022-11-20 12:42:26,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:26,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:26,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1886 transitions. [2022-11-20 12:42:26,677 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9539706626201315 [2022-11-20 12:42:26,677 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1886 transitions. [2022-11-20 12:42:26,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1886 transitions. [2022-11-20 12:42:26,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:26,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1886 transitions. [2022-11-20 12:42:26,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 628.6666666666666) internal successors, (1886), 3 states have internal predecessors, (1886), 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 12:42:26,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 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 12:42:26,689 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 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 12:42:26,689 INFO L175 Difference]: Start difference. First operand has 595 places, 608 transitions, 1226 flow. Second operand 3 states and 1886 transitions. [2022-11-20 12:42:26,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 592 places, 603 transitions, 1252 flow [2022-11-20 12:42:26,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 590 places, 603 transitions, 1248 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:42:26,703 INFO L231 Difference]: Finished difference. Result has 590 places, 603 transitions, 1214 flow [2022-11-20 12:42:26,705 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1212, PETRI_DIFFERENCE_MINUEND_PLACES=588, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=603, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=602, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1214, PETRI_PLACES=590, PETRI_TRANSITIONS=603} [2022-11-20 12:42:26,706 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -21 predicate places. [2022-11-20 12:42:26,706 INFO L495 AbstractCegarLoop]: Abstraction has has 590 places, 603 transitions, 1214 flow [2022-11-20 12:42:26,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 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 12:42:26,707 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:26,708 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] [2022-11-20 12:42:26,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:42:26,708 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-20 12:42:26,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:26,709 INFO L85 PathProgramCache]: Analyzing trace with hash 650842057, now seen corresponding path program 1 times [2022-11-20 12:42:26,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:26,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179114655] [2022-11-20 12:42:26,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:26,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:26,789 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 12:42:26,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:26,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179114655] [2022-11-20 12:42:26,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179114655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:26,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:26,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:42:26,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270157850] [2022-11-20 12:42:26,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:26,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:42:26,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:26,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:42:26,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:42:26,795 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 659 [2022-11-20 12:42:26,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 603 transitions, 1214 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 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 12:42:26,798 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:26,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 659 [2022-11-20 12:42:26,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:42:27,461 INFO L130 PetriNetUnfolder]: 146/1837 cut-off events. [2022-11-20 12:42:27,461 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-11-20 12:42:27,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2027 conditions, 1837 events. 146/1837 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 11548 event pairs, 60 based on Foata normal form. 0/1501 useless extension candidates. Maximal degree in co-relation 1952. Up to 170 conditions per place. [2022-11-20 12:42:27,533 INFO L137 encePairwiseOnDemand]: 656/659 looper letters, 21 selfloop transitions, 2 changer transitions 0/602 dead transitions. [2022-11-20 12:42:27,533 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 602 transitions, 1258 flow [2022-11-20 12:42:27,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:42:27,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:42:27,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1887 transitions. [2022-11-20 12:42:27,539 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9544764795144158 [2022-11-20 12:42:27,539 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1887 transitions. [2022-11-20 12:42:27,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1887 transitions. [2022-11-20 12:42:27,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:42:27,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1887 transitions. [2022-11-20 12:42:27,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 629.0) internal successors, (1887), 3 states have internal predecessors, (1887), 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 12:42:27,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 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 12:42:27,556 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 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 12:42:27,556 INFO L175 Difference]: Start difference. First operand has 590 places, 603 transitions, 1214 flow. Second operand 3 states and 1887 transitions. [2022-11-20 12:42:27,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 591 places, 602 transitions, 1258 flow [2022-11-20 12:42:27,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 590 places, 602 transitions, 1257 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:42:27,569 INFO L231 Difference]: Finished difference. Result has 590 places, 602 transitions, 1215 flow [2022-11-20 12:42:27,570 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1211, PETRI_DIFFERENCE_MINUEND_PLACES=588, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=600, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1215, PETRI_PLACES=590, PETRI_TRANSITIONS=602} [2022-11-20 12:42:27,574 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -21 predicate places. [2022-11-20 12:42:27,575 INFO L495 AbstractCegarLoop]: Abstraction has has 590 places, 602 transitions, 1215 flow [2022-11-20 12:42:27,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 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 12:42:27,576 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:42:27,576 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] [2022-11-20 12:42:27,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:42:27,577 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-20 12:42:27,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:27,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1108541506, now seen corresponding path program 1 times [2022-11-20 12:42:27,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:27,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701601192] [2022-11-20 12:42:27,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:27,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:28,338 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 12:42:28,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:28,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701601192] [2022-11-20 12:42:28,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701601192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:28,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:28,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:42:28,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820510605] [2022-11-20 12:42:28,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:28,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:42:28,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:28,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:42:28,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:42:28,348 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 498 out of 659 [2022-11-20 12:42:28,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 602 transitions, 1215 flow. Second operand has 6 states, 6 states have (on average 499.8333333333333) internal successors, (2999), 6 states have internal predecessors, (2999), 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 12:42:28,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:42:28,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 498 of 659 [2022-11-20 12:42:28,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand