./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9117f2d-a3e8-4216-b5e5-fe7a5b0fadb6/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9117f2d-a3e8-4216-b5e5-fe7a5b0fadb6/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_c9117f2d-a3e8-4216-b5e5-fe7a5b0fadb6/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9117f2d-a3e8-4216-b5e5-fe7a5b0fadb6/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9117f2d-a3e8-4216-b5e5-fe7a5b0fadb6/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_c9117f2d-a3e8-4216-b5e5-fe7a5b0fadb6/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 9ceec73f9e554c485344f34d2b1865bfa0707ac614302bf3f054f6fb35398f61 --- 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 12:33:36,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:33:36,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:33:36,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:33:36,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:33:36,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:33:36,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:33:36,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:33:36,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:33:36,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:33:36,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:33:36,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:33:36,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:33:36,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:33:36,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:33:36,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:33:36,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:33:36,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:33:36,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:33:36,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:33:36,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:33:36,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:33:36,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:33:36,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:33:36,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:33:36,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:33:36,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:33:36,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:33:36,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:33:36,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:33:36,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:33:36,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:33:36,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:33:36,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:33:36,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:33:36,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:33:36,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:33:36,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:33:36,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:33:36,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:33:36,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:33:36,976 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9117f2d-a3e8-4216-b5e5-fe7a5b0fadb6/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:33:37,012 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:33:37,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:33:37,013 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:33:37,014 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:33:37,014 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:33:37,015 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:33:37,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:33:37,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:33:37,016 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:33:37,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:33:37,017 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:33:37,018 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:33:37,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:33:37,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:33:37,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:33:37,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:33:37,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:33:37,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:33:37,019 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:33:37,019 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:33:37,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:33:37,020 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:33:37,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:33:37,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:33:37,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:33:37,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:33:37,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:33:37,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:33:37,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:33:37,022 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:33:37,022 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:33:37,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:33:37,023 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:33:37,023 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:33:37,023 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:33:37,023 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_c9117f2d-a3e8-4216-b5e5-fe7a5b0fadb6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9117f2d-a3e8-4216-b5e5-fe7a5b0fadb6/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ceec73f9e554c485344f34d2b1865bfa0707ac614302bf3f054f6fb35398f61 [2022-11-20 12:33:37,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:33:37,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:33:37,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:33:37,354 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:33:37,355 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:33:37,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9117f2d-a3e8-4216-b5e5-fe7a5b0fadb6/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c [2022-11-20 12:33:40,346 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:33:40,589 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:33:40,590 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9117f2d-a3e8-4216-b5e5-fe7a5b0fadb6/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c [2022-11-20 12:33:40,599 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9117f2d-a3e8-4216-b5e5-fe7a5b0fadb6/bin/uautomizer-ug76WZFUDN/data/3be74af33/21506813a7aa4bf78fe6fb005ebd897f/FLAGed5652e5f [2022-11-20 12:33:40,617 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9117f2d-a3e8-4216-b5e5-fe7a5b0fadb6/bin/uautomizer-ug76WZFUDN/data/3be74af33/21506813a7aa4bf78fe6fb005ebd897f [2022-11-20 12:33:40,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:33:40,625 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:33:40,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:33:40,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:33:40,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:33:40,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:33:40" (1/1) ... [2022-11-20 12:33:40,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78b6538a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:40, skipping insertion in model container [2022-11-20 12:33:40,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:33:40" (1/1) ... [2022-11-20 12:33:40,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:33:40,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:33:40,882 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_c9117f2d-a3e8-4216-b5e5-fe7a5b0fadb6/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c[4293,4306] [2022-11-20 12:33:40,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:33:40,899 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:33:40,949 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_c9117f2d-a3e8-4216-b5e5-fe7a5b0fadb6/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c[4293,4306] [2022-11-20 12:33:40,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:33:40,988 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:33:40,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:40 WrapperNode [2022-11-20 12:33:40,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:33:40,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:33:40,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:33:40,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:33:40,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:40" (1/1) ... [2022-11-20 12:33:41,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:40" (1/1) ... [2022-11-20 12:33:41,058 INFO L138 Inliner]: procedures = 26, calls = 79, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 645 [2022-11-20 12:33:41,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:33:41,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:33:41,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:33:41,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:33:41,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:40" (1/1) ... [2022-11-20 12:33:41,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:40" (1/1) ... [2022-11-20 12:33:41,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:40" (1/1) ... [2022-11-20 12:33:41,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:40" (1/1) ... [2022-11-20 12:33:41,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:40" (1/1) ... [2022-11-20 12:33:41,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:40" (1/1) ... [2022-11-20 12:33:41,111 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:40" (1/1) ... [2022-11-20 12:33:41,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:40" (1/1) ... [2022-11-20 12:33:41,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:33:41,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:33:41,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:33:41,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:33:41,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:40" (1/1) ... [2022-11-20 12:33:41,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:33:41,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9117f2d-a3e8-4216-b5e5-fe7a5b0fadb6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:33:41,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9117f2d-a3e8-4216-b5e5-fe7a5b0fadb6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:33:41,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9117f2d-a3e8-4216-b5e5-fe7a5b0fadb6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:33:41,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:33:41,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:33:41,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:33:41,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:33:41,218 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 12:33:41,218 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 12:33:41,219 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 12:33:41,219 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 12:33:41,219 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 12:33:41,219 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 12:33:41,219 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-20 12:33:41,219 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-20 12:33:41,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:33:41,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 12:33:41,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 12:33:41,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:33:41,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:33:41,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:33:41,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:33:41,222 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 12:33:41,397 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:33:41,399 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:33:42,493 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:33:43,337 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:33:43,337 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-20 12:33:43,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:33:43 BoogieIcfgContainer [2022-11-20 12:33:43,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:33:43,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:33:43,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:33:43,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:33:43,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:33:40" (1/3) ... [2022-11-20 12:33:43,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56335f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:33:43, skipping insertion in model container [2022-11-20 12:33:43,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:40" (2/3) ... [2022-11-20 12:33:43,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56335f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:33:43, skipping insertion in model container [2022-11-20 12:33:43,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:33:43" (3/3) ... [2022-11-20 12:33:43,353 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt.wvr.c [2022-11-20 12:33:43,363 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:33:43,374 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:33:43,374 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 99 error locations. [2022-11-20 12:33:43,374 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:33:43,625 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-20 12:33:43,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 457 places, 467 transitions, 966 flow [2022-11-20 12:33:43,933 INFO L130 PetriNetUnfolder]: 23/463 cut-off events. [2022-11-20 12:33:43,933 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 12:33:43,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 463 events. 23/463 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 610 event pairs, 0 based on Foata normal form. 0/341 useless extension candidates. Maximal degree in co-relation 378. Up to 2 conditions per place. [2022-11-20 12:33:43,945 INFO L82 GeneralOperation]: Start removeDead. Operand has 457 places, 467 transitions, 966 flow [2022-11-20 12:33:43,958 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 432 places, 441 transitions, 906 flow [2022-11-20 12:33:43,969 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:33:43,978 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;@5e71bfc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:33:43,978 INFO L358 AbstractCegarLoop]: Starting to check reachability of 173 error locations. [2022-11-20 12:33:43,984 INFO L130 PetriNetUnfolder]: 0/34 cut-off events. [2022-11-20 12:33:43,984 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:33:43,984 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:43,985 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] [2022-11-20 12:33:43,986 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:33:43,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:43,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1112154874, now seen corresponding path program 1 times [2022-11-20 12:33:44,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:44,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603762008] [2022-11-20 12:33:44,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:44,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:44,244 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 12:33:44,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:44,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603762008] [2022-11-20 12:33:44,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603762008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:44,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:44,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:33:44,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285543844] [2022-11-20 12:33:44,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:44,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:33:44,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:44,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:33:44,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:33:44,295 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 467 [2022-11-20 12:33:44,300 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 441 transitions, 906 flow. Second operand has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 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 12:33:44,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:44,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 467 [2022-11-20 12:33:44,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:45,443 INFO L130 PetriNetUnfolder]: 748/1795 cut-off events. [2022-11-20 12:33:45,443 INFO L131 PetriNetUnfolder]: For 314/420 co-relation queries the response was YES. [2022-11-20 12:33:45,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3002 conditions, 1795 events. 748/1795 cut-off events. For 314/420 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9172 event pairs, 485 based on Foata normal form. 265/1823 useless extension candidates. Maximal degree in co-relation 2559. Up to 1013 conditions per place. [2022-11-20 12:33:45,466 INFO L137 encePairwiseOnDemand]: 382/467 looper letters, 31 selfloop transitions, 2 changer transitions 6/358 dead transitions. [2022-11-20 12:33:45,466 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 358 transitions, 806 flow [2022-11-20 12:33:45,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:33:45,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:33:45,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1163 transitions. [2022-11-20 12:33:45,488 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8301213418986438 [2022-11-20 12:33:45,489 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1163 transitions. [2022-11-20 12:33:45,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1163 transitions. [2022-11-20 12:33:45,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:45,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1163 transitions. [2022-11-20 12:33:45,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.6666666666667) internal successors, (1163), 3 states have internal predecessors, (1163), 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 12:33:45,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:45,519 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:45,521 INFO L175 Difference]: Start difference. First operand has 432 places, 441 transitions, 906 flow. Second operand 3 states and 1163 transitions. [2022-11-20 12:33:45,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 358 transitions, 806 flow [2022-11-20 12:33:45,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 358 transitions, 790 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-20 12:33:45,540 INFO L231 Difference]: Finished difference. Result has 355 places, 352 transitions, 716 flow [2022-11-20 12:33:45,542 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=716, PETRI_PLACES=355, PETRI_TRANSITIONS=352} [2022-11-20 12:33:45,549 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -77 predicate places. [2022-11-20 12:33:45,549 INFO L495 AbstractCegarLoop]: Abstraction has has 355 places, 352 transitions, 716 flow [2022-11-20 12:33:45,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 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 12:33:45,550 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:45,550 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:45,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:33:45,551 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:33:45,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:45,552 INFO L85 PathProgramCache]: Analyzing trace with hash -2139801136, now seen corresponding path program 1 times [2022-11-20 12:33:45,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:45,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447832323] [2022-11-20 12:33:45,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:45,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:45,657 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 12:33:45,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:45,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447832323] [2022-11-20 12:33:45,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447832323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:45,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:45,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:33:45,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975045605] [2022-11-20 12:33:45,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:45,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:33:45,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:45,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:33:45,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:33:45,662 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 467 [2022-11-20 12:33:45,703 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 352 transitions, 716 flow. Second operand has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 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 12:33:45,703 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:45,703 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 467 [2022-11-20 12:33:45,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:46,488 INFO L130 PetriNetUnfolder]: 748/1788 cut-off events. [2022-11-20 12:33:46,488 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-20 12:33:46,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2876 conditions, 1788 events. 748/1788 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9206 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2833. Up to 1013 conditions per place. [2022-11-20 12:33:46,502 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 31 selfloop transitions, 2 changer transitions 0/351 dead transitions. [2022-11-20 12:33:46,503 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 351 transitions, 780 flow [2022-11-20 12:33:46,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:33:46,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:33:46,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1081 transitions. [2022-11-20 12:33:46,507 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7715917201998572 [2022-11-20 12:33:46,507 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1081 transitions. [2022-11-20 12:33:46,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1081 transitions. [2022-11-20 12:33:46,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:46,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1081 transitions. [2022-11-20 12:33:46,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 360.3333333333333) internal successors, (1081), 3 states have internal predecessors, (1081), 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 12:33:46,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:46,515 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:46,515 INFO L175 Difference]: Start difference. First operand has 355 places, 352 transitions, 716 flow. Second operand 3 states and 1081 transitions. [2022-11-20 12:33:46,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 351 transitions, 780 flow [2022-11-20 12:33:46,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 351 transitions, 776 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:33:46,526 INFO L231 Difference]: Finished difference. Result has 348 places, 351 transitions, 714 flow [2022-11-20 12:33:46,527 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=714, PETRI_PLACES=348, PETRI_TRANSITIONS=351} [2022-11-20 12:33:46,528 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -84 predicate places. [2022-11-20 12:33:46,528 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 351 transitions, 714 flow [2022-11-20 12:33:46,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 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 12:33:46,529 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:46,529 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] [2022-11-20 12:33:46,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:33:46,530 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:33:46,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:46,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1526417614, now seen corresponding path program 1 times [2022-11-20 12:33:46,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:46,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210407596] [2022-11-20 12:33:46,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:46,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:46,638 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 12:33:46,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:46,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210407596] [2022-11-20 12:33:46,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210407596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:46,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:46,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:33:46,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569480598] [2022-11-20 12:33:46,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:46,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:33:46,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:46,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:33:46,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:33:46,642 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-20 12:33:46,644 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 351 transitions, 714 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 12:33:46,644 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:46,644 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-20 12:33:46,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:47,363 INFO L130 PetriNetUnfolder]: 748/1787 cut-off events. [2022-11-20 12:33:47,364 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-20 12:33:47,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2872 conditions, 1787 events. 748/1787 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9203 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2822. Up to 1010 conditions per place. [2022-11-20 12:33:47,380 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/350 dead transitions. [2022-11-20 12:33:47,380 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 350 transitions, 772 flow [2022-11-20 12:33:47,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:33:47,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:33:47,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-20 12:33:47,385 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-20 12:33:47,386 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-20 12:33:47,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-20 12:33:47,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:47,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-20 12:33:47,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 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 12:33:47,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:47,395 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:47,395 INFO L175 Difference]: Start difference. First operand has 348 places, 351 transitions, 714 flow. Second operand 3 states and 1087 transitions. [2022-11-20 12:33:47,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 350 transitions, 772 flow [2022-11-20 12:33:47,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 350 transitions, 768 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:33:47,404 INFO L231 Difference]: Finished difference. Result has 347 places, 350 transitions, 712 flow [2022-11-20 12:33:47,405 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=712, PETRI_PLACES=347, PETRI_TRANSITIONS=350} [2022-11-20 12:33:47,407 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -85 predicate places. [2022-11-20 12:33:47,408 INFO L495 AbstractCegarLoop]: Abstraction has has 347 places, 350 transitions, 712 flow [2022-11-20 12:33:47,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 12:33:47,409 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:47,409 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] [2022-11-20 12:33:47,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:33:47,409 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:33:47,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:47,410 INFO L85 PathProgramCache]: Analyzing trace with hash -713439174, now seen corresponding path program 1 times [2022-11-20 12:33:47,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:47,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568280744] [2022-11-20 12:33:47,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:47,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:47,496 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 12:33:47,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:47,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568280744] [2022-11-20 12:33:47,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568280744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:47,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:47,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:33:47,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079421405] [2022-11-20 12:33:47,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:47,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:33:47,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:47,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:33:47,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:33:47,501 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-20 12:33:47,502 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 350 transitions, 712 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 12:33:47,503 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:47,503 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-20 12:33:47,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:48,099 INFO L130 PetriNetUnfolder]: 748/1786 cut-off events. [2022-11-20 12:33:48,100 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-20 12:33:48,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2871 conditions, 1786 events. 748/1786 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9199 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2814. Up to 1010 conditions per place. [2022-11-20 12:33:48,118 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/349 dead transitions. [2022-11-20 12:33:48,118 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 349 transitions, 770 flow [2022-11-20 12:33:48,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:33:48,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:33:48,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-20 12:33:48,122 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-20 12:33:48,123 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-20 12:33:48,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-20 12:33:48,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:48,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-20 12:33:48,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 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 12:33:48,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:48,132 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:48,133 INFO L175 Difference]: Start difference. First operand has 347 places, 350 transitions, 712 flow. Second operand 3 states and 1087 transitions. [2022-11-20 12:33:48,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 349 transitions, 770 flow [2022-11-20 12:33:48,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 349 transitions, 766 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:33:48,141 INFO L231 Difference]: Finished difference. Result has 346 places, 349 transitions, 710 flow [2022-11-20 12:33:48,142 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=710, PETRI_PLACES=346, PETRI_TRANSITIONS=349} [2022-11-20 12:33:48,143 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -86 predicate places. [2022-11-20 12:33:48,143 INFO L495 AbstractCegarLoop]: Abstraction has has 346 places, 349 transitions, 710 flow [2022-11-20 12:33:48,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 12:33:48,145 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:48,145 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] [2022-11-20 12:33:48,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:33:48,146 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:33:48,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:48,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1034042746, now seen corresponding path program 1 times [2022-11-20 12:33:48,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:48,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695639113] [2022-11-20 12:33:48,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:48,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:48,247 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 12:33:48,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:48,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695639113] [2022-11-20 12:33:48,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695639113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:48,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:48,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:33:48,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947193841] [2022-11-20 12:33:48,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:48,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:33:48,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:48,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:33:48,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:33:48,252 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-20 12:33:48,253 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 349 transitions, 710 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 12:33:48,254 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:48,254 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-20 12:33:48,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:48,833 INFO L130 PetriNetUnfolder]: 748/1785 cut-off events. [2022-11-20 12:33:48,834 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-20 12:33:48,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2870 conditions, 1785 events. 748/1785 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9202 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2806. Up to 1010 conditions per place. [2022-11-20 12:33:48,852 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/348 dead transitions. [2022-11-20 12:33:48,852 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 348 transitions, 768 flow [2022-11-20 12:33:48,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:33:48,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:33:48,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-20 12:33:48,855 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-20 12:33:48,855 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-20 12:33:48,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-20 12:33:48,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:48,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-20 12:33:48,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 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 12:33:48,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:48,864 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:48,864 INFO L175 Difference]: Start difference. First operand has 346 places, 349 transitions, 710 flow. Second operand 3 states and 1087 transitions. [2022-11-20 12:33:48,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 348 transitions, 768 flow [2022-11-20 12:33:48,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 348 transitions, 764 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:33:48,875 INFO L231 Difference]: Finished difference. Result has 345 places, 348 transitions, 708 flow [2022-11-20 12:33:48,876 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=708, PETRI_PLACES=345, PETRI_TRANSITIONS=348} [2022-11-20 12:33:48,879 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -87 predicate places. [2022-11-20 12:33:48,879 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 348 transitions, 708 flow [2022-11-20 12:33:48,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 12:33:48,880 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:48,881 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] [2022-11-20 12:33:48,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:33:48,881 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:33:48,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:48,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1281892483, now seen corresponding path program 1 times [2022-11-20 12:33:48,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:48,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623701350] [2022-11-20 12:33:48,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:48,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:48,948 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 12:33:48,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:48,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623701350] [2022-11-20 12:33:48,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623701350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:48,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:48,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:33:48,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967376015] [2022-11-20 12:33:48,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:48,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:33:48,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:48,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:33:48,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:33:48,953 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-20 12:33:48,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 348 transitions, 708 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 12:33:48,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:48,955 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-20 12:33:48,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:49,501 INFO L130 PetriNetUnfolder]: 748/1784 cut-off events. [2022-11-20 12:33:49,502 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-20 12:33:49,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2869 conditions, 1784 events. 748/1784 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9163 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2798. Up to 1010 conditions per place. [2022-11-20 12:33:49,515 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/347 dead transitions. [2022-11-20 12:33:49,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 347 transitions, 766 flow [2022-11-20 12:33:49,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:33:49,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:33:49,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-20 12:33:49,519 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-20 12:33:49,519 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-20 12:33:49,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-20 12:33:49,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:49,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-20 12:33:49,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 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 12:33:49,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:49,527 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:49,527 INFO L175 Difference]: Start difference. First operand has 345 places, 348 transitions, 708 flow. Second operand 3 states and 1087 transitions. [2022-11-20 12:33:49,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 347 transitions, 766 flow [2022-11-20 12:33:49,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 347 transitions, 762 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:33:49,533 INFO L231 Difference]: Finished difference. Result has 344 places, 347 transitions, 706 flow [2022-11-20 12:33:49,534 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=706, PETRI_PLACES=344, PETRI_TRANSITIONS=347} [2022-11-20 12:33:49,535 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -88 predicate places. [2022-11-20 12:33:49,535 INFO L495 AbstractCegarLoop]: Abstraction has has 344 places, 347 transitions, 706 flow [2022-11-20 12:33:49,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 12:33:49,536 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:49,536 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:49,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:33:49,537 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:33:49,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:49,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1846580314, now seen corresponding path program 1 times [2022-11-20 12:33:49,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:49,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62767349] [2022-11-20 12:33:49,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:49,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:49,598 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 12:33:49,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:49,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62767349] [2022-11-20 12:33:49,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62767349] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:49,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:49,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:33:49,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969069661] [2022-11-20 12:33:49,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:49,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:33:49,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:49,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:33:49,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:33:49,603 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-20 12:33:49,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 347 transitions, 706 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 12:33:49,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:49,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-20 12:33:49,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:50,200 INFO L130 PetriNetUnfolder]: 748/1783 cut-off events. [2022-11-20 12:33:50,200 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-20 12:33:50,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2868 conditions, 1783 events. 748/1783 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9183 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2790. Up to 1010 conditions per place. [2022-11-20 12:33:50,217 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/346 dead transitions. [2022-11-20 12:33:50,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 346 transitions, 764 flow [2022-11-20 12:33:50,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:33:50,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:33:50,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-20 12:33:50,221 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-20 12:33:50,222 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-20 12:33:50,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-20 12:33:50,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:50,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-20 12:33:50,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 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 12:33:50,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:50,230 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:50,230 INFO L175 Difference]: Start difference. First operand has 344 places, 347 transitions, 706 flow. Second operand 3 states and 1087 transitions. [2022-11-20 12:33:50,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 346 transitions, 764 flow [2022-11-20 12:33:50,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 346 transitions, 760 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:33:50,238 INFO L231 Difference]: Finished difference. Result has 343 places, 346 transitions, 704 flow [2022-11-20 12:33:50,239 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=704, PETRI_PLACES=343, PETRI_TRANSITIONS=346} [2022-11-20 12:33:50,239 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -89 predicate places. [2022-11-20 12:33:50,239 INFO L495 AbstractCegarLoop]: Abstraction has has 343 places, 346 transitions, 704 flow [2022-11-20 12:33:50,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 12:33:50,240 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:50,241 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] [2022-11-20 12:33:50,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:33:50,241 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:33:50,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:50,242 INFO L85 PathProgramCache]: Analyzing trace with hash -315747331, now seen corresponding path program 1 times [2022-11-20 12:33:50,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:50,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134866659] [2022-11-20 12:33:50,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:50,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:50,286 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 12:33:50,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:50,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134866659] [2022-11-20 12:33:50,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134866659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:50,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:50,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:33:50,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677623629] [2022-11-20 12:33:50,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:50,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:33:50,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:50,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:33:50,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:33:50,291 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-20 12:33:50,292 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 346 transitions, 704 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 12:33:50,292 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:50,292 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-20 12:33:50,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:50,833 INFO L130 PetriNetUnfolder]: 748/1782 cut-off events. [2022-11-20 12:33:50,834 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-20 12:33:50,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2867 conditions, 1782 events. 748/1782 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9207 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2782. Up to 1010 conditions per place. [2022-11-20 12:33:50,848 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/345 dead transitions. [2022-11-20 12:33:50,848 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 345 transitions, 762 flow [2022-11-20 12:33:50,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:33:50,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:33:50,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-20 12:33:50,852 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-20 12:33:50,852 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-20 12:33:50,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-20 12:33:50,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:50,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-20 12:33:50,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 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 12:33:50,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:50,859 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:50,860 INFO L175 Difference]: Start difference. First operand has 343 places, 346 transitions, 704 flow. Second operand 3 states and 1087 transitions. [2022-11-20 12:33:50,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 345 transitions, 762 flow [2022-11-20 12:33:50,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 345 transitions, 758 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:33:50,867 INFO L231 Difference]: Finished difference. Result has 342 places, 345 transitions, 702 flow [2022-11-20 12:33:50,867 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=702, PETRI_PLACES=342, PETRI_TRANSITIONS=345} [2022-11-20 12:33:50,868 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -90 predicate places. [2022-11-20 12:33:50,869 INFO L495 AbstractCegarLoop]: Abstraction has has 342 places, 345 transitions, 702 flow [2022-11-20 12:33:50,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 12:33:50,869 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:50,870 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:50,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:33:50,870 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:33:50,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:50,871 INFO L85 PathProgramCache]: Analyzing trace with hash 2027061885, now seen corresponding path program 1 times [2022-11-20 12:33:50,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:50,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808224687] [2022-11-20 12:33:50,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:50,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:50,921 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 12:33:50,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:50,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808224687] [2022-11-20 12:33:50,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808224687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:50,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:50,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:33:50,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658572501] [2022-11-20 12:33:50,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:50,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:33:50,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:50,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:33:50,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:33:50,926 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-20 12:33:50,927 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 345 transitions, 702 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 12:33:50,927 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:50,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-20 12:33:50,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:51,520 INFO L130 PetriNetUnfolder]: 748/1781 cut-off events. [2022-11-20 12:33:51,520 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-20 12:33:51,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2866 conditions, 1781 events. 748/1781 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9207 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2774. Up to 1010 conditions per place. [2022-11-20 12:33:51,536 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/344 dead transitions. [2022-11-20 12:33:51,537 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 344 transitions, 760 flow [2022-11-20 12:33:51,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:33:51,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:33:51,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-20 12:33:51,541 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-20 12:33:51,541 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-20 12:33:51,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-20 12:33:51,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:51,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-20 12:33:51,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 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 12:33:51,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:51,549 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:51,549 INFO L175 Difference]: Start difference. First operand has 342 places, 345 transitions, 702 flow. Second operand 3 states and 1087 transitions. [2022-11-20 12:33:51,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 344 transitions, 760 flow [2022-11-20 12:33:51,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 344 transitions, 756 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:33:51,557 INFO L231 Difference]: Finished difference. Result has 341 places, 344 transitions, 700 flow [2022-11-20 12:33:51,558 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=700, PETRI_PLACES=341, PETRI_TRANSITIONS=344} [2022-11-20 12:33:51,558 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -91 predicate places. [2022-11-20 12:33:51,559 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 344 transitions, 700 flow [2022-11-20 12:33:51,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 12:33:51,560 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:51,560 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] [2022-11-20 12:33:51,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:33:51,560 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:33:51,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:51,561 INFO L85 PathProgramCache]: Analyzing trace with hash -237724499, now seen corresponding path program 1 times [2022-11-20 12:33:51,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:51,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593312462] [2022-11-20 12:33:51,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:51,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:51,613 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 12:33:51,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:51,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593312462] [2022-11-20 12:33:51,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593312462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:51,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:51,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:33:51,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802644936] [2022-11-20 12:33:51,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:51,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:33:51,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:51,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:33:51,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:33:51,618 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-20 12:33:51,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 344 transitions, 700 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 12:33:51,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:51,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-20 12:33:51,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:52,222 INFO L130 PetriNetUnfolder]: 748/1780 cut-off events. [2022-11-20 12:33:52,222 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-20 12:33:52,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2861 conditions, 1780 events. 748/1780 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9211 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2761. Up to 1005 conditions per place. [2022-11-20 12:33:52,237 INFO L137 encePairwiseOnDemand]: 465/467 looper letters, 25 selfloop transitions, 1 changer transitions 0/343 dead transitions. [2022-11-20 12:33:52,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 343 transitions, 750 flow [2022-11-20 12:33:52,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:33:52,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:33:52,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1092 transitions. [2022-11-20 12:33:52,242 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7794432548179872 [2022-11-20 12:33:52,242 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1092 transitions. [2022-11-20 12:33:52,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1092 transitions. [2022-11-20 12:33:52,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:52,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1092 transitions. [2022-11-20 12:33:52,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.0) internal successors, (1092), 3 states have internal predecessors, (1092), 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 12:33:52,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:52,250 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:52,251 INFO L175 Difference]: Start difference. First operand has 341 places, 344 transitions, 700 flow. Second operand 3 states and 1092 transitions. [2022-11-20 12:33:52,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 343 transitions, 750 flow [2022-11-20 12:33:52,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 343 transitions, 746 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:33:52,258 INFO L231 Difference]: Finished difference. Result has 340 places, 343 transitions, 696 flow [2022-11-20 12:33:52,259 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=696, PETRI_PLACES=340, PETRI_TRANSITIONS=343} [2022-11-20 12:33:52,260 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -92 predicate places. [2022-11-20 12:33:52,260 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 343 transitions, 696 flow [2022-11-20 12:33:52,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 12:33:52,261 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:52,261 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:52,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:33:52,262 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:33:52,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:52,262 INFO L85 PathProgramCache]: Analyzing trace with hash -191282333, now seen corresponding path program 1 times [2022-11-20 12:33:52,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:52,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612231876] [2022-11-20 12:33:52,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:52,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:52,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:52,329 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 12:33:52,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:52,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612231876] [2022-11-20 12:33:52,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612231876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:52,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:52,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:33:52,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513414063] [2022-11-20 12:33:52,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:52,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:33:52,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:52,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:33:52,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:33:52,334 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-20 12:33:52,335 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 343 transitions, 696 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 12:33:52,336 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:52,336 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-20 12:33:52,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:53,150 INFO L130 PetriNetUnfolder]: 748/1779 cut-off events. [2022-11-20 12:33:53,150 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-20 12:33:53,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2860 conditions, 1779 events. 748/1779 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9204 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2761. Up to 1007 conditions per place. [2022-11-20 12:33:53,167 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 25 selfloop transitions, 2 changer transitions 0/342 dead transitions. [2022-11-20 12:33:53,167 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 342 transitions, 748 flow [2022-11-20 12:33:53,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:33:53,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:33:53,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1093 transitions. [2022-11-20 12:33:53,172 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7801570306923626 [2022-11-20 12:33:53,173 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1093 transitions. [2022-11-20 12:33:53,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1093 transitions. [2022-11-20 12:33:53,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:53,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1093 transitions. [2022-11-20 12:33:53,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.3333333333333) internal successors, (1093), 3 states have internal predecessors, (1093), 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 12:33:53,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:53,184 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:53,185 INFO L175 Difference]: Start difference. First operand has 340 places, 343 transitions, 696 flow. Second operand 3 states and 1093 transitions. [2022-11-20 12:33:53,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 342 transitions, 748 flow [2022-11-20 12:33:53,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 342 transitions, 747 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:33:53,194 INFO L231 Difference]: Finished difference. Result has 340 places, 342 transitions, 697 flow [2022-11-20 12:33:53,195 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=697, PETRI_PLACES=340, PETRI_TRANSITIONS=342} [2022-11-20 12:33:53,196 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -92 predicate places. [2022-11-20 12:33:53,196 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 342 transitions, 697 flow [2022-11-20 12:33:53,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 12:33:53,198 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:53,198 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:53,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:33:53,199 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:33:53,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:53,199 INFO L85 PathProgramCache]: Analyzing trace with hash -443011027, now seen corresponding path program 1 times [2022-11-20 12:33:53,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:53,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564519523] [2022-11-20 12:33:53,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:53,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:53,897 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 12:33:53,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:53,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564519523] [2022-11-20 12:33:53,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564519523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:53,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:53,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:33:53,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644076412] [2022-11-20 12:33:53,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:53,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:33:53,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:53,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:33:53,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:33:53,902 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 467 [2022-11-20 12:33:53,905 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 342 transitions, 697 flow. Second operand has 6 states, 6 states have (on average 304.8333333333333) internal successors, (1829), 6 states have internal predecessors, (1829), 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 12:33:53,905 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:53,905 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 467 [2022-11-20 12:33:53,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:57,101 INFO L130 PetriNetUnfolder]: 4978/7413 cut-off events. [2022-11-20 12:33:57,102 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:33:57,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13905 conditions, 7413 events. 4978/7413 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 36121 event pairs, 3467 based on Foata normal form. 0/6982 useless extension candidates. Maximal degree in co-relation 13807. Up to 6408 conditions per place. [2022-11-20 12:33:57,165 INFO L137 encePairwiseOnDemand]: 455/467 looper letters, 68 selfloop transitions, 10 changer transitions 0/340 dead transitions. [2022-11-20 12:33:57,165 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 340 transitions, 849 flow [2022-11-20 12:33:57,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:33:57,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:33:57,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1898 transitions. [2022-11-20 12:33:57,173 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6773733047822984 [2022-11-20 12:33:57,173 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1898 transitions. [2022-11-20 12:33:57,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1898 transitions. [2022-11-20 12:33:57,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:57,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1898 transitions. [2022-11-20 12:33:57,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 316.3333333333333) internal successors, (1898), 6 states have internal predecessors, (1898), 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 12:33:57,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 467.0) internal successors, (3269), 7 states have internal predecessors, (3269), 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 12:33:57,190 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 467.0) internal successors, (3269), 7 states have internal predecessors, (3269), 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 12:33:57,190 INFO L175 Difference]: Start difference. First operand has 340 places, 342 transitions, 697 flow. Second operand 6 states and 1898 transitions. [2022-11-20 12:33:57,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 340 transitions, 849 flow [2022-11-20 12:33:57,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 340 transitions, 845 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:33:57,199 INFO L231 Difference]: Finished difference. Result has 341 places, 340 transitions, 709 flow [2022-11-20 12:33:57,200 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=709, PETRI_PLACES=341, PETRI_TRANSITIONS=340} [2022-11-20 12:33:57,203 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -91 predicate places. [2022-11-20 12:33:57,203 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 340 transitions, 709 flow [2022-11-20 12:33:57,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 304.8333333333333) internal successors, (1829), 6 states have internal predecessors, (1829), 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 12:33:57,204 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:57,205 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:57,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:33:57,205 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:33:57,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:57,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1184946860, now seen corresponding path program 1 times [2022-11-20 12:33:57,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:57,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923797002] [2022-11-20 12:33:57,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:57,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:57,295 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 12:33:57,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:57,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923797002] [2022-11-20 12:33:57,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923797002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:57,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:57,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:33:57,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720556323] [2022-11-20 12:33:57,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:57,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:33:57,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:57,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:33:57,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:33:57,305 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-20 12:33:57,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 340 transitions, 709 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 12:33:57,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:57,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-20 12:33:57,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:58,100 INFO L130 PetriNetUnfolder]: 748/1776 cut-off events. [2022-11-20 12:33:58,100 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-20 12:33:58,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2866 conditions, 1776 events. 748/1776 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9203 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2833. Up to 1005 conditions per place. [2022-11-20 12:33:58,114 INFO L137 encePairwiseOnDemand]: 465/467 looper letters, 25 selfloop transitions, 1 changer transitions 0/339 dead transitions. [2022-11-20 12:33:58,114 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 339 transitions, 759 flow [2022-11-20 12:33:58,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:33:58,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:33:58,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1092 transitions. [2022-11-20 12:33:58,118 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7794432548179872 [2022-11-20 12:33:58,119 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1092 transitions. [2022-11-20 12:33:58,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1092 transitions. [2022-11-20 12:33:58,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:58,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1092 transitions. [2022-11-20 12:33:58,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.0) internal successors, (1092), 3 states have internal predecessors, (1092), 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 12:33:58,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:58,128 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:58,128 INFO L175 Difference]: Start difference. First operand has 341 places, 340 transitions, 709 flow. Second operand 3 states and 1092 transitions. [2022-11-20 12:33:58,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 339 transitions, 759 flow [2022-11-20 12:33:58,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 339 transitions, 739 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 12:33:58,137 INFO L231 Difference]: Finished difference. Result has 337 places, 339 transitions, 689 flow [2022-11-20 12:33:58,138 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=687, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=689, PETRI_PLACES=337, PETRI_TRANSITIONS=339} [2022-11-20 12:33:58,140 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -95 predicate places. [2022-11-20 12:33:58,140 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 339 transitions, 689 flow [2022-11-20 12:33:58,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 12:33:58,141 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:58,141 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:58,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:33:58,142 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:33:58,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:58,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1261754011, now seen corresponding path program 1 times [2022-11-20 12:33:58,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:58,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580089063] [2022-11-20 12:33:58,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:58,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:58,236 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 12:33:58,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:58,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580089063] [2022-11-20 12:33:58,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580089063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:58,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:58,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:33:58,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621025850] [2022-11-20 12:33:58,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:58,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:33:58,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:58,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:33:58,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:33:58,241 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-20 12:33:58,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 339 transitions, 689 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 12:33:58,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:58,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-20 12:33:58,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:58,837 INFO L130 PetriNetUnfolder]: 748/1775 cut-off events. [2022-11-20 12:33:58,837 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-20 12:33:58,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2857 conditions, 1775 events. 748/1775 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9206 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2758. Up to 1007 conditions per place. [2022-11-20 12:33:58,850 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 25 selfloop transitions, 2 changer transitions 0/338 dead transitions. [2022-11-20 12:33:58,851 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 338 transitions, 741 flow [2022-11-20 12:33:58,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:33:58,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:33:58,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1093 transitions. [2022-11-20 12:33:58,855 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7801570306923626 [2022-11-20 12:33:58,855 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1093 transitions. [2022-11-20 12:33:58,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1093 transitions. [2022-11-20 12:33:58,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:58,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1093 transitions. [2022-11-20 12:33:58,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.3333333333333) internal successors, (1093), 3 states have internal predecessors, (1093), 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 12:33:58,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:58,863 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:58,863 INFO L175 Difference]: Start difference. First operand has 337 places, 339 transitions, 689 flow. Second operand 3 states and 1093 transitions. [2022-11-20 12:33:58,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 338 transitions, 741 flow [2022-11-20 12:33:58,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 338 transitions, 740 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:33:58,871 INFO L231 Difference]: Finished difference. Result has 337 places, 338 transitions, 690 flow [2022-11-20 12:33:58,872 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=690, PETRI_PLACES=337, PETRI_TRANSITIONS=338} [2022-11-20 12:33:58,873 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -95 predicate places. [2022-11-20 12:33:58,873 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 338 transitions, 690 flow [2022-11-20 12:33:58,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 12:33:58,874 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:58,874 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:58,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 12:33:58,874 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:33:58,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:58,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1692337048, now seen corresponding path program 1 times [2022-11-20 12:33:58,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:58,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472278219] [2022-11-20 12:33:58,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:58,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:58,958 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 12:33:58,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:58,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472278219] [2022-11-20 12:33:58,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472278219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:58,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:58,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:33:58,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916410493] [2022-11-20 12:33:58,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:58,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:33:58,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:58,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:33:58,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:33:58,964 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-20 12:33:58,966 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 338 transitions, 690 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 12:33:58,967 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:58,967 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-20 12:33:58,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:33:59,790 INFO L130 PetriNetUnfolder]: 748/1773 cut-off events. [2022-11-20 12:33:59,791 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-20 12:33:59,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2858 conditions, 1773 events. 748/1773 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9196 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2758. Up to 1007 conditions per place. [2022-11-20 12:33:59,806 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 27 selfloop transitions, 1 changer transitions 0/336 dead transitions. [2022-11-20 12:33:59,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 336 transitions, 742 flow [2022-11-20 12:33:59,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:33:59,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:33:59,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1086 transitions. [2022-11-20 12:33:59,810 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7751605995717344 [2022-11-20 12:33:59,811 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1086 transitions. [2022-11-20 12:33:59,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1086 transitions. [2022-11-20 12:33:59,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:33:59,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1086 transitions. [2022-11-20 12:33:59,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.0) internal successors, (1086), 3 states have internal predecessors, (1086), 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 12:33:59,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:59,819 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:33:59,819 INFO L175 Difference]: Start difference. First operand has 337 places, 338 transitions, 690 flow. Second operand 3 states and 1086 transitions. [2022-11-20 12:33:59,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 336 transitions, 742 flow [2022-11-20 12:33:59,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 336 transitions, 738 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:33:59,827 INFO L231 Difference]: Finished difference. Result has 335 places, 336 transitions, 684 flow [2022-11-20 12:33:59,828 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=684, PETRI_PLACES=335, PETRI_TRANSITIONS=336} [2022-11-20 12:33:59,830 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -97 predicate places. [2022-11-20 12:33:59,830 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 336 transitions, 684 flow [2022-11-20 12:33:59,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 12:33:59,831 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:33:59,831 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:33:59,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 12:33:59,832 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:33:59,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:59,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1957197630, now seen corresponding path program 1 times [2022-11-20 12:33:59,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:59,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826361746] [2022-11-20 12:33:59,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:59,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:59,919 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 12:33:59,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:59,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826361746] [2022-11-20 12:33:59,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826361746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:59,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:59,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:33:59,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902810917] [2022-11-20 12:33:59,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:59,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:33:59,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:59,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:33:59,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:33:59,933 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-20 12:33:59,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 336 transitions, 684 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 12:33:59,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:33:59,936 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-20 12:33:59,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:34:00,548 INFO L130 PetriNetUnfolder]: 748/1772 cut-off events. [2022-11-20 12:34:00,549 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-20 12:34:00,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2854 conditions, 1772 events. 748/1772 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9183 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2754. Up to 1005 conditions per place. [2022-11-20 12:34:00,563 INFO L137 encePairwiseOnDemand]: 465/467 looper letters, 25 selfloop transitions, 1 changer transitions 0/335 dead transitions. [2022-11-20 12:34:00,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 335 transitions, 734 flow [2022-11-20 12:34:00,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:34:00,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:34:00,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1092 transitions. [2022-11-20 12:34:00,567 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7794432548179872 [2022-11-20 12:34:00,568 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1092 transitions. [2022-11-20 12:34:00,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1092 transitions. [2022-11-20 12:34:00,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:34:00,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1092 transitions. [2022-11-20 12:34:00,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.0) internal successors, (1092), 3 states have internal predecessors, (1092), 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 12:34:00,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:34:00,576 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:34:00,576 INFO L175 Difference]: Start difference. First operand has 335 places, 336 transitions, 684 flow. Second operand 3 states and 1092 transitions. [2022-11-20 12:34:00,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 335 transitions, 734 flow [2022-11-20 12:34:00,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 335 transitions, 733 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:34:00,583 INFO L231 Difference]: Finished difference. Result has 335 places, 335 transitions, 683 flow [2022-11-20 12:34:00,584 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=683, PETRI_PLACES=335, PETRI_TRANSITIONS=335} [2022-11-20 12:34:00,585 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -97 predicate places. [2022-11-20 12:34:00,585 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 335 transitions, 683 flow [2022-11-20 12:34:00,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 12:34:00,586 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:34:00,586 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:34:00,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 12:34:00,586 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:34:00,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:34:00,587 INFO L85 PathProgramCache]: Analyzing trace with hash 328818800, now seen corresponding path program 1 times [2022-11-20 12:34:00,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:34:00,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369486320] [2022-11-20 12:34:00,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:34:00,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:34:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:00,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:34:00,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:34:00,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369486320] [2022-11-20 12:34:00,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369486320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:34:00,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:34:00,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:34:00,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774043870] [2022-11-20 12:34:00,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:34:00,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:34:00,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:34:00,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:34:00,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:34:00,666 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-20 12:34:00,668 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 335 transitions, 683 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 12:34:00,668 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:34:00,668 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-20 12:34:00,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:34:01,286 INFO L130 PetriNetUnfolder]: 748/1770 cut-off events. [2022-11-20 12:34:01,286 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-20 12:34:01,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2855 conditions, 1770 events. 748/1770 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9180 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2755. Up to 1007 conditions per place. [2022-11-20 12:34:01,302 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 27 selfloop transitions, 1 changer transitions 0/333 dead transitions. [2022-11-20 12:34:01,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 333 transitions, 735 flow [2022-11-20 12:34:01,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:34:01,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:34:01,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1086 transitions. [2022-11-20 12:34:01,307 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7751605995717344 [2022-11-20 12:34:01,307 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1086 transitions. [2022-11-20 12:34:01,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1086 transitions. [2022-11-20 12:34:01,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:34:01,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1086 transitions. [2022-11-20 12:34:01,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.0) internal successors, (1086), 3 states have internal predecessors, (1086), 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 12:34:01,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:34:01,315 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:34:01,315 INFO L175 Difference]: Start difference. First operand has 335 places, 335 transitions, 683 flow. Second operand 3 states and 1086 transitions. [2022-11-20 12:34:01,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 333 transitions, 735 flow [2022-11-20 12:34:01,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 333 transitions, 734 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:34:01,323 INFO L231 Difference]: Finished difference. Result has 334 places, 333 transitions, 680 flow [2022-11-20 12:34:01,323 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=334, PETRI_TRANSITIONS=333} [2022-11-20 12:34:01,324 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -98 predicate places. [2022-11-20 12:34:01,324 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 333 transitions, 680 flow [2022-11-20 12:34:01,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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 12:34:01,325 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:34:01,325 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:34:01,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 12:34:01,326 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:34:01,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:34:01,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1704877812, now seen corresponding path program 1 times [2022-11-20 12:34:01,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:34:01,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678232269] [2022-11-20 12:34:01,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:34:01,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:34:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:01,410 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 12:34:01,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:34:01,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678232269] [2022-11-20 12:34:01,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678232269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:34:01,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:34:01,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:34:01,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947961261] [2022-11-20 12:34:01,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:34:01,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:34:01,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:34:01,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:34:01,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:34:01,415 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-20 12:34:01,417 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 333 transitions, 680 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 12:34:01,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:34:01,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-20 12:34:01,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:34:02,509 INFO L130 PetriNetUnfolder]: 1256/2921 cut-off events. [2022-11-20 12:34:02,509 INFO L131 PetriNetUnfolder]: For 83/269 co-relation queries the response was YES. [2022-11-20 12:34:02,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4748 conditions, 2921 events. 1256/2921 cut-off events. For 83/269 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 18016 event pairs, 792 based on Foata normal form. 0/2542 useless extension candidates. Maximal degree in co-relation 4648. Up to 1085 conditions per place. [2022-11-20 12:34:02,532 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 45 selfloop transitions, 2 changer transitions 0/353 dead transitions. [2022-11-20 12:34:02,533 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 353 transitions, 822 flow [2022-11-20 12:34:02,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:34:02,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:34:02,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1113 transitions. [2022-11-20 12:34:02,537 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7944325481798715 [2022-11-20 12:34:02,537 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1113 transitions. [2022-11-20 12:34:02,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1113 transitions. [2022-11-20 12:34:02,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:34:02,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1113 transitions. [2022-11-20 12:34:02,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 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 12:34:02,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:34:02,546 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:34:02,547 INFO L175 Difference]: Start difference. First operand has 334 places, 333 transitions, 680 flow. Second operand 3 states and 1113 transitions. [2022-11-20 12:34:02,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 353 transitions, 822 flow [2022-11-20 12:34:02,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 353 transitions, 821 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:34:02,554 INFO L231 Difference]: Finished difference. Result has 335 places, 333 transitions, 687 flow [2022-11-20 12:34:02,555 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=687, PETRI_PLACES=335, PETRI_TRANSITIONS=333} [2022-11-20 12:34:02,556 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -97 predicate places. [2022-11-20 12:34:02,556 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 333 transitions, 687 flow [2022-11-20 12:34:02,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 12:34:02,557 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:34:02,557 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:34:02,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 12:34:02,557 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:34:02,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:34:02,558 INFO L85 PathProgramCache]: Analyzing trace with hash 2008294076, now seen corresponding path program 1 times [2022-11-20 12:34:02,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:34:02,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676286985] [2022-11-20 12:34:02,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:34:02,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:34:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:02,629 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 12:34:02,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:34:02,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676286985] [2022-11-20 12:34:02,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676286985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:34:02,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:34:02,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:34:02,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345031894] [2022-11-20 12:34:02,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:34:02,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:34:02,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:34:02,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:34:02,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:34:02,643 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-20 12:34:02,644 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 333 transitions, 687 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 12:34:02,644 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:34:02,644 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-20 12:34:02,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:34:04,452 INFO L130 PetriNetUnfolder]: 2192/5181 cut-off events. [2022-11-20 12:34:04,452 INFO L131 PetriNetUnfolder]: For 414/738 co-relation queries the response was YES. [2022-11-20 12:34:04,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8819 conditions, 5181 events. 2192/5181 cut-off events. For 414/738 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 38616 event pairs, 1359 based on Foata normal form. 0/4460 useless extension candidates. Maximal degree in co-relation 8718. Up to 1803 conditions per place. [2022-11-20 12:34:04,498 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 47 selfloop transitions, 2 changer transitions 0/354 dead transitions. [2022-11-20 12:34:04,499 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 354 transitions, 840 flow [2022-11-20 12:34:04,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:34:04,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:34:04,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1113 transitions. [2022-11-20 12:34:04,503 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7944325481798715 [2022-11-20 12:34:04,504 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1113 transitions. [2022-11-20 12:34:04,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1113 transitions. [2022-11-20 12:34:04,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:34:04,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1113 transitions. [2022-11-20 12:34:04,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 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 12:34:04,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:34:04,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:34:04,514 INFO L175 Difference]: Start difference. First operand has 335 places, 333 transitions, 687 flow. Second operand 3 states and 1113 transitions. [2022-11-20 12:34:04,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 354 transitions, 840 flow [2022-11-20 12:34:04,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 354 transitions, 837 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:34:04,524 INFO L231 Difference]: Finished difference. Result has 336 places, 333 transitions, 693 flow [2022-11-20 12:34:04,525 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=693, PETRI_PLACES=336, PETRI_TRANSITIONS=333} [2022-11-20 12:34:04,526 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -96 predicate places. [2022-11-20 12:34:04,526 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 333 transitions, 693 flow [2022-11-20 12:34:04,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 12:34:04,527 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:34:04,527 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:34:04,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 12:34:04,528 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:34:04,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:34:04,528 INFO L85 PathProgramCache]: Analyzing trace with hash 2005100479, now seen corresponding path program 1 times [2022-11-20 12:34:04,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:34:04,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114364057] [2022-11-20 12:34:04,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:34:04,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:34:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:04,613 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 12:34:04,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:34:04,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114364057] [2022-11-20 12:34:04,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114364057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:34:04,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:34:04,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:34:04,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346918658] [2022-11-20 12:34:04,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:34:04,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:34:04,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:34:04,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:34:04,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:34:04,619 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-20 12:34:04,620 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 333 transitions, 693 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 12:34:04,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:34:04,621 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-20 12:34:04,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:34:07,201 INFO L130 PetriNetUnfolder]: 3256/8336 cut-off events. [2022-11-20 12:34:07,201 INFO L131 PetriNetUnfolder]: For 1049/1508 co-relation queries the response was YES. [2022-11-20 12:34:07,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14045 conditions, 8336 events. 3256/8336 cut-off events. For 1049/1508 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 72735 event pairs, 1461 based on Foata normal form. 0/7193 useless extension candidates. Maximal degree in co-relation 13943. Up to 2480 conditions per place. [2022-11-20 12:34:07,432 INFO L137 encePairwiseOnDemand]: 463/467 looper letters, 48 selfloop transitions, 4 changer transitions 0/356 dead transitions. [2022-11-20 12:34:07,432 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 356 transitions, 860 flow [2022-11-20 12:34:07,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:34:07,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:34:07,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1114 transitions. [2022-11-20 12:34:07,437 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.795146324054247 [2022-11-20 12:34:07,437 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1114 transitions. [2022-11-20 12:34:07,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1114 transitions. [2022-11-20 12:34:07,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:34:07,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1114 transitions. [2022-11-20 12:34:07,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 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 12:34:07,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:34:07,445 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:34:07,445 INFO L175 Difference]: Start difference. First operand has 336 places, 333 transitions, 693 flow. Second operand 3 states and 1114 transitions. [2022-11-20 12:34:07,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 356 transitions, 860 flow [2022-11-20 12:34:07,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 356 transitions, 857 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:34:07,456 INFO L231 Difference]: Finished difference. Result has 338 places, 335 transitions, 721 flow [2022-11-20 12:34:07,456 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=721, PETRI_PLACES=338, PETRI_TRANSITIONS=335} [2022-11-20 12:34:07,457 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -94 predicate places. [2022-11-20 12:34:07,457 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 335 transitions, 721 flow [2022-11-20 12:34:07,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 12:34:07,458 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:34:07,458 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:34:07,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 12:34:07,458 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:34:07,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:34:07,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1530354351, now seen corresponding path program 1 times [2022-11-20 12:34:07,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:34:07,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916349342] [2022-11-20 12:34:07,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:34:07,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:34:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:07,530 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 12:34:07,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:34:07,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916349342] [2022-11-20 12:34:07,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916349342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:34:07,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:34:07,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:34:07,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674137844] [2022-11-20 12:34:07,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:34:07,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:34:07,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:34:07,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:34:07,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:34:07,534 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-20 12:34:07,536 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 335 transitions, 721 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 12:34:07,536 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:34:07,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-20 12:34:07,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:34:10,484 INFO L130 PetriNetUnfolder]: 4475/10993 cut-off events. [2022-11-20 12:34:10,485 INFO L131 PetriNetUnfolder]: For 4552/5361 co-relation queries the response was YES. [2022-11-20 12:34:10,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20163 conditions, 10993 events. 4475/10993 cut-off events. For 4552/5361 co-relation queries the response was YES. Maximal size of possible extension queue 512. Compared 99941 event pairs, 1933 based on Foata normal form. 0/9488 useless extension candidates. Maximal degree in co-relation 20060. Up to 3689 conditions per place. [2022-11-20 12:34:10,573 INFO L137 encePairwiseOnDemand]: 463/467 looper letters, 54 selfloop transitions, 4 changer transitions 0/361 dead transitions. [2022-11-20 12:34:10,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 361 transitions, 927 flow [2022-11-20 12:34:10,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:34:10,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:34:10,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1114 transitions. [2022-11-20 12:34:10,578 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.795146324054247 [2022-11-20 12:34:10,578 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1114 transitions. [2022-11-20 12:34:10,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1114 transitions. [2022-11-20 12:34:10,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:34:10,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1114 transitions. [2022-11-20 12:34:10,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 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 12:34:10,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:34:10,586 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 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 12:34:10,586 INFO L175 Difference]: Start difference. First operand has 338 places, 335 transitions, 721 flow. Second operand 3 states and 1114 transitions. [2022-11-20 12:34:10,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 361 transitions, 927 flow [2022-11-20 12:34:10,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 361 transitions, 913 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:34:10,597 INFO L231 Difference]: Finished difference. Result has 339 places, 337 transitions, 743 flow [2022-11-20 12:34:10,598 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=711, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=743, PETRI_PLACES=339, PETRI_TRANSITIONS=337} [2022-11-20 12:34:10,598 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -93 predicate places. [2022-11-20 12:34:10,599 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 337 transitions, 743 flow [2022-11-20 12:34:10,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 12:34:10,599 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:34:10,600 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:34:10,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 12:34:10,600 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:34:10,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:34:10,601 INFO L85 PathProgramCache]: Analyzing trace with hash -545594348, now seen corresponding path program 1 times [2022-11-20 12:34:10,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:34:10,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716736346] [2022-11-20 12:34:10,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:34:10,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:34:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:11,514 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 12:34:11,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:34:11,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716736346] [2022-11-20 12:34:11,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716736346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:34:11,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:34:11,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:34:11,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54844213] [2022-11-20 12:34:11,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:34:11,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:34:11,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:34:11,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:34:11,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:34:11,520 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 467 [2022-11-20 12:34:11,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 337 transitions, 743 flow. Second operand has 6 states, 6 states have (on average 321.1666666666667) internal successors, (1927), 6 states have internal predecessors, (1927), 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 12:34:11,522 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:34:11,522 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 467 [2022-11-20 12:34:11,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:34:26,800 INFO L130 PetriNetUnfolder]: 30545/45921 cut-off events. [2022-11-20 12:34:26,800 INFO L131 PetriNetUnfolder]: For 35512/35512 co-relation queries the response was YES. [2022-11-20 12:34:26,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108650 conditions, 45921 events. 30545/45921 cut-off events. For 35512/35512 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 306893 event pairs, 4256 based on Foata normal form. 0/44006 useless extension candidates. Maximal degree in co-relation 108546. Up to 17939 conditions per place. [2022-11-20 12:34:27,160 INFO L137 encePairwiseOnDemand]: 462/467 looper letters, 151 selfloop transitions, 4 changer transitions 0/424 dead transitions. [2022-11-20 12:34:27,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 424 transitions, 1411 flow [2022-11-20 12:34:27,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:34:27,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:34:27,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2030 transitions. [2022-11-20 12:34:27,167 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7244825124910778 [2022-11-20 12:34:27,167 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2030 transitions. [2022-11-20 12:34:27,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2030 transitions. [2022-11-20 12:34:27,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:34:27,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2030 transitions. [2022-11-20 12:34:27,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 338.3333333333333) internal successors, (2030), 6 states have internal predecessors, (2030), 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 12:34:27,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 467.0) internal successors, (3269), 7 states have internal predecessors, (3269), 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 12:34:27,181 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 467.0) internal successors, (3269), 7 states have internal predecessors, (3269), 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 12:34:27,182 INFO L175 Difference]: Start difference. First operand has 339 places, 337 transitions, 743 flow. Second operand 6 states and 2030 transitions. [2022-11-20 12:34:27,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 424 transitions, 1411 flow [2022-11-20 12:34:27,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 424 transitions, 1379 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:34:27,223 INFO L231 Difference]: Finished difference. Result has 341 places, 336 transitions, 741 flow [2022-11-20 12:34:27,223 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=741, PETRI_PLACES=341, PETRI_TRANSITIONS=336} [2022-11-20 12:34:27,224 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -91 predicate places. [2022-11-20 12:34:27,224 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 336 transitions, 741 flow [2022-11-20 12:34:27,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 321.1666666666667) internal successors, (1927), 6 states have internal predecessors, (1927), 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 12:34:27,225 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:34:27,226 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:34:27,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 12:34:27,226 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-20 12:34:27,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:34:27,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1941038948, now seen corresponding path program 1 times [2022-11-20 12:34:27,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:34:27,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102261795] [2022-11-20 12:34:27,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:34:27,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:34:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:28,166 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 12:34:28,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:34:28,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102261795] [2022-11-20 12:34:28,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102261795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:34:28,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:34:28,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:34:28,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872023288] [2022-11-20 12:34:28,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:34:28,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:34:28,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:34:28,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:34:28,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:34:28,171 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 467 [2022-11-20 12:34:28,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 336 transitions, 741 flow. Second operand has 6 states, 6 states have (on average 322.3333333333333) internal successors, (1934), 6 states have internal predecessors, (1934), 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 12:34:28,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:34:28,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 467 [2022-11-20 12:34:28,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand