./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_942651bc-a626-4f44-9820-503d5e27052c/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942651bc-a626-4f44-9820-503d5e27052c/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942651bc-a626-4f44-9820-503d5e27052c/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942651bc-a626-4f44-9820-503d5e27052c/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942651bc-a626-4f44-9820-503d5e27052c/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942651bc-a626-4f44-9820-503d5e27052c/bin/uautomizer-Dbtcem3rbc --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 c2150e0b957073117139b89f4d79d7a8523050efb20e53a1bf0b405c120dd6a7 --- 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-5e519f3 [2022-11-02 20:45:22,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:45:22,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:45:22,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:45:22,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:45:22,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:45:22,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:45:22,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:45:22,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:45:22,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:45:22,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:45:22,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:45:22,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:45:22,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:45:22,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:45:22,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:45:22,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:45:22,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:45:22,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:45:22,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:45:22,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:45:22,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:45:22,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:45:22,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:45:22,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:45:22,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:45:22,146 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:45:22,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:45:22,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:45:22,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:45:22,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:45:22,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:45:22,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:45:22,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:45:22,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:45:22,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:45:22,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:45:22,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:45:22,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:45:22,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:45:22,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:45:22,159 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942651bc-a626-4f44-9820-503d5e27052c/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:45:22,179 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:45:22,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:45:22,180 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:45:22,180 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:45:22,181 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:45:22,181 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:45:22,182 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:45:22,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:45:22,182 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:45:22,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:45:22,183 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:45:22,183 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:45:22,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:45:22,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:45:22,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:45:22,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:45:22,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:45:22,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:45:22,185 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:45:22,185 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:45:22,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:45:22,185 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:45:22,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:45:22,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:45:22,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:45:22,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:45:22,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:45:22,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:45:22,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:45:22,187 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:45:22,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:45:22,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:45:22,188 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:45:22,188 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:45:22,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:45:22,189 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_942651bc-a626-4f44-9820-503d5e27052c/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942651bc-a626-4f44-9820-503d5e27052c/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2150e0b957073117139b89f4d79d7a8523050efb20e53a1bf0b405c120dd6a7 [2022-11-02 20:45:22,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:45:22,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:45:22,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:45:22,542 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:45:22,544 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:45:22,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942651bc-a626-4f44-9820-503d5e27052c/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2022-11-02 20:45:22,626 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942651bc-a626-4f44-9820-503d5e27052c/bin/uautomizer-Dbtcem3rbc/data/71b0c0232/22061bc1ddfc4f7dbaf20d79e7ab45a9/FLAGb7e92bfab [2022-11-02 20:45:23,106 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:45:23,106 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942651bc-a626-4f44-9820-503d5e27052c/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2022-11-02 20:45:23,115 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942651bc-a626-4f44-9820-503d5e27052c/bin/uautomizer-Dbtcem3rbc/data/71b0c0232/22061bc1ddfc4f7dbaf20d79e7ab45a9/FLAGb7e92bfab [2022-11-02 20:45:23,473 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942651bc-a626-4f44-9820-503d5e27052c/bin/uautomizer-Dbtcem3rbc/data/71b0c0232/22061bc1ddfc4f7dbaf20d79e7ab45a9 [2022-11-02 20:45:23,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:45:23,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:45:23,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:45:23,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:45:23,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:45:23,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:45:23" (1/1) ... [2022-11-02 20:45:23,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e319d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:23, skipping insertion in model container [2022-11-02 20:45:23,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:45:23" (1/1) ... [2022-11-02 20:45:23,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:45:23,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:45:23,917 WARN L230 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_942651bc-a626-4f44-9820-503d5e27052c/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2022-11-02 20:45:23,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:45:23,941 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:45:23,981 WARN L230 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_942651bc-a626-4f44-9820-503d5e27052c/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2022-11-02 20:45:23,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:45:24,000 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:45:24,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:24 WrapperNode [2022-11-02 20:45:24,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:45:24,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:45:24,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:45:24,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:45:24,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:24" (1/1) ... [2022-11-02 20:45:24,023 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:24" (1/1) ... [2022-11-02 20:45:24,063 INFO L138 Inliner]: procedures = 26, calls = 75, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 641 [2022-11-02 20:45:24,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:45:24,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:45:24,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:45:24,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:45:24,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:24" (1/1) ... [2022-11-02 20:45:24,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:24" (1/1) ... [2022-11-02 20:45:24,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:24" (1/1) ... [2022-11-02 20:45:24,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:24" (1/1) ... [2022-11-02 20:45:24,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:24" (1/1) ... [2022-11-02 20:45:24,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:24" (1/1) ... [2022-11-02 20:45:24,131 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:24" (1/1) ... [2022-11-02 20:45:24,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:24" (1/1) ... [2022-11-02 20:45:24,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:45:24,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:45:24,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:45:24,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:45:24,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:24" (1/1) ... [2022-11-02 20:45:24,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:45:24,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942651bc-a626-4f44-9820-503d5e27052c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:24,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942651bc-a626-4f44-9820-503d5e27052c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:24,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942651bc-a626-4f44-9820-503d5e27052c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:45:24,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:45:24,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:45:24,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:45:24,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:45:24,251 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:45:24,253 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:45:24,253 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:45:24,254 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:45:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 20:45:24,254 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 20:45:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-02 20:45:24,255 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-02 20:45:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:45:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 20:45:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 20:45:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:45:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:45:24,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:45:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:45:24,259 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:45:24,418 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:45:24,420 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:45:25,401 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:45:26,013 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:45:26,013 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-02 20:45:26,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:45:26 BoogieIcfgContainer [2022-11-02 20:45:26,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:45:26,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:45:26,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:45:26,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:45:26,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:45:23" (1/3) ... [2022-11-02 20:45:26,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14479cd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:45:26, skipping insertion in model container [2022-11-02 20:45:26,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:24" (2/3) ... [2022-11-02 20:45:26,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14479cd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:45:26, skipping insertion in model container [2022-11-02 20:45:26,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:45:26" (3/3) ... [2022-11-02 20:45:26,030 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt2.wvr.c [2022-11-02 20:45:26,044 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:45:26,055 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:45:26,055 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 99 error locations. [2022-11-02 20:45:26,055 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:45:26,258 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-02 20:45:26,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 455 places, 465 transitions, 962 flow [2022-11-02 20:45:26,560 INFO L130 PetriNetUnfolder]: 23/461 cut-off events. [2022-11-02 20:45:26,560 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-02 20:45:26,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 461 events. 23/461 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 639 event pairs, 0 based on Foata normal form. 0/339 useless extension candidates. Maximal degree in co-relation 376. Up to 2 conditions per place. [2022-11-02 20:45:26,569 INFO L82 GeneralOperation]: Start removeDead. Operand has 455 places, 465 transitions, 962 flow [2022-11-02 20:45:26,603 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 430 places, 439 transitions, 902 flow [2022-11-02 20:45:26,611 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:45:26,618 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;@9602ab6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:45:26,618 INFO L358 AbstractCegarLoop]: Starting to check reachability of 173 error locations. [2022-11-02 20:45:26,623 INFO L130 PetriNetUnfolder]: 0/35 cut-off events. [2022-11-02 20:45:26,623 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:45:26,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:26,625 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:26,625 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:26,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:26,631 INFO L85 PathProgramCache]: Analyzing trace with hash -478683625, now seen corresponding path program 1 times [2022-11-02 20:45:26,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:26,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558102057] [2022-11-02 20:45:26,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:26,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:26,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:26,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:26,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:26,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558102057] [2022-11-02 20:45:26,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558102057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:26,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:26,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:26,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524773677] [2022-11-02 20:45:26,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:26,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:26,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:26,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:26,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:26,893 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 465 [2022-11-02 20:45:26,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 439 transitions, 902 flow. Second operand has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:26,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:26,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 465 [2022-11-02 20:45:26,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:27,540 INFO L130 PetriNetUnfolder]: 454/1232 cut-off events. [2022-11-02 20:45:27,541 INFO L131 PetriNetUnfolder]: For 162/233 co-relation queries the response was YES. [2022-11-02 20:45:27,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1977 conditions, 1232 events. 454/1232 cut-off events. For 162/233 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5225 event pairs, 272 based on Foata normal form. 184/1238 useless extension candidates. Maximal degree in co-relation 1540. Up to 618 conditions per place. [2022-11-02 20:45:27,555 INFO L137 encePairwiseOnDemand]: 380/465 looper letters, 29 selfloop transitions, 2 changer transitions 6/356 dead transitions. [2022-11-02 20:45:27,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 356 transitions, 798 flow [2022-11-02 20:45:27,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:27,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:27,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1161 transitions. [2022-11-02 20:45:27,581 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.832258064516129 [2022-11-02 20:45:27,581 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1161 transitions. [2022-11-02 20:45:27,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1161 transitions. [2022-11-02 20:45:27,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:27,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1161 transitions. [2022-11-02 20:45:27,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.0) internal successors, (1161), 3 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:27,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:27,611 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:27,613 INFO L175 Difference]: Start difference. First operand has 430 places, 439 transitions, 902 flow. Second operand 3 states and 1161 transitions. [2022-11-02 20:45:27,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 356 transitions, 798 flow [2022-11-02 20:45:27,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 356 transitions, 782 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-02 20:45:27,638 INFO L231 Difference]: Finished difference. Result has 353 places, 350 transitions, 712 flow [2022-11-02 20:45:27,643 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=712, PETRI_PLACES=353, PETRI_TRANSITIONS=350} [2022-11-02 20:45:27,648 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -77 predicate places. [2022-11-02 20:45:27,648 INFO L495 AbstractCegarLoop]: Abstraction has has 353 places, 350 transitions, 712 flow [2022-11-02 20:45:27,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:27,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:27,650 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:27,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:45:27,650 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:27,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:27,652 INFO L85 PathProgramCache]: Analyzing trace with hash -99763621, now seen corresponding path program 1 times [2022-11-02 20:45:27,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:27,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008506554] [2022-11-02 20:45:27,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:27,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:27,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:27,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:27,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008506554] [2022-11-02 20:45:27,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008506554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:27,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:27,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:27,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412741387] [2022-11-02 20:45:27,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:27,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:27,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:27,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:27,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:27,781 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 465 [2022-11-02 20:45:27,783 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 350 transitions, 712 flow. Second operand has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:27,809 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:27,810 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 465 [2022-11-02 20:45:27,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:28,294 INFO L130 PetriNetUnfolder]: 454/1225 cut-off events. [2022-11-02 20:45:28,294 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-02 20:45:28,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1889 conditions, 1225 events. 454/1225 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5232 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1846. Up to 618 conditions per place. [2022-11-02 20:45:28,304 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 29 selfloop transitions, 2 changer transitions 0/349 dead transitions. [2022-11-02 20:45:28,304 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 349 transitions, 772 flow [2022-11-02 20:45:28,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:28,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:28,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1079 transitions. [2022-11-02 20:45:28,307 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7734767025089606 [2022-11-02 20:45:28,308 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1079 transitions. [2022-11-02 20:45:28,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1079 transitions. [2022-11-02 20:45:28,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:28,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1079 transitions. [2022-11-02 20:45:28,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:28,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:28,316 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:28,316 INFO L175 Difference]: Start difference. First operand has 353 places, 350 transitions, 712 flow. Second operand 3 states and 1079 transitions. [2022-11-02 20:45:28,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 349 transitions, 772 flow [2022-11-02 20:45:28,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 349 transitions, 768 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:28,323 INFO L231 Difference]: Finished difference. Result has 346 places, 349 transitions, 710 flow [2022-11-02 20:45:28,324 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=710, PETRI_PLACES=346, PETRI_TRANSITIONS=349} [2022-11-02 20:45:28,325 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -84 predicate places. [2022-11-02 20:45:28,325 INFO L495 AbstractCegarLoop]: Abstraction has has 346 places, 349 transitions, 710 flow [2022-11-02 20:45:28,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:28,326 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:28,327 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:28,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:45:28,327 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:28,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:28,328 INFO L85 PathProgramCache]: Analyzing trace with hash 964529178, now seen corresponding path program 1 times [2022-11-02 20:45:28,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:28,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256513774] [2022-11-02 20:45:28,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:28,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:28,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:28,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:28,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256513774] [2022-11-02 20:45:28,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256513774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:28,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:28,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:28,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073865811] [2022-11-02 20:45:28,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:28,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:28,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:28,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:28,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:28,408 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 465 [2022-11-02 20:45:28,409 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 349 transitions, 710 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:28,409 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:28,410 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 465 [2022-11-02 20:45:28,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:28,883 INFO L130 PetriNetUnfolder]: 454/1224 cut-off events. [2022-11-02 20:45:28,883 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-02 20:45:28,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1885 conditions, 1224 events. 454/1224 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5218 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1835. Up to 615 conditions per place. [2022-11-02 20:45:28,893 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 26 selfloop transitions, 2 changer transitions 0/348 dead transitions. [2022-11-02 20:45:28,893 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 348 transitions, 764 flow [2022-11-02 20:45:28,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:28,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:28,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1085 transitions. [2022-11-02 20:45:28,897 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2022-11-02 20:45:28,897 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1085 transitions. [2022-11-02 20:45:28,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1085 transitions. [2022-11-02 20:45:28,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:28,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1085 transitions. [2022-11-02 20:45:28,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 361.6666666666667) internal successors, (1085), 3 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:28,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:28,905 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:28,905 INFO L175 Difference]: Start difference. First operand has 346 places, 349 transitions, 710 flow. Second operand 3 states and 1085 transitions. [2022-11-02 20:45:28,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 348 transitions, 764 flow [2022-11-02 20:45:28,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 348 transitions, 760 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:28,912 INFO L231 Difference]: Finished difference. Result has 345 places, 348 transitions, 708 flow [2022-11-02 20:45:28,913 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=708, PETRI_PLACES=345, PETRI_TRANSITIONS=348} [2022-11-02 20:45:28,913 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -85 predicate places. [2022-11-02 20:45:28,914 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 348 transitions, 708 flow [2022-11-02 20:45:28,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:28,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:28,915 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:28,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:45:28,915 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:28,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:28,916 INFO L85 PathProgramCache]: Analyzing trace with hash 364475388, now seen corresponding path program 1 times [2022-11-02 20:45:28,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:28,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329591088] [2022-11-02 20:45:28,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:28,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:28,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:28,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:28,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329591088] [2022-11-02 20:45:28,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329591088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:28,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:28,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:28,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784453152] [2022-11-02 20:45:28,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:28,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:28,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:28,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:28,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:28,971 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 465 [2022-11-02 20:45:28,972 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 348 transitions, 708 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:28,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:28,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 465 [2022-11-02 20:45:28,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:29,549 INFO L130 PetriNetUnfolder]: 454/1223 cut-off events. [2022-11-02 20:45:29,549 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-02 20:45:29,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1884 conditions, 1223 events. 454/1223 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5208 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1827. Up to 615 conditions per place. [2022-11-02 20:45:29,559 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 26 selfloop transitions, 2 changer transitions 0/347 dead transitions. [2022-11-02 20:45:29,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 347 transitions, 762 flow [2022-11-02 20:45:29,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:29,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:29,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1085 transitions. [2022-11-02 20:45:29,566 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2022-11-02 20:45:29,566 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1085 transitions. [2022-11-02 20:45:29,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1085 transitions. [2022-11-02 20:45:29,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:29,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1085 transitions. [2022-11-02 20:45:29,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 361.6666666666667) internal successors, (1085), 3 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:29,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:29,575 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:29,581 INFO L175 Difference]: Start difference. First operand has 345 places, 348 transitions, 708 flow. Second operand 3 states and 1085 transitions. [2022-11-02 20:45:29,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 347 transitions, 762 flow [2022-11-02 20:45:29,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 347 transitions, 758 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:29,588 INFO L231 Difference]: Finished difference. Result has 344 places, 347 transitions, 706 flow [2022-11-02 20:45:29,588 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=706, PETRI_PLACES=344, PETRI_TRANSITIONS=347} [2022-11-02 20:45:29,590 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -86 predicate places. [2022-11-02 20:45:29,590 INFO L495 AbstractCegarLoop]: Abstraction has has 344 places, 347 transitions, 706 flow [2022-11-02 20:45:29,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:29,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:29,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:29,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:45:29,592 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:29,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:29,592 INFO L85 PathProgramCache]: Analyzing trace with hash 306583187, now seen corresponding path program 1 times [2022-11-02 20:45:29,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:29,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521406317] [2022-11-02 20:45:29,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:29,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:29,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:29,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:29,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521406317] [2022-11-02 20:45:29,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521406317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:29,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:29,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:29,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226485668] [2022-11-02 20:45:29,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:29,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:29,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:29,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:29,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:29,687 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 465 [2022-11-02 20:45:29,688 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 347 transitions, 706 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:29,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:29,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 465 [2022-11-02 20:45:29,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:30,091 INFO L130 PetriNetUnfolder]: 454/1222 cut-off events. [2022-11-02 20:45:30,092 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-02 20:45:30,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1883 conditions, 1222 events. 454/1222 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5215 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1819. Up to 615 conditions per place. [2022-11-02 20:45:30,101 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 26 selfloop transitions, 2 changer transitions 0/346 dead transitions. [2022-11-02 20:45:30,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 346 transitions, 760 flow [2022-11-02 20:45:30,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:30,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:30,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1085 transitions. [2022-11-02 20:45:30,104 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2022-11-02 20:45:30,104 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1085 transitions. [2022-11-02 20:45:30,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1085 transitions. [2022-11-02 20:45:30,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:30,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1085 transitions. [2022-11-02 20:45:30,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 361.6666666666667) internal successors, (1085), 3 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:30,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:30,112 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:30,112 INFO L175 Difference]: Start difference. First operand has 344 places, 347 transitions, 706 flow. Second operand 3 states and 1085 transitions. [2022-11-02 20:45:30,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 346 transitions, 760 flow [2022-11-02 20:45:30,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 346 transitions, 756 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:30,119 INFO L231 Difference]: Finished difference. Result has 343 places, 346 transitions, 704 flow [2022-11-02 20:45:30,119 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=704, PETRI_PLACES=343, PETRI_TRANSITIONS=346} [2022-11-02 20:45:30,120 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -87 predicate places. [2022-11-02 20:45:30,120 INFO L495 AbstractCegarLoop]: Abstraction has has 343 places, 346 transitions, 704 flow [2022-11-02 20:45:30,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:30,121 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:30,121 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:30,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:45:30,122 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:30,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:30,122 INFO L85 PathProgramCache]: Analyzing trace with hash -741308157, now seen corresponding path program 1 times [2022-11-02 20:45:30,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:30,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532785839] [2022-11-02 20:45:30,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:30,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:30,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:30,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:30,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532785839] [2022-11-02 20:45:30,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532785839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:30,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:30,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:30,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469922967] [2022-11-02 20:45:30,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:30,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:30,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:30,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:30,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:30,197 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 465 [2022-11-02 20:45:30,200 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 346 transitions, 704 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:30,200 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:30,200 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 465 [2022-11-02 20:45:30,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:30,613 INFO L130 PetriNetUnfolder]: 454/1221 cut-off events. [2022-11-02 20:45:30,613 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-02 20:45:30,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1882 conditions, 1221 events. 454/1221 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5230 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1811. Up to 615 conditions per place. [2022-11-02 20:45:30,622 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 26 selfloop transitions, 2 changer transitions 0/345 dead transitions. [2022-11-02 20:45:30,623 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 345 transitions, 758 flow [2022-11-02 20:45:30,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:30,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:30,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1085 transitions. [2022-11-02 20:45:30,626 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2022-11-02 20:45:30,626 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1085 transitions. [2022-11-02 20:45:30,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1085 transitions. [2022-11-02 20:45:30,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:30,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1085 transitions. [2022-11-02 20:45:30,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 361.6666666666667) internal successors, (1085), 3 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:30,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:30,633 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:30,634 INFO L175 Difference]: Start difference. First operand has 343 places, 346 transitions, 704 flow. Second operand 3 states and 1085 transitions. [2022-11-02 20:45:30,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 345 transitions, 758 flow [2022-11-02 20:45:30,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 345 transitions, 754 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:30,643 INFO L231 Difference]: Finished difference. Result has 342 places, 345 transitions, 702 flow [2022-11-02 20:45:30,644 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=702, PETRI_PLACES=342, PETRI_TRANSITIONS=345} [2022-11-02 20:45:30,646 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -88 predicate places. [2022-11-02 20:45:30,646 INFO L495 AbstractCegarLoop]: Abstraction has has 342 places, 345 transitions, 702 flow [2022-11-02 20:45:30,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:30,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:30,648 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:30,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:45:30,649 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:30,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:30,650 INFO L85 PathProgramCache]: Analyzing trace with hash -2146365794, now seen corresponding path program 1 times [2022-11-02 20:45:30,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:30,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682700132] [2022-11-02 20:45:30,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:30,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:30,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:30,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:30,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682700132] [2022-11-02 20:45:30,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682700132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:30,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:30,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:30,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319554590] [2022-11-02 20:45:30,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:30,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:30,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:30,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:30,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:30,705 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 465 [2022-11-02 20:45:30,706 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 345 transitions, 702 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:30,706 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:30,706 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 465 [2022-11-02 20:45:30,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:31,140 INFO L130 PetriNetUnfolder]: 454/1220 cut-off events. [2022-11-02 20:45:31,140 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-02 20:45:31,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1881 conditions, 1220 events. 454/1220 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5202 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1803. Up to 615 conditions per place. [2022-11-02 20:45:31,151 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 26 selfloop transitions, 2 changer transitions 0/344 dead transitions. [2022-11-02 20:45:31,151 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 344 transitions, 756 flow [2022-11-02 20:45:31,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:31,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:31,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1085 transitions. [2022-11-02 20:45:31,155 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2022-11-02 20:45:31,155 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1085 transitions. [2022-11-02 20:45:31,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1085 transitions. [2022-11-02 20:45:31,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:31,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1085 transitions. [2022-11-02 20:45:31,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 361.6666666666667) internal successors, (1085), 3 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:31,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:31,163 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:31,164 INFO L175 Difference]: Start difference. First operand has 342 places, 345 transitions, 702 flow. Second operand 3 states and 1085 transitions. [2022-11-02 20:45:31,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 344 transitions, 756 flow [2022-11-02 20:45:31,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 344 transitions, 752 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:31,172 INFO L231 Difference]: Finished difference. Result has 341 places, 344 transitions, 700 flow [2022-11-02 20:45:31,173 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=700, PETRI_PLACES=341, PETRI_TRANSITIONS=344} [2022-11-02 20:45:31,173 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -89 predicate places. [2022-11-02 20:45:31,173 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 344 transitions, 700 flow [2022-11-02 20:45:31,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:31,174 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:31,174 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:31,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:45:31,175 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:31,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:31,176 INFO L85 PathProgramCache]: Analyzing trace with hash -688006266, now seen corresponding path program 1 times [2022-11-02 20:45:31,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:31,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902520180] [2022-11-02 20:45:31,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:31,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:31,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:31,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:31,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902520180] [2022-11-02 20:45:31,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902520180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:31,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:31,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:31,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373866022] [2022-11-02 20:45:31,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:31,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:31,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:31,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:31,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:31,233 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 465 [2022-11-02 20:45:31,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 344 transitions, 700 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:31,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:31,235 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 465 [2022-11-02 20:45:31,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:31,695 INFO L130 PetriNetUnfolder]: 454/1219 cut-off events. [2022-11-02 20:45:31,696 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-02 20:45:31,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1880 conditions, 1219 events. 454/1219 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5204 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1795. Up to 615 conditions per place. [2022-11-02 20:45:31,704 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 26 selfloop transitions, 2 changer transitions 0/343 dead transitions. [2022-11-02 20:45:31,705 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 343 transitions, 754 flow [2022-11-02 20:45:31,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:31,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:31,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1085 transitions. [2022-11-02 20:45:31,708 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2022-11-02 20:45:31,708 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1085 transitions. [2022-11-02 20:45:31,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1085 transitions. [2022-11-02 20:45:31,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:31,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1085 transitions. [2022-11-02 20:45:31,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 361.6666666666667) internal successors, (1085), 3 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:31,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:31,714 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:31,715 INFO L175 Difference]: Start difference. First operand has 341 places, 344 transitions, 700 flow. Second operand 3 states and 1085 transitions. [2022-11-02 20:45:31,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 343 transitions, 754 flow [2022-11-02 20:45:31,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 343 transitions, 750 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:31,721 INFO L231 Difference]: Finished difference. Result has 340 places, 343 transitions, 698 flow [2022-11-02 20:45:31,722 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=698, PETRI_PLACES=340, PETRI_TRANSITIONS=343} [2022-11-02 20:45:31,722 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -90 predicate places. [2022-11-02 20:45:31,723 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 343 transitions, 698 flow [2022-11-02 20:45:31,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:31,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:31,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:31,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:45:31,724 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:31,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:31,725 INFO L85 PathProgramCache]: Analyzing trace with hash -951829221, now seen corresponding path program 1 times [2022-11-02 20:45:31,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:31,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954439900] [2022-11-02 20:45:31,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:31,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:31,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:31,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:31,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954439900] [2022-11-02 20:45:31,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954439900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:31,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:31,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:31,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958635378] [2022-11-02 20:45:31,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:31,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:31,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:31,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:31,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:31,773 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 465 [2022-11-02 20:45:31,774 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 343 transitions, 698 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:31,774 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:31,774 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 465 [2022-11-02 20:45:31,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:32,110 INFO L130 PetriNetUnfolder]: 454/1218 cut-off events. [2022-11-02 20:45:32,110 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-02 20:45:32,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1879 conditions, 1218 events. 454/1218 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5190 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1787. Up to 615 conditions per place. [2022-11-02 20:45:32,121 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 26 selfloop transitions, 2 changer transitions 0/342 dead transitions. [2022-11-02 20:45:32,121 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 342 transitions, 752 flow [2022-11-02 20:45:32,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:32,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:32,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1085 transitions. [2022-11-02 20:45:32,124 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2022-11-02 20:45:32,124 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1085 transitions. [2022-11-02 20:45:32,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1085 transitions. [2022-11-02 20:45:32,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:32,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1085 transitions. [2022-11-02 20:45:32,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 361.6666666666667) internal successors, (1085), 3 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:32,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:32,131 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:32,131 INFO L175 Difference]: Start difference. First operand has 340 places, 343 transitions, 698 flow. Second operand 3 states and 1085 transitions. [2022-11-02 20:45:32,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 342 transitions, 752 flow [2022-11-02 20:45:32,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 342 transitions, 748 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:32,138 INFO L231 Difference]: Finished difference. Result has 339 places, 342 transitions, 696 flow [2022-11-02 20:45:32,139 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=696, PETRI_PLACES=339, PETRI_TRANSITIONS=342} [2022-11-02 20:45:32,140 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -91 predicate places. [2022-11-02 20:45:32,140 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 342 transitions, 696 flow [2022-11-02 20:45:32,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:32,141 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:32,141 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:32,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:45:32,142 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:32,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:32,142 INFO L85 PathProgramCache]: Analyzing trace with hash -445214302, now seen corresponding path program 1 times [2022-11-02 20:45:32,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:32,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234060870] [2022-11-02 20:45:32,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:32,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:32,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:32,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:32,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234060870] [2022-11-02 20:45:32,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234060870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:32,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:32,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:32,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832090998] [2022-11-02 20:45:32,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:32,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:32,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:32,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:32,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:32,187 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 465 [2022-11-02 20:45:32,188 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 342 transitions, 696 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:32,188 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:32,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 465 [2022-11-02 20:45:32,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:32,556 INFO L130 PetriNetUnfolder]: 454/1217 cut-off events. [2022-11-02 20:45:32,556 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-02 20:45:32,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1874 conditions, 1217 events. 454/1217 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5201 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1774. Up to 610 conditions per place. [2022-11-02 20:45:32,565 INFO L137 encePairwiseOnDemand]: 463/465 looper letters, 23 selfloop transitions, 1 changer transitions 0/341 dead transitions. [2022-11-02 20:45:32,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 341 transitions, 742 flow [2022-11-02 20:45:32,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:32,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:32,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1090 transitions. [2022-11-02 20:45:32,570 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7813620071684588 [2022-11-02 20:45:32,570 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1090 transitions. [2022-11-02 20:45:32,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1090 transitions. [2022-11-02 20:45:32,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:32,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1090 transitions. [2022-11-02 20:45:32,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:32,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:32,579 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:32,579 INFO L175 Difference]: Start difference. First operand has 339 places, 342 transitions, 696 flow. Second operand 3 states and 1090 transitions. [2022-11-02 20:45:32,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 341 transitions, 742 flow [2022-11-02 20:45:32,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 341 transitions, 738 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:32,586 INFO L231 Difference]: Finished difference. Result has 338 places, 341 transitions, 692 flow [2022-11-02 20:45:32,587 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=692, PETRI_PLACES=338, PETRI_TRANSITIONS=341} [2022-11-02 20:45:32,587 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -92 predicate places. [2022-11-02 20:45:32,587 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 341 transitions, 692 flow [2022-11-02 20:45:32,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:32,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:32,589 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:32,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:45:32,589 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:32,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:32,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1832068738, now seen corresponding path program 1 times [2022-11-02 20:45:32,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:32,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86177891] [2022-11-02 20:45:32,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:32,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:32,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:32,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:32,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86177891] [2022-11-02 20:45:32,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86177891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:32,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:32,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:32,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080938677] [2022-11-02 20:45:32,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:32,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:32,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:32,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:32,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:32,682 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 465 [2022-11-02 20:45:32,698 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 341 transitions, 692 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:32,699 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:32,699 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 465 [2022-11-02 20:45:32,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:33,012 INFO L130 PetriNetUnfolder]: 454/1216 cut-off events. [2022-11-02 20:45:33,013 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-02 20:45:33,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1873 conditions, 1216 events. 454/1216 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5210 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1774. Up to 612 conditions per place. [2022-11-02 20:45:33,020 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 23 selfloop transitions, 2 changer transitions 0/340 dead transitions. [2022-11-02 20:45:33,020 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 340 transitions, 740 flow [2022-11-02 20:45:33,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:33,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:33,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1091 transitions. [2022-11-02 20:45:33,023 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.782078853046595 [2022-11-02 20:45:33,024 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1091 transitions. [2022-11-02 20:45:33,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1091 transitions. [2022-11-02 20:45:33,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:33,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1091 transitions. [2022-11-02 20:45:33,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 363.6666666666667) internal successors, (1091), 3 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:33,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:33,030 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:33,031 INFO L175 Difference]: Start difference. First operand has 338 places, 341 transitions, 692 flow. Second operand 3 states and 1091 transitions. [2022-11-02 20:45:33,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 340 transitions, 740 flow [2022-11-02 20:45:33,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 340 transitions, 739 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:45:33,036 INFO L231 Difference]: Finished difference. Result has 338 places, 340 transitions, 693 flow [2022-11-02 20:45:33,037 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=693, PETRI_PLACES=338, PETRI_TRANSITIONS=340} [2022-11-02 20:45:33,037 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -92 predicate places. [2022-11-02 20:45:33,038 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 340 transitions, 693 flow [2022-11-02 20:45:33,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:33,038 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:33,038 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:33,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:45:33,039 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:33,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:33,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1310212640, now seen corresponding path program 1 times [2022-11-02 20:45:33,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:33,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170265801] [2022-11-02 20:45:33,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:33,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:33,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:33,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:33,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170265801] [2022-11-02 20:45:33,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170265801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:33,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:33,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:45:33,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566523316] [2022-11-02 20:45:33,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:33,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:45:33,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:33,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:45:33,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:45:33,575 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 465 [2022-11-02 20:45:33,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 340 transitions, 693 flow. Second operand has 6 states, 6 states have (on average 304.8333333333333) internal successors, (1829), 6 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:33,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:33,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 465 [2022-11-02 20:45:33,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:35,211 INFO L130 PetriNetUnfolder]: 3010/4626 cut-off events. [2022-11-02 20:45:35,211 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:45:35,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8588 conditions, 4626 events. 3010/4626 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 20188 event pairs, 1976 based on Foata normal form. 0/4346 useless extension candidates. Maximal degree in co-relation 8490. Up to 3907 conditions per place. [2022-11-02 20:45:35,252 INFO L137 encePairwiseOnDemand]: 453/465 looper letters, 66 selfloop transitions, 10 changer transitions 0/338 dead transitions. [2022-11-02 20:45:35,252 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 338 transitions, 841 flow [2022-11-02 20:45:35,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:45:35,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:45:35,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1896 transitions. [2022-11-02 20:45:35,258 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6795698924731183 [2022-11-02 20:45:35,258 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1896 transitions. [2022-11-02 20:45:35,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1896 transitions. [2022-11-02 20:45:35,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:35,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1896 transitions. [2022-11-02 20:45:35,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 316.0) internal successors, (1896), 6 states have internal predecessors, (1896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:35,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 465.0) internal successors, (3255), 7 states have internal predecessors, (3255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:35,273 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 465.0) internal successors, (3255), 7 states have internal predecessors, (3255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:35,273 INFO L175 Difference]: Start difference. First operand has 338 places, 340 transitions, 693 flow. Second operand 6 states and 1896 transitions. [2022-11-02 20:45:35,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 338 transitions, 841 flow [2022-11-02 20:45:35,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 338 transitions, 837 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:35,280 INFO L231 Difference]: Finished difference. Result has 339 places, 338 transitions, 705 flow [2022-11-02 20:45:35,281 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=685, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=705, PETRI_PLACES=339, PETRI_TRANSITIONS=338} [2022-11-02 20:45:35,285 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -91 predicate places. [2022-11-02 20:45:35,285 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 338 transitions, 705 flow [2022-11-02 20:45:35,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 304.8333333333333) internal successors, (1829), 6 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:35,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:35,286 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:35,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:45:35,287 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:35,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:35,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1226075615, now seen corresponding path program 1 times [2022-11-02 20:45:35,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:35,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284485082] [2022-11-02 20:45:35,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:35,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:35,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:35,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:35,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284485082] [2022-11-02 20:45:35,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284485082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:35,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:35,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:35,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636954983] [2022-11-02 20:45:35,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:35,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:35,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:35,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:35,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:35,362 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 465 [2022-11-02 20:45:35,364 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 338 transitions, 705 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:35,364 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:35,364 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 465 [2022-11-02 20:45:35,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:35,787 INFO L130 PetriNetUnfolder]: 454/1213 cut-off events. [2022-11-02 20:45:35,787 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-02 20:45:35,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1879 conditions, 1213 events. 454/1213 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5169 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1846. Up to 610 conditions per place. [2022-11-02 20:45:35,796 INFO L137 encePairwiseOnDemand]: 463/465 looper letters, 23 selfloop transitions, 1 changer transitions 0/337 dead transitions. [2022-11-02 20:45:35,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 337 transitions, 751 flow [2022-11-02 20:45:35,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:35,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:35,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1090 transitions. [2022-11-02 20:45:35,799 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7813620071684588 [2022-11-02 20:45:35,800 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1090 transitions. [2022-11-02 20:45:35,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1090 transitions. [2022-11-02 20:45:35,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:35,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1090 transitions. [2022-11-02 20:45:35,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:35,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:35,808 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:35,808 INFO L175 Difference]: Start difference. First operand has 339 places, 338 transitions, 705 flow. Second operand 3 states and 1090 transitions. [2022-11-02 20:45:35,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 337 transitions, 751 flow [2022-11-02 20:45:35,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 337 transitions, 731 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:45:35,815 INFO L231 Difference]: Finished difference. Result has 335 places, 337 transitions, 685 flow [2022-11-02 20:45:35,816 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=685, PETRI_PLACES=335, PETRI_TRANSITIONS=337} [2022-11-02 20:45:35,817 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -95 predicate places. [2022-11-02 20:45:35,817 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 337 transitions, 685 flow [2022-11-02 20:45:35,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:35,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:35,818 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:35,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:45:35,819 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:35,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:35,819 INFO L85 PathProgramCache]: Analyzing trace with hash 302779067, now seen corresponding path program 1 times [2022-11-02 20:45:35,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:35,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235668627] [2022-11-02 20:45:35,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:35,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:35,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:35,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:35,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235668627] [2022-11-02 20:45:35,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235668627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:35,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:35,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:35,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980928775] [2022-11-02 20:45:35,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:35,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:35,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:35,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:35,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:35,898 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 465 [2022-11-02 20:45:35,899 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 337 transitions, 685 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:35,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:35,900 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 465 [2022-11-02 20:45:35,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:36,236 INFO L130 PetriNetUnfolder]: 454/1212 cut-off events. [2022-11-02 20:45:36,236 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-02 20:45:36,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1870 conditions, 1212 events. 454/1212 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5180 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1771. Up to 612 conditions per place. [2022-11-02 20:45:36,245 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 23 selfloop transitions, 2 changer transitions 0/336 dead transitions. [2022-11-02 20:45:36,245 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 336 transitions, 733 flow [2022-11-02 20:45:36,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:36,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:36,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1091 transitions. [2022-11-02 20:45:36,249 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.782078853046595 [2022-11-02 20:45:36,249 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1091 transitions. [2022-11-02 20:45:36,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1091 transitions. [2022-11-02 20:45:36,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:36,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1091 transitions. [2022-11-02 20:45:36,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 363.6666666666667) internal successors, (1091), 3 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:36,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:36,256 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:36,256 INFO L175 Difference]: Start difference. First operand has 335 places, 337 transitions, 685 flow. Second operand 3 states and 1091 transitions. [2022-11-02 20:45:36,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 336 transitions, 733 flow [2022-11-02 20:45:36,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 336 transitions, 732 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:45:36,263 INFO L231 Difference]: Finished difference. Result has 335 places, 336 transitions, 686 flow [2022-11-02 20:45:36,264 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=686, PETRI_PLACES=335, PETRI_TRANSITIONS=336} [2022-11-02 20:45:36,265 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -95 predicate places. [2022-11-02 20:45:36,265 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 336 transitions, 686 flow [2022-11-02 20:45:36,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:36,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:36,266 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:36,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:45:36,267 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:36,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:36,267 INFO L85 PathProgramCache]: Analyzing trace with hash -961555895, now seen corresponding path program 1 times [2022-11-02 20:45:36,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:36,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690589862] [2022-11-02 20:45:36,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:36,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:36,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:36,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:36,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690589862] [2022-11-02 20:45:36,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690589862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:36,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:36,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:36,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183109548] [2022-11-02 20:45:36,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:36,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:36,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:36,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:36,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:36,483 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 465 [2022-11-02 20:45:36,485 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 336 transitions, 686 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:36,485 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:36,485 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 465 [2022-11-02 20:45:36,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:36,802 INFO L130 PetriNetUnfolder]: 454/1210 cut-off events. [2022-11-02 20:45:36,802 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-02 20:45:36,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1871 conditions, 1210 events. 454/1210 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5175 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1771. Up to 612 conditions per place. [2022-11-02 20:45:36,810 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 25 selfloop transitions, 1 changer transitions 0/334 dead transitions. [2022-11-02 20:45:36,811 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 334 transitions, 734 flow [2022-11-02 20:45:36,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:36,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:36,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1084 transitions. [2022-11-02 20:45:36,814 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7770609318996415 [2022-11-02 20:45:36,814 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1084 transitions. [2022-11-02 20:45:36,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1084 transitions. [2022-11-02 20:45:36,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:36,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1084 transitions. [2022-11-02 20:45:36,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 361.3333333333333) internal successors, (1084), 3 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:36,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:36,821 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:36,822 INFO L175 Difference]: Start difference. First operand has 335 places, 336 transitions, 686 flow. Second operand 3 states and 1084 transitions. [2022-11-02 20:45:36,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 334 transitions, 734 flow [2022-11-02 20:45:36,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 334 transitions, 730 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:36,828 INFO L231 Difference]: Finished difference. Result has 333 places, 334 transitions, 680 flow [2022-11-02 20:45:36,829 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=333, PETRI_TRANSITIONS=334} [2022-11-02 20:45:36,830 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -97 predicate places. [2022-11-02 20:45:36,830 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 334 transitions, 680 flow [2022-11-02 20:45:36,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:36,830 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:36,831 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:36,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:45:36,831 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:36,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:36,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1353725316, now seen corresponding path program 1 times [2022-11-02 20:45:36,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:36,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872448025] [2022-11-02 20:45:36,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:36,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:36,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:36,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:36,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872448025] [2022-11-02 20:45:36,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872448025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:36,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:36,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:36,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103651086] [2022-11-02 20:45:36,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:36,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:36,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:36,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:36,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:36,913 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 465 [2022-11-02 20:45:36,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 334 transitions, 680 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:36,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:36,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 465 [2022-11-02 20:45:36,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:37,236 INFO L130 PetriNetUnfolder]: 454/1209 cut-off events. [2022-11-02 20:45:37,237 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-02 20:45:37,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1867 conditions, 1209 events. 454/1209 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5161 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1767. Up to 610 conditions per place. [2022-11-02 20:45:37,245 INFO L137 encePairwiseOnDemand]: 463/465 looper letters, 23 selfloop transitions, 1 changer transitions 0/333 dead transitions. [2022-11-02 20:45:37,245 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 333 transitions, 726 flow [2022-11-02 20:45:37,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:37,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:37,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1090 transitions. [2022-11-02 20:45:37,249 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7813620071684588 [2022-11-02 20:45:37,249 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1090 transitions. [2022-11-02 20:45:37,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1090 transitions. [2022-11-02 20:45:37,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:37,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1090 transitions. [2022-11-02 20:45:37,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:37,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:37,255 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:37,256 INFO L175 Difference]: Start difference. First operand has 333 places, 334 transitions, 680 flow. Second operand 3 states and 1090 transitions. [2022-11-02 20:45:37,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 333 transitions, 726 flow [2022-11-02 20:45:37,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 333 transitions, 725 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:45:37,262 INFO L231 Difference]: Finished difference. Result has 333 places, 333 transitions, 679 flow [2022-11-02 20:45:37,263 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=679, PETRI_PLACES=333, PETRI_TRANSITIONS=333} [2022-11-02 20:45:37,263 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -97 predicate places. [2022-11-02 20:45:37,264 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 333 transitions, 679 flow [2022-11-02 20:45:37,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:37,265 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:37,265 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:37,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:45:37,265 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:37,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:37,267 INFO L85 PathProgramCache]: Analyzing trace with hash 445125427, now seen corresponding path program 1 times [2022-11-02 20:45:37,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:37,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816903045] [2022-11-02 20:45:37,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:37,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:37,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:37,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:37,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816903045] [2022-11-02 20:45:37,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816903045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:37,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:37,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:37,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625273152] [2022-11-02 20:45:37,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:37,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:37,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:37,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:37,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:37,347 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 465 [2022-11-02 20:45:37,348 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 333 transitions, 679 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:37,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:37,349 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 465 [2022-11-02 20:45:37,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:37,673 INFO L130 PetriNetUnfolder]: 454/1207 cut-off events. [2022-11-02 20:45:37,673 INFO L131 PetriNetUnfolder]: For 40/111 co-relation queries the response was YES. [2022-11-02 20:45:37,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1868 conditions, 1207 events. 454/1207 cut-off events. For 40/111 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5163 event pairs, 272 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1768. Up to 612 conditions per place. [2022-11-02 20:45:37,682 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 25 selfloop transitions, 1 changer transitions 0/331 dead transitions. [2022-11-02 20:45:37,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 331 transitions, 727 flow [2022-11-02 20:45:37,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:37,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:37,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1084 transitions. [2022-11-02 20:45:37,685 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7770609318996415 [2022-11-02 20:45:37,686 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1084 transitions. [2022-11-02 20:45:37,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1084 transitions. [2022-11-02 20:45:37,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:37,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1084 transitions. [2022-11-02 20:45:37,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 361.3333333333333) internal successors, (1084), 3 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:37,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:37,692 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:37,693 INFO L175 Difference]: Start difference. First operand has 333 places, 333 transitions, 679 flow. Second operand 3 states and 1084 transitions. [2022-11-02 20:45:37,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 331 transitions, 727 flow [2022-11-02 20:45:37,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 331 transitions, 726 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:45:37,700 INFO L231 Difference]: Finished difference. Result has 332 places, 331 transitions, 676 flow [2022-11-02 20:45:37,700 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=676, PETRI_PLACES=332, PETRI_TRANSITIONS=331} [2022-11-02 20:45:37,701 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -98 predicate places. [2022-11-02 20:45:37,701 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 331 transitions, 676 flow [2022-11-02 20:45:37,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:37,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:37,702 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:37,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 20:45:37,702 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:37,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:37,703 INFO L85 PathProgramCache]: Analyzing trace with hash 478304205, now seen corresponding path program 1 times [2022-11-02 20:45:37,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:37,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812601083] [2022-11-02 20:45:37,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:37,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:37,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:37,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:37,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812601083] [2022-11-02 20:45:37,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812601083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:37,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:37,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:37,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753315947] [2022-11-02 20:45:37,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:37,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:37,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:37,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:37,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:37,779 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 465 [2022-11-02 20:45:37,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 331 transitions, 676 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:37,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:37,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 465 [2022-11-02 20:45:37,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:38,416 INFO L130 PetriNetUnfolder]: 761/1951 cut-off events. [2022-11-02 20:45:38,417 INFO L131 PetriNetUnfolder]: For 68/190 co-relation queries the response was YES. [2022-11-02 20:45:38,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3061 conditions, 1951 events. 761/1951 cut-off events. For 68/190 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 10411 event pairs, 443 based on Foata normal form. 0/1681 useless extension candidates. Maximal degree in co-relation 2961. Up to 659 conditions per place. [2022-11-02 20:45:38,431 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 41 selfloop transitions, 2 changer transitions 0/349 dead transitions. [2022-11-02 20:45:38,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 349 transitions, 806 flow [2022-11-02 20:45:38,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:38,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:38,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1109 transitions. [2022-11-02 20:45:38,435 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7949820788530466 [2022-11-02 20:45:38,435 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1109 transitions. [2022-11-02 20:45:38,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1109 transitions. [2022-11-02 20:45:38,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:38,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1109 transitions. [2022-11-02 20:45:38,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 369.6666666666667) internal successors, (1109), 3 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:38,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:38,442 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:38,442 INFO L175 Difference]: Start difference. First operand has 332 places, 331 transitions, 676 flow. Second operand 3 states and 1109 transitions. [2022-11-02 20:45:38,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 349 transitions, 806 flow [2022-11-02 20:45:38,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 349 transitions, 805 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:45:38,450 INFO L231 Difference]: Finished difference. Result has 333 places, 331 transitions, 683 flow [2022-11-02 20:45:38,451 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=683, PETRI_PLACES=333, PETRI_TRANSITIONS=331} [2022-11-02 20:45:38,451 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -97 predicate places. [2022-11-02 20:45:38,451 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 331 transitions, 683 flow [2022-11-02 20:45:38,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:38,452 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:38,452 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:38,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 20:45:38,453 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:38,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:38,453 INFO L85 PathProgramCache]: Analyzing trace with hash 88902015, now seen corresponding path program 1 times [2022-11-02 20:45:38,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:38,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687095244] [2022-11-02 20:45:38,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:38,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:38,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:38,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:38,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687095244] [2022-11-02 20:45:38,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687095244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:38,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:38,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:38,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577326845] [2022-11-02 20:45:38,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:38,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:38,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:38,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:38,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:38,521 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 465 [2022-11-02 20:45:38,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 331 transitions, 683 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:38,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:38,523 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 465 [2022-11-02 20:45:38,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:39,548 INFO L130 PetriNetUnfolder]: 1158/3075 cut-off events. [2022-11-02 20:45:39,549 INFO L131 PetriNetUnfolder]: For 293/455 co-relation queries the response was YES. [2022-11-02 20:45:39,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4993 conditions, 3075 events. 1158/3075 cut-off events. For 293/455 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 20084 event pairs, 502 based on Foata normal form. 0/2647 useless extension candidates. Maximal degree in co-relation 4892. Up to 842 conditions per place. [2022-11-02 20:45:39,567 INFO L137 encePairwiseOnDemand]: 461/465 looper letters, 42 selfloop transitions, 4 changer transitions 0/351 dead transitions. [2022-11-02 20:45:39,568 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 351 transitions, 828 flow [2022-11-02 20:45:39,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:39,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:39,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1110 transitions. [2022-11-02 20:45:39,571 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7956989247311828 [2022-11-02 20:45:39,571 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1110 transitions. [2022-11-02 20:45:39,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1110 transitions. [2022-11-02 20:45:39,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:39,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1110 transitions. [2022-11-02 20:45:39,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 370.0) internal successors, (1110), 3 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:39,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:39,577 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:39,577 INFO L175 Difference]: Start difference. First operand has 333 places, 331 transitions, 683 flow. Second operand 3 states and 1110 transitions. [2022-11-02 20:45:39,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 351 transitions, 828 flow [2022-11-02 20:45:39,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 351 transitions, 825 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:45:39,586 INFO L231 Difference]: Finished difference. Result has 335 places, 333 transitions, 711 flow [2022-11-02 20:45:39,587 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=679, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=711, PETRI_PLACES=335, PETRI_TRANSITIONS=333} [2022-11-02 20:45:39,587 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -95 predicate places. [2022-11-02 20:45:39,587 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 333 transitions, 711 flow [2022-11-02 20:45:39,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:39,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:39,588 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:39,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 20:45:39,588 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:39,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:39,589 INFO L85 PathProgramCache]: Analyzing trace with hash 83781772, now seen corresponding path program 1 times [2022-11-02 20:45:39,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:39,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134858061] [2022-11-02 20:45:39,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:39,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:39,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:39,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:39,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134858061] [2022-11-02 20:45:39,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134858061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:39,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:39,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:39,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146708633] [2022-11-02 20:45:39,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:39,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:39,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:39,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:39,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:39,649 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 465 [2022-11-02 20:45:39,650 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 333 transitions, 711 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:39,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:39,651 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 465 [2022-11-02 20:45:39,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:41,228 INFO L130 PetriNetUnfolder]: 2007/5154 cut-off events. [2022-11-02 20:45:41,229 INFO L131 PetriNetUnfolder]: For 1875/2288 co-relation queries the response was YES. [2022-11-02 20:45:41,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9124 conditions, 5154 events. 2007/5154 cut-off events. For 1875/2288 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 39628 event pairs, 1125 based on Foata normal form. 0/4381 useless extension candidates. Maximal degree in co-relation 9022. Up to 1677 conditions per place. [2022-11-02 20:45:41,282 INFO L137 encePairwiseOnDemand]: 462/465 looper letters, 49 selfloop transitions, 2 changer transitions 0/355 dead transitions. [2022-11-02 20:45:41,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 355 transitions, 891 flow [2022-11-02 20:45:41,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:41,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:41,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1109 transitions. [2022-11-02 20:45:41,286 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7949820788530466 [2022-11-02 20:45:41,287 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1109 transitions. [2022-11-02 20:45:41,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1109 transitions. [2022-11-02 20:45:41,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:41,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1109 transitions. [2022-11-02 20:45:41,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 369.6666666666667) internal successors, (1109), 3 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,295 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,296 INFO L175 Difference]: Start difference. First operand has 335 places, 333 transitions, 711 flow. Second operand 3 states and 1109 transitions. [2022-11-02 20:45:41,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 355 transitions, 891 flow [2022-11-02 20:45:41,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 355 transitions, 877 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:41,306 INFO L231 Difference]: Finished difference. Result has 335 places, 333 transitions, 711 flow [2022-11-02 20:45:41,306 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=711, PETRI_PLACES=335, PETRI_TRANSITIONS=333} [2022-11-02 20:45:41,307 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -95 predicate places. [2022-11-02 20:45:41,307 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 333 transitions, 711 flow [2022-11-02 20:45:41,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:41,308 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:41,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 20:45:41,309 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:41,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:41,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1090045654, now seen corresponding path program 1 times [2022-11-02 20:45:41,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:41,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546843202] [2022-11-02 20:45:41,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:41,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:41,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:41,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:41,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546843202] [2022-11-02 20:45:41,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546843202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:41,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:41,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:41,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891348515] [2022-11-02 20:45:41,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:41,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:45:41,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:41,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:45:41,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:45:41,389 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 465 [2022-11-02 20:45:41,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 333 transitions, 711 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:41,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:41,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 465 [2022-11-02 20:45:41,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:43,696 INFO L130 PetriNetUnfolder]: 2826/7505 cut-off events. [2022-11-02 20:45:43,697 INFO L131 PetriNetUnfolder]: For 2211/2791 co-relation queries the response was YES. [2022-11-02 20:45:43,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13229 conditions, 7505 events. 2826/7505 cut-off events. For 2211/2791 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 63951 event pairs, 1117 based on Foata normal form. 0/6382 useless extension candidates. Maximal degree in co-relation 13126. Up to 2207 conditions per place. [2022-11-02 20:45:43,758 INFO L137 encePairwiseOnDemand]: 461/465 looper letters, 50 selfloop transitions, 4 changer transitions 0/357 dead transitions. [2022-11-02 20:45:43,758 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 357 transitions, 900 flow [2022-11-02 20:45:43,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:45:43,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:45:43,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1110 transitions. [2022-11-02 20:45:43,761 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7956989247311828 [2022-11-02 20:45:43,761 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1110 transitions. [2022-11-02 20:45:43,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1110 transitions. [2022-11-02 20:45:43,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:43,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1110 transitions. [2022-11-02 20:45:43,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 370.0) internal successors, (1110), 3 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:43,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:43,768 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:43,768 INFO L175 Difference]: Start difference. First operand has 335 places, 333 transitions, 711 flow. Second operand 3 states and 1110 transitions. [2022-11-02 20:45:43,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 357 transitions, 900 flow [2022-11-02 20:45:43,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 357 transitions, 897 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:45:43,776 INFO L231 Difference]: Finished difference. Result has 337 places, 335 transitions, 739 flow [2022-11-02 20:45:43,776 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=707, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=739, PETRI_PLACES=337, PETRI_TRANSITIONS=335} [2022-11-02 20:45:43,777 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -93 predicate places. [2022-11-02 20:45:43,777 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 335 transitions, 739 flow [2022-11-02 20:45:43,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:43,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:43,778 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:43,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-02 20:45:43,778 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:43,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:43,779 INFO L85 PathProgramCache]: Analyzing trace with hash 149702676, now seen corresponding path program 1 times [2022-11-02 20:45:43,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:43,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941440663] [2022-11-02 20:45:43,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:43,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:44,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:44,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:44,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941440663] [2022-11-02 20:45:44,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941440663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:44,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:44,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:45:44,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941037036] [2022-11-02 20:45:44,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:44,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:45:44,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:44,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:45:44,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:45:44,459 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 465 [2022-11-02 20:45:44,461 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 335 transitions, 739 flow. Second operand has 6 states, 6 states have (on average 321.1666666666667) internal successors, (1927), 6 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:44,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:44,461 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 465 [2022-11-02 20:45:44,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:45:53,068 INFO L130 PetriNetUnfolder]: 19194/29365 cut-off events. [2022-11-02 20:45:53,068 INFO L131 PetriNetUnfolder]: For 23996/23996 co-relation queries the response was YES. [2022-11-02 20:45:53,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70342 conditions, 29365 events. 19194/29365 cut-off events. For 23996/23996 co-relation queries the response was YES. Maximal size of possible extension queue 821. Compared 185489 event pairs, 2275 based on Foata normal form. 0/28042 useless extension candidates. Maximal degree in co-relation 70238. Up to 12605 conditions per place. [2022-11-02 20:45:53,332 INFO L137 encePairwiseOnDemand]: 460/465 looper letters, 141 selfloop transitions, 4 changer transitions 0/414 dead transitions. [2022-11-02 20:45:53,333 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 414 transitions, 1371 flow [2022-11-02 20:45:53,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:45:53,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:45:53,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2020 transitions. [2022-11-02 20:45:53,340 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7240143369175627 [2022-11-02 20:45:53,340 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2020 transitions. [2022-11-02 20:45:53,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2020 transitions. [2022-11-02 20:45:53,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:53,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2020 transitions. [2022-11-02 20:45:53,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 336.6666666666667) internal successors, (2020), 6 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:53,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 465.0) internal successors, (3255), 7 states have internal predecessors, (3255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:53,353 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 465.0) internal successors, (3255), 7 states have internal predecessors, (3255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:53,353 INFO L175 Difference]: Start difference. First operand has 337 places, 335 transitions, 739 flow. Second operand 6 states and 2020 transitions. [2022-11-02 20:45:53,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 414 transitions, 1371 flow [2022-11-02 20:45:53,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 414 transitions, 1339 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:45:53,386 INFO L231 Difference]: Finished difference. Result has 339 places, 334 transitions, 737 flow [2022-11-02 20:45:53,386 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=737, PETRI_PLACES=339, PETRI_TRANSITIONS=334} [2022-11-02 20:45:53,387 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -91 predicate places. [2022-11-02 20:45:53,387 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 334 transitions, 737 flow [2022-11-02 20:45:53,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 321.1666666666667) internal successors, (1927), 6 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:53,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:45:53,388 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:53,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-02 20:45:53,389 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:45:53,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:53,390 INFO L85 PathProgramCache]: Analyzing trace with hash -610461472, now seen corresponding path program 1 times [2022-11-02 20:45:53,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:53,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914817489] [2022-11-02 20:45:53,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:53,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:53,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:54,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:54,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:54,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914817489] [2022-11-02 20:45:54,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914817489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:54,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:54,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:45:54,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145576978] [2022-11-02 20:45:54,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:54,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:45:54,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:54,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:45:54,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:45:54,074 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 465 [2022-11-02 20:45:54,076 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 334 transitions, 737 flow. Second operand has 6 states, 6 states have (on average 322.3333333333333) internal successors, (1934), 6 states have internal predecessors, (1934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:54,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:45:54,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 465 [2022-11-02 20:45:54,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:02,925 INFO L130 PetriNetUnfolder]: 17272/26833 cut-off events. [2022-11-02 20:46:02,926 INFO L131 PetriNetUnfolder]: For 17731/17731 co-relation queries the response was YES. [2022-11-02 20:46:03,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63914 conditions, 26833 events. 17272/26833 cut-off events. For 17731/17731 co-relation queries the response was YES. Maximal size of possible extension queue 766. Compared 170623 event pairs, 7743 based on Foata normal form. 0/25627 useless extension candidates. Maximal degree in co-relation 63810. Up to 16456 conditions per place. [2022-11-02 20:46:03,201 INFO L137 encePairwiseOnDemand]: 460/465 looper letters, 124 selfloop transitions, 4 changer transitions 0/397 dead transitions. [2022-11-02 20:46:03,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 397 transitions, 1263 flow [2022-11-02 20:46:03,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:46:03,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:46:03,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2007 transitions. [2022-11-02 20:46:03,207 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7193548387096774 [2022-11-02 20:46:03,207 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2007 transitions. [2022-11-02 20:46:03,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2007 transitions. [2022-11-02 20:46:03,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:03,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2007 transitions. [2022-11-02 20:46:03,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 334.5) internal successors, (2007), 6 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:03,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 465.0) internal successors, (3255), 7 states have internal predecessors, (3255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:03,219 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 465.0) internal successors, (3255), 7 states have internal predecessors, (3255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:03,219 INFO L175 Difference]: Start difference. First operand has 339 places, 334 transitions, 737 flow. Second operand 6 states and 2007 transitions. [2022-11-02 20:46:03,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 397 transitions, 1263 flow [2022-11-02 20:46:03,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 397 transitions, 1256 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:46:03,238 INFO L231 Difference]: Finished difference. Result has 339 places, 333 transitions, 736 flow [2022-11-02 20:46:03,239 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=728, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=736, PETRI_PLACES=339, PETRI_TRANSITIONS=333} [2022-11-02 20:46:03,239 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -91 predicate places. [2022-11-02 20:46:03,239 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 333 transitions, 736 flow [2022-11-02 20:46:03,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 322.3333333333333) internal successors, (1934), 6 states have internal predecessors, (1934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:03,240 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:03,240 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:03,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-02 20:46:03,241 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:46:03,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:03,241 INFO L85 PathProgramCache]: Analyzing trace with hash -997293976, now seen corresponding path program 1 times [2022-11-02 20:46:03,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:03,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386828818] [2022-11-02 20:46:03,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:03,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:03,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:03,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:03,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386828818] [2022-11-02 20:46:03,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386828818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:03,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:03,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:46:03,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346519058] [2022-11-02 20:46:03,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:03,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:46:03,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:03,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:46:03,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:46:03,916 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 465 [2022-11-02 20:46:03,918 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 333 transitions, 736 flow. Second operand has 6 states, 6 states have (on average 323.5) internal successors, (1941), 6 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:03,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:03,918 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 465 [2022-11-02 20:46:03,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:11,924 INFO L130 PetriNetUnfolder]: 16762/26363 cut-off events. [2022-11-02 20:46:11,924 INFO L131 PetriNetUnfolder]: For 16396/16396 co-relation queries the response was YES. [2022-11-02 20:46:12,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61710 conditions, 26363 events. 16762/26363 cut-off events. For 16396/16396 co-relation queries the response was YES. Maximal size of possible extension queue 739. Compared 169557 event pairs, 9395 based on Foata normal form. 0/25237 useless extension candidates. Maximal degree in co-relation 61606. Up to 20229 conditions per place. [2022-11-02 20:46:12,110 INFO L137 encePairwiseOnDemand]: 460/465 looper letters, 107 selfloop transitions, 4 changer transitions 0/380 dead transitions. [2022-11-02 20:46:12,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 380 transitions, 1180 flow [2022-11-02 20:46:12,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:46:12,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:46:12,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1994 transitions. [2022-11-02 20:46:12,116 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7146953405017921 [2022-11-02 20:46:12,116 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1994 transitions. [2022-11-02 20:46:12,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1994 transitions. [2022-11-02 20:46:12,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:12,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1994 transitions. [2022-11-02 20:46:12,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 332.3333333333333) internal successors, (1994), 6 states have internal predecessors, (1994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:12,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 465.0) internal successors, (3255), 7 states have internal predecessors, (3255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:12,127 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 465.0) internal successors, (3255), 7 states have internal predecessors, (3255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:12,127 INFO L175 Difference]: Start difference. First operand has 339 places, 333 transitions, 736 flow. Second operand 6 states and 1994 transitions. [2022-11-02 20:46:12,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 380 transitions, 1180 flow [2022-11-02 20:46:12,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 380 transitions, 1173 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:46:12,154 INFO L231 Difference]: Finished difference. Result has 339 places, 332 transitions, 735 flow [2022-11-02 20:46:12,155 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=735, PETRI_PLACES=339, PETRI_TRANSITIONS=332} [2022-11-02 20:46:12,156 INFO L287 CegarLoopForPetriNet]: 430 programPoint places, -91 predicate places. [2022-11-02 20:46:12,156 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 332 transitions, 735 flow [2022-11-02 20:46:12,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 323.5) internal successors, (1941), 6 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:12,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:12,157 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:12,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-02 20:46:12,158 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-02 20:46:12,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:12,158 INFO L85 PathProgramCache]: Analyzing trace with hash 539060758, now seen corresponding path program 1 times [2022-11-02 20:46:12,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:12,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613371517] [2022-11-02 20:46:12,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:12,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:13,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:13,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:13,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613371517] [2022-11-02 20:46:13,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613371517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:13,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:13,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:46:13,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413280982] [2022-11-02 20:46:13,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:13,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:46:13,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:13,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:46:13,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:46:13,121 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 465 [2022-11-02 20:46:13,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 332 transitions, 735 flow. Second operand has 6 states, 6 states have (on average 324.6666666666667) internal successors, (1948), 6 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:13,123 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:13,123 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 465 [2022-11-02 20:46:13,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand