./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_315b2403-ffa4-4c3c-9eb6-4d9326410cfd/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_315b2403-ffa4-4c3c-9eb6-4d9326410cfd/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_315b2403-ffa4-4c3c-9eb6-4d9326410cfd/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_315b2403-ffa4-4c3c-9eb6-4d9326410cfd/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_315b2403-ffa4-4c3c-9eb6-4d9326410cfd/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_315b2403-ffa4-4c3c-9eb6-4d9326410cfd/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 da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da --- 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 16:12:49,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:12:49,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:12:49,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:12:49,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:12:49,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:12:49,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:12:49,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:12:49,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:12:49,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:12:49,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:12:49,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:12:49,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:12:49,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:12:49,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:12:49,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:12:49,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:12:49,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:12:49,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:12:49,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:12:49,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:12:49,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:12:49,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:12:49,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:12:49,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:12:49,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:12:49,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:12:49,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:12:49,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:12:49,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:12:49,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:12:49,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:12:49,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:12:49,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:12:49,773 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:12:49,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:12:49,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:12:49,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:12:49,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:12:49,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:12:49,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:12:49,777 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_315b2403-ffa4-4c3c-9eb6-4d9326410cfd/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 16:12:49,816 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:12:49,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:12:49,817 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:12:49,817 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:12:49,818 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:12:49,818 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:12:49,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:12:49,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:12:49,819 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:12:49,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:12:49,821 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:12:49,821 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:12:49,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:12:49,822 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:12:49,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:12:49,822 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:12:49,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:12:49,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:12:49,823 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 16:12:49,823 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:12:49,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:12:49,823 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:12:49,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:12:49,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:12:49,824 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:12:49,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:12:49,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:12:49,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:12:49,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:12:49,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:12:49,826 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:12:49,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:12:49,826 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:12:49,827 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:12:49,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:12:49,827 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_315b2403-ffa4-4c3c-9eb6-4d9326410cfd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_315b2403-ffa4-4c3c-9eb6-4d9326410cfd/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da [2022-11-21 16:12:50,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:12:50,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:12:50,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:12:50,183 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:12:50,183 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:12:50,185 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_315b2403-ffa4-4c3c-9eb6-4d9326410cfd/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-11-21 16:12:53,252 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:12:53,643 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:12:53,643 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_315b2403-ffa4-4c3c-9eb6-4d9326410cfd/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-11-21 16:12:53,681 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_315b2403-ffa4-4c3c-9eb6-4d9326410cfd/bin/uautomizer-vX5HgA9Q3a/data/d71c98bfc/107be90d17ed4d65ba32df2068969eda/FLAG2b9f15fe2 [2022-11-21 16:12:53,699 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_315b2403-ffa4-4c3c-9eb6-4d9326410cfd/bin/uautomizer-vX5HgA9Q3a/data/d71c98bfc/107be90d17ed4d65ba32df2068969eda [2022-11-21 16:12:53,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:12:53,706 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:12:53,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:12:53,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:12:53,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:12:53,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:12:53" (1/1) ... [2022-11-21 16:12:53,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36dccb38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:53, skipping insertion in model container [2022-11-21 16:12:53,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:12:53" (1/1) ... [2022-11-21 16:12:53,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:12:53,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:12:53,986 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 16:12:54,595 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_315b2403-ffa4-4c3c-9eb6-4d9326410cfd/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-11-21 16:12:54,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:12:54,654 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:12:54,666 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 16:12:54,705 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_315b2403-ffa4-4c3c-9eb6-4d9326410cfd/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-11-21 16:12:54,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:12:54,889 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:12:54,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:54 WrapperNode [2022-11-21 16:12:54,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:12:54,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:12:54,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:12:54,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:12:54,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:54" (1/1) ... [2022-11-21 16:12:54,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:54" (1/1) ... [2022-11-21 16:12:55,011 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 225 [2022-11-21 16:12:55,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:12:55,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:12:55,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:12:55,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:12:55,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:54" (1/1) ... [2022-11-21 16:12:55,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:54" (1/1) ... [2022-11-21 16:12:55,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:54" (1/1) ... [2022-11-21 16:12:55,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:54" (1/1) ... [2022-11-21 16:12:55,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:54" (1/1) ... [2022-11-21 16:12:55,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:54" (1/1) ... [2022-11-21 16:12:55,099 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:54" (1/1) ... [2022-11-21 16:12:55,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:54" (1/1) ... [2022-11-21 16:12:55,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:12:55,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:12:55,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:12:55,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:12:55,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:54" (1/1) ... [2022-11-21 16:12:55,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:12:55,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_315b2403-ffa4-4c3c-9eb6-4d9326410cfd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:12:55,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_315b2403-ffa4-4c3c-9eb6-4d9326410cfd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:12:55,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_315b2403-ffa4-4c3c-9eb6-4d9326410cfd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:12:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:12:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:12:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:12:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:12:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 16:12:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:12:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:12:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:12:55,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:12:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-21 16:12:55,191 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-21 16:12:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:12:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:12:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:12:55,193 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 16:12:55,591 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:12:55,593 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:12:56,253 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:12:56,408 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:12:56,408 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:12:56,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:12:56 BoogieIcfgContainer [2022-11-21 16:12:56,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:12:56,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:12:56,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:12:56,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:12:56,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:12:53" (1/3) ... [2022-11-21 16:12:56,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4edadcae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:12:56, skipping insertion in model container [2022-11-21 16:12:56,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:54" (2/3) ... [2022-11-21 16:12:56,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4edadcae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:12:56, skipping insertion in model container [2022-11-21 16:12:56,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:12:56" (3/3) ... [2022-11-21 16:12:56,429 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2022-11-21 16:12:56,438 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:12:56,448 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:12:56,449 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-21 16:12:56,449 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:12:56,536 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-21 16:12:56,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 247 transitions, 510 flow [2022-11-21 16:12:56,698 INFO L130 PetriNetUnfolder]: 8/332 cut-off events. [2022-11-21 16:12:56,699 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 16:12:56,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 332 events. 8/332 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 680 event pairs, 0 based on Foata normal form. 0/293 useless extension candidates. Maximal degree in co-relation 175. Up to 4 conditions per place. [2022-11-21 16:12:56,705 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 247 transitions, 510 flow [2022-11-21 16:12:56,712 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 245 places, 244 transitions, 500 flow [2022-11-21 16:12:56,721 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:12:56,731 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;@347ca15a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:12:56,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-21 16:12:56,748 INFO L130 PetriNetUnfolder]: 0/42 cut-off events. [2022-11-21 16:12:56,748 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:12:56,748 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:56,749 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:56,750 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:12:56,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:56,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1565249472, now seen corresponding path program 1 times [2022-11-21 16:12:56,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:56,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317524882] [2022-11-21 16:12:56,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:56,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:57,791 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 16:12:57,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:57,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317524882] [2022-11-21 16:12:57,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317524882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:57,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:57,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:12:57,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372681958] [2022-11-21 16:12:57,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:57,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:12:57,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:57,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:12:57,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:12:57,855 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 247 [2022-11-21 16:12:57,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 244 transitions, 500 flow. Second operand has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 0 states have call successors, (0), 0 states 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 16:12:57,863 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:57,863 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 247 [2022-11-21 16:12:57,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:58,862 INFO L130 PetriNetUnfolder]: 850/2319 cut-off events. [2022-11-21 16:12:58,862 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-21 16:12:58,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3845 conditions, 2319 events. 850/2319 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 15355 event pairs, 849 based on Foata normal form. 36/2192 useless extension candidates. Maximal degree in co-relation 3474. Up to 1503 conditions per place. [2022-11-21 16:12:58,881 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 75 selfloop transitions, 5 changer transitions 17/225 dead transitions. [2022-11-21 16:12:58,882 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 225 transitions, 624 flow [2022-11-21 16:12:58,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:12:58,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:12:58,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 978 transitions. [2022-11-21 16:12:58,898 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.659919028340081 [2022-11-21 16:12:58,899 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 978 transitions. [2022-11-21 16:12:58,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 978 transitions. [2022-11-21 16:12:58,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:58,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 978 transitions. [2022-11-21 16:12:58,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 0 states 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 16:12:58,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states 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 16:12:58,920 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states 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 16:12:58,922 INFO L175 Difference]: Start difference. First operand has 245 places, 244 transitions, 500 flow. Second operand 6 states and 978 transitions. [2022-11-21 16:12:58,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 225 transitions, 624 flow [2022-11-21 16:12:58,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 225 transitions, 616 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:12:58,933 INFO L231 Difference]: Finished difference. Result has 231 places, 208 transitions, 430 flow [2022-11-21 16:12:58,935 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=430, PETRI_PLACES=231, PETRI_TRANSITIONS=208} [2022-11-21 16:12:58,939 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -14 predicate places. [2022-11-21 16:12:58,939 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 208 transitions, 430 flow [2022-11-21 16:12:58,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 0 states have call successors, (0), 0 states 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 16:12:58,940 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:58,941 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] [2022-11-21 16:12:58,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:12:58,941 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:12:58,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:58,942 INFO L85 PathProgramCache]: Analyzing trace with hash -2129762661, now seen corresponding path program 1 times [2022-11-21 16:12:58,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:58,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639198970] [2022-11-21 16:12:58,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:58,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:58,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:59,404 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 16:12:59,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:59,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639198970] [2022-11-21 16:12:59,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639198970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:59,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:59,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:12:59,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512101129] [2022-11-21 16:12:59,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:59,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:12:59,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:59,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:12:59,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:12:59,410 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 247 [2022-11-21 16:12:59,412 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 208 transitions, 430 flow. Second operand has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states 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 16:12:59,412 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:59,412 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 247 [2022-11-21 16:12:59,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:13:00,135 INFO L130 PetriNetUnfolder]: 826/2037 cut-off events. [2022-11-21 16:13:00,135 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 16:13:00,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3515 conditions, 2037 events. 826/2037 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 13105 event pairs, 825 based on Foata normal form. 0/1911 useless extension candidates. Maximal degree in co-relation 3453. Up to 1461 conditions per place. [2022-11-21 16:13:00,150 INFO L137 encePairwiseOnDemand]: 241/247 looper letters, 74 selfloop transitions, 5 changer transitions 0/207 dead transitions. [2022-11-21 16:13:00,151 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 207 transitions, 586 flow [2022-11-21 16:13:00,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:13:00,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:13:00,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 962 transitions. [2022-11-21 16:13:00,155 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6491228070175439 [2022-11-21 16:13:00,155 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 962 transitions. [2022-11-21 16:13:00,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 962 transitions. [2022-11-21 16:13:00,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:13:00,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 962 transitions. [2022-11-21 16:13:00,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.33333333333334) internal successors, (962), 6 states have internal predecessors, (962), 0 states have call successors, (0), 0 states 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 16:13:00,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states 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 16:13:00,164 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states 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 16:13:00,164 INFO L175 Difference]: Start difference. First operand has 231 places, 208 transitions, 430 flow. Second operand 6 states and 962 transitions. [2022-11-21 16:13:00,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 207 transitions, 586 flow [2022-11-21 16:13:00,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 207 transitions, 576 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:13:00,172 INFO L231 Difference]: Finished difference. Result has 213 places, 207 transitions, 428 flow [2022-11-21 16:13:00,172 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=428, PETRI_PLACES=213, PETRI_TRANSITIONS=207} [2022-11-21 16:13:00,173 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -32 predicate places. [2022-11-21 16:13:00,173 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 207 transitions, 428 flow [2022-11-21 16:13:00,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states 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 16:13:00,174 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:13:00,175 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:13:00,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:13:00,175 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:13:00,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:13:00,176 INFO L85 PathProgramCache]: Analyzing trace with hash 2057709957, now seen corresponding path program 1 times [2022-11-21 16:13:00,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:13:00,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065114976] [2022-11-21 16:13:00,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:13:00,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:13:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:00,677 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 16:13:00,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:13:00,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065114976] [2022-11-21 16:13:00,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065114976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:13:00,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:13:00,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:13:00,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136703155] [2022-11-21 16:13:00,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:13:00,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:13:00,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:13:00,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:13:00,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:13:00,684 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 247 [2022-11-21 16:13:00,686 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 207 transitions, 428 flow. Second operand has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 0 states have call successors, (0), 0 states 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 16:13:00,686 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:13:00,686 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 247 [2022-11-21 16:13:00,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:13:01,712 INFO L130 PetriNetUnfolder]: 1102/2533 cut-off events. [2022-11-21 16:13:01,713 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 16:13:01,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4476 conditions, 2533 events. 1102/2533 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 16786 event pairs, 903 based on Foata normal form. 0/2417 useless extension candidates. Maximal degree in co-relation 4403. Up to 1831 conditions per place. [2022-11-21 16:13:01,730 INFO L137 encePairwiseOnDemand]: 234/247 looper letters, 82 selfloop transitions, 30 changer transitions 0/236 dead transitions. [2022-11-21 16:13:01,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 236 transitions, 710 flow [2022-11-21 16:13:01,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:13:01,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:13:01,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2022-11-21 16:13:01,733 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6470985155195681 [2022-11-21 16:13:01,733 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2022-11-21 16:13:01,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2022-11-21 16:13:01,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:13:01,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2022-11-21 16:13:01,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 0 states 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 16:13:01,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states 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 16:13:01,741 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states 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 16:13:01,741 INFO L175 Difference]: Start difference. First operand has 213 places, 207 transitions, 428 flow. Second operand 6 states and 959 transitions. [2022-11-21 16:13:01,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 236 transitions, 710 flow [2022-11-21 16:13:01,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 236 transitions, 700 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:13:01,747 INFO L231 Difference]: Finished difference. Result has 218 places, 236 transitions, 620 flow [2022-11-21 16:13:01,748 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=620, PETRI_PLACES=218, PETRI_TRANSITIONS=236} [2022-11-21 16:13:01,749 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -27 predicate places. [2022-11-21 16:13:01,749 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 236 transitions, 620 flow [2022-11-21 16:13:01,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 0 states have call successors, (0), 0 states 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 16:13:01,750 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:13:01,750 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] [2022-11-21 16:13:01,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:13:01,751 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:13:01,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:13:01,751 INFO L85 PathProgramCache]: Analyzing trace with hash -496369643, now seen corresponding path program 1 times [2022-11-21 16:13:01,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:13:01,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853678758] [2022-11-21 16:13:01,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:13:01,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:13:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:01,924 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 16:13:01,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:13:01,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853678758] [2022-11-21 16:13:01,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853678758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:13:01,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:13:01,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:13:01,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679887608] [2022-11-21 16:13:01,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:13:01,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:13:01,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:13:01,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:13:01,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:13:01,929 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 247 [2022-11-21 16:13:01,930 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 236 transitions, 620 flow. Second operand has 5 states, 5 states have (on average 206.6) internal successors, (1033), 5 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states 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 16:13:01,930 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:13:01,931 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 247 [2022-11-21 16:13:01,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:13:02,371 INFO L130 PetriNetUnfolder]: 533/1823 cut-off events. [2022-11-21 16:13:02,372 INFO L131 PetriNetUnfolder]: For 536/596 co-relation queries the response was YES. [2022-11-21 16:13:02,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3549 conditions, 1823 events. 533/1823 cut-off events. For 536/596 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 12049 event pairs, 348 based on Foata normal form. 0/1721 useless extension candidates. Maximal degree in co-relation 2555. Up to 738 conditions per place. [2022-11-21 16:13:02,386 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 50 selfloop transitions, 4 changer transitions 0/241 dead transitions. [2022-11-21 16:13:02,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 241 transitions, 738 flow [2022-11-21 16:13:02,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:13:02,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:13:02,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1255 transitions. [2022-11-21 16:13:02,390 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8468286099865048 [2022-11-21 16:13:02,390 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1255 transitions. [2022-11-21 16:13:02,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1255 transitions. [2022-11-21 16:13:02,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:13:02,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1255 transitions. [2022-11-21 16:13:02,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.16666666666666) internal successors, (1255), 6 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states 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 16:13:02,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states 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 16:13:02,398 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states 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 16:13:02,398 INFO L175 Difference]: Start difference. First operand has 218 places, 236 transitions, 620 flow. Second operand 6 states and 1255 transitions. [2022-11-21 16:13:02,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 241 transitions, 738 flow [2022-11-21 16:13:02,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 241 transitions, 738 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:13:02,407 INFO L231 Difference]: Finished difference. Result has 227 places, 239 transitions, 649 flow [2022-11-21 16:13:02,408 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=649, PETRI_PLACES=227, PETRI_TRANSITIONS=239} [2022-11-21 16:13:02,409 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -18 predicate places. [2022-11-21 16:13:02,409 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 239 transitions, 649 flow [2022-11-21 16:13:02,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 206.6) internal successors, (1033), 5 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states 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 16:13:02,410 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:13:02,410 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:13:02,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:13:02,411 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:13:02,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:13:02,411 INFO L85 PathProgramCache]: Analyzing trace with hash 8979447, now seen corresponding path program 1 times [2022-11-21 16:13:02,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:13:02,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596596715] [2022-11-21 16:13:02,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:13:02,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:13:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:02,997 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 16:13:02,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:13:02,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596596715] [2022-11-21 16:13:02,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596596715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:13:02,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:13:02,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:13:02,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131916412] [2022-11-21 16:13:02,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:13:02,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:13:03,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:13:03,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:13:03,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:13:03,002 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 247 [2022-11-21 16:13:03,003 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 239 transitions, 649 flow. Second operand has 6 states, 6 states have (on average 145.33333333333334) internal successors, (872), 6 states have internal predecessors, (872), 0 states have call successors, (0), 0 states 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 16:13:03,003 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:13:03,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 247 [2022-11-21 16:13:03,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:13:04,119 INFO L130 PetriNetUnfolder]: 1231/2765 cut-off events. [2022-11-21 16:13:04,120 INFO L131 PetriNetUnfolder]: For 912/918 co-relation queries the response was YES. [2022-11-21 16:13:04,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6602 conditions, 2765 events. 1231/2765 cut-off events. For 912/918 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 17932 event pairs, 837 based on Foata normal form. 0/2668 useless extension candidates. Maximal degree in co-relation 6499. Up to 2032 conditions per place. [2022-11-21 16:13:04,143 INFO L137 encePairwiseOnDemand]: 234/247 looper letters, 110 selfloop transitions, 30 changer transitions 0/268 dead transitions. [2022-11-21 16:13:04,144 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 268 transitions, 1035 flow [2022-11-21 16:13:04,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:13:04,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:13:04,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2022-11-21 16:13:04,147 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6470985155195681 [2022-11-21 16:13:04,147 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2022-11-21 16:13:04,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2022-11-21 16:13:04,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:13:04,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2022-11-21 16:13:04,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 0 states 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 16:13:04,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states 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 16:13:04,153 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states 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 16:13:04,154 INFO L175 Difference]: Start difference. First operand has 227 places, 239 transitions, 649 flow. Second operand 6 states and 959 transitions. [2022-11-21 16:13:04,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 268 transitions, 1035 flow [2022-11-21 16:13:04,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 268 transitions, 1034 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:13:04,163 INFO L231 Difference]: Finished difference. Result has 236 places, 268 transitions, 898 flow [2022-11-21 16:13:04,163 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=898, PETRI_PLACES=236, PETRI_TRANSITIONS=268} [2022-11-21 16:13:04,164 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -9 predicate places. [2022-11-21 16:13:04,165 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 268 transitions, 898 flow [2022-11-21 16:13:04,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.33333333333334) internal successors, (872), 6 states have internal predecessors, (872), 0 states have call successors, (0), 0 states 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 16:13:04,165 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:13:04,166 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] [2022-11-21 16:13:04,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:13:04,166 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:13:04,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:13:04,167 INFO L85 PathProgramCache]: Analyzing trace with hash 856795434, now seen corresponding path program 1 times [2022-11-21 16:13:04,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:13:04,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252167899] [2022-11-21 16:13:04,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:13:04,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:13:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:04,686 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 16:13:04,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:13:04,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252167899] [2022-11-21 16:13:04,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252167899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:13:04,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:13:04,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:13:04,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507331501] [2022-11-21 16:13:04,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:13:04,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:13:04,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:13:04,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:13:04,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:13:04,691 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 247 [2022-11-21 16:13:04,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 268 transitions, 898 flow. Second operand has 6 states, 6 states have (on average 148.16666666666666) internal successors, (889), 6 states have internal predecessors, (889), 0 states have call successors, (0), 0 states 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 16:13:04,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:13:04,692 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 247 [2022-11-21 16:13:04,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:13:05,964 INFO L130 PetriNetUnfolder]: 1432/3268 cut-off events. [2022-11-21 16:13:05,964 INFO L131 PetriNetUnfolder]: For 2414/2426 co-relation queries the response was YES. [2022-11-21 16:13:05,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9403 conditions, 3268 events. 1432/3268 cut-off events. For 2414/2426 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 21469 event pairs, 638 based on Foata normal form. 0/3190 useless extension candidates. Maximal degree in co-relation 7545. Up to 2134 conditions per place. [2022-11-21 16:13:05,995 INFO L137 encePairwiseOnDemand]: 231/247 looper letters, 146 selfloop transitions, 26 changer transitions 0/303 dead transitions. [2022-11-21 16:13:05,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 303 transitions, 1412 flow [2022-11-21 16:13:05,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:13:05,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:13:05,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 976 transitions. [2022-11-21 16:13:05,999 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6585695006747638 [2022-11-21 16:13:05,999 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 976 transitions. [2022-11-21 16:13:05,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 976 transitions. [2022-11-21 16:13:06,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:13:06,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 976 transitions. [2022-11-21 16:13:06,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:13:06,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states 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 16:13:06,007 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states 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 16:13:06,008 INFO L175 Difference]: Start difference. First operand has 236 places, 268 transitions, 898 flow. Second operand 6 states and 976 transitions. [2022-11-21 16:13:06,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 303 transitions, 1412 flow [2022-11-21 16:13:06,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 303 transitions, 1364 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-11-21 16:13:06,026 INFO L231 Difference]: Finished difference. Result has 245 places, 288 transitions, 1082 flow [2022-11-21 16:13:06,027 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1082, PETRI_PLACES=245, PETRI_TRANSITIONS=288} [2022-11-21 16:13:06,030 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 0 predicate places. [2022-11-21 16:13:06,030 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 288 transitions, 1082 flow [2022-11-21 16:13:06,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.16666666666666) internal successors, (889), 6 states have internal predecessors, (889), 0 states have call successors, (0), 0 states 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 16:13:06,031 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:13:06,031 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] [2022-11-21 16:13:06,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:13:06,031 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:13:06,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:13:06,032 INFO L85 PathProgramCache]: Analyzing trace with hash 2029226046, now seen corresponding path program 1 times [2022-11-21 16:13:06,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:13:06,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801602100] [2022-11-21 16:13:06,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:13:06,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:13:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:06,639 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 16:13:06,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:13:06,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801602100] [2022-11-21 16:13:06,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801602100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:13:06,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:13:06,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:13:06,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203846749] [2022-11-21 16:13:06,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:13:06,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:13:06,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:13:06,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:13:06,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:13:06,644 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 247 [2022-11-21 16:13:06,645 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 288 transitions, 1082 flow. Second operand has 6 states, 6 states have (on average 155.16666666666666) internal successors, (931), 6 states have internal predecessors, (931), 0 states have call successors, (0), 0 states 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 16:13:06,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:13:06,646 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 247 [2022-11-21 16:13:06,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:13:08,021 INFO L130 PetriNetUnfolder]: 1425/3431 cut-off events. [2022-11-21 16:13:08,021 INFO L131 PetriNetUnfolder]: For 4328/4493 co-relation queries the response was YES. [2022-11-21 16:13:08,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10746 conditions, 3431 events. 1425/3431 cut-off events. For 4328/4493 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 23275 event pairs, 618 based on Foata normal form. 0/3344 useless extension candidates. Maximal degree in co-relation 7767. Up to 2288 conditions per place. [2022-11-21 16:13:08,053 INFO L137 encePairwiseOnDemand]: 236/247 looper letters, 177 selfloop transitions, 22 changer transitions 0/336 dead transitions. [2022-11-21 16:13:08,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 336 transitions, 1730 flow [2022-11-21 16:13:08,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:13:08,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:13:08,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1029 transitions. [2022-11-21 16:13:08,057 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.694331983805668 [2022-11-21 16:13:08,057 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1029 transitions. [2022-11-21 16:13:08,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1029 transitions. [2022-11-21 16:13:08,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:13:08,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1029 transitions. [2022-11-21 16:13:08,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 171.5) internal successors, (1029), 6 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states 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 16:13:08,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states 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 16:13:08,064 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states 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 16:13:08,065 INFO L175 Difference]: Start difference. First operand has 245 places, 288 transitions, 1082 flow. Second operand 6 states and 1029 transitions. [2022-11-21 16:13:08,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 336 transitions, 1730 flow [2022-11-21 16:13:08,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 336 transitions, 1730 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:13:08,078 INFO L231 Difference]: Finished difference. Result has 255 places, 309 transitions, 1336 flow [2022-11-21 16:13:08,079 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1082, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1336, PETRI_PLACES=255, PETRI_TRANSITIONS=309} [2022-11-21 16:13:08,080 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 10 predicate places. [2022-11-21 16:13:08,080 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 309 transitions, 1336 flow [2022-11-21 16:13:08,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.16666666666666) internal successors, (931), 6 states have internal predecessors, (931), 0 states have call successors, (0), 0 states 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 16:13:08,081 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:13:08,081 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] [2022-11-21 16:13:08,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:13:08,081 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:13:08,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:13:08,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1165878409, now seen corresponding path program 1 times [2022-11-21 16:13:08,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:13:08,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190748059] [2022-11-21 16:13:08,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:13:08,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:13:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:08,224 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 16:13:08,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:13:08,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190748059] [2022-11-21 16:13:08,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190748059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:13:08,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:13:08,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:13:08,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416957843] [2022-11-21 16:13:08,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:13:08,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:13:08,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:13:08,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:13:08,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:13:08,228 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 247 [2022-11-21 16:13:08,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 309 transitions, 1336 flow. Second operand has 5 states, 5 states have (on average 206.4) internal successors, (1032), 5 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states 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 16:13:08,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:13:08,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 247 [2022-11-21 16:13:08,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:13:08,679 INFO L130 PetriNetUnfolder]: 405/1318 cut-off events. [2022-11-21 16:13:08,679 INFO L131 PetriNetUnfolder]: For 2941/3013 co-relation queries the response was YES. [2022-11-21 16:13:08,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3984 conditions, 1318 events. 405/1318 cut-off events. For 2941/3013 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 7297 event pairs, 27 based on Foata normal form. 16/1310 useless extension candidates. Maximal degree in co-relation 3884. Up to 453 conditions per place. [2022-11-21 16:13:08,698 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 65 selfloop transitions, 4 changer transitions 1/253 dead transitions. [2022-11-21 16:13:08,699 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 253 transitions, 1162 flow [2022-11-21 16:13:08,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:13:08,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:13:08,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1278 transitions. [2022-11-21 16:13:08,702 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8623481781376519 [2022-11-21 16:13:08,702 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1278 transitions. [2022-11-21 16:13:08,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1278 transitions. [2022-11-21 16:13:08,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:13:08,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1278 transitions. [2022-11-21 16:13:08,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states 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 16:13:08,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states 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 16:13:08,711 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states 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 16:13:08,712 INFO L175 Difference]: Start difference. First operand has 255 places, 309 transitions, 1336 flow. Second operand 6 states and 1278 transitions. [2022-11-21 16:13:08,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 253 transitions, 1162 flow [2022-11-21 16:13:08,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 253 transitions, 1066 flow, removed 15 selfloop flow, removed 24 redundant places. [2022-11-21 16:13:08,756 INFO L231 Difference]: Finished difference. Result has 234 places, 227 transitions, 727 flow [2022-11-21 16:13:08,757 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=727, PETRI_PLACES=234, PETRI_TRANSITIONS=227} [2022-11-21 16:13:08,757 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -11 predicate places. [2022-11-21 16:13:08,757 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 227 transitions, 727 flow [2022-11-21 16:13:08,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 206.4) internal successors, (1032), 5 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states 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 16:13:08,758 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:13:08,758 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] [2022-11-21 16:13:08,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:13:08,759 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:13:08,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:13:08,759 INFO L85 PathProgramCache]: Analyzing trace with hash 868665731, now seen corresponding path program 1 times [2022-11-21 16:13:08,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:13:08,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79056943] [2022-11-21 16:13:08,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:13:08,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:13:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:11,439 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 16:13:11,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:13:11,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79056943] [2022-11-21 16:13:11,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79056943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:13:11,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:13:11,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:13:11,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273851650] [2022-11-21 16:13:11,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:13:11,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:13:11,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:13:11,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:13:11,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:13:11,443 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:13:11,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 227 transitions, 727 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:13:11,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:13:11,446 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:13:11,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:13:14,722 INFO L130 PetriNetUnfolder]: 1372/2922 cut-off events. [2022-11-21 16:13:14,722 INFO L131 PetriNetUnfolder]: For 5039/5039 co-relation queries the response was YES. [2022-11-21 16:13:14,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9424 conditions, 2922 events. 1372/2922 cut-off events. For 5039/5039 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 17076 event pairs, 675 based on Foata normal form. 8/2895 useless extension candidates. Maximal degree in co-relation 9163. Up to 1634 conditions per place. [2022-11-21 16:13:14,794 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 211 selfloop transitions, 65 changer transitions 0/387 dead transitions. [2022-11-21 16:13:14,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 387 transitions, 1943 flow [2022-11-21 16:13:14,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:13:14,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:13:14,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2810 transitions. [2022-11-21 16:13:14,806 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5688259109311741 [2022-11-21 16:13:14,807 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2810 transitions. [2022-11-21 16:13:14,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2810 transitions. [2022-11-21 16:13:14,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:13:14,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2810 transitions. [2022-11-21 16:13:14,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.5) internal successors, (2810), 20 states have internal predecessors, (2810), 0 states have call successors, (0), 0 states 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 16:13:14,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:13:14,830 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:13:14,830 INFO L175 Difference]: Start difference. First operand has 234 places, 227 transitions, 727 flow. Second operand 20 states and 2810 transitions. [2022-11-21 16:13:14,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 387 transitions, 1943 flow [2022-11-21 16:13:14,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 387 transitions, 1915 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-11-21 16:13:14,850 INFO L231 Difference]: Finished difference. Result has 255 places, 267 transitions, 1253 flow [2022-11-21 16:13:14,850 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1253, PETRI_PLACES=255, PETRI_TRANSITIONS=267} [2022-11-21 16:13:14,851 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 10 predicate places. [2022-11-21 16:13:14,852 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 267 transitions, 1253 flow [2022-11-21 16:13:14,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:13:14,853 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:13:14,853 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] [2022-11-21 16:13:14,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:13:14,854 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:13:14,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:13:14,855 INFO L85 PathProgramCache]: Analyzing trace with hash -807945959, now seen corresponding path program 2 times [2022-11-21 16:13:14,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:13:14,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718232962] [2022-11-21 16:13:14,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:13:14,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:13:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:17,875 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 16:13:17,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:13:17,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718232962] [2022-11-21 16:13:17,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718232962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:13:17,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:13:17,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:13:17,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073747501] [2022-11-21 16:13:17,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:13:17,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:13:17,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:13:17,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:13:17,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:13:17,879 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:13:17,882 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 267 transitions, 1253 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:13:17,882 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:13:17,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:13:17,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:13:21,391 INFO L130 PetriNetUnfolder]: 1488/3124 cut-off events. [2022-11-21 16:13:21,391 INFO L131 PetriNetUnfolder]: For 9738/9766 co-relation queries the response was YES. [2022-11-21 16:13:21,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12211 conditions, 3124 events. 1488/3124 cut-off events. For 9738/9766 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 18420 event pairs, 412 based on Foata normal form. 8/3096 useless extension candidates. Maximal degree in co-relation 11926. Up to 1209 conditions per place. [2022-11-21 16:13:21,427 INFO L137 encePairwiseOnDemand]: 228/247 looper letters, 327 selfloop transitions, 88 changer transitions 0/526 dead transitions. [2022-11-21 16:13:21,427 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 526 transitions, 3879 flow [2022-11-21 16:13:21,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:13:21,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:13:21,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2821 transitions. [2022-11-21 16:13:21,436 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5710526315789474 [2022-11-21 16:13:21,436 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2821 transitions. [2022-11-21 16:13:21,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2821 transitions. [2022-11-21 16:13:21,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:13:21,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2821 transitions. [2022-11-21 16:13:21,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.05) internal successors, (2821), 20 states have internal predecessors, (2821), 0 states have call successors, (0), 0 states 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 16:13:21,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:13:21,473 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:13:21,473 INFO L175 Difference]: Start difference. First operand has 255 places, 267 transitions, 1253 flow. Second operand 20 states and 2821 transitions. [2022-11-21 16:13:21,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 526 transitions, 3879 flow [2022-11-21 16:13:21,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 526 transitions, 3759 flow, removed 28 selfloop flow, removed 8 redundant places. [2022-11-21 16:13:21,511 INFO L231 Difference]: Finished difference. Result has 275 places, 330 transitions, 2240 flow [2022-11-21 16:13:21,513 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1198, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2240, PETRI_PLACES=275, PETRI_TRANSITIONS=330} [2022-11-21 16:13:21,514 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 30 predicate places. [2022-11-21 16:13:21,514 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 330 transitions, 2240 flow [2022-11-21 16:13:21,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:13:21,516 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:13:21,516 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] [2022-11-21 16:13:21,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:13:21,518 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:13:21,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:13:21,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1018123353, now seen corresponding path program 3 times [2022-11-21 16:13:21,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:13:21,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584397419] [2022-11-21 16:13:21,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:13:21,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:13:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:23,666 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 16:13:23,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:13:23,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584397419] [2022-11-21 16:13:23,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584397419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:13:23,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:13:23,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:13:23,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919820403] [2022-11-21 16:13:23,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:13:23,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:13:23,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:13:23,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:13:23,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:13:23,672 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:13:23,675 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 330 transitions, 2240 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:13:23,675 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:13:23,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:13:23,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:13:26,653 INFO L130 PetriNetUnfolder]: 1630/3292 cut-off events. [2022-11-21 16:13:26,653 INFO L131 PetriNetUnfolder]: For 22839/22916 co-relation queries the response was YES. [2022-11-21 16:13:26,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16134 conditions, 3292 events. 1630/3292 cut-off events. For 22839/22916 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 19462 event pairs, 471 based on Foata normal form. 8/3261 useless extension candidates. Maximal degree in co-relation 15840. Up to 1556 conditions per place. [2022-11-21 16:13:26,696 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 327 selfloop transitions, 102 changer transitions 0/540 dead transitions. [2022-11-21 16:13:26,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 540 transitions, 4738 flow [2022-11-21 16:13:26,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-21 16:13:26,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-21 16:13:26,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2686 transitions. [2022-11-21 16:13:26,705 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5723417856381845 [2022-11-21 16:13:26,706 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2686 transitions. [2022-11-21 16:13:26,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2686 transitions. [2022-11-21 16:13:26,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:13:26,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2686 transitions. [2022-11-21 16:13:26,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 141.3684210526316) internal successors, (2686), 19 states have internal predecessors, (2686), 0 states have call successors, (0), 0 states 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 16:13:26,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states 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 16:13:26,809 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states 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 16:13:26,809 INFO L175 Difference]: Start difference. First operand has 275 places, 330 transitions, 2240 flow. Second operand 19 states and 2686 transitions. [2022-11-21 16:13:26,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 540 transitions, 4738 flow [2022-11-21 16:13:26,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 540 transitions, 4657 flow, removed 21 selfloop flow, removed 9 redundant places. [2022-11-21 16:13:26,885 INFO L231 Difference]: Finished difference. Result has 290 places, 367 transitions, 3129 flow [2022-11-21 16:13:26,885 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=2163, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3129, PETRI_PLACES=290, PETRI_TRANSITIONS=367} [2022-11-21 16:13:26,886 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 45 predicate places. [2022-11-21 16:13:26,886 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 367 transitions, 3129 flow [2022-11-21 16:13:26,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:13:26,887 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:13:26,888 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] [2022-11-21 16:13:26,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:13:26,888 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:13:26,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:13:26,889 INFO L85 PathProgramCache]: Analyzing trace with hash -209797591, now seen corresponding path program 4 times [2022-11-21 16:13:26,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:13:26,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158426750] [2022-11-21 16:13:26,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:13:26,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:13:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:29,129 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 16:13:29,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:13:29,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158426750] [2022-11-21 16:13:29,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158426750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:13:29,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:13:29,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:13:29,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769641325] [2022-11-21 16:13:29,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:13:29,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:13:29,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:13:29,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:13:29,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:13:29,133 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:13:29,137 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 367 transitions, 3129 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:13:29,137 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:13:29,137 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:13:29,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:13:32,202 INFO L130 PetriNetUnfolder]: 1907/3792 cut-off events. [2022-11-21 16:13:32,202 INFO L131 PetriNetUnfolder]: For 35006/35034 co-relation queries the response was YES. [2022-11-21 16:13:32,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21175 conditions, 3792 events. 1907/3792 cut-off events. For 35006/35034 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 22901 event pairs, 690 based on Foata normal form. 8/3762 useless extension candidates. Maximal degree in co-relation 20875. Up to 2253 conditions per place. [2022-11-21 16:13:32,260 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 314 selfloop transitions, 140 changer transitions 0/565 dead transitions. [2022-11-21 16:13:32,260 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 565 transitions, 5884 flow [2022-11-21 16:13:32,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-21 16:13:32,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-21 16:13:32,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2414 transitions. [2022-11-21 16:13:32,265 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5748987854251012 [2022-11-21 16:13:32,265 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2414 transitions. [2022-11-21 16:13:32,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2414 transitions. [2022-11-21 16:13:32,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:13:32,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2414 transitions. [2022-11-21 16:13:32,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 142.0) internal successors, (2414), 17 states have internal predecessors, (2414), 0 states have call successors, (0), 0 states 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 16:13:32,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states 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 16:13:32,279 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states 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 16:13:32,279 INFO L175 Difference]: Start difference. First operand has 290 places, 367 transitions, 3129 flow. Second operand 17 states and 2414 transitions. [2022-11-21 16:13:32,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 565 transitions, 5884 flow [2022-11-21 16:13:32,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 565 transitions, 5746 flow, removed 21 selfloop flow, removed 12 redundant places. [2022-11-21 16:13:32,404 INFO L231 Difference]: Finished difference. Result has 302 places, 432 transitions, 4826 flow [2022-11-21 16:13:32,405 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=3020, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4826, PETRI_PLACES=302, PETRI_TRANSITIONS=432} [2022-11-21 16:13:32,407 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 57 predicate places. [2022-11-21 16:13:32,407 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 432 transitions, 4826 flow [2022-11-21 16:13:32,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:13:32,408 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:13:32,408 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] [2022-11-21 16:13:32,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:13:32,409 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:13:32,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:13:32,409 INFO L85 PathProgramCache]: Analyzing trace with hash -77869031, now seen corresponding path program 5 times [2022-11-21 16:13:32,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:13:32,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403810608] [2022-11-21 16:13:32,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:13:32,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:13:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:34,762 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 16:13:34,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:13:34,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403810608] [2022-11-21 16:13:34,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403810608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:13:34,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:13:34,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:13:34,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780190179] [2022-11-21 16:13:34,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:13:34,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:13:34,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:13:34,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:13:34,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:13:34,766 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:13:34,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 432 transitions, 4826 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:13:34,768 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:13:34,768 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:13:34,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:13:38,388 INFO L130 PetriNetUnfolder]: 2208/4262 cut-off events. [2022-11-21 16:13:38,389 INFO L131 PetriNetUnfolder]: For 53952/53952 co-relation queries the response was YES. [2022-11-21 16:13:38,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27405 conditions, 4262 events. 2208/4262 cut-off events. For 53952/53952 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 25978 event pairs, 673 based on Foata normal form. 8/4233 useless extension candidates. Maximal degree in co-relation 27097. Up to 2178 conditions per place. [2022-11-21 16:13:38,448 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 269 selfloop transitions, 264 changer transitions 0/644 dead transitions. [2022-11-21 16:13:38,448 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 644 transitions, 8363 flow [2022-11-21 16:13:38,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:13:38,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:13:38,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2809 transitions. [2022-11-21 16:13:38,453 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5686234817813766 [2022-11-21 16:13:38,454 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2809 transitions. [2022-11-21 16:13:38,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2809 transitions. [2022-11-21 16:13:38,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:13:38,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2809 transitions. [2022-11-21 16:13:38,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.45) internal successors, (2809), 20 states have internal predecessors, (2809), 0 states have call successors, (0), 0 states 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 16:13:38,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:13:38,469 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:13:38,469 INFO L175 Difference]: Start difference. First operand has 302 places, 432 transitions, 4826 flow. Second operand 20 states and 2809 transitions. [2022-11-21 16:13:38,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 644 transitions, 8363 flow [2022-11-21 16:13:38,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 644 transitions, 8114 flow, removed 109 selfloop flow, removed 9 redundant places. [2022-11-21 16:13:38,777 INFO L231 Difference]: Finished difference. Result has 323 places, 526 transitions, 7413 flow [2022-11-21 16:13:38,778 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=4659, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=177, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=7413, PETRI_PLACES=323, PETRI_TRANSITIONS=526} [2022-11-21 16:13:38,778 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 78 predicate places. [2022-11-21 16:13:38,778 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 526 transitions, 7413 flow [2022-11-21 16:13:38,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:13:38,779 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:13:38,779 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] [2022-11-21 16:13:38,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:13:38,780 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:13:38,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:13:38,780 INFO L85 PathProgramCache]: Analyzing trace with hash 642267771, now seen corresponding path program 6 times [2022-11-21 16:13:38,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:13:38,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368996806] [2022-11-21 16:13:38,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:13:38,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:13:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:41,183 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 16:13:41,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:13:41,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368996806] [2022-11-21 16:13:41,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368996806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:13:41,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:13:41,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:13:41,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548435593] [2022-11-21 16:13:41,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:13:41,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:13:41,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:13:41,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:13:41,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:13:41,187 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:13:41,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 526 transitions, 7413 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:13:41,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:13:41,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:13:41,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:13:44,756 INFO L130 PetriNetUnfolder]: 2380/4574 cut-off events. [2022-11-21 16:13:44,757 INFO L131 PetriNetUnfolder]: For 73229/73229 co-relation queries the response was YES. [2022-11-21 16:13:44,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32588 conditions, 4574 events. 2380/4574 cut-off events. For 73229/73229 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 29357 event pairs, 114 based on Foata normal form. 8/4558 useless extension candidates. Maximal degree in co-relation 32270. Up to 2178 conditions per place. [2022-11-21 16:13:44,833 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 444 selfloop transitions, 216 changer transitions 0/771 dead transitions. [2022-11-21 16:13:44,833 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 771 transitions, 11724 flow [2022-11-21 16:13:44,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:13:44,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:13:44,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2823 transitions. [2022-11-21 16:13:44,838 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5714574898785425 [2022-11-21 16:13:44,838 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2823 transitions. [2022-11-21 16:13:44,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2823 transitions. [2022-11-21 16:13:44,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:13:44,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2823 transitions. [2022-11-21 16:13:44,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.15) internal successors, (2823), 20 states have internal predecessors, (2823), 0 states have call successors, (0), 0 states 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 16:13:44,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:13:44,853 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:13:44,854 INFO L175 Difference]: Start difference. First operand has 323 places, 526 transitions, 7413 flow. Second operand 20 states and 2823 transitions. [2022-11-21 16:13:44,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 771 transitions, 11724 flow [2022-11-21 16:13:45,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 771 transitions, 11187 flow, removed 209 selfloop flow, removed 10 redundant places. [2022-11-21 16:13:45,315 INFO L231 Difference]: Finished difference. Result has 338 places, 573 transitions, 8713 flow [2022-11-21 16:13:45,316 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=6986, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8713, PETRI_PLACES=338, PETRI_TRANSITIONS=573} [2022-11-21 16:13:45,317 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 93 predicate places. [2022-11-21 16:13:45,317 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 573 transitions, 8713 flow [2022-11-21 16:13:45,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:13:45,318 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:13:45,318 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] [2022-11-21 16:13:45,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:13:45,318 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:13:45,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:13:45,319 INFO L85 PathProgramCache]: Analyzing trace with hash 2111811, now seen corresponding path program 7 times [2022-11-21 16:13:45,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:13:45,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793963976] [2022-11-21 16:13:45,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:13:45,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:13:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:47,455 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 16:13:47,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:13:47,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793963976] [2022-11-21 16:13:47,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793963976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:13:47,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:13:47,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:13:47,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488193277] [2022-11-21 16:13:47,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:13:47,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:13:47,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:13:47,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:13:47,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:13:47,459 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:13:47,461 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 573 transitions, 8713 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:13:47,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:13:47,461 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:13:47,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:13:50,444 INFO L130 PetriNetUnfolder]: 2513/4851 cut-off events. [2022-11-21 16:13:50,445 INFO L131 PetriNetUnfolder]: For 94462/94462 co-relation queries the response was YES. [2022-11-21 16:13:50,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37352 conditions, 4851 events. 2513/4851 cut-off events. For 94462/94462 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 30735 event pairs, 839 based on Foata normal form. 8/4822 useless extension candidates. Maximal degree in co-relation 37031. Up to 2666 conditions per place. [2022-11-21 16:13:50,505 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 337 selfloop transitions, 316 changer transitions 0/764 dead transitions. [2022-11-21 16:13:50,505 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 764 transitions, 12413 flow [2022-11-21 16:13:50,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-21 16:13:50,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-21 16:13:50,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2415 transitions. [2022-11-21 16:13:50,509 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5751369373660395 [2022-11-21 16:13:50,510 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2415 transitions. [2022-11-21 16:13:50,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2415 transitions. [2022-11-21 16:13:50,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:13:50,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2415 transitions. [2022-11-21 16:13:50,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 142.05882352941177) internal successors, (2415), 17 states have internal predecessors, (2415), 0 states have call successors, (0), 0 states 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 16:13:50,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states 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 16:13:50,521 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states 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 16:13:50,521 INFO L175 Difference]: Start difference. First operand has 338 places, 573 transitions, 8713 flow. Second operand 17 states and 2415 transitions. [2022-11-21 16:13:50,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 764 transitions, 12413 flow [2022-11-21 16:13:50,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 764 transitions, 12119 flow, removed 72 selfloop flow, removed 12 redundant places. [2022-11-21 16:13:50,895 INFO L231 Difference]: Finished difference. Result has 352 places, 648 transitions, 11600 flow [2022-11-21 16:13:50,896 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=8460, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=244, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=11600, PETRI_PLACES=352, PETRI_TRANSITIONS=648} [2022-11-21 16:13:50,898 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 107 predicate places. [2022-11-21 16:13:50,898 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 648 transitions, 11600 flow [2022-11-21 16:13:50,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:13:50,899 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:13:50,899 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] [2022-11-21 16:13:50,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:13:50,900 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:13:50,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:13:50,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1359927783, now seen corresponding path program 8 times [2022-11-21 16:13:50,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:13:50,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992575756] [2022-11-21 16:13:50,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:13:50,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:13:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:52,814 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 16:13:52,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:13:52,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992575756] [2022-11-21 16:13:52,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992575756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:13:52,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:13:52,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:13:52,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422072069] [2022-11-21 16:13:52,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:13:52,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:13:52,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:13:52,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:13:52,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:13:52,818 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:13:52,820 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 648 transitions, 11600 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:13:52,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:13:52,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:13:52,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:13:56,795 INFO L130 PetriNetUnfolder]: 2587/5117 cut-off events. [2022-11-21 16:13:56,796 INFO L131 PetriNetUnfolder]: For 119829/119934 co-relation queries the response was YES. [2022-11-21 16:13:56,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41422 conditions, 5117 events. 2587/5117 cut-off events. For 119829/119934 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 33341 event pairs, 611 based on Foata normal form. 8/5083 useless extension candidates. Maximal degree in co-relation 41091. Up to 2407 conditions per place. [2022-11-21 16:13:56,996 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 484 selfloop transitions, 274 changer transitions 0/869 dead transitions. [2022-11-21 16:13:56,996 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 869 transitions, 15843 flow [2022-11-21 16:13:56,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:13:56,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:13:57,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2823 transitions. [2022-11-21 16:13:57,003 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5714574898785425 [2022-11-21 16:13:57,003 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2823 transitions. [2022-11-21 16:13:57,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2823 transitions. [2022-11-21 16:13:57,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:13:57,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2823 transitions. [2022-11-21 16:13:57,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.15) internal successors, (2823), 20 states have internal predecessors, (2823), 0 states have call successors, (0), 0 states 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 16:13:57,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:13:57,021 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:13:57,022 INFO L175 Difference]: Start difference. First operand has 352 places, 648 transitions, 11600 flow. Second operand 20 states and 2823 transitions. [2022-11-21 16:13:57,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 869 transitions, 15843 flow [2022-11-21 16:13:57,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 869 transitions, 15574 flow, removed 129 selfloop flow, removed 6 redundant places. [2022-11-21 16:13:57,492 INFO L231 Difference]: Finished difference. Result has 370 places, 678 transitions, 12983 flow [2022-11-21 16:13:57,492 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=11411, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=648, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=247, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=12983, PETRI_PLACES=370, PETRI_TRANSITIONS=678} [2022-11-21 16:13:57,492 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 125 predicate places. [2022-11-21 16:13:57,493 INFO L495 AbstractCegarLoop]: Abstraction has has 370 places, 678 transitions, 12983 flow [2022-11-21 16:13:57,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:13:57,493 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:13:57,493 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] [2022-11-21 16:13:57,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 16:13:57,494 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:13:57,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:13:57,494 INFO L85 PathProgramCache]: Analyzing trace with hash -184197447, now seen corresponding path program 9 times [2022-11-21 16:13:57,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:13:57,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620485044] [2022-11-21 16:13:57,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:13:57,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:13:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:13:59,494 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 16:13:59,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:13:59,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620485044] [2022-11-21 16:13:59,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620485044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:13:59,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:13:59,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:13:59,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513615140] [2022-11-21 16:13:59,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:13:59,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:13:59,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:13:59,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:13:59,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:13:59,499 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:13:59,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 678 transitions, 12983 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:13:59,501 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:13:59,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:13:59,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:14:02,922 INFO L130 PetriNetUnfolder]: 2864/5584 cut-off events. [2022-11-21 16:14:02,922 INFO L131 PetriNetUnfolder]: For 146264/146292 co-relation queries the response was YES. [2022-11-21 16:14:02,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48647 conditions, 5584 events. 2864/5584 cut-off events. For 146264/146292 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 37795 event pairs, 172 based on Foata normal form. 8/5560 useless extension candidates. Maximal degree in co-relation 48311. Up to 3279 conditions per place. [2022-11-21 16:14:02,992 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 494 selfloop transitions, 317 changer transitions 0/922 dead transitions. [2022-11-21 16:14:02,992 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 922 transitions, 18508 flow [2022-11-21 16:14:02,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-21 16:14:02,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-21 16:14:02,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2551 transitions. [2022-11-21 16:14:02,996 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.573774179037337 [2022-11-21 16:14:02,997 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2551 transitions. [2022-11-21 16:14:02,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2551 transitions. [2022-11-21 16:14:02,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:14:02,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2551 transitions. [2022-11-21 16:14:03,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 141.72222222222223) internal successors, (2551), 18 states have internal predecessors, (2551), 0 states have call successors, (0), 0 states 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 16:14:03,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states 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 16:14:03,007 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states 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 16:14:03,007 INFO L175 Difference]: Start difference. First operand has 370 places, 678 transitions, 12983 flow. Second operand 18 states and 2551 transitions. [2022-11-21 16:14:03,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 922 transitions, 18508 flow [2022-11-21 16:14:03,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 922 transitions, 17980 flow, removed 39 selfloop flow, removed 12 redundant places. [2022-11-21 16:14:03,600 INFO L231 Difference]: Finished difference. Result has 382 places, 766 transitions, 16475 flow [2022-11-21 16:14:03,601 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=12529, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=678, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=16475, PETRI_PLACES=382, PETRI_TRANSITIONS=766} [2022-11-21 16:14:03,602 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 137 predicate places. [2022-11-21 16:14:03,602 INFO L495 AbstractCegarLoop]: Abstraction has has 382 places, 766 transitions, 16475 flow [2022-11-21 16:14:03,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:14:03,602 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:14:03,603 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] [2022-11-21 16:14:03,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 16:14:03,603 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:14:03,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:03,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1827479821, now seen corresponding path program 10 times [2022-11-21 16:14:03,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:03,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87817674] [2022-11-21 16:14:03,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:03,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:05,267 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 16:14:05,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:14:05,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87817674] [2022-11-21 16:14:05,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87817674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:14:05,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:14:05,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:14:05,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73753208] [2022-11-21 16:14:05,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:14:05,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:14:05,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:14:05,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:14:05,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:14:05,271 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:14:05,273 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 766 transitions, 16475 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:14:05,273 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:14:05,274 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:14:05,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:14:09,665 INFO L130 PetriNetUnfolder]: 3016/5826 cut-off events. [2022-11-21 16:14:09,665 INFO L131 PetriNetUnfolder]: For 172764/172764 co-relation queries the response was YES. [2022-11-21 16:14:09,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54755 conditions, 5826 events. 3016/5826 cut-off events. For 172764/172764 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 39644 event pairs, 211 based on Foata normal form. 8/5803 useless extension candidates. Maximal degree in co-relation 54412. Up to 3420 conditions per place. [2022-11-21 16:14:09,738 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 471 selfloop transitions, 372 changer transitions 0/954 dead transitions. [2022-11-21 16:14:09,738 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 954 transitions, 20681 flow [2022-11-21 16:14:09,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:14:09,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:14:09,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2814 transitions. [2022-11-21 16:14:09,742 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5696356275303643 [2022-11-21 16:14:09,742 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2814 transitions. [2022-11-21 16:14:09,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2814 transitions. [2022-11-21 16:14:09,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:14:09,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2814 transitions. [2022-11-21 16:14:09,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.7) internal successors, (2814), 20 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states 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 16:14:09,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:14:09,754 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:14:09,754 INFO L175 Difference]: Start difference. First operand has 382 places, 766 transitions, 16475 flow. Second operand 20 states and 2814 transitions. [2022-11-21 16:14:09,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 954 transitions, 20681 flow [2022-11-21 16:14:10,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 954 transitions, 20512 flow, removed 43 selfloop flow, removed 11 redundant places. [2022-11-21 16:14:10,527 INFO L231 Difference]: Finished difference. Result has 399 places, 824 transitions, 19576 flow [2022-11-21 16:14:10,528 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=16329, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=766, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=315, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=19576, PETRI_PLACES=399, PETRI_TRANSITIONS=824} [2022-11-21 16:14:10,528 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 154 predicate places. [2022-11-21 16:14:10,528 INFO L495 AbstractCegarLoop]: Abstraction has has 399 places, 824 transitions, 19576 flow [2022-11-21 16:14:10,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:14:10,528 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:14:10,529 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:14:10,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 16:14:10,529 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:14:10,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:10,529 INFO L85 PathProgramCache]: Analyzing trace with hash -2005297925, now seen corresponding path program 11 times [2022-11-21 16:14:10,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:10,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639200634] [2022-11-21 16:14:10,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:10,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:12,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:14:12,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:14:12,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639200634] [2022-11-21 16:14:12,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639200634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:14:12,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:14:12,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:14:12,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024179949] [2022-11-21 16:14:12,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:14:12,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:14:12,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:14:12,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:14:12,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:14:12,333 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:14:12,335 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 824 transitions, 19576 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:14:12,335 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:14:12,335 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:14:12,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:14:16,784 INFO L130 PetriNetUnfolder]: 3020/5922 cut-off events. [2022-11-21 16:14:16,784 INFO L131 PetriNetUnfolder]: For 215303/215415 co-relation queries the response was YES. [2022-11-21 16:14:16,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58730 conditions, 5922 events. 3020/5922 cut-off events. For 215303/215415 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 40344 event pairs, 548 based on Foata normal form. 8/5891 useless extension candidates. Maximal degree in co-relation 58378. Up to 2908 conditions per place. [2022-11-21 16:14:16,863 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 567 selfloop transitions, 359 changer transitions 0/1037 dead transitions. [2022-11-21 16:14:16,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 1037 transitions, 24124 flow [2022-11-21 16:14:16,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:14:16,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:14:16,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2821 transitions. [2022-11-21 16:14:16,868 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5710526315789474 [2022-11-21 16:14:16,868 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2821 transitions. [2022-11-21 16:14:16,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2821 transitions. [2022-11-21 16:14:16,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:14:16,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2821 transitions. [2022-11-21 16:14:16,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.05) internal successors, (2821), 20 states have internal predecessors, (2821), 0 states have call successors, (0), 0 states 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 16:14:16,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:14:16,879 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:14:16,880 INFO L175 Difference]: Start difference. First operand has 399 places, 824 transitions, 19576 flow. Second operand 20 states and 2821 transitions. [2022-11-21 16:14:16,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 1037 transitions, 24124 flow [2022-11-21 16:14:17,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 1037 transitions, 23773 flow, removed 127 selfloop flow, removed 10 redundant places. [2022-11-21 16:14:17,706 INFO L231 Difference]: Finished difference. Result has 412 places, 842 transitions, 20811 flow [2022-11-21 16:14:17,707 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=19254, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=824, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=344, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=472, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=20811, PETRI_PLACES=412, PETRI_TRANSITIONS=842} [2022-11-21 16:14:17,707 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 167 predicate places. [2022-11-21 16:14:17,708 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 842 transitions, 20811 flow [2022-11-21 16:14:17,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:14:17,708 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:14:17,708 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:14:17,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 16:14:17,708 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:14:17,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:17,709 INFO L85 PathProgramCache]: Analyzing trace with hash 376393705, now seen corresponding path program 12 times [2022-11-21 16:14:17,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:17,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119141205] [2022-11-21 16:14:17,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:17,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:19,112 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 16:14:19,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:14:19,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119141205] [2022-11-21 16:14:19,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119141205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:14:19,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:14:19,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:14:19,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078436047] [2022-11-21 16:14:19,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:14:19,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:14:19,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:14:19,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:14:19,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:14:19,117 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:14:19,119 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 842 transitions, 20811 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:14:19,119 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:14:19,119 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:14:19,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:14:24,215 INFO L130 PetriNetUnfolder]: 3229/6243 cut-off events. [2022-11-21 16:14:24,215 INFO L131 PetriNetUnfolder]: For 241182/241182 co-relation queries the response was YES. [2022-11-21 16:14:24,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65613 conditions, 6243 events. 3229/6243 cut-off events. For 241182/241182 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 43364 event pairs, 203 based on Foata normal form. 8/6220 useless extension candidates. Maximal degree in co-relation 65257. Up to 3632 conditions per place. [2022-11-21 16:14:24,296 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 510 selfloop transitions, 415 changer transitions 0/1036 dead transitions. [2022-11-21 16:14:24,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 1036 transitions, 26005 flow [2022-11-21 16:14:24,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-21 16:14:24,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-21 16:14:24,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2552 transitions. [2022-11-21 16:14:24,300 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5739991003148898 [2022-11-21 16:14:24,300 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2552 transitions. [2022-11-21 16:14:24,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2552 transitions. [2022-11-21 16:14:24,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:14:24,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2552 transitions. [2022-11-21 16:14:24,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 141.77777777777777) internal successors, (2552), 18 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states 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 16:14:24,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states 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 16:14:24,310 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states 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 16:14:24,310 INFO L175 Difference]: Start difference. First operand has 412 places, 842 transitions, 20811 flow. Second operand 18 states and 2552 transitions. [2022-11-21 16:14:24,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 1036 transitions, 26005 flow [2022-11-21 16:14:25,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 1036 transitions, 25768 flow, removed 20 selfloop flow, removed 14 redundant places. [2022-11-21 16:14:25,462 INFO L231 Difference]: Finished difference. Result has 423 places, 911 transitions, 24825 flow [2022-11-21 16:14:25,463 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=20592, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=842, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=350, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=24825, PETRI_PLACES=423, PETRI_TRANSITIONS=911} [2022-11-21 16:14:25,463 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 178 predicate places. [2022-11-21 16:14:25,463 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 911 transitions, 24825 flow [2022-11-21 16:14:25,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:14:25,464 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:14:25,464 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] [2022-11-21 16:14:25,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-21 16:14:25,465 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:14:25,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:25,465 INFO L85 PathProgramCache]: Analyzing trace with hash -204753985, now seen corresponding path program 13 times [2022-11-21 16:14:25,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:25,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556898058] [2022-11-21 16:14:25,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:25,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:27,268 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 16:14:27,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:14:27,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556898058] [2022-11-21 16:14:27,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556898058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:14:27,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:14:27,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:14:27,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66286207] [2022-11-21 16:14:27,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:14:27,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:14:27,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:14:27,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:14:27,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:14:27,273 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:14:27,275 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 911 transitions, 24825 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:14:27,275 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:14:27,275 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:14:27,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:14:32,513 INFO L130 PetriNetUnfolder]: 3416/6624 cut-off events. [2022-11-21 16:14:32,513 INFO L131 PetriNetUnfolder]: For 301655/301683 co-relation queries the response was YES. [2022-11-21 16:14:32,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73386 conditions, 6624 events. 3416/6624 cut-off events. For 301655/301683 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 46256 event pairs, 255 based on Foata normal form. 8/6600 useless extension candidates. Maximal degree in co-relation 73022. Up to 3849 conditions per place. [2022-11-21 16:14:32,608 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 585 selfloop transitions, 434 changer transitions 0/1130 dead transitions. [2022-11-21 16:14:32,608 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 1130 transitions, 30649 flow [2022-11-21 16:14:32,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:14:32,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:14:32,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2818 transitions. [2022-11-21 16:14:32,612 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5704453441295546 [2022-11-21 16:14:32,612 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2818 transitions. [2022-11-21 16:14:32,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2818 transitions. [2022-11-21 16:14:32,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:14:32,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2818 transitions. [2022-11-21 16:14:32,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.9) internal successors, (2818), 20 states have internal predecessors, (2818), 0 states have call successors, (0), 0 states 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 16:14:32,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:14:32,623 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:14:32,623 INFO L175 Difference]: Start difference. First operand has 423 places, 911 transitions, 24825 flow. Second operand 20 states and 2818 transitions. [2022-11-21 16:14:32,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 1130 transitions, 30649 flow [2022-11-21 16:14:34,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 1130 transitions, 30432 flow, removed 79 selfloop flow, removed 9 redundant places. [2022-11-21 16:14:34,097 INFO L231 Difference]: Finished difference. Result has 441 places, 977 transitions, 28484 flow [2022-11-21 16:14:34,098 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=24617, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=911, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=376, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=28484, PETRI_PLACES=441, PETRI_TRANSITIONS=977} [2022-11-21 16:14:34,098 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 196 predicate places. [2022-11-21 16:14:34,098 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 977 transitions, 28484 flow [2022-11-21 16:14:34,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:14:34,099 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:14:34,099 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] [2022-11-21 16:14:34,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-21 16:14:34,100 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:14:34,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:34,100 INFO L85 PathProgramCache]: Analyzing trace with hash 278243109, now seen corresponding path program 14 times [2022-11-21 16:14:34,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:34,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639866962] [2022-11-21 16:14:34,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:34,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:34,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:35,894 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 16:14:35,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:14:35,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639866962] [2022-11-21 16:14:35,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639866962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:14:35,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:14:35,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:14:35,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759281348] [2022-11-21 16:14:35,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:14:35,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:14:35,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:14:35,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:14:35,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:14:35,899 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:14:35,900 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 977 transitions, 28484 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:14:35,900 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:14:35,900 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:14:35,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:14:42,212 INFO L130 PetriNetUnfolder]: 3624/6938 cut-off events. [2022-11-21 16:14:42,212 INFO L131 PetriNetUnfolder]: For 365517/365559 co-relation queries the response was YES. [2022-11-21 16:14:42,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81928 conditions, 6938 events. 3624/6938 cut-off events. For 365517/365559 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 47841 event pairs, 723 based on Foata normal form. 8/6908 useless extension candidates. Maximal degree in co-relation 81556. Up to 3884 conditions per place. [2022-11-21 16:14:42,334 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 539 selfloop transitions, 548 changer transitions 0/1198 dead transitions. [2022-11-21 16:14:42,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 1198 transitions, 34950 flow [2022-11-21 16:14:42,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:14:42,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:14:42,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2814 transitions. [2022-11-21 16:14:42,339 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5696356275303643 [2022-11-21 16:14:42,339 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2814 transitions. [2022-11-21 16:14:42,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2814 transitions. [2022-11-21 16:14:42,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:14:42,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2814 transitions. [2022-11-21 16:14:42,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.7) internal successors, (2814), 20 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states 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 16:14:42,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:14:42,350 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:14:42,350 INFO L175 Difference]: Start difference. First operand has 441 places, 977 transitions, 28484 flow. Second operand 20 states and 2814 transitions. [2022-11-21 16:14:42,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 1198 transitions, 34950 flow [2022-11-21 16:14:44,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 1198 transitions, 34579 flow, removed 169 selfloop flow, removed 8 redundant places. [2022-11-21 16:14:44,539 INFO L231 Difference]: Finished difference. Result has 462 places, 1070 transitions, 33342 flow [2022-11-21 16:14:44,540 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=28113, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=977, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=459, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=33342, PETRI_PLACES=462, PETRI_TRANSITIONS=1070} [2022-11-21 16:14:44,540 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 217 predicate places. [2022-11-21 16:14:44,540 INFO L495 AbstractCegarLoop]: Abstraction has has 462 places, 1070 transitions, 33342 flow [2022-11-21 16:14:44,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:14:44,541 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:14:44,541 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] [2022-11-21 16:14:44,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-21 16:14:44,541 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:14:44,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:44,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1170721523, now seen corresponding path program 15 times [2022-11-21 16:14:44,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:44,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274566275] [2022-11-21 16:14:44,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:44,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:46,284 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 16:14:46,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:14:46,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274566275] [2022-11-21 16:14:46,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274566275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:14:46,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:14:46,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:14:46,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831262230] [2022-11-21 16:14:46,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:14:46,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:14:46,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:14:46,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:14:46,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:14:46,289 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:14:46,291 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 1070 transitions, 33342 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:14:46,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:14:46,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:14:46,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:14:52,928 INFO L130 PetriNetUnfolder]: 3824/7424 cut-off events. [2022-11-21 16:14:52,929 INFO L131 PetriNetUnfolder]: For 427784/427826 co-relation queries the response was YES. [2022-11-21 16:14:53,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90927 conditions, 7424 events. 3824/7424 cut-off events. For 427784/427826 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 52771 event pairs, 758 based on Foata normal form. 8/7393 useless extension candidates. Maximal degree in co-relation 90545. Up to 4419 conditions per place. [2022-11-21 16:14:53,066 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 669 selfloop transitions, 502 changer transitions 0/1282 dead transitions. [2022-11-21 16:14:53,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 1282 transitions, 39570 flow [2022-11-21 16:14:53,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:14:53,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:14:53,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2820 transitions. [2022-11-21 16:14:53,071 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5708502024291497 [2022-11-21 16:14:53,071 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2820 transitions. [2022-11-21 16:14:53,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2820 transitions. [2022-11-21 16:14:53,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:14:53,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2820 transitions. [2022-11-21 16:14:53,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.0) internal successors, (2820), 20 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states 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 16:14:53,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:14:53,080 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:14:53,080 INFO L175 Difference]: Start difference. First operand has 462 places, 1070 transitions, 33342 flow. Second operand 20 states and 2820 transitions. [2022-11-21 16:14:53,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 1282 transitions, 39570 flow [2022-11-21 16:14:55,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 1282 transitions, 39068 flow, removed 238 selfloop flow, removed 8 redundant places. [2022-11-21 16:14:55,651 INFO L231 Difference]: Finished difference. Result has 481 places, 1140 transitions, 37803 flow [2022-11-21 16:14:55,652 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=32846, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1070, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=439, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=37803, PETRI_PLACES=481, PETRI_TRANSITIONS=1140} [2022-11-21 16:14:55,653 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 236 predicate places. [2022-11-21 16:14:55,653 INFO L495 AbstractCegarLoop]: Abstraction has has 481 places, 1140 transitions, 37803 flow [2022-11-21 16:14:55,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:14:55,654 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:14:55,654 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] [2022-11-21 16:14:55,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-21 16:14:55,654 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:14:55,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:55,655 INFO L85 PathProgramCache]: Analyzing trace with hash -552331723, now seen corresponding path program 16 times [2022-11-21 16:14:55,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:55,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616449372] [2022-11-21 16:14:55,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:55,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:55,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:57,151 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 16:14:57,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:14:57,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616449372] [2022-11-21 16:14:57,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616449372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:14:57,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:14:57,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:14:57,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808887600] [2022-11-21 16:14:57,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:14:57,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:14:57,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:14:57,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:14:57,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:14:57,156 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:14:57,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 1140 transitions, 37803 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:14:57,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:14:57,158 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:14:57,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:15:03,246 INFO L130 PetriNetUnfolder]: 3870/7456 cut-off events. [2022-11-21 16:15:03,246 INFO L131 PetriNetUnfolder]: For 472700/472740 co-relation queries the response was YES. [2022-11-21 16:15:03,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95065 conditions, 7456 events. 3870/7456 cut-off events. For 472700/472740 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 53243 event pairs, 304 based on Foata normal form. 10/7434 useless extension candidates. Maximal degree in co-relation 94675. Up to 4479 conditions per place. [2022-11-21 16:15:03,386 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 676 selfloop transitions, 511 changer transitions 0/1298 dead transitions. [2022-11-21 16:15:03,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 1298 transitions, 42108 flow [2022-11-21 16:15:03,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-21 16:15:03,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-21 16:15:03,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2682 transitions. [2022-11-21 16:15:03,389 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.571489452375879 [2022-11-21 16:15:03,389 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2682 transitions. [2022-11-21 16:15:03,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2682 transitions. [2022-11-21 16:15:03,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:15:03,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2682 transitions. [2022-11-21 16:15:03,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 141.1578947368421) internal successors, (2682), 19 states have internal predecessors, (2682), 0 states have call successors, (0), 0 states 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 16:15:03,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states 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 16:15:03,395 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states 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 16:15:03,395 INFO L175 Difference]: Start difference. First operand has 481 places, 1140 transitions, 37803 flow. Second operand 19 states and 2682 transitions. [2022-11-21 16:15:03,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 1298 transitions, 42108 flow [2022-11-21 16:15:07,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 1298 transitions, 41782 flow, removed 116 selfloop flow, removed 11 redundant places. [2022-11-21 16:15:07,075 INFO L231 Difference]: Finished difference. Result has 494 places, 1162 transitions, 40245 flow [2022-11-21 16:15:07,076 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=37478, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=489, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=638, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=40245, PETRI_PLACES=494, PETRI_TRANSITIONS=1162} [2022-11-21 16:15:07,076 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 249 predicate places. [2022-11-21 16:15:07,077 INFO L495 AbstractCegarLoop]: Abstraction has has 494 places, 1162 transitions, 40245 flow [2022-11-21 16:15:07,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:15:07,077 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:15:07,077 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] [2022-11-21 16:15:07,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-21 16:15:07,077 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:15:07,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:15:07,078 INFO L85 PathProgramCache]: Analyzing trace with hash -2139699867, now seen corresponding path program 17 times [2022-11-21 16:15:07,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:15:07,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523223812] [2022-11-21 16:15:07,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:15:07,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:15:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:08,490 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 16:15:08,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:15:08,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523223812] [2022-11-21 16:15:08,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523223812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:15:08,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:15:08,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:15:08,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93150461] [2022-11-21 16:15:08,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:15:08,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:15:08,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:15:08,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:15:08,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:15:08,495 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:15:08,496 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 494 places, 1162 transitions, 40245 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:15:08,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:15:08,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:15:08,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:15:15,076 INFO L130 PetriNetUnfolder]: 3931/7585 cut-off events. [2022-11-21 16:15:15,076 INFO L131 PetriNetUnfolder]: For 520140/520154 co-relation queries the response was YES. [2022-11-21 16:15:15,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99810 conditions, 7585 events. 3931/7585 cut-off events. For 520140/520154 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 54951 event pairs, 226 based on Foata normal form. 14/7572 useless extension candidates. Maximal degree in co-relation 99414. Up to 4541 conditions per place. [2022-11-21 16:15:15,240 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 686 selfloop transitions, 537 changer transitions 0/1334 dead transitions. [2022-11-21 16:15:15,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 513 places, 1334 transitions, 45014 flow [2022-11-21 16:15:15,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:15:15,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:15:15,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2818 transitions. [2022-11-21 16:15:15,244 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5704453441295546 [2022-11-21 16:15:15,244 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2818 transitions. [2022-11-21 16:15:15,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2818 transitions. [2022-11-21 16:15:15,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:15:15,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2818 transitions. [2022-11-21 16:15:15,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.9) internal successors, (2818), 20 states have internal predecessors, (2818), 0 states have call successors, (0), 0 states 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 16:15:15,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:15:15,251 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:15:15,252 INFO L175 Difference]: Start difference. First operand has 494 places, 1162 transitions, 40245 flow. Second operand 20 states and 2818 transitions. [2022-11-21 16:15:15,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 513 places, 1334 transitions, 45014 flow [2022-11-21 16:15:19,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 1334 transitions, 44716 flow, removed 77 selfloop flow, removed 11 redundant places. [2022-11-21 16:15:19,402 INFO L231 Difference]: Finished difference. Result has 509 places, 1193 transitions, 43467 flow [2022-11-21 16:15:19,403 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=39948, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=509, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=43467, PETRI_PLACES=509, PETRI_TRANSITIONS=1193} [2022-11-21 16:15:19,404 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 264 predicate places. [2022-11-21 16:15:19,404 INFO L495 AbstractCegarLoop]: Abstraction has has 509 places, 1193 transitions, 43467 flow [2022-11-21 16:15:19,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:15:19,404 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:15:19,405 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] [2022-11-21 16:15:19,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-21 16:15:19,405 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:15:19,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:15:19,406 INFO L85 PathProgramCache]: Analyzing trace with hash -2142384863, now seen corresponding path program 18 times [2022-11-21 16:15:19,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:15:19,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495169701] [2022-11-21 16:15:19,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:15:19,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:15:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:21,226 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 16:15:21,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:15:21,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495169701] [2022-11-21 16:15:21,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495169701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:15:21,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:15:21,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:15:21,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148002548] [2022-11-21 16:15:21,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:15:21,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:15:21,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:15:21,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:15:21,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:15:21,230 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:15:21,231 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 509 places, 1193 transitions, 43467 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:15:21,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:15:21,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:15:21,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:15:28,813 INFO L130 PetriNetUnfolder]: 3985/7675 cut-off events. [2022-11-21 16:15:28,813 INFO L131 PetriNetUnfolder]: For 572506/572520 co-relation queries the response was YES. [2022-11-21 16:15:28,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104746 conditions, 7675 events. 3985/7675 cut-off events. For 572506/572520 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 55682 event pairs, 230 based on Foata normal form. 14/7662 useless extension candidates. Maximal degree in co-relation 104343. Up to 4517 conditions per place. [2022-11-21 16:15:29,005 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 683 selfloop transitions, 559 changer transitions 0/1353 dead transitions. [2022-11-21 16:15:29,005 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 1353 transitions, 47742 flow [2022-11-21 16:15:29,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:15:29,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:15:29,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2818 transitions. [2022-11-21 16:15:29,009 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5704453441295546 [2022-11-21 16:15:29,009 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2818 transitions. [2022-11-21 16:15:29,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2818 transitions. [2022-11-21 16:15:29,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:15:29,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2818 transitions. [2022-11-21 16:15:29,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.9) internal successors, (2818), 20 states have internal predecessors, (2818), 0 states have call successors, (0), 0 states 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 16:15:29,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:15:29,031 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:15:29,031 INFO L175 Difference]: Start difference. First operand has 509 places, 1193 transitions, 43467 flow. Second operand 20 states and 2818 transitions. [2022-11-21 16:15:29,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 1353 transitions, 47742 flow [2022-11-21 16:15:34,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 1353 transitions, 47449 flow, removed 79 selfloop flow, removed 12 redundant places. [2022-11-21 16:15:34,549 INFO L231 Difference]: Finished difference. Result has 521 places, 1215 transitions, 45933 flow [2022-11-21 16:15:34,550 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=43175, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=540, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=643, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=45933, PETRI_PLACES=521, PETRI_TRANSITIONS=1215} [2022-11-21 16:15:34,550 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 276 predicate places. [2022-11-21 16:15:34,550 INFO L495 AbstractCegarLoop]: Abstraction has has 521 places, 1215 transitions, 45933 flow [2022-11-21 16:15:34,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:15:34,551 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:15:34,551 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] [2022-11-21 16:15:34,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-21 16:15:34,551 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:15:34,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:15:34,552 INFO L85 PathProgramCache]: Analyzing trace with hash -974224961, now seen corresponding path program 19 times [2022-11-21 16:15:34,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:15:34,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040650874] [2022-11-21 16:15:34,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:15:34,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:15:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:35,949 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 16:15:35,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:15:35,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040650874] [2022-11-21 16:15:35,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040650874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:15:35,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:15:35,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:15:35,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129632567] [2022-11-21 16:15:35,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:15:35,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:15:35,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:15:35,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:15:35,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:15:35,952 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:15:35,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 521 places, 1215 transitions, 45933 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:15:35,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:15:35,955 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:15:35,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:15:44,043 INFO L130 PetriNetUnfolder]: 4059/7846 cut-off events. [2022-11-21 16:15:44,043 INFO L131 PetriNetUnfolder]: For 635844/635888 co-relation queries the response was YES. [2022-11-21 16:15:44,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110011 conditions, 7846 events. 4059/7846 cut-off events. For 635844/635888 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 56544 event pairs, 810 based on Foata normal form. 10/7817 useless extension candidates. Maximal degree in co-relation 109603. Up to 4683 conditions per place. [2022-11-21 16:15:44,198 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 713 selfloop transitions, 553 changer transitions 0/1377 dead transitions. [2022-11-21 16:15:44,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 1377 transitions, 50679 flow [2022-11-21 16:15:44,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:15:44,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:15:44,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2817 transitions. [2022-11-21 16:15:44,203 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5702429149797571 [2022-11-21 16:15:44,203 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2817 transitions. [2022-11-21 16:15:44,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2817 transitions. [2022-11-21 16:15:44,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:15:44,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2817 transitions. [2022-11-21 16:15:44,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.85) internal successors, (2817), 20 states have internal predecessors, (2817), 0 states have call successors, (0), 0 states 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 16:15:44,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:15:44,211 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:15:44,211 INFO L175 Difference]: Start difference. First operand has 521 places, 1215 transitions, 45933 flow. Second operand 20 states and 2817 transitions. [2022-11-21 16:15:44,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 1377 transitions, 50679 flow [2022-11-21 16:15:48,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 1377 transitions, 50269 flow, removed 158 selfloop flow, removed 11 redundant places. [2022-11-21 16:15:48,991 INFO L231 Difference]: Finished difference. Result has 534 places, 1240 transitions, 48668 flow [2022-11-21 16:15:48,992 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=45539, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=531, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=675, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=48668, PETRI_PLACES=534, PETRI_TRANSITIONS=1240} [2022-11-21 16:15:48,993 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 289 predicate places. [2022-11-21 16:15:48,993 INFO L495 AbstractCegarLoop]: Abstraction has has 534 places, 1240 transitions, 48668 flow [2022-11-21 16:15:48,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:15:48,993 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:15:48,993 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] [2022-11-21 16:15:48,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-21 16:15:48,994 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:15:48,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:15:48,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1154976651, now seen corresponding path program 20 times [2022-11-21 16:15:48,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:15:48,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520699188] [2022-11-21 16:15:48,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:15:48,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:15:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:50,671 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 16:15:50,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:15:50,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520699188] [2022-11-21 16:15:50,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520699188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:15:50,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:15:50,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:15:50,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253804323] [2022-11-21 16:15:50,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:15:50,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:15:50,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:15:50,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:15:50,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:15:50,674 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:15:50,675 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 534 places, 1240 transitions, 48668 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:15:50,675 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:15:50,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:15:50,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:15:59,089 INFO L130 PetriNetUnfolder]: 4063/7825 cut-off events. [2022-11-21 16:15:59,089 INFO L131 PetriNetUnfolder]: For 678235/678249 co-relation queries the response was YES. [2022-11-21 16:15:59,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112949 conditions, 7825 events. 4063/7825 cut-off events. For 678235/678249 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 57041 event pairs, 238 based on Foata normal form. 14/7812 useless extension candidates. Maximal degree in co-relation 112536. Up to 4635 conditions per place. [2022-11-21 16:15:59,221 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 719 selfloop transitions, 573 changer transitions 0/1403 dead transitions. [2022-11-21 16:15:59,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 1403 transitions, 53430 flow [2022-11-21 16:15:59,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:15:59,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:15:59,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2821 transitions. [2022-11-21 16:15:59,225 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5710526315789474 [2022-11-21 16:15:59,225 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2821 transitions. [2022-11-21 16:15:59,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2821 transitions. [2022-11-21 16:15:59,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:15:59,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2821 transitions. [2022-11-21 16:15:59,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.05) internal successors, (2821), 20 states have internal predecessors, (2821), 0 states have call successors, (0), 0 states 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 16:15:59,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:15:59,234 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:15:59,234 INFO L175 Difference]: Start difference. First operand has 534 places, 1240 transitions, 48668 flow. Second operand 20 states and 2821 transitions. [2022-11-21 16:15:59,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 1403 transitions, 53430 flow [2022-11-21 16:16:04,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 541 places, 1403 transitions, 52896 flow, removed 200 selfloop flow, removed 12 redundant places. [2022-11-21 16:16:04,859 INFO L231 Difference]: Finished difference. Result has 546 places, 1267 transitions, 50907 flow [2022-11-21 16:16:04,860 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=48246, PETRI_DIFFERENCE_MINUEND_PLACES=522, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=549, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=678, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=50907, PETRI_PLACES=546, PETRI_TRANSITIONS=1267} [2022-11-21 16:16:04,860 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 301 predicate places. [2022-11-21 16:16:04,860 INFO L495 AbstractCegarLoop]: Abstraction has has 546 places, 1267 transitions, 50907 flow [2022-11-21 16:16:04,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:16:04,861 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:04,861 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] [2022-11-21 16:16:04,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-21 16:16:04,861 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:16:04,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:04,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1863344177, now seen corresponding path program 21 times [2022-11-21 16:16:04,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:04,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834089303] [2022-11-21 16:16:04,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:04,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:06,375 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 16:16:06,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:06,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834089303] [2022-11-21 16:16:06,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834089303] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:06,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:06,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:16:06,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722102640] [2022-11-21 16:16:06,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:06,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:16:06,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:06,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:16:06,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:16:06,378 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:16:06,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 1267 transitions, 50907 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:16:06,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:06,379 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:16:06,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:16:15,900 INFO L130 PetriNetUnfolder]: 4263/8176 cut-off events. [2022-11-21 16:16:15,900 INFO L131 PetriNetUnfolder]: For 746436/746450 co-relation queries the response was YES. [2022-11-21 16:16:16,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121072 conditions, 8176 events. 4263/8176 cut-off events. For 746436/746450 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 59934 event pairs, 500 based on Foata normal form. 11/8157 useless extension candidates. Maximal degree in co-relation 120654. Up to 4748 conditions per place. [2022-11-21 16:16:16,129 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 676 selfloop transitions, 672 changer transitions 0/1459 dead transitions. [2022-11-21 16:16:16,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 1459 transitions, 57572 flow [2022-11-21 16:16:16,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:16:16,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:16:16,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2822 transitions. [2022-11-21 16:16:16,133 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.571255060728745 [2022-11-21 16:16:16,133 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2822 transitions. [2022-11-21 16:16:16,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2822 transitions. [2022-11-21 16:16:16,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:16:16,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2822 transitions. [2022-11-21 16:16:16,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.1) internal successors, (2822), 20 states have internal predecessors, (2822), 0 states have call successors, (0), 0 states 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 16:16:16,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:16:16,143 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states 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 16:16:16,144 INFO L175 Difference]: Start difference. First operand has 546 places, 1267 transitions, 50907 flow. Second operand 20 states and 2822 transitions. [2022-11-21 16:16:16,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 1459 transitions, 57572 flow [2022-11-21 16:16:21,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 1459 transitions, 57210 flow, removed 83 selfloop flow, removed 12 redundant places. [2022-11-21 16:16:21,619 INFO L231 Difference]: Finished difference. Result has 562 places, 1340 transitions, 56226 flow [2022-11-21 16:16:21,620 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=50545, PETRI_DIFFERENCE_MINUEND_PLACES=534, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=606, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=645, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=56226, PETRI_PLACES=562, PETRI_TRANSITIONS=1340} [2022-11-21 16:16:21,620 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 317 predicate places. [2022-11-21 16:16:21,621 INFO L495 AbstractCegarLoop]: Abstraction has has 562 places, 1340 transitions, 56226 flow [2022-11-21 16:16:21,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:16:21,621 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:21,622 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:16:21,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-21 16:16:21,622 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:16:21,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:21,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1269489531, now seen corresponding path program 22 times [2022-11-21 16:16:21,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:21,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596921247] [2022-11-21 16:16:21,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:21,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:23,021 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 16:16:23,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:23,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596921247] [2022-11-21 16:16:23,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596921247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:23,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:23,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:16:23,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683703174] [2022-11-21 16:16:23,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:23,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:16:23,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:23,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:16:23,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:16:23,025 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:16:23,027 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 562 places, 1340 transitions, 56226 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:16:23,027 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:23,027 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:16:23,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:16:32,336 INFO L130 PetriNetUnfolder]: 4309/8208 cut-off events. [2022-11-21 16:16:32,336 INFO L131 PetriNetUnfolder]: For 820091/820131 co-relation queries the response was YES. [2022-11-21 16:16:32,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126173 conditions, 8208 events. 4309/8208 cut-off events. For 820091/820131 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 59033 event pairs, 834 based on Foata normal form. 8/8179 useless extension candidates. Maximal degree in co-relation 125746. Up to 4774 conditions per place. [2022-11-21 16:16:32,559 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 670 selfloop transitions, 696 changer transitions 0/1477 dead transitions. [2022-11-21 16:16:32,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 580 places, 1477 transitions, 60801 flow [2022-11-21 16:16:32,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-21 16:16:32,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-21 16:16:32,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2678 transitions. [2022-11-21 16:16:32,562 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5706371191135734 [2022-11-21 16:16:32,562 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2678 transitions. [2022-11-21 16:16:32,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2678 transitions. [2022-11-21 16:16:32,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:16:32,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2678 transitions. [2022-11-21 16:16:32,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 140.94736842105263) internal successors, (2678), 19 states have internal predecessors, (2678), 0 states have call successors, (0), 0 states 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 16:16:32,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states 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 16:16:32,568 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states 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 16:16:32,568 INFO L175 Difference]: Start difference. First operand has 562 places, 1340 transitions, 56226 flow. Second operand 19 states and 2678 transitions. [2022-11-21 16:16:32,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 580 places, 1477 transitions, 60801 flow [2022-11-21 16:16:38,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 571 places, 1477 transitions, 60199 flow, removed 204 selfloop flow, removed 9 redundant places. [2022-11-21 16:16:38,806 INFO L231 Difference]: Finished difference. Result has 577 places, 1362 transitions, 59137 flow [2022-11-21 16:16:38,807 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=55654, PETRI_DIFFERENCE_MINUEND_PLACES=553, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=674, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=653, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=59137, PETRI_PLACES=577, PETRI_TRANSITIONS=1362} [2022-11-21 16:16:38,808 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 332 predicate places. [2022-11-21 16:16:38,808 INFO L495 AbstractCegarLoop]: Abstraction has has 577 places, 1362 transitions, 59137 flow [2022-11-21 16:16:38,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:16:38,809 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:38,809 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] [2022-11-21 16:16:38,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-21 16:16:38,809 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:16:38,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:38,810 INFO L85 PathProgramCache]: Analyzing trace with hash -753173241, now seen corresponding path program 23 times [2022-11-21 16:16:38,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:38,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555803602] [2022-11-21 16:16:38,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:38,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:38,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:40,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:16:40,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:40,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555803602] [2022-11-21 16:16:40,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555803602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:40,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:40,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:16:40,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784284543] [2022-11-21 16:16:40,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:40,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:16:40,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:40,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:16:40,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:16:40,313 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:16:40,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 577 places, 1362 transitions, 59137 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:16:40,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:40,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:16:40,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:16:50,264 INFO L130 PetriNetUnfolder]: 4377/8344 cut-off events. [2022-11-21 16:16:50,264 INFO L131 PetriNetUnfolder]: For 890230/890270 co-relation queries the response was YES. [2022-11-21 16:16:50,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131845 conditions, 8344 events. 4377/8344 cut-off events. For 890230/890270 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 60261 event pairs, 848 based on Foata normal form. 8/8315 useless extension candidates. Maximal degree in co-relation 131412. Up to 4896 conditions per place. [2022-11-21 16:16:50,509 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 698 selfloop transitions, 698 changer transitions 0/1507 dead transitions. [2022-11-21 16:16:50,509 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 594 places, 1507 transitions, 64317 flow [2022-11-21 16:16:50,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-21 16:16:50,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-21 16:16:50,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2550 transitions. [2022-11-21 16:16:50,512 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.573549257759784 [2022-11-21 16:16:50,512 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2550 transitions. [2022-11-21 16:16:50,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2550 transitions. [2022-11-21 16:16:50,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:16:50,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2550 transitions. [2022-11-21 16:16:50,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 141.66666666666666) internal successors, (2550), 18 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states 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 16:16:50,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states 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 16:16:50,519 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states 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 16:16:50,519 INFO L175 Difference]: Start difference. First operand has 577 places, 1362 transitions, 59137 flow. Second operand 18 states and 2550 transitions. [2022-11-21 16:16:50,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 594 places, 1507 transitions, 64317 flow [2022-11-21 16:16:56,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 584 places, 1507 transitions, 63969 flow, removed 63 selfloop flow, removed 10 redundant places. [2022-11-21 16:16:57,013 INFO L231 Difference]: Finished difference. Result has 590 places, 1393 transitions, 62865 flow [2022-11-21 16:16:57,014 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=58789, PETRI_DIFFERENCE_MINUEND_PLACES=567, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=667, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=677, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=62865, PETRI_PLACES=590, PETRI_TRANSITIONS=1393} [2022-11-21 16:16:57,014 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 345 predicate places. [2022-11-21 16:16:57,015 INFO L495 AbstractCegarLoop]: Abstraction has has 590 places, 1393 transitions, 62865 flow [2022-11-21 16:16:57,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:16:57,015 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:16:57,015 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] [2022-11-21 16:16:57,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-21 16:16:57,015 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:16:57,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:57,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1234635009, now seen corresponding path program 24 times [2022-11-21 16:16:57,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:57,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895614445] [2022-11-21 16:16:57,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:57,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:57,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:58,559 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 16:16:58,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:58,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895614445] [2022-11-21 16:16:58,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895614445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:58,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:58,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:16:58,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622308077] [2022-11-21 16:16:58,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:58,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:16:58,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:58,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:16:58,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:16:58,563 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:16:58,565 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 1393 transitions, 62865 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:16:58,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:16:58,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:16:58,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:09,164 INFO L130 PetriNetUnfolder]: 4486/8615 cut-off events. [2022-11-21 16:17:09,164 INFO L131 PetriNetUnfolder]: For 980435/980449 co-relation queries the response was YES. [2022-11-21 16:17:09,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139392 conditions, 8615 events. 4486/8615 cut-off events. For 980435/980449 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 64022 event pairs, 482 based on Foata normal form. 11/8596 useless extension candidates. Maximal degree in co-relation 138953. Up to 4980 conditions per place. [2022-11-21 16:17:09,432 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 711 selfloop transitions, 735 changer transitions 0/1557 dead transitions. [2022-11-21 16:17:09,432 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 608 places, 1557 transitions, 68985 flow [2022-11-21 16:17:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-21 16:17:09,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-21 16:17:09,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2688 transitions. [2022-11-21 16:17:09,435 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5727679522693373 [2022-11-21 16:17:09,435 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2688 transitions. [2022-11-21 16:17:09,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2688 transitions. [2022-11-21 16:17:09,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:09,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2688 transitions. [2022-11-21 16:17:09,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 141.47368421052633) internal successors, (2688), 19 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states 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 16:17:09,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states 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 16:17:09,444 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states 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 16:17:09,444 INFO L175 Difference]: Start difference. First operand has 590 places, 1393 transitions, 62865 flow. Second operand 19 states and 2688 transitions. [2022-11-21 16:17:09,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 608 places, 1557 transitions, 68985 flow [2022-11-21 16:17:17,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 598 places, 1557 transitions, 68624 flow, removed 42 selfloop flow, removed 10 redundant places. [2022-11-21 16:17:17,120 INFO L231 Difference]: Finished difference. Result has 603 places, 1434 transitions, 67249 flow [2022-11-21 16:17:17,121 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=62520, PETRI_DIFFERENCE_MINUEND_PLACES=580, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=696, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=683, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=67249, PETRI_PLACES=603, PETRI_TRANSITIONS=1434} [2022-11-21 16:17:17,122 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 358 predicate places. [2022-11-21 16:17:17,122 INFO L495 AbstractCegarLoop]: Abstraction has has 603 places, 1434 transitions, 67249 flow [2022-11-21 16:17:17,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:17:17,123 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:17,123 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] [2022-11-21 16:17:17,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-21 16:17:17,123 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-21 16:17:17,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:17,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1800847543, now seen corresponding path program 25 times [2022-11-21 16:17:17,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:17,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822100011] [2022-11-21 16:17:17,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:17,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:18,351 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 16:17:18,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:18,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822100011] [2022-11-21 16:17:18,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822100011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:18,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:18,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:17:18,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061152241] [2022-11-21 16:17:18,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:18,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:17:18,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:18,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:17:18,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:17:18,355 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-21 16:17:18,357 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 603 places, 1434 transitions, 67249 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 16:17:18,357 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:18,357 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-21 16:17:18,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand