./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e5cf7f-c0d6-4f8f-820a-5544c542f4f1/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e5cf7f-c0d6-4f8f-820a-5544c542f4f1/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e5cf7f-c0d6-4f8f-820a-5544c542f4f1/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e5cf7f-c0d6-4f8f-820a-5544c542f4f1/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e5cf7f-c0d6-4f8f-820a-5544c542f4f1/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e5cf7f-c0d6-4f8f-820a-5544c542f4f1/bin/uautomizer-vX5HgA9Q3a --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 4ca4c99e545bc332635ee8b9969d24118d6fd539f8535aa6ae4c72d296ec330e --- 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-b5237d8 [2022-11-21 16:16:35,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:16:35,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:16:35,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:16:35,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:16:35,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:16:35,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:16:35,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:16:35,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:16:35,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:16:35,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:16:35,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:16:35,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:16:35,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:16:35,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:16:35,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:16:35,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:16:35,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:16:35,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:16:35,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:16:35,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:16:35,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:16:35,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:16:35,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:16:35,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:16:35,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:16:35,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:16:35,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:16:35,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:16:35,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:16:35,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:16:35,796 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:16:35,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:16:35,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:16:35,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:16:35,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:16:35,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:16:35,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:16:35,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:16:35,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:16:35,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:16:35,804 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e5cf7f-c0d6-4f8f-820a-5544c542f4f1/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 16:16:35,842 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:16:35,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:16:35,843 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:16:35,843 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:16:35,844 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:16:35,844 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:16:35,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:16:35,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:16:35,845 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:16:35,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:16:35,845 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:16:35,845 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:16:35,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:16:35,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:16:35,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:16:35,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:16:35,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:16:35,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:16:35,850 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 16:16:35,850 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:16:35,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:16:35,850 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:16:35,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:16:35,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:16:35,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:16:35,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:16:35,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:16:35,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:16:35,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:16:35,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:16:35,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:16:35,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:16:35,854 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:16:35,854 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:16:35,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:16:35,854 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_c1e5cf7f-c0d6-4f8f-820a-5544c542f4f1/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e5cf7f-c0d6-4f8f-820a-5544c542f4f1/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ca4c99e545bc332635ee8b9969d24118d6fd539f8535aa6ae4c72d296ec330e [2022-11-21 16:16:36,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:16:36,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:16:36,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:16:36,145 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:16:36,145 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:16:36,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e5cf7f-c0d6-4f8f-820a-5544c542f4f1/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2022-11-21 16:16:39,251 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:16:39,519 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:16:39,520 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e5cf7f-c0d6-4f8f-820a-5544c542f4f1/sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2022-11-21 16:16:39,528 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e5cf7f-c0d6-4f8f-820a-5544c542f4f1/bin/uautomizer-vX5HgA9Q3a/data/4afc0ba6c/e16fd07b1d6949e09ce0eb6ecf70b5ed/FLAG2926185d5 [2022-11-21 16:16:39,544 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e5cf7f-c0d6-4f8f-820a-5544c542f4f1/bin/uautomizer-vX5HgA9Q3a/data/4afc0ba6c/e16fd07b1d6949e09ce0eb6ecf70b5ed [2022-11-21 16:16:39,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:16:39,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:16:39,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:16:39,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:16:39,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:16:39,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:16:39" (1/1) ... [2022-11-21 16:16:39,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f63aaf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:16:39, skipping insertion in model container [2022-11-21 16:16:39,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:16:39" (1/1) ... [2022-11-21 16:16:39,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:16:39,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:16:39,824 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_c1e5cf7f-c0d6-4f8f-820a-5544c542f4f1/sv-benchmarks/c/weaver/chl-word-symm.wvr.c[2848,2861] [2022-11-21 16:16:39,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:16:39,839 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:16:39,893 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_c1e5cf7f-c0d6-4f8f-820a-5544c542f4f1/sv-benchmarks/c/weaver/chl-word-symm.wvr.c[2848,2861] [2022-11-21 16:16:39,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:16:39,917 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:16:39,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:16:39 WrapperNode [2022-11-21 16:16:39,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:16:39,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:16:39,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:16:39,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:16:39,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:16:39" (1/1) ... [2022-11-21 16:16:39,941 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:16:39" (1/1) ... [2022-11-21 16:16:39,996 INFO L138 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 204 [2022-11-21 16:16:39,996 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:16:39,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:16:39,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:16:39,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:16:40,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:16:39" (1/1) ... [2022-11-21 16:16:40,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:16:39" (1/1) ... [2022-11-21 16:16:40,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:16:39" (1/1) ... [2022-11-21 16:16:40,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:16:39" (1/1) ... [2022-11-21 16:16:40,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:16:39" (1/1) ... [2022-11-21 16:16:40,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:16:39" (1/1) ... [2022-11-21 16:16:40,084 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:16:39" (1/1) ... [2022-11-21 16:16:40,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:16:39" (1/1) ... [2022-11-21 16:16:40,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:16:40,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:16:40,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:16:40,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:16:40,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:16:39" (1/1) ... [2022-11-21 16:16:40,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:16:40,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e5cf7f-c0d6-4f8f-820a-5544c542f4f1/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:16:40,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e5cf7f-c0d6-4f8f-820a-5544c542f4f1/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:16:40,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e5cf7f-c0d6-4f8f-820a-5544c542f4f1/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:16:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:16:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-21 16:16:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-21 16:16:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-21 16:16:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-21 16:16:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:16:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:16:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:16:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:16:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:16:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:16:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:16:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:16:40,188 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:16:40,408 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:16:40,411 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:16:41,334 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:16:41,354 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:16:41,354 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-21 16:16:41,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:16:41 BoogieIcfgContainer [2022-11-21 16:16:41,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:16:41,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:16:41,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:16:41,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:16:41,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:16:39" (1/3) ... [2022-11-21 16:16:41,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e067ab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:16:41, skipping insertion in model container [2022-11-21 16:16:41,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:16:39" (2/3) ... [2022-11-21 16:16:41,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e067ab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:16:41, skipping insertion in model container [2022-11-21 16:16:41,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:16:41" (3/3) ... [2022-11-21 16:16:41,373 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-symm.wvr.c [2022-11-21 16:16:41,381 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:16:41,390 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:16:41,390 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2022-11-21 16:16:41,390 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:16:41,567 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-21 16:16:41,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 465 places, 484 transitions, 984 flow [2022-11-21 16:16:41,891 INFO L130 PetriNetUnfolder]: 26/482 cut-off events. [2022-11-21 16:16:41,891 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 16:16:41,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 482 events. 26/482 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1060 event pairs, 0 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 286. Up to 3 conditions per place. [2022-11-21 16:16:41,905 INFO L82 GeneralOperation]: Start removeDead. Operand has 465 places, 484 transitions, 984 flow [2022-11-21 16:16:41,923 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 444 places, 461 transitions, 934 flow [2022-11-21 16:16:41,939 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:16:41,947 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;@2cca7186, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:16:41,948 INFO L358 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2022-11-21 16:16:41,953 INFO L130 PetriNetUnfolder]: 0/26 cut-off events. [2022-11-21 16:16:41,953 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:16:41,953 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:41,954 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] [2022-11-21 16:16:41,955 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:16:41,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:41,960 INFO L85 PathProgramCache]: Analyzing trace with hash -646552277, now seen corresponding path program 1 times [2022-11-21 16:16:41,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:41,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420784846] [2022-11-21 16:16:41,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:41,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:42,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:16:42,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:42,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420784846] [2022-11-21 16:16:42,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420784846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:42,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:42,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:16:42,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309025908] [2022-11-21 16:16:42,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:42,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:16:42,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:42,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:16:42,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:16:42,206 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 484 [2022-11-21 16:16:42,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 461 transitions, 934 flow. Second operand has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:42,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:42,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 484 [2022-11-21 16:16:42,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:16:42,607 INFO L130 PetriNetUnfolder]: 107/1460 cut-off events. [2022-11-21 16:16:42,607 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-11-21 16:16:42,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1605 conditions, 1460 events. 107/1460 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 9467 event pairs, 48 based on Foata normal form. 22/1175 useless extension candidates. Maximal degree in co-relation 1237. Up to 116 conditions per place. [2022-11-21 16:16:42,627 INFO L137 encePairwiseOnDemand]: 471/484 looper letters, 19 selfloop transitions, 2 changer transitions 6/450 dead transitions. [2022-11-21 16:16:42,627 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 450 transitions, 954 flow [2022-11-21 16:16:42,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:16:42,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:16:42,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1382 transitions. [2022-11-21 16:16:42,686 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9517906336088154 [2022-11-21 16:16:42,687 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1382 transitions. [2022-11-21 16:16:42,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1382 transitions. [2022-11-21 16:16:42,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:16:42,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1382 transitions. [2022-11-21 16:16:42,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 460.6666666666667) internal successors, (1382), 3 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:42,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:42,713 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:42,715 INFO L175 Difference]: Start difference. First operand has 444 places, 461 transitions, 934 flow. Second operand 3 states and 1382 transitions. [2022-11-21 16:16:42,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 450 transitions, 954 flow [2022-11-21 16:16:42,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 450 transitions, 946 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:16:42,736 INFO L231 Difference]: Finished difference. Result has 441 places, 444 transitions, 896 flow [2022-11-21 16:16:42,739 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=896, PETRI_PLACES=441, PETRI_TRANSITIONS=444} [2022-11-21 16:16:42,744 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -3 predicate places. [2022-11-21 16:16:42,744 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 444 transitions, 896 flow [2022-11-21 16:16:42,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:42,746 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:42,746 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:16:42,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:16:42,747 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:16:42,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:42,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1801996933, now seen corresponding path program 1 times [2022-11-21 16:16:42,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:42,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794965709] [2022-11-21 16:16:42,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:42,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:42,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:16:42,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:42,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794965709] [2022-11-21 16:16:42,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794965709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:42,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:42,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:16:42,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535359172] [2022-11-21 16:16:42,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:42,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:16:42,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:42,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:16:42,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:16:42,842 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 484 [2022-11-21 16:16:42,844 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 444 transitions, 896 flow. Second operand has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:42,844 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:42,845 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 484 [2022-11-21 16:16:42,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:16:43,242 INFO L130 PetriNetUnfolder]: 102/1313 cut-off events. [2022-11-21 16:16:43,243 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-21 16:16:43,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1448 conditions, 1313 events. 102/1313 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 8118 event pairs, 48 based on Foata normal form. 0/1044 useless extension candidates. Maximal degree in co-relation 1413. Up to 121 conditions per place. [2022-11-21 16:16:43,257 INFO L137 encePairwiseOnDemand]: 481/484 looper letters, 19 selfloop transitions, 2 changer transitions 0/443 dead transitions. [2022-11-21 16:16:43,257 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 443 transitions, 936 flow [2022-11-21 16:16:43,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:16:43,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:16:43,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1372 transitions. [2022-11-21 16:16:43,262 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9449035812672176 [2022-11-21 16:16:43,263 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1372 transitions. [2022-11-21 16:16:43,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1372 transitions. [2022-11-21 16:16:43,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:16:43,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1372 transitions. [2022-11-21 16:16:43,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 457.3333333333333) internal successors, (1372), 3 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:43,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:43,275 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:43,275 INFO L175 Difference]: Start difference. First operand has 441 places, 444 transitions, 896 flow. Second operand 3 states and 1372 transitions. [2022-11-21 16:16:43,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 443 transitions, 936 flow [2022-11-21 16:16:43,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 443 transitions, 932 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:16:43,286 INFO L231 Difference]: Finished difference. Result has 434 places, 443 transitions, 894 flow [2022-11-21 16:16:43,287 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=894, PETRI_PLACES=434, PETRI_TRANSITIONS=443} [2022-11-21 16:16:43,288 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -10 predicate places. [2022-11-21 16:16:43,288 INFO L495 AbstractCegarLoop]: Abstraction has has 434 places, 443 transitions, 894 flow [2022-11-21 16:16:43,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:43,290 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:43,290 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] [2022-11-21 16:16:43,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:16:43,291 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:16:43,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:43,291 INFO L85 PathProgramCache]: Analyzing trace with hash 314167098, now seen corresponding path program 1 times [2022-11-21 16:16:43,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:43,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472352412] [2022-11-21 16:16:43,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:43,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:43,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:16:43,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:43,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472352412] [2022-11-21 16:16:43,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472352412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:43,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:43,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:16:43,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795622703] [2022-11-21 16:16:43,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:43,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:16:43,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:43,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:16:43,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:16:43,400 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 484 [2022-11-21 16:16:43,402 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 443 transitions, 894 flow. Second operand has 3 states, 3 states have (on average 448.3333333333333) internal successors, (1345), 3 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:43,402 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:43,402 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 484 [2022-11-21 16:16:43,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:16:43,745 INFO L130 PetriNetUnfolder]: 114/1425 cut-off events. [2022-11-21 16:16:43,745 INFO L131 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2022-11-21 16:16:43,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1578 conditions, 1425 events. 114/1425 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 9032 event pairs, 48 based on Foata normal form. 0/1139 useless extension candidates. Maximal degree in co-relation 1536. Up to 139 conditions per place. [2022-11-21 16:16:43,761 INFO L137 encePairwiseOnDemand]: 481/484 looper letters, 22 selfloop transitions, 2 changer transitions 0/442 dead transitions. [2022-11-21 16:16:43,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 442 transitions, 940 flow [2022-11-21 16:16:43,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:16:43,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:16:43,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1366 transitions. [2022-11-21 16:16:43,766 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.940771349862259 [2022-11-21 16:16:43,767 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1366 transitions. [2022-11-21 16:16:43,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1366 transitions. [2022-11-21 16:16:43,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:16:43,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1366 transitions. [2022-11-21 16:16:43,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:43,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:43,776 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:43,776 INFO L175 Difference]: Start difference. First operand has 434 places, 443 transitions, 894 flow. Second operand 3 states and 1366 transitions. [2022-11-21 16:16:43,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 442 transitions, 940 flow [2022-11-21 16:16:43,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 442 transitions, 936 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:16:43,784 INFO L231 Difference]: Finished difference. Result has 433 places, 442 transitions, 892 flow [2022-11-21 16:16:43,785 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=892, PETRI_PLACES=433, PETRI_TRANSITIONS=442} [2022-11-21 16:16:43,787 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -11 predicate places. [2022-11-21 16:16:43,787 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 442 transitions, 892 flow [2022-11-21 16:16:43,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 448.3333333333333) internal successors, (1345), 3 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:43,788 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:43,789 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] [2022-11-21 16:16:43,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:16:43,789 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:16:43,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:43,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1976251258, now seen corresponding path program 1 times [2022-11-21 16:16:43,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:43,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994465743] [2022-11-21 16:16:43,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:43,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:43,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:16:43,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:43,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994465743] [2022-11-21 16:16:43,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994465743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:43,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:43,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:16:43,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504098025] [2022-11-21 16:16:43,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:43,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:16:43,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:43,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:16:43,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:16:43,855 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 484 [2022-11-21 16:16:43,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 442 transitions, 892 flow. Second operand has 3 states, 3 states have (on average 448.3333333333333) internal successors, (1345), 3 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:43,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:43,858 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 484 [2022-11-21 16:16:43,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:16:44,164 INFO L130 PetriNetUnfolder]: 116/1248 cut-off events. [2022-11-21 16:16:44,164 INFO L131 PetriNetUnfolder]: For 20/23 co-relation queries the response was YES. [2022-11-21 16:16:44,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1410 conditions, 1248 events. 116/1248 cut-off events. For 20/23 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 7559 event pairs, 48 based on Foata normal form. 0/997 useless extension candidates. Maximal degree in co-relation 1361. Up to 148 conditions per place. [2022-11-21 16:16:44,178 INFO L137 encePairwiseOnDemand]: 481/484 looper letters, 22 selfloop transitions, 2 changer transitions 0/441 dead transitions. [2022-11-21 16:16:44,178 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 441 transitions, 938 flow [2022-11-21 16:16:44,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:16:44,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:16:44,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1366 transitions. [2022-11-21 16:16:44,182 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.940771349862259 [2022-11-21 16:16:44,183 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1366 transitions. [2022-11-21 16:16:44,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1366 transitions. [2022-11-21 16:16:44,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:16:44,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1366 transitions. [2022-11-21 16:16:44,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:44,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:44,195 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:44,195 INFO L175 Difference]: Start difference. First operand has 433 places, 442 transitions, 892 flow. Second operand 3 states and 1366 transitions. [2022-11-21 16:16:44,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 441 transitions, 938 flow [2022-11-21 16:16:44,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 441 transitions, 934 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:16:44,209 INFO L231 Difference]: Finished difference. Result has 432 places, 441 transitions, 890 flow [2022-11-21 16:16:44,210 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=890, PETRI_PLACES=432, PETRI_TRANSITIONS=441} [2022-11-21 16:16:44,211 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -12 predicate places. [2022-11-21 16:16:44,216 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 441 transitions, 890 flow [2022-11-21 16:16:44,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 448.3333333333333) internal successors, (1345), 3 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:44,220 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:44,220 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] [2022-11-21 16:16:44,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:16:44,220 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:16:44,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:44,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1872948338, now seen corresponding path program 1 times [2022-11-21 16:16:44,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:44,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442194958] [2022-11-21 16:16:44,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:44,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:44,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:16:44,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:44,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442194958] [2022-11-21 16:16:44,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442194958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:44,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:44,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:16:44,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839799562] [2022-11-21 16:16:44,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:44,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:16:44,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:44,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:16:44,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:16:44,278 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 484 [2022-11-21 16:16:44,280 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 441 transitions, 890 flow. Second operand has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:44,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:44,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 484 [2022-11-21 16:16:44,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:16:44,563 INFO L130 PetriNetUnfolder]: 78/1201 cut-off events. [2022-11-21 16:16:44,564 INFO L131 PetriNetUnfolder]: For 7/8 co-relation queries the response was YES. [2022-11-21 16:16:44,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1290 conditions, 1201 events. 78/1201 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6922 event pairs, 24 based on Foata normal form. 0/991 useless extension candidates. Maximal degree in co-relation 1233. Up to 76 conditions per place. [2022-11-21 16:16:44,581 INFO L137 encePairwiseOnDemand]: 478/484 looper letters, 15 selfloop transitions, 1 changer transitions 0/436 dead transitions. [2022-11-21 16:16:44,581 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 436 transitions, 912 flow [2022-11-21 16:16:44,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:16:44,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:16:44,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1371 transitions. [2022-11-21 16:16:44,585 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9442148760330579 [2022-11-21 16:16:44,585 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1371 transitions. [2022-11-21 16:16:44,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1371 transitions. [2022-11-21 16:16:44,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:16:44,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1371 transitions. [2022-11-21 16:16:44,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 457.0) internal successors, (1371), 3 states have internal predecessors, (1371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:44,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:44,594 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:44,594 INFO L175 Difference]: Start difference. First operand has 432 places, 441 transitions, 890 flow. Second operand 3 states and 1371 transitions. [2022-11-21 16:16:44,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 436 transitions, 912 flow [2022-11-21 16:16:44,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 436 transitions, 908 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:16:44,602 INFO L231 Difference]: Finished difference. Result has 427 places, 436 transitions, 878 flow [2022-11-21 16:16:44,603 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=878, PETRI_PLACES=427, PETRI_TRANSITIONS=436} [2022-11-21 16:16:44,604 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -17 predicate places. [2022-11-21 16:16:44,605 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 436 transitions, 878 flow [2022-11-21 16:16:44,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:44,606 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:44,607 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] [2022-11-21 16:16:44,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:16:44,607 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:16:44,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:44,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1911957839, now seen corresponding path program 1 times [2022-11-21 16:16:44,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:44,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051828942] [2022-11-21 16:16:44,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:44,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:44,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:16:44,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:44,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051828942] [2022-11-21 16:16:44,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051828942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:44,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:44,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:16:44,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151949197] [2022-11-21 16:16:44,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:44,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:16:44,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:44,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:16:44,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:16:44,679 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 484 [2022-11-21 16:16:44,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 436 transitions, 878 flow. Second operand has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:44,681 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:44,681 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 484 [2022-11-21 16:16:44,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:16:45,001 INFO L130 PetriNetUnfolder]: 116/1341 cut-off events. [2022-11-21 16:16:45,002 INFO L131 PetriNetUnfolder]: For 21/22 co-relation queries the response was YES. [2022-11-21 16:16:45,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1496 conditions, 1341 events. 116/1341 cut-off events. For 21/22 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 7681 event pairs, 48 based on Foata normal form. 0/1093 useless extension candidates. Maximal degree in co-relation 1440. Up to 142 conditions per place. [2022-11-21 16:16:45,015 INFO L137 encePairwiseOnDemand]: 481/484 looper letters, 19 selfloop transitions, 2 changer transitions 0/435 dead transitions. [2022-11-21 16:16:45,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 435 transitions, 918 flow [2022-11-21 16:16:45,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:16:45,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:16:45,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1372 transitions. [2022-11-21 16:16:45,019 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9449035812672176 [2022-11-21 16:16:45,020 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1372 transitions. [2022-11-21 16:16:45,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1372 transitions. [2022-11-21 16:16:45,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:16:45,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1372 transitions. [2022-11-21 16:16:45,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 457.3333333333333) internal successors, (1372), 3 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:45,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:45,030 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:45,030 INFO L175 Difference]: Start difference. First operand has 427 places, 436 transitions, 878 flow. Second operand 3 states and 1372 transitions. [2022-11-21 16:16:45,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 435 transitions, 918 flow [2022-11-21 16:16:45,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 435 transitions, 917 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:16:45,041 INFO L231 Difference]: Finished difference. Result has 427 places, 435 transitions, 879 flow [2022-11-21 16:16:45,041 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=875, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=879, PETRI_PLACES=427, PETRI_TRANSITIONS=435} [2022-11-21 16:16:45,042 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -17 predicate places. [2022-11-21 16:16:45,043 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 435 transitions, 879 flow [2022-11-21 16:16:45,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:45,044 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:45,044 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] [2022-11-21 16:16:45,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:16:45,044 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:16:45,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:45,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1163164829, now seen corresponding path program 1 times [2022-11-21 16:16:45,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:45,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692481661] [2022-11-21 16:16:45,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:45,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:45,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:16:45,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:45,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692481661] [2022-11-21 16:16:45,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692481661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:45,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:45,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:16:45,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269863870] [2022-11-21 16:16:45,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:45,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:16:45,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:45,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:16:45,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:16:45,702 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 484 [2022-11-21 16:16:45,705 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 435 transitions, 879 flow. Second operand has 6 states, 6 states have (on average 375.8333333333333) internal successors, (2255), 6 states have internal predecessors, (2255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:45,705 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:45,705 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 484 [2022-11-21 16:16:45,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:16:51,495 INFO L130 PetriNetUnfolder]: 9016/27095 cut-off events. [2022-11-21 16:16:51,495 INFO L131 PetriNetUnfolder]: For 68/79 co-relation queries the response was YES. [2022-11-21 16:16:51,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40102 conditions, 27095 events. 9016/27095 cut-off events. For 68/79 co-relation queries the response was YES. Maximal size of possible extension queue 681. Compared 296372 event pairs, 7968 based on Foata normal form. 0/22012 useless extension candidates. Maximal degree in co-relation 40047. Up to 12966 conditions per place. [2022-11-21 16:16:51,734 INFO L137 encePairwiseOnDemand]: 472/484 looper letters, 86 selfloop transitions, 10 changer transitions 0/433 dead transitions. [2022-11-21 16:16:51,734 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 433 transitions, 1067 flow [2022-11-21 16:16:51,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:16:51,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:16:51,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2342 transitions. [2022-11-21 16:16:51,741 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8064738292011019 [2022-11-21 16:16:51,741 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2342 transitions. [2022-11-21 16:16:51,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2342 transitions. [2022-11-21 16:16:51,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:16:51,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2342 transitions. [2022-11-21 16:16:51,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 390.3333333333333) internal successors, (2342), 6 states have internal predecessors, (2342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:51,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:51,758 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:51,758 INFO L175 Difference]: Start difference. First operand has 427 places, 435 transitions, 879 flow. Second operand 6 states and 2342 transitions. [2022-11-21 16:16:51,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 433 transitions, 1067 flow [2022-11-21 16:16:51,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 433 transitions, 1063 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:16:51,769 INFO L231 Difference]: Finished difference. Result has 428 places, 433 transitions, 891 flow [2022-11-21 16:16:51,770 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=871, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=891, PETRI_PLACES=428, PETRI_TRANSITIONS=433} [2022-11-21 16:16:51,770 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -16 predicate places. [2022-11-21 16:16:51,771 INFO L495 AbstractCegarLoop]: Abstraction has has 428 places, 433 transitions, 891 flow [2022-11-21 16:16:51,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 375.8333333333333) internal successors, (2255), 6 states have internal predecessors, (2255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:51,772 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:51,772 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] [2022-11-21 16:16:51,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:16:51,773 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:16:51,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:51,774 INFO L85 PathProgramCache]: Analyzing trace with hash -834315219, now seen corresponding path program 1 times [2022-11-21 16:16:51,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:51,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777848185] [2022-11-21 16:16:51,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:51,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:51,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:16:51,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:51,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777848185] [2022-11-21 16:16:51,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777848185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:51,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:51,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:16:51,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489421166] [2022-11-21 16:16:51,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:51,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:16:51,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:51,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:16:51,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:16:51,857 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 484 [2022-11-21 16:16:51,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 433 transitions, 891 flow. Second operand has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:51,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:51,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 484 [2022-11-21 16:16:51,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:16:52,137 INFO L130 PetriNetUnfolder]: 80/1064 cut-off events. [2022-11-21 16:16:52,137 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-21 16:16:52,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1168 conditions, 1064 events. 80/1064 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 5841 event pairs, 24 based on Foata normal form. 0/896 useless extension candidates. Maximal degree in co-relation 1135. Up to 82 conditions per place. [2022-11-21 16:16:52,153 INFO L137 encePairwiseOnDemand]: 478/484 looper letters, 15 selfloop transitions, 1 changer transitions 0/428 dead transitions. [2022-11-21 16:16:52,153 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 428 transitions, 913 flow [2022-11-21 16:16:52,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:16:52,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:16:52,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1371 transitions. [2022-11-21 16:16:52,157 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9442148760330579 [2022-11-21 16:16:52,157 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1371 transitions. [2022-11-21 16:16:52,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1371 transitions. [2022-11-21 16:16:52,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:16:52,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1371 transitions. [2022-11-21 16:16:52,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 457.0) internal successors, (1371), 3 states have internal predecessors, (1371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:52,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:52,176 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:52,176 INFO L175 Difference]: Start difference. First operand has 428 places, 433 transitions, 891 flow. Second operand 3 states and 1371 transitions. [2022-11-21 16:16:52,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 428 transitions, 913 flow [2022-11-21 16:16:52,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 428 transitions, 893 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:16:52,187 INFO L231 Difference]: Finished difference. Result has 420 places, 428 transitions, 863 flow [2022-11-21 16:16:52,187 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=861, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=863, PETRI_PLACES=420, PETRI_TRANSITIONS=428} [2022-11-21 16:16:52,190 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -24 predicate places. [2022-11-21 16:16:52,191 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 428 transitions, 863 flow [2022-11-21 16:16:52,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:52,191 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:52,192 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] [2022-11-21 16:16:52,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:16:52,192 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:16:52,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:52,193 INFO L85 PathProgramCache]: Analyzing trace with hash -691854815, now seen corresponding path program 1 times [2022-11-21 16:16:52,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:52,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394710357] [2022-11-21 16:16:52,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:52,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:52,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:16:52,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:52,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394710357] [2022-11-21 16:16:52,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394710357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:52,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:52,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:16:52,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442570633] [2022-11-21 16:16:52,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:52,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:16:52,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:52,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:16:52,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:16:52,332 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 484 [2022-11-21 16:16:52,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 428 transitions, 863 flow. Second operand has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:52,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:52,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 484 [2022-11-21 16:16:52,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:16:52,544 INFO L130 PetriNetUnfolder]: 108/1306 cut-off events. [2022-11-21 16:16:52,545 INFO L131 PetriNetUnfolder]: For 18/19 co-relation queries the response was YES. [2022-11-21 16:16:52,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1454 conditions, 1306 events. 108/1306 cut-off events. For 18/19 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 7566 event pairs, 48 based on Foata normal form. 0/1097 useless extension candidates. Maximal degree in co-relation 1398. Up to 134 conditions per place. [2022-11-21 16:16:52,558 INFO L137 encePairwiseOnDemand]: 481/484 looper letters, 19 selfloop transitions, 2 changer transitions 0/427 dead transitions. [2022-11-21 16:16:52,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 427 transitions, 903 flow [2022-11-21 16:16:52,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:16:52,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:16:52,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1372 transitions. [2022-11-21 16:16:52,562 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9449035812672176 [2022-11-21 16:16:52,563 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1372 transitions. [2022-11-21 16:16:52,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1372 transitions. [2022-11-21 16:16:52,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:16:52,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1372 transitions. [2022-11-21 16:16:52,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 457.3333333333333) internal successors, (1372), 3 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:52,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:52,570 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:52,570 INFO L175 Difference]: Start difference. First operand has 420 places, 428 transitions, 863 flow. Second operand 3 states and 1372 transitions. [2022-11-21 16:16:52,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 427 transitions, 903 flow [2022-11-21 16:16:52,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 427 transitions, 902 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:16:52,578 INFO L231 Difference]: Finished difference. Result has 420 places, 427 transitions, 864 flow [2022-11-21 16:16:52,579 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=860, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=864, PETRI_PLACES=420, PETRI_TRANSITIONS=427} [2022-11-21 16:16:52,580 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -24 predicate places. [2022-11-21 16:16:52,581 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 427 transitions, 864 flow [2022-11-21 16:16:52,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:52,581 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:52,582 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] [2022-11-21 16:16:52,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:16:52,582 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:16:52,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:52,583 INFO L85 PathProgramCache]: Analyzing trace with hash 99158977, now seen corresponding path program 1 times [2022-11-21 16:16:52,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:52,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758528751] [2022-11-21 16:16:52,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:52,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:52,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:16:52,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:52,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758528751] [2022-11-21 16:16:52,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758528751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:52,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:52,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:16:52,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087592758] [2022-11-21 16:16:52,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:52,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:16:52,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:52,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:16:52,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:16:52,650 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 484 [2022-11-21 16:16:52,652 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 427 transitions, 864 flow. Second operand has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:52,652 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:52,652 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 484 [2022-11-21 16:16:52,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:16:52,822 INFO L130 PetriNetUnfolder]: 73/1157 cut-off events. [2022-11-21 16:16:52,823 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-21 16:16:52,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1232 conditions, 1157 events. 73/1157 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6653 event pairs, 16 based on Foata normal form. 0/982 useless extension candidates. Maximal degree in co-relation 1175. Up to 58 conditions per place. [2022-11-21 16:16:52,834 INFO L137 encePairwiseOnDemand]: 478/484 looper letters, 15 selfloop transitions, 2 changer transitions 0/426 dead transitions. [2022-11-21 16:16:52,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 426 transitions, 897 flow [2022-11-21 16:16:52,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:16:52,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:16:52,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1380 transitions. [2022-11-21 16:16:52,838 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9504132231404959 [2022-11-21 16:16:52,838 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1380 transitions. [2022-11-21 16:16:52,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1380 transitions. [2022-11-21 16:16:52,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:16:52,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1380 transitions. [2022-11-21 16:16:52,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 460.0) internal successors, (1380), 3 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:52,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:52,847 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:52,847 INFO L175 Difference]: Start difference. First operand has 420 places, 427 transitions, 864 flow. Second operand 3 states and 1380 transitions. [2022-11-21 16:16:52,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 426 transitions, 897 flow [2022-11-21 16:16:52,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 426 transitions, 893 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:16:52,856 INFO L231 Difference]: Finished difference. Result has 417 places, 425 transitions, 866 flow [2022-11-21 16:16:52,857 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=866, PETRI_PLACES=417, PETRI_TRANSITIONS=425} [2022-11-21 16:16:52,858 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -27 predicate places. [2022-11-21 16:16:52,858 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 425 transitions, 866 flow [2022-11-21 16:16:52,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:52,859 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:52,860 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] [2022-11-21 16:16:52,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:16:52,860 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:16:52,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:52,860 INFO L85 PathProgramCache]: Analyzing trace with hash 802531843, now seen corresponding path program 1 times [2022-11-21 16:16:52,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:52,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549074132] [2022-11-21 16:16:52,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:52,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:52,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:16:52,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:52,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549074132] [2022-11-21 16:16:52,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549074132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:52,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:52,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:16:52,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475158391] [2022-11-21 16:16:52,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:52,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:16:52,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:52,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:16:52,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:16:52,929 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 484 [2022-11-21 16:16:52,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 425 transitions, 866 flow. Second operand has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:52,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:52,931 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 484 [2022-11-21 16:16:52,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:16:53,130 INFO L130 PetriNetUnfolder]: 74/1147 cut-off events. [2022-11-21 16:16:53,130 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-21 16:16:53,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1233 conditions, 1147 events. 74/1147 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6547 event pairs, 16 based on Foata normal form. 0/986 useless extension candidates. Maximal degree in co-relation 1176. Up to 60 conditions per place. [2022-11-21 16:16:53,141 INFO L137 encePairwiseOnDemand]: 478/484 looper letters, 15 selfloop transitions, 2 changer transitions 0/424 dead transitions. [2022-11-21 16:16:53,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 424 transitions, 899 flow [2022-11-21 16:16:53,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:16:53,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:16:53,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1380 transitions. [2022-11-21 16:16:53,147 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9504132231404959 [2022-11-21 16:16:53,148 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1380 transitions. [2022-11-21 16:16:53,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1380 transitions. [2022-11-21 16:16:53,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:16:53,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1380 transitions. [2022-11-21 16:16:53,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 460.0) internal successors, (1380), 3 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:53,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:53,156 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:53,157 INFO L175 Difference]: Start difference. First operand has 417 places, 425 transitions, 866 flow. Second operand 3 states and 1380 transitions. [2022-11-21 16:16:53,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 424 transitions, 899 flow [2022-11-21 16:16:53,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 424 transitions, 899 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:16:53,168 INFO L231 Difference]: Finished difference. Result has 416 places, 423 transitions, 872 flow [2022-11-21 16:16:53,168 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=872, PETRI_PLACES=416, PETRI_TRANSITIONS=423} [2022-11-21 16:16:53,169 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -28 predicate places. [2022-11-21 16:16:53,169 INFO L495 AbstractCegarLoop]: Abstraction has has 416 places, 423 transitions, 872 flow [2022-11-21 16:16:53,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:53,170 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:53,171 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] [2022-11-21 16:16:53,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:16:53,171 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:16:53,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:53,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1188736936, now seen corresponding path program 1 times [2022-11-21 16:16:53,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:53,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165832108] [2022-11-21 16:16:53,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:53,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:53,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:16:53,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:53,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165832108] [2022-11-21 16:16:53,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165832108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:53,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:53,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:16:53,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608073761] [2022-11-21 16:16:53,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:53,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:16:53,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:53,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:16:53,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:16:53,242 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 484 [2022-11-21 16:16:53,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 423 transitions, 872 flow. Second operand has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:53,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:53,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 484 [2022-11-21 16:16:53,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:16:53,459 INFO L130 PetriNetUnfolder]: 54/989 cut-off events. [2022-11-21 16:16:53,460 INFO L131 PetriNetUnfolder]: For 3/7 co-relation queries the response was YES. [2022-11-21 16:16:53,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1069 conditions, 989 events. 54/989 cut-off events. For 3/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4647 event pairs, 7 based on Foata normal form. 1/859 useless extension candidates. Maximal degree in co-relation 1013. Up to 39 conditions per place. [2022-11-21 16:16:53,469 INFO L137 encePairwiseOnDemand]: 481/484 looper letters, 22 selfloop transitions, 2 changer transitions 0/423 dead transitions. [2022-11-21 16:16:53,469 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 423 transitions, 921 flow [2022-11-21 16:16:53,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:16:53,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:16:53,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1369 transitions. [2022-11-21 16:16:53,473 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9428374655647382 [2022-11-21 16:16:53,473 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1369 transitions. [2022-11-21 16:16:53,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1369 transitions. [2022-11-21 16:16:53,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:16:53,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1369 transitions. [2022-11-21 16:16:53,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 456.3333333333333) internal successors, (1369), 3 states have internal predecessors, (1369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:53,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:53,480 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:53,481 INFO L175 Difference]: Start difference. First operand has 416 places, 423 transitions, 872 flow. Second operand 3 states and 1369 transitions. [2022-11-21 16:16:53,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 423 transitions, 921 flow [2022-11-21 16:16:53,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 423 transitions, 921 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:16:53,488 INFO L231 Difference]: Finished difference. Result has 417 places, 422 transitions, 874 flow [2022-11-21 16:16:53,489 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=874, PETRI_PLACES=417, PETRI_TRANSITIONS=422} [2022-11-21 16:16:53,491 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -27 predicate places. [2022-11-21 16:16:53,491 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 422 transitions, 874 flow [2022-11-21 16:16:53,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:53,492 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:53,492 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] [2022-11-21 16:16:53,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:16:53,492 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:16:53,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:53,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1694080077, now seen corresponding path program 1 times [2022-11-21 16:16:53,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:53,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370366380] [2022-11-21 16:16:53,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:53,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:54,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:16:54,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:54,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370366380] [2022-11-21 16:16:54,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370366380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:54,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:54,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:16:54,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798867632] [2022-11-21 16:16:54,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:54,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:16:54,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:54,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:16:54,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:16:54,019 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 484 [2022-11-21 16:16:54,022 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 422 transitions, 874 flow. Second operand has 6 states, 6 states have (on average 391.8333333333333) internal successors, (2351), 6 states have internal predecessors, (2351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:54,022 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:54,022 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 484 [2022-11-21 16:16:54,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:16:58,117 INFO L130 PetriNetUnfolder]: 8976/20089 cut-off events. [2022-11-21 16:16:58,117 INFO L131 PetriNetUnfolder]: For 31/398 co-relation queries the response was YES. [2022-11-21 16:16:58,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33727 conditions, 20089 events. 8976/20089 cut-off events. For 31/398 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 182663 event pairs, 2424 based on Foata normal form. 73/17342 useless extension candidates. Maximal degree in co-relation 33717. Up to 4337 conditions per place. [2022-11-21 16:16:58,302 INFO L137 encePairwiseOnDemand]: 479/484 looper letters, 265 selfloop transitions, 4 changer transitions 0/613 dead transitions. [2022-11-21 16:16:58,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 613 transitions, 1794 flow [2022-11-21 16:16:58,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:16:58,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:16:58,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2610 transitions. [2022-11-21 16:16:58,310 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8987603305785123 [2022-11-21 16:16:58,310 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2610 transitions. [2022-11-21 16:16:58,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2610 transitions. [2022-11-21 16:16:58,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:16:58,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2610 transitions. [2022-11-21 16:16:58,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 435.0) internal successors, (2610), 6 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:58,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:58,328 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:58,328 INFO L175 Difference]: Start difference. First operand has 417 places, 422 transitions, 874 flow. Second operand 6 states and 2610 transitions. [2022-11-21 16:16:58,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 613 transitions, 1794 flow [2022-11-21 16:16:58,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 613 transitions, 1790 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:16:58,342 INFO L231 Difference]: Finished difference. Result has 419 places, 421 transitions, 876 flow [2022-11-21 16:16:58,342 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=868, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=876, PETRI_PLACES=419, PETRI_TRANSITIONS=421} [2022-11-21 16:16:58,344 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -25 predicate places. [2022-11-21 16:16:58,344 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 421 transitions, 876 flow [2022-11-21 16:16:58,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 391.8333333333333) internal successors, (2351), 6 states have internal predecessors, (2351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:58,345 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:58,345 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] [2022-11-21 16:16:58,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:16:58,345 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:16:58,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:58,346 INFO L85 PathProgramCache]: Analyzing trace with hash 780827771, now seen corresponding path program 1 times [2022-11-21 16:16:58,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:58,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291837787] [2022-11-21 16:16:58,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:58,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:58,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:58,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:16:58,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:58,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291837787] [2022-11-21 16:16:58,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291837787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:58,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:58,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:16:58,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041409824] [2022-11-21 16:16:58,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:58,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:16:58,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:58,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:16:58,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:16:58,426 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 484 [2022-11-21 16:16:58,428 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 421 transitions, 876 flow. Second operand has 3 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:58,428 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:58,428 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 484 [2022-11-21 16:16:58,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:16:58,601 INFO L130 PetriNetUnfolder]: 43/824 cut-off events. [2022-11-21 16:16:58,601 INFO L131 PetriNetUnfolder]: For 2/9 co-relation queries the response was YES. [2022-11-21 16:16:58,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 895 conditions, 824 events. 43/824 cut-off events. For 2/9 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3837 event pairs, 6 based on Foata normal form. 1/721 useless extension candidates. Maximal degree in co-relation 838. Up to 24 conditions per place. [2022-11-21 16:16:58,609 INFO L137 encePairwiseOnDemand]: 480/484 looper letters, 11 selfloop transitions, 3 changer transitions 0/423 dead transitions. [2022-11-21 16:16:58,610 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 423 transitions, 909 flow [2022-11-21 16:16:58,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:16:58,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:16:58,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1395 transitions. [2022-11-21 16:16:58,614 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9607438016528925 [2022-11-21 16:16:58,614 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1395 transitions. [2022-11-21 16:16:58,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1395 transitions. [2022-11-21 16:16:58,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:16:58,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1395 transitions. [2022-11-21 16:16:58,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 465.0) internal successors, (1395), 3 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:58,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:58,624 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:58,624 INFO L175 Difference]: Start difference. First operand has 419 places, 421 transitions, 876 flow. Second operand 3 states and 1395 transitions. [2022-11-21 16:16:58,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 423 transitions, 909 flow [2022-11-21 16:16:58,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 423 transitions, 902 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:16:58,634 INFO L231 Difference]: Finished difference. Result has 419 places, 422 transitions, 887 flow [2022-11-21 16:16:58,634 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=887, PETRI_PLACES=419, PETRI_TRANSITIONS=422} [2022-11-21 16:16:58,636 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -25 predicate places. [2022-11-21 16:16:58,636 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 422 transitions, 887 flow [2022-11-21 16:16:58,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:58,637 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:58,637 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] [2022-11-21 16:16:58,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:16:58,638 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:16:58,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:58,638 INFO L85 PathProgramCache]: Analyzing trace with hash 816877009, now seen corresponding path program 1 times [2022-11-21 16:16:58,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:58,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176651502] [2022-11-21 16:16:58,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:58,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:58,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:16:58,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:58,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176651502] [2022-11-21 16:16:58,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176651502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:58,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:58,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:16:58,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7547469] [2022-11-21 16:16:58,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:58,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:16:58,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:58,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:16:58,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:16:58,715 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 484 [2022-11-21 16:16:58,717 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 422 transitions, 887 flow. Second operand has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:58,717 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:58,717 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 484 [2022-11-21 16:16:58,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:16:59,051 INFO L130 PetriNetUnfolder]: 100/1450 cut-off events. [2022-11-21 16:16:59,051 INFO L131 PetriNetUnfolder]: For 24/25 co-relation queries the response was YES. [2022-11-21 16:16:59,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1605 conditions, 1450 events. 100/1450 cut-off events. For 24/25 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 8603 event pairs, 12 based on Foata normal form. 0/1262 useless extension candidates. Maximal degree in co-relation 1547. Up to 89 conditions per place. [2022-11-21 16:16:59,067 INFO L137 encePairwiseOnDemand]: 478/484 looper letters, 17 selfloop transitions, 2 changer transitions 0/423 dead transitions. [2022-11-21 16:16:59,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 423 transitions, 930 flow [2022-11-21 16:16:59,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:16:59,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:16:59,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1382 transitions. [2022-11-21 16:16:59,142 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9517906336088154 [2022-11-21 16:16:59,142 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1382 transitions. [2022-11-21 16:16:59,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1382 transitions. [2022-11-21 16:16:59,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:16:59,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1382 transitions. [2022-11-21 16:16:59,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 460.6666666666667) internal successors, (1382), 3 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:59,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:59,151 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:59,151 INFO L175 Difference]: Start difference. First operand has 419 places, 422 transitions, 887 flow. Second operand 3 states and 1382 transitions. [2022-11-21 16:16:59,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 423 transitions, 930 flow [2022-11-21 16:16:59,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 423 transitions, 924 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:16:59,161 INFO L231 Difference]: Finished difference. Result has 416 places, 420 transitions, 887 flow [2022-11-21 16:16:59,162 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=887, PETRI_PLACES=416, PETRI_TRANSITIONS=420} [2022-11-21 16:16:59,162 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -28 predicate places. [2022-11-21 16:16:59,163 INFO L495 AbstractCegarLoop]: Abstraction has has 416 places, 420 transitions, 887 flow [2022-11-21 16:16:59,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:59,163 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:59,164 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] [2022-11-21 16:16:59,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:16:59,164 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:16:59,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:59,165 INFO L85 PathProgramCache]: Analyzing trace with hash -718606082, now seen corresponding path program 1 times [2022-11-21 16:16:59,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:59,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814940039] [2022-11-21 16:16:59,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:59,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:59,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:16:59,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:59,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814940039] [2022-11-21 16:16:59,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814940039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:59,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:59,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:16:59,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998668579] [2022-11-21 16:16:59,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:59,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:16:59,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:59,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:16:59,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:16:59,233 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 484 [2022-11-21 16:16:59,235 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 420 transitions, 887 flow. Second operand has 3 states, 3 states have (on average 449.6666666666667) internal successors, (1349), 3 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:59,235 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:59,236 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 484 [2022-11-21 16:16:59,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:16:59,452 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1301] thread2EXIT-->L100-7: Formula: (and (= v_thread2Thread1of1ForFork0_thidvar2_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem36#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread2Thread1of1ForFork0_thidvar0_4) (= v_thread2Thread1of1ForFork0_thidvar1_4 0)) InVars {thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem36#1=|v_ULTIMATE.start_main_#t~mem36#1_5|} OutVars{thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem36#1=|v_ULTIMATE.start_main_#t~mem36#1_5|} AuxVars[] AssignedVars[][321], [536#(= |#race~get1~0| 0), 526#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 501#(= |#race~n2~0| 0), 486#(= |#race~n1~0| 0), Black: 512#true, Black: 530#(not |thread1Thread1of1ForFork1_#t~short2|), 398#L100-7true, 509#(= |#race~count1~0| 0), Black: 534#true, 539#true, 514#(= |#race~count2~0| 0), Black: 507#true]) [2022-11-21 16:16:59,452 INFO L383 tUnfolder$Statistics]: this new event has 203 ancestors and is not cut-off event [2022-11-21 16:16:59,453 INFO L386 tUnfolder$Statistics]: existing Event has 234 ancestors and is not cut-off event [2022-11-21 16:16:59,453 INFO L386 tUnfolder$Statistics]: existing Event has 206 ancestors and is not cut-off event [2022-11-21 16:16:59,453 INFO L386 tUnfolder$Statistics]: existing Event has 207 ancestors and is not cut-off event [2022-11-21 16:16:59,463 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1238] L77-6-->L77-7: Formula: (= |v_thread2Thread1of1ForFork0_#t~nondet17_3| |v_#race~res2~0_7|) InVars {thread2Thread1of1ForFork0_#t~nondet17=|v_thread2Thread1of1ForFork0_#t~nondet17_3|} OutVars{thread2Thread1of1ForFork0_#t~nondet17=|v_thread2Thread1of1ForFork0_#t~nondet17_3|, #race~res2~0=|v_#race~res2~0_7|} AuxVars[] AssignedVars[#race~res2~0][274], [501#(= |#race~n2~0| 0), 486#(= |#race~n1~0| 0), Black: 512#true, 191#L99-7true, 514#(= |#race~count2~0| 0), 536#(= |#race~get1~0| 0), 526#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 530#(not |thread1Thread1of1ForFork1_#t~short2|), 509#(= |#race~count1~0| 0), 539#true, Black: 534#true, 176#L77-7true, Black: 507#true]) [2022-11-21 16:16:59,463 INFO L383 tUnfolder$Statistics]: this new event has 215 ancestors and is cut-off event [2022-11-21 16:16:59,463 INFO L386 tUnfolder$Statistics]: existing Event has 200 ancestors and is cut-off event [2022-11-21 16:16:59,463 INFO L386 tUnfolder$Statistics]: existing Event has 231 ancestors and is cut-off event [2022-11-21 16:16:59,464 INFO L386 tUnfolder$Statistics]: existing Event has 203 ancestors and is cut-off event [2022-11-21 16:16:59,468 INFO L130 PetriNetUnfolder]: 77/984 cut-off events. [2022-11-21 16:16:59,468 INFO L131 PetriNetUnfolder]: For 32/38 co-relation queries the response was YES. [2022-11-21 16:16:59,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1150 conditions, 984 events. 77/984 cut-off events. For 32/38 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5138 event pairs, 11 based on Foata normal form. 1/864 useless extension candidates. Maximal degree in co-relation 1092. Up to 103 conditions per place. [2022-11-21 16:16:59,481 INFO L137 encePairwiseOnDemand]: 481/484 looper letters, 21 selfloop transitions, 2 changer transitions 0/420 dead transitions. [2022-11-21 16:16:59,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 420 transitions, 934 flow [2022-11-21 16:16:59,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:16:59,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:16:59,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1368 transitions. [2022-11-21 16:16:59,485 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9421487603305785 [2022-11-21 16:16:59,485 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1368 transitions. [2022-11-21 16:16:59,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1368 transitions. [2022-11-21 16:16:59,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:16:59,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1368 transitions. [2022-11-21 16:16:59,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:59,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:59,494 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:59,494 INFO L175 Difference]: Start difference. First operand has 416 places, 420 transitions, 887 flow. Second operand 3 states and 1368 transitions. [2022-11-21 16:16:59,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 420 transitions, 934 flow [2022-11-21 16:16:59,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 420 transitions, 934 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:16:59,504 INFO L231 Difference]: Finished difference. Result has 417 places, 419 transitions, 889 flow [2022-11-21 16:16:59,505 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=885, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=889, PETRI_PLACES=417, PETRI_TRANSITIONS=419} [2022-11-21 16:16:59,506 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -27 predicate places. [2022-11-21 16:16:59,506 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 419 transitions, 889 flow [2022-11-21 16:16:59,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.6666666666667) internal successors, (1349), 3 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:59,507 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:59,507 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] [2022-11-21 16:16:59,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 16:16:59,508 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:16:59,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:59,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1782736468, now seen corresponding path program 1 times [2022-11-21 16:16:59,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:59,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69344553] [2022-11-21 16:16:59,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:59,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:59,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:16:59,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:59,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69344553] [2022-11-21 16:16:59,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69344553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:59,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:59,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:16:59,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836426032] [2022-11-21 16:16:59,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:59,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:16:59,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:59,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:16:59,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:16:59,577 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 484 [2022-11-21 16:16:59,579 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 419 transitions, 889 flow. Second operand has 3 states, 3 states have (on average 462.0) internal successors, (1386), 3 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:59,579 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:59,579 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 484 [2022-11-21 16:16:59,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:16:59,828 INFO L130 PetriNetUnfolder]: 81/1044 cut-off events. [2022-11-21 16:16:59,828 INFO L131 PetriNetUnfolder]: For 36/38 co-relation queries the response was YES. [2022-11-21 16:16:59,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1224 conditions, 1044 events. 81/1044 cut-off events. For 36/38 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5522 event pairs, 12 based on Foata normal form. 0/917 useless extension candidates. Maximal degree in co-relation 1202. Up to 86 conditions per place. [2022-11-21 16:16:59,841 INFO L137 encePairwiseOnDemand]: 480/484 looper letters, 11 selfloop transitions, 3 changer transitions 0/421 dead transitions. [2022-11-21 16:16:59,841 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 421 transitions, 922 flow [2022-11-21 16:16:59,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:16:59,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:16:59,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1395 transitions. [2022-11-21 16:16:59,846 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9607438016528925 [2022-11-21 16:16:59,847 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1395 transitions. [2022-11-21 16:16:59,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1395 transitions. [2022-11-21 16:16:59,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:16:59,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1395 transitions. [2022-11-21 16:16:59,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 465.0) internal successors, (1395), 3 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:59,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:59,858 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:59,858 INFO L175 Difference]: Start difference. First operand has 417 places, 419 transitions, 889 flow. Second operand 3 states and 1395 transitions. [2022-11-21 16:16:59,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 421 transitions, 922 flow [2022-11-21 16:16:59,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 421 transitions, 918 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:16:59,871 INFO L231 Difference]: Finished difference. Result has 419 places, 420 transitions, 903 flow [2022-11-21 16:16:59,872 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=885, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=903, PETRI_PLACES=419, PETRI_TRANSITIONS=420} [2022-11-21 16:16:59,872 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -25 predicate places. [2022-11-21 16:16:59,873 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 420 transitions, 903 flow [2022-11-21 16:16:59,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.0) internal successors, (1386), 3 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:59,874 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:59,874 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] [2022-11-21 16:16:59,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 16:16:59,874 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:16:59,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:59,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1966584577, now seen corresponding path program 1 times [2022-11-21 16:16:59,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:59,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248419813] [2022-11-21 16:16:59,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:59,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:59,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:16:59,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:59,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248419813] [2022-11-21 16:16:59,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248419813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:59,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:59,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:16:59,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271579075] [2022-11-21 16:16:59,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:59,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:16:59,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:59,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:16:59,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:16:59,951 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 484 [2022-11-21 16:16:59,953 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 420 transitions, 903 flow. Second operand has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:16:59,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:59,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 484 [2022-11-21 16:16:59,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:00,235 INFO L130 PetriNetUnfolder]: 81/1360 cut-off events. [2022-11-21 16:17:00,235 INFO L131 PetriNetUnfolder]: For 32/40 co-relation queries the response was YES. [2022-11-21 16:17:00,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1604 conditions, 1360 events. 81/1360 cut-off events. For 32/40 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7713 event pairs, 7 based on Foata normal form. 1/1227 useless extension candidates. Maximal degree in co-relation 1544. Up to 55 conditions per place. [2022-11-21 16:17:00,249 INFO L137 encePairwiseOnDemand]: 481/484 looper letters, 21 selfloop transitions, 2 changer transitions 0/420 dead transitions. [2022-11-21 16:17:00,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 420 transitions, 950 flow [2022-11-21 16:17:00,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:00,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:17:00,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1368 transitions. [2022-11-21 16:17:00,253 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9421487603305785 [2022-11-21 16:17:00,254 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1368 transitions. [2022-11-21 16:17:00,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1368 transitions. [2022-11-21 16:17:00,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:00,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1368 transitions. [2022-11-21 16:17:00,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:00,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:00,262 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:00,262 INFO L175 Difference]: Start difference. First operand has 419 places, 420 transitions, 903 flow. Second operand 3 states and 1368 transitions. [2022-11-21 16:17:00,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 420 transitions, 950 flow [2022-11-21 16:17:00,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 420 transitions, 944 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:17:00,273 INFO L231 Difference]: Finished difference. Result has 418 places, 419 transitions, 899 flow [2022-11-21 16:17:00,274 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=899, PETRI_PLACES=418, PETRI_TRANSITIONS=419} [2022-11-21 16:17:00,274 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -26 predicate places. [2022-11-21 16:17:00,274 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 419 transitions, 899 flow [2022-11-21 16:17:00,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:00,275 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:00,276 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] [2022-11-21 16:17:00,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 16:17:00,276 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:17:00,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:00,277 INFO L85 PathProgramCache]: Analyzing trace with hash -506786121, now seen corresponding path program 1 times [2022-11-21 16:17:00,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:00,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271823929] [2022-11-21 16:17:00,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:00,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:00,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:00,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:00,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271823929] [2022-11-21 16:17:00,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271823929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:00,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:00,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:17:00,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839223207] [2022-11-21 16:17:00,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:00,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:17:00,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:00,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:17:00,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:17:00,568 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 484 [2022-11-21 16:17:00,572 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 419 transitions, 899 flow. Second operand has 8 states, 8 states have (on average 391.875) internal successors, (3135), 8 states have internal predecessors, (3135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:00,572 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:00,572 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 484 [2022-11-21 16:17:00,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:01,366 INFO L130 PetriNetUnfolder]: 382/2668 cut-off events. [2022-11-21 16:17:01,367 INFO L131 PetriNetUnfolder]: For 28/73 co-relation queries the response was YES. [2022-11-21 16:17:01,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3636 conditions, 2668 events. 382/2668 cut-off events. For 28/73 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 21591 event pairs, 155 based on Foata normal form. 7/2330 useless extension candidates. Maximal degree in co-relation 3574. Up to 517 conditions per place. [2022-11-21 16:17:01,394 INFO L137 encePairwiseOnDemand]: 471/484 looper letters, 116 selfloop transitions, 14 changer transitions 0/466 dead transitions. [2022-11-21 16:17:01,394 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 466 transitions, 1267 flow [2022-11-21 16:17:01,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 16:17:01,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 16:17:01,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4398 transitions. [2022-11-21 16:17:01,406 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8260706235912848 [2022-11-21 16:17:01,406 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4398 transitions. [2022-11-21 16:17:01,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4398 transitions. [2022-11-21 16:17:01,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:01,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4398 transitions. [2022-11-21 16:17:01,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 399.8181818181818) internal successors, (4398), 11 states have internal predecessors, (4398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:01,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 484.0) internal successors, (5808), 12 states have internal predecessors, (5808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:01,432 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 484.0) internal successors, (5808), 12 states have internal predecessors, (5808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:01,433 INFO L175 Difference]: Start difference. First operand has 418 places, 419 transitions, 899 flow. Second operand 11 states and 4398 transitions. [2022-11-21 16:17:01,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 466 transitions, 1267 flow [2022-11-21 16:17:01,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 466 transitions, 1263 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:17:01,444 INFO L231 Difference]: Finished difference. Result has 430 places, 426 transitions, 963 flow [2022-11-21 16:17:01,445 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=963, PETRI_PLACES=430, PETRI_TRANSITIONS=426} [2022-11-21 16:17:01,445 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -14 predicate places. [2022-11-21 16:17:01,445 INFO L495 AbstractCegarLoop]: Abstraction has has 430 places, 426 transitions, 963 flow [2022-11-21 16:17:01,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 391.875) internal successors, (3135), 8 states have internal predecessors, (3135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:01,447 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:01,447 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] [2022-11-21 16:17:01,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 16:17:01,448 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:17:01,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:01,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1343727641, now seen corresponding path program 1 times [2022-11-21 16:17:01,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:01,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288949676] [2022-11-21 16:17:01,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:01,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:01,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:01,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:01,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288949676] [2022-11-21 16:17:01,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288949676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:01,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:01,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:17:01,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465611829] [2022-11-21 16:17:01,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:01,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:01,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:01,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:01,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:01,512 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 484 [2022-11-21 16:17:01,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 426 transitions, 963 flow. Second operand has 3 states, 3 states have (on average 455.0) internal successors, (1365), 3 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:01,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:01,515 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 484 [2022-11-21 16:17:01,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:01,980 INFO L130 PetriNetUnfolder]: 161/2421 cut-off events. [2022-11-21 16:17:01,980 INFO L131 PetriNetUnfolder]: For 41/44 co-relation queries the response was YES. [2022-11-21 16:17:01,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2826 conditions, 2421 events. 161/2421 cut-off events. For 41/44 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 17699 event pairs, 13 based on Foata normal form. 0/2170 useless extension candidates. Maximal degree in co-relation 2759. Up to 144 conditions per place. [2022-11-21 16:17:01,996 INFO L137 encePairwiseOnDemand]: 478/484 looper letters, 17 selfloop transitions, 2 changer transitions 0/427 dead transitions. [2022-11-21 16:17:01,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 427 transitions, 1006 flow [2022-11-21 16:17:01,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:01,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:17:02,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1382 transitions. [2022-11-21 16:17:02,002 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9517906336088154 [2022-11-21 16:17:02,003 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1382 transitions. [2022-11-21 16:17:02,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1382 transitions. [2022-11-21 16:17:02,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:02,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1382 transitions. [2022-11-21 16:17:02,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 460.6666666666667) internal successors, (1382), 3 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:02,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:02,012 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:02,012 INFO L175 Difference]: Start difference. First operand has 430 places, 426 transitions, 963 flow. Second operand 3 states and 1382 transitions. [2022-11-21 16:17:02,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 427 transitions, 1006 flow [2022-11-21 16:17:02,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 427 transitions, 1000 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:17:02,023 INFO L231 Difference]: Finished difference. Result has 427 places, 424 transitions, 963 flow [2022-11-21 16:17:02,023 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=949, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=963, PETRI_PLACES=427, PETRI_TRANSITIONS=424} [2022-11-21 16:17:02,024 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -17 predicate places. [2022-11-21 16:17:02,024 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 424 transitions, 963 flow [2022-11-21 16:17:02,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.0) internal successors, (1365), 3 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:02,025 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:02,025 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] [2022-11-21 16:17:02,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-21 16:17:02,026 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:17:02,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:02,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1595628073, now seen corresponding path program 1 times [2022-11-21 16:17:02,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:02,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973702169] [2022-11-21 16:17:02,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:02,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:02,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:02,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:02,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973702169] [2022-11-21 16:17:02,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973702169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:02,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:02,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:17:02,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188775966] [2022-11-21 16:17:02,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:02,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:02,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:02,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:02,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:02,090 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 484 [2022-11-21 16:17:02,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 424 transitions, 963 flow. Second operand has 3 states, 3 states have (on average 449.6666666666667) internal successors, (1349), 3 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:02,092 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:02,092 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 484 [2022-11-21 16:17:02,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:02,549 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1301] thread2EXIT-->L100-7: Formula: (and (= v_thread2Thread1of1ForFork0_thidvar2_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem36#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread2Thread1of1ForFork0_thidvar0_4) (= v_thread2Thread1of1ForFork0_thidvar1_4 0)) InVars {thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem36#1=|v_ULTIMATE.start_main_#t~mem36#1_5|} OutVars{thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem36#1=|v_ULTIMATE.start_main_#t~mem36#1_5|} AuxVars[] AssignedVars[][296], [486#(= |#race~n1~0| 0), 501#(= |#race~n2~0| 0), Black: 512#true, Black: 576#true, Black: 545#(not |thread2Thread1of1ForFork0_#t~short11|), 514#(= |#race~count2~0| 0), 536#(= |#race~get1~0| 0), 526#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 530#(not |thread1Thread1of1ForFork1_#t~short2|), 398#L100-7true, 509#(= |#race~count1~0| 0), 581#true, Black: 534#true, Black: 570#(and (<= ~n1~0 0) (not |thread1Thread1of1ForFork1_#t~short2|) (= thread1Thread1of1ForFork1_~i~0 0)), 578#(= |#race~get2~0| 0), Black: 558#(<= ~n1~0 0), Black: 559#(and (<= ~n1~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 507#true, Black: 564#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|))]) [2022-11-21 16:17:02,549 INFO L383 tUnfolder$Statistics]: this new event has 251 ancestors and is cut-off event [2022-11-21 16:17:02,549 INFO L386 tUnfolder$Statistics]: existing Event has 220 ancestors and is cut-off event [2022-11-21 16:17:02,550 INFO L386 tUnfolder$Statistics]: existing Event has 221 ancestors and is cut-off event [2022-11-21 16:17:02,550 INFO L386 tUnfolder$Statistics]: existing Event has 220 ancestors and is cut-off event [2022-11-21 16:17:02,552 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1235] L77-5-->L77-6: Formula: true InVars {} OutVars{thread2Thread1of1ForFork0_#t~nondet17=|v_thread2Thread1of1ForFork0_#t~nondet17_1|} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_#t~nondet17][252], [486#(= |#race~n1~0| 0), 501#(= |#race~n2~0| 0), Black: 576#true, Black: 512#true, Black: 545#(not |thread2Thread1of1ForFork0_#t~short11|), 405#L77-6true, 191#L99-7true, 514#(= |#race~count2~0| 0), 536#(= |#race~get1~0| 0), 526#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 530#(not |thread1Thread1of1ForFork1_#t~short2|), 509#(= |#race~count1~0| 0), 581#true, Black: 534#true, 578#(= |#race~get2~0| 0), Black: 570#(and (<= ~n1~0 0) (not |thread1Thread1of1ForFork1_#t~short2|) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 558#(<= ~n1~0 0), Black: 559#(and (<= ~n1~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 507#true, Black: 564#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|))]) [2022-11-21 16:17:02,553 INFO L383 tUnfolder$Statistics]: this new event has 231 ancestors and is cut-off event [2022-11-21 16:17:02,553 INFO L386 tUnfolder$Statistics]: existing Event has 247 ancestors and is cut-off event [2022-11-21 16:17:02,553 INFO L386 tUnfolder$Statistics]: existing Event has 216 ancestors and is cut-off event [2022-11-21 16:17:02,553 INFO L386 tUnfolder$Statistics]: existing Event has 216 ancestors and is cut-off event [2022-11-21 16:17:02,560 INFO L130 PetriNetUnfolder]: 148/1931 cut-off events. [2022-11-21 16:17:02,560 INFO L131 PetriNetUnfolder]: For 69/87 co-relation queries the response was YES. [2022-11-21 16:17:02,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2388 conditions, 1931 events. 148/1931 cut-off events. For 69/87 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 13367 event pairs, 23 based on Foata normal form. 2/1735 useless extension candidates. Maximal degree in co-relation 2322. Up to 190 conditions per place. [2022-11-21 16:17:02,582 INFO L137 encePairwiseOnDemand]: 481/484 looper letters, 20 selfloop transitions, 2 changer transitions 0/424 dead transitions. [2022-11-21 16:17:02,582 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 424 transitions, 1008 flow [2022-11-21 16:17:02,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:02,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:17:02,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1367 transitions. [2022-11-21 16:17:02,587 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9414600550964187 [2022-11-21 16:17:02,587 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1367 transitions. [2022-11-21 16:17:02,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1367 transitions. [2022-11-21 16:17:02,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:02,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1367 transitions. [2022-11-21 16:17:02,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 455.6666666666667) internal successors, (1367), 3 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:02,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:02,597 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:02,598 INFO L175 Difference]: Start difference. First operand has 427 places, 424 transitions, 963 flow. Second operand 3 states and 1367 transitions. [2022-11-21 16:17:02,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 424 transitions, 1008 flow [2022-11-21 16:17:02,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 424 transitions, 1008 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:17:02,608 INFO L231 Difference]: Finished difference. Result has 428 places, 423 transitions, 965 flow [2022-11-21 16:17:02,610 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=961, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=965, PETRI_PLACES=428, PETRI_TRANSITIONS=423} [2022-11-21 16:17:02,610 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -16 predicate places. [2022-11-21 16:17:02,611 INFO L495 AbstractCegarLoop]: Abstraction has has 428 places, 423 transitions, 965 flow [2022-11-21 16:17:02,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.6666666666667) internal successors, (1349), 3 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:02,612 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:02,612 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] [2022-11-21 16:17:02,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-21 16:17:02,612 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:17:02,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:02,613 INFO L85 PathProgramCache]: Analyzing trace with hash -704204307, now seen corresponding path program 1 times [2022-11-21 16:17:02,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:02,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621999929] [2022-11-21 16:17:02,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:02,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:02,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:02,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:02,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621999929] [2022-11-21 16:17:02,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621999929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:02,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:02,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:17:02,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441325885] [2022-11-21 16:17:02,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:02,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:17:02,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:02,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:17:02,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:17:02,879 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 484 [2022-11-21 16:17:02,883 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 423 transitions, 965 flow. Second operand has 8 states, 8 states have (on average 392.0) internal successors, (3136), 8 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:02,883 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:02,883 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 484 [2022-11-21 16:17:02,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:03,668 INFO L130 PetriNetUnfolder]: 359/2267 cut-off events. [2022-11-21 16:17:03,668 INFO L131 PetriNetUnfolder]: For 238/249 co-relation queries the response was YES. [2022-11-21 16:17:03,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3491 conditions, 2267 events. 359/2267 cut-off events. For 238/249 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17657 event pairs, 165 based on Foata normal form. 10/2066 useless extension candidates. Maximal degree in co-relation 3422. Up to 587 conditions per place. [2022-11-21 16:17:03,693 INFO L137 encePairwiseOnDemand]: 469/484 looper letters, 117 selfloop transitions, 18 changer transitions 0/470 dead transitions. [2022-11-21 16:17:03,693 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 470 transitions, 1355 flow [2022-11-21 16:17:03,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:17:03,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-21 16:17:03,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4791 transitions. [2022-11-21 16:17:03,706 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.824896694214876 [2022-11-21 16:17:03,707 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4791 transitions. [2022-11-21 16:17:03,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4791 transitions. [2022-11-21 16:17:03,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:03,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4791 transitions. [2022-11-21 16:17:03,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 399.25) internal successors, (4791), 12 states have internal predecessors, (4791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:03,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 484.0) internal successors, (6292), 13 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:03,739 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 484.0) internal successors, (6292), 13 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:03,740 INFO L175 Difference]: Start difference. First operand has 428 places, 423 transitions, 965 flow. Second operand 12 states and 4791 transitions. [2022-11-21 16:17:03,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 470 transitions, 1355 flow [2022-11-21 16:17:03,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 470 transitions, 1351 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:17:03,753 INFO L231 Difference]: Finished difference. Result has 441 places, 428 transitions, 1039 flow [2022-11-21 16:17:03,753 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=961, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1039, PETRI_PLACES=441, PETRI_TRANSITIONS=428} [2022-11-21 16:17:03,754 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -3 predicate places. [2022-11-21 16:17:03,754 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 428 transitions, 1039 flow [2022-11-21 16:17:03,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 392.0) internal successors, (3136), 8 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:03,756 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:03,756 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] [2022-11-21 16:17:03,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-21 16:17:03,757 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:17:03,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:03,757 INFO L85 PathProgramCache]: Analyzing trace with hash -13537954, now seen corresponding path program 1 times [2022-11-21 16:17:03,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:03,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110400279] [2022-11-21 16:17:03,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:03,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:03,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:03,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:03,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110400279] [2022-11-21 16:17:03,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110400279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:03,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:03,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:17:03,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550820359] [2022-11-21 16:17:03,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:03,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:03,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:03,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:03,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:03,910 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 464 out of 484 [2022-11-21 16:17:03,912 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 428 transitions, 1039 flow. Second operand has 3 states, 3 states have (on average 465.6666666666667) internal successors, (1397), 3 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:03,912 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:03,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 464 of 484 [2022-11-21 16:17:03,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:04,334 INFO L130 PetriNetUnfolder]: 81/1681 cut-off events. [2022-11-21 16:17:04,335 INFO L131 PetriNetUnfolder]: For 93/95 co-relation queries the response was YES. [2022-11-21 16:17:04,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2050 conditions, 1681 events. 81/1681 cut-off events. For 93/95 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 10061 event pairs, 3 based on Foata normal form. 0/1545 useless extension candidates. Maximal degree in co-relation 1976. Up to 30 conditions per place. [2022-11-21 16:17:04,354 INFO L137 encePairwiseOnDemand]: 481/484 looper letters, 10 selfloop transitions, 2 changer transitions 0/432 dead transitions. [2022-11-21 16:17:04,354 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 432 transitions, 1074 flow [2022-11-21 16:17:04,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:04,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:17:04,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1405 transitions. [2022-11-21 16:17:04,359 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9676308539944903 [2022-11-21 16:17:04,359 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1405 transitions. [2022-11-21 16:17:04,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1405 transitions. [2022-11-21 16:17:04,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:04,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1405 transitions. [2022-11-21 16:17:04,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 468.3333333333333) internal successors, (1405), 3 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:04,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:04,368 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:04,368 INFO L175 Difference]: Start difference. First operand has 441 places, 428 transitions, 1039 flow. Second operand 3 states and 1405 transitions. [2022-11-21 16:17:04,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 432 transitions, 1074 flow [2022-11-21 16:17:04,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 432 transitions, 1059 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-21 16:17:04,379 INFO L231 Difference]: Finished difference. Result has 438 places, 428 transitions, 1032 flow [2022-11-21 16:17:04,380 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=1024, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1032, PETRI_PLACES=438, PETRI_TRANSITIONS=428} [2022-11-21 16:17:04,381 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -6 predicate places. [2022-11-21 16:17:04,381 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 428 transitions, 1032 flow [2022-11-21 16:17:04,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 465.6666666666667) internal successors, (1397), 3 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:04,382 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:04,382 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] [2022-11-21 16:17:04,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-21 16:17:04,382 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:17:04,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:04,383 INFO L85 PathProgramCache]: Analyzing trace with hash -503367447, now seen corresponding path program 1 times [2022-11-21 16:17:04,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:04,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863325232] [2022-11-21 16:17:04,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:04,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:04,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 16:17:04,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:04,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863325232] [2022-11-21 16:17:04,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863325232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:04,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:04,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:17:04,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372363420] [2022-11-21 16:17:04,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:04,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:17:04,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:04,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:17:04,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:17:04,656 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 484 [2022-11-21 16:17:04,661 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 428 transitions, 1032 flow. Second operand has 8 states, 8 states have (on average 393.0) internal successors, (3144), 8 states have internal predecessors, (3144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:04,661 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:04,661 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 484 [2022-11-21 16:17:04,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:05,875 INFO L130 PetriNetUnfolder]: 534/4202 cut-off events. [2022-11-21 16:17:05,875 INFO L131 PetriNetUnfolder]: For 312/316 co-relation queries the response was YES. [2022-11-21 16:17:05,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5987 conditions, 4202 events. 534/4202 cut-off events. For 312/316 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 36803 event pairs, 205 based on Foata normal form. 0/3790 useless extension candidates. Maximal degree in co-relation 5909. Up to 689 conditions per place. [2022-11-21 16:17:05,927 INFO L137 encePairwiseOnDemand]: 472/484 looper letters, 112 selfloop transitions, 14 changer transitions 0/464 dead transitions. [2022-11-21 16:17:05,927 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 464 transitions, 1394 flow [2022-11-21 16:17:05,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:17:05,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-21 16:17:05,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3607 transitions. [2022-11-21 16:17:05,937 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8280532598714417 [2022-11-21 16:17:05,937 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3607 transitions. [2022-11-21 16:17:05,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3607 transitions. [2022-11-21 16:17:05,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:05,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3607 transitions. [2022-11-21 16:17:05,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 400.77777777777777) internal successors, (3607), 9 states have internal predecessors, (3607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:05,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 484.0) internal successors, (4840), 10 states have internal predecessors, (4840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:05,959 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 484.0) internal successors, (4840), 10 states have internal predecessors, (4840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:05,959 INFO L175 Difference]: Start difference. First operand has 438 places, 428 transitions, 1032 flow. Second operand 9 states and 3607 transitions. [2022-11-21 16:17:05,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 464 transitions, 1394 flow [2022-11-21 16:17:05,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 464 transitions, 1390 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:17:05,973 INFO L231 Difference]: Finished difference. Result has 448 places, 436 transitions, 1124 flow [2022-11-21 16:17:05,974 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=1028, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1124, PETRI_PLACES=448, PETRI_TRANSITIONS=436} [2022-11-21 16:17:05,975 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, 4 predicate places. [2022-11-21 16:17:05,975 INFO L495 AbstractCegarLoop]: Abstraction has has 448 places, 436 transitions, 1124 flow [2022-11-21 16:17:05,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 393.0) internal successors, (3144), 8 states have internal predecessors, (3144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:05,976 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:05,977 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] [2022-11-21 16:17:05,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-21 16:17:05,977 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:17:05,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:05,978 INFO L85 PathProgramCache]: Analyzing trace with hash 313720129, now seen corresponding path program 1 times [2022-11-21 16:17:05,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:05,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326759845] [2022-11-21 16:17:05,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:05,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:06,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:06,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:06,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326759845] [2022-11-21 16:17:06,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326759845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:06,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:06,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:17:06,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681964089] [2022-11-21 16:17:06,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:06,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:17:06,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:06,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:17:06,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:17:06,592 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 484 [2022-11-21 16:17:06,595 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 436 transitions, 1124 flow. Second operand has 6 states, 6 states have (on average 392.8333333333333) internal successors, (2357), 6 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:06,595 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:06,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 484 [2022-11-21 16:17:06,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:13,458 INFO L130 PetriNetUnfolder]: 9388/30544 cut-off events. [2022-11-21 16:17:13,458 INFO L131 PetriNetUnfolder]: For 908/972 co-relation queries the response was YES. [2022-11-21 16:17:13,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49238 conditions, 30544 events. 9388/30544 cut-off events. For 908/972 co-relation queries the response was YES. Maximal size of possible extension queue 564. Compared 334854 event pairs, 7878 based on Foata normal form. 12/27956 useless extension candidates. Maximal degree in co-relation 49154. Up to 13310 conditions per place. [2022-11-21 16:17:13,737 INFO L137 encePairwiseOnDemand]: 479/484 looper letters, 168 selfloop transitions, 4 changer transitions 0/531 dead transitions. [2022-11-21 16:17:13,737 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 531 transitions, 1658 flow [2022-11-21 16:17:13,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:17:13,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:17:13,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2513 transitions. [2022-11-21 16:17:13,758 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.865358126721763 [2022-11-21 16:17:13,758 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2513 transitions. [2022-11-21 16:17:13,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2513 transitions. [2022-11-21 16:17:13,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:13,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2513 transitions. [2022-11-21 16:17:13,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 418.8333333333333) internal successors, (2513), 6 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:13,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:13,772 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:13,772 INFO L175 Difference]: Start difference. First operand has 448 places, 436 transitions, 1124 flow. Second operand 6 states and 2513 transitions. [2022-11-21 16:17:13,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 531 transitions, 1658 flow [2022-11-21 16:17:13,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 531 transitions, 1646 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:17:13,823 INFO L231 Difference]: Finished difference. Result has 448 places, 435 transitions, 1118 flow [2022-11-21 16:17:13,824 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=1110, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1118, PETRI_PLACES=448, PETRI_TRANSITIONS=435} [2022-11-21 16:17:13,825 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, 4 predicate places. [2022-11-21 16:17:13,825 INFO L495 AbstractCegarLoop]: Abstraction has has 448 places, 435 transitions, 1118 flow [2022-11-21 16:17:13,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 392.8333333333333) internal successors, (2357), 6 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:13,826 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:13,826 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] [2022-11-21 16:17:13,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-21 16:17:13,826 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:17:13,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:13,827 INFO L85 PathProgramCache]: Analyzing trace with hash -102044001, now seen corresponding path program 1 times [2022-11-21 16:17:13,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:13,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283492033] [2022-11-21 16:17:13,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:13,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:14,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 16:17:14,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:14,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283492033] [2022-11-21 16:17:14,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283492033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:14,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:14,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:17:14,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021120194] [2022-11-21 16:17:14,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:14,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:17:14,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:14,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:17:14,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:17:14,251 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 484 [2022-11-21 16:17:14,253 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 435 transitions, 1118 flow. Second operand has 8 states, 8 states have (on average 393.125) internal successors, (3145), 8 states have internal predecessors, (3145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:14,254 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:14,254 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 484 [2022-11-21 16:17:14,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:15,263 INFO L130 PetriNetUnfolder]: 599/3679 cut-off events. [2022-11-21 16:17:15,263 INFO L131 PetriNetUnfolder]: For 606/705 co-relation queries the response was YES. [2022-11-21 16:17:15,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5717 conditions, 3679 events. 599/3679 cut-off events. For 606/705 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 33423 event pairs, 273 based on Foata normal form. 19/3264 useless extension candidates. Maximal degree in co-relation 5635. Up to 895 conditions per place. [2022-11-21 16:17:15,280 INFO L137 encePairwiseOnDemand]: 471/484 looper letters, 108 selfloop transitions, 19 changer transitions 0/467 dead transitions. [2022-11-21 16:17:15,280 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 467 transitions, 1484 flow [2022-11-21 16:17:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 16:17:15,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 16:17:15,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3996 transitions. [2022-11-21 16:17:15,286 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8256198347107438 [2022-11-21 16:17:15,286 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3996 transitions. [2022-11-21 16:17:15,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3996 transitions. [2022-11-21 16:17:15,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:15,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3996 transitions. [2022-11-21 16:17:15,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 399.6) internal successors, (3996), 10 states have internal predecessors, (3996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:15,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 484.0) internal successors, (5324), 11 states have internal predecessors, (5324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:15,301 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 484.0) internal successors, (5324), 11 states have internal predecessors, (5324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:15,301 INFO L175 Difference]: Start difference. First operand has 448 places, 435 transitions, 1118 flow. Second operand 10 states and 3996 transitions. [2022-11-21 16:17:15,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 467 transitions, 1484 flow [2022-11-21 16:17:15,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 467 transitions, 1477 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:17:15,314 INFO L231 Difference]: Finished difference. Result has 457 places, 442 transitions, 1223 flow [2022-11-21 16:17:15,315 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=1111, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1223, PETRI_PLACES=457, PETRI_TRANSITIONS=442} [2022-11-21 16:17:15,315 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, 13 predicate places. [2022-11-21 16:17:15,315 INFO L495 AbstractCegarLoop]: Abstraction has has 457 places, 442 transitions, 1223 flow [2022-11-21 16:17:15,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 393.125) internal successors, (3145), 8 states have internal predecessors, (3145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:15,316 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:15,316 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] [2022-11-21 16:17:15,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-21 16:17:15,317 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:17:15,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:15,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1447354780, now seen corresponding path program 1 times [2022-11-21 16:17:15,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:15,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503219656] [2022-11-21 16:17:15,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:15,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:15,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 16:17:15,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:15,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503219656] [2022-11-21 16:17:15,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503219656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:15,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:15,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:17:15,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250187386] [2022-11-21 16:17:15,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:15,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:17:15,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:15,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:17:15,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:17:15,809 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 484 [2022-11-21 16:17:15,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 442 transitions, 1223 flow. Second operand has 6 states, 6 states have (on average 386.6666666666667) internal successors, (2320), 6 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:15,811 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:15,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 484 [2022-11-21 16:17:15,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:21,657 INFO L130 PetriNetUnfolder]: 11195/28844 cut-off events. [2022-11-21 16:17:21,657 INFO L131 PetriNetUnfolder]: For 2720/2960 co-relation queries the response was YES. [2022-11-21 16:17:21,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51037 conditions, 28844 events. 11195/28844 cut-off events. For 2720/2960 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 280745 event pairs, 2492 based on Foata normal form. 6/26766 useless extension candidates. Maximal degree in co-relation 50950. Up to 11076 conditions per place. [2022-11-21 16:17:21,901 INFO L137 encePairwiseOnDemand]: 477/484 looper letters, 218 selfloop transitions, 5 changer transitions 0/575 dead transitions. [2022-11-21 16:17:21,902 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 575 transitions, 1946 flow [2022-11-21 16:17:21,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:17:21,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:17:21,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2518 transitions. [2022-11-21 16:17:21,906 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8670798898071626 [2022-11-21 16:17:21,906 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2518 transitions. [2022-11-21 16:17:21,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2518 transitions. [2022-11-21 16:17:21,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:21,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2518 transitions. [2022-11-21 16:17:21,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 419.6666666666667) internal successors, (2518), 6 states have internal predecessors, (2518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:21,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:21,916 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:21,916 INFO L175 Difference]: Start difference. First operand has 457 places, 442 transitions, 1223 flow. Second operand 6 states and 2518 transitions. [2022-11-21 16:17:21,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 575 transitions, 1946 flow [2022-11-21 16:17:21,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 575 transitions, 1934 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:17:21,940 INFO L231 Difference]: Finished difference. Result has 456 places, 440 transitions, 1217 flow [2022-11-21 16:17:21,941 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=1207, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1217, PETRI_PLACES=456, PETRI_TRANSITIONS=440} [2022-11-21 16:17:21,942 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, 12 predicate places. [2022-11-21 16:17:21,942 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 440 transitions, 1217 flow [2022-11-21 16:17:21,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 386.6666666666667) internal successors, (2320), 6 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:21,943 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:21,943 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] [2022-11-21 16:17:21,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-21 16:17:21,943 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:17:21,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:21,944 INFO L85 PathProgramCache]: Analyzing trace with hash 654674906, now seen corresponding path program 1 times [2022-11-21 16:17:21,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:21,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000566758] [2022-11-21 16:17:21,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:21,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:22,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 16:17:22,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:22,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000566758] [2022-11-21 16:17:22,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000566758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:22,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:22,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:17:22,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177325988] [2022-11-21 16:17:22,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:22,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:17:22,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:22,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:17:22,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:17:22,550 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 484 [2022-11-21 16:17:22,551 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 440 transitions, 1217 flow. Second operand has 6 states, 6 states have (on average 386.8333333333333) internal successors, (2321), 6 states have internal predecessors, (2321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:22,552 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:22,552 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 484 [2022-11-21 16:17:22,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:28,372 INFO L130 PetriNetUnfolder]: 10554/27953 cut-off events. [2022-11-21 16:17:28,372 INFO L131 PetriNetUnfolder]: For 3606/3834 co-relation queries the response was YES. [2022-11-21 16:17:28,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49741 conditions, 27953 events. 10554/27953 cut-off events. For 3606/3834 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 275304 event pairs, 2166 based on Foata normal form. 27/26298 useless extension candidates. Maximal degree in co-relation 49656. Up to 11053 conditions per place. [2022-11-21 16:17:28,630 INFO L137 encePairwiseOnDemand]: 477/484 looper letters, 222 selfloop transitions, 5 changer transitions 0/579 dead transitions. [2022-11-21 16:17:28,630 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 579 transitions, 1994 flow [2022-11-21 16:17:28,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:17:28,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:17:28,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2522 transitions. [2022-11-21 16:17:28,636 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8684573002754821 [2022-11-21 16:17:28,636 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2522 transitions. [2022-11-21 16:17:28,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2522 transitions. [2022-11-21 16:17:28,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:28,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2522 transitions. [2022-11-21 16:17:28,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 420.3333333333333) internal successors, (2522), 6 states have internal predecessors, (2522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:28,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:28,647 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:28,647 INFO L175 Difference]: Start difference. First operand has 456 places, 440 transitions, 1217 flow. Second operand 6 states and 2522 transitions. [2022-11-21 16:17:28,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 579 transitions, 1994 flow [2022-11-21 16:17:28,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 579 transitions, 1952 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:17:28,680 INFO L231 Difference]: Finished difference. Result has 454 places, 438 transitions, 1213 flow [2022-11-21 16:17:28,680 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=1203, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1213, PETRI_PLACES=454, PETRI_TRANSITIONS=438} [2022-11-21 16:17:28,681 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, 10 predicate places. [2022-11-21 16:17:28,681 INFO L495 AbstractCegarLoop]: Abstraction has has 454 places, 438 transitions, 1213 flow [2022-11-21 16:17:28,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 386.8333333333333) internal successors, (2321), 6 states have internal predecessors, (2321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:28,682 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:28,682 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] [2022-11-21 16:17:28,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-21 16:17:28,683 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:17:28,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:28,683 INFO L85 PathProgramCache]: Analyzing trace with hash -109975139, now seen corresponding path program 1 times [2022-11-21 16:17:28,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:28,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235526158] [2022-11-21 16:17:28,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:28,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:28,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:28,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:28,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:28,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235526158] [2022-11-21 16:17:28,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235526158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:28,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:28,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:17:28,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521671508] [2022-11-21 16:17:28,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:28,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:28,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:28,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:28,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:28,755 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 484 [2022-11-21 16:17:28,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 438 transitions, 1213 flow. Second operand has 3 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:28,756 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:28,757 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 484 [2022-11-21 16:17:28,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:29,592 INFO L130 PetriNetUnfolder]: 188/3484 cut-off events. [2022-11-21 16:17:29,592 INFO L131 PetriNetUnfolder]: For 547/559 co-relation queries the response was YES. [2022-11-21 16:17:29,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4565 conditions, 3484 events. 188/3484 cut-off events. For 547/559 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 27745 event pairs, 35 based on Foata normal form. 2/3220 useless extension candidates. Maximal degree in co-relation 4477. Up to 158 conditions per place. [2022-11-21 16:17:29,611 INFO L137 encePairwiseOnDemand]: 480/484 looper letters, 17 selfloop transitions, 2 changer transitions 0/443 dead transitions. [2022-11-21 16:17:29,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 443 transitions, 1264 flow [2022-11-21 16:17:29,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:29,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:17:29,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1395 transitions. [2022-11-21 16:17:29,618 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9607438016528925 [2022-11-21 16:17:29,618 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1395 transitions. [2022-11-21 16:17:29,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1395 transitions. [2022-11-21 16:17:29,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:29,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1395 transitions. [2022-11-21 16:17:29,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 465.0) internal successors, (1395), 3 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:29,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:29,625 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:29,625 INFO L175 Difference]: Start difference. First operand has 454 places, 438 transitions, 1213 flow. Second operand 3 states and 1395 transitions. [2022-11-21 16:17:29,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 443 transitions, 1264 flow [2022-11-21 16:17:29,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 443 transitions, 1254 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:17:29,641 INFO L231 Difference]: Finished difference. Result has 453 places, 440 transitions, 1223 flow [2022-11-21 16:17:29,642 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=1203, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1223, PETRI_PLACES=453, PETRI_TRANSITIONS=440} [2022-11-21 16:17:29,643 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, 9 predicate places. [2022-11-21 16:17:29,644 INFO L495 AbstractCegarLoop]: Abstraction has has 453 places, 440 transitions, 1223 flow [2022-11-21 16:17:29,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:29,644 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:29,644 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] [2022-11-21 16:17:29,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-21 16:17:29,645 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:17:29,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:29,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1006570525, now seen corresponding path program 2 times [2022-11-21 16:17:29,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:29,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381585708] [2022-11-21 16:17:29,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:29,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:29,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:29,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:29,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:29,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381585708] [2022-11-21 16:17:29,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381585708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:29,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:29,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:17:29,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126818254] [2022-11-21 16:17:29,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:29,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:29,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:29,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:29,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:29,723 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 484 [2022-11-21 16:17:29,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 440 transitions, 1223 flow. Second operand has 3 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:29,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:29,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 484 [2022-11-21 16:17:29,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:30,293 INFO L130 PetriNetUnfolder]: 155/2913 cut-off events. [2022-11-21 16:17:30,293 INFO L131 PetriNetUnfolder]: For 698/714 co-relation queries the response was YES. [2022-11-21 16:17:30,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4070 conditions, 2913 events. 155/2913 cut-off events. For 698/714 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 21891 event pairs, 30 based on Foata normal form. 14/2782 useless extension candidates. Maximal degree in co-relation 3981. Up to 117 conditions per place. [2022-11-21 16:17:30,313 INFO L137 encePairwiseOnDemand]: 480/484 looper letters, 19 selfloop transitions, 2 changer transitions 0/445 dead transitions. [2022-11-21 16:17:30,313 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 445 transitions, 1282 flow [2022-11-21 16:17:30,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:30,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:17:30,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1395 transitions. [2022-11-21 16:17:30,315 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9607438016528925 [2022-11-21 16:17:30,316 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1395 transitions. [2022-11-21 16:17:30,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1395 transitions. [2022-11-21 16:17:30,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:30,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1395 transitions. [2022-11-21 16:17:30,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 465.0) internal successors, (1395), 3 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:30,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:30,321 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:30,321 INFO L175 Difference]: Start difference. First operand has 453 places, 440 transitions, 1223 flow. Second operand 3 states and 1395 transitions. [2022-11-21 16:17:30,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 445 transitions, 1282 flow [2022-11-21 16:17:30,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 445 transitions, 1280 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:17:30,332 INFO L231 Difference]: Finished difference. Result has 456 places, 442 transitions, 1245 flow [2022-11-21 16:17:30,333 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=1221, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1245, PETRI_PLACES=456, PETRI_TRANSITIONS=442} [2022-11-21 16:17:30,333 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, 12 predicate places. [2022-11-21 16:17:30,334 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 442 transitions, 1245 flow [2022-11-21 16:17:30,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:30,334 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:30,334 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] [2022-11-21 16:17:30,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-21 16:17:30,335 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:17:30,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:30,335 INFO L85 PathProgramCache]: Analyzing trace with hash 673208165, now seen corresponding path program 1 times [2022-11-21 16:17:30,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:30,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486957718] [2022-11-21 16:17:30,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:30,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:30,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:30,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:30,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486957718] [2022-11-21 16:17:30,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486957718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:30,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:30,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:17:30,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067177417] [2022-11-21 16:17:30,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:30,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:30,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:30,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:30,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:30,418 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 484 [2022-11-21 16:17:30,420 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 442 transitions, 1245 flow. Second operand has 3 states, 3 states have (on average 452.6666666666667) internal successors, (1358), 3 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:30,420 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:30,420 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 484 [2022-11-21 16:17:30,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:30,992 INFO L130 PetriNetUnfolder]: 136/2712 cut-off events. [2022-11-21 16:17:30,993 INFO L131 PetriNetUnfolder]: For 577/610 co-relation queries the response was YES. [2022-11-21 16:17:31,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3846 conditions, 2712 events. 136/2712 cut-off events. For 577/610 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 19905 event pairs, 23 based on Foata normal form. 0/2600 useless extension candidates. Maximal degree in co-relation 3760. Up to 109 conditions per place. [2022-11-21 16:17:31,015 INFO L137 encePairwiseOnDemand]: 480/484 looper letters, 16 selfloop transitions, 1 changer transitions 0/439 dead transitions. [2022-11-21 16:17:31,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 439 transitions, 1273 flow [2022-11-21 16:17:31,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:31,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:17:31,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1370 transitions. [2022-11-21 16:17:31,018 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9435261707988981 [2022-11-21 16:17:31,019 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1370 transitions. [2022-11-21 16:17:31,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1370 transitions. [2022-11-21 16:17:31,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:31,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1370 transitions. [2022-11-21 16:17:31,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 456.6666666666667) internal successors, (1370), 3 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:31,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:31,026 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:31,026 INFO L175 Difference]: Start difference. First operand has 456 places, 442 transitions, 1245 flow. Second operand 3 states and 1370 transitions. [2022-11-21 16:17:31,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 439 transitions, 1273 flow [2022-11-21 16:17:31,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 439 transitions, 1267 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-21 16:17:31,143 INFO L231 Difference]: Finished difference. Result has 454 places, 439 transitions, 1235 flow [2022-11-21 16:17:31,143 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=1233, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1235, PETRI_PLACES=454, PETRI_TRANSITIONS=439} [2022-11-21 16:17:31,144 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, 10 predicate places. [2022-11-21 16:17:31,144 INFO L495 AbstractCegarLoop]: Abstraction has has 454 places, 439 transitions, 1235 flow [2022-11-21 16:17:31,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 452.6666666666667) internal successors, (1358), 3 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:31,144 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:31,145 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:31,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-21 16:17:31,145 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-21 16:17:31,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:31,145 INFO L85 PathProgramCache]: Analyzing trace with hash -664097398, now seen corresponding path program 1 times [2022-11-21 16:17:31,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:31,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058055770] [2022-11-21 16:17:31,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:31,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:31,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:31,658 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 16:17:31,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:31,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058055770] [2022-11-21 16:17:31,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058055770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:31,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:31,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:17:31,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930705016] [2022-11-21 16:17:31,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:31,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:17:31,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:31,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:17:31,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:17:31,663 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 484 [2022-11-21 16:17:31,665 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 439 transitions, 1235 flow. Second operand has 6 states, 6 states have (on average 387.6666666666667) internal successors, (2326), 6 states have internal predecessors, (2326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:31,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:31,665 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 484 [2022-11-21 16:17:31,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand