./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_6bc534f0-0599-4b09-bf66-37067364e15d/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc534f0-0599-4b09-bf66-37067364e15d/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc534f0-0599-4b09-bf66-37067364e15d/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc534f0-0599-4b09-bf66-37067364e15d/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc534f0-0599-4b09-bf66-37067364e15d/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc534f0-0599-4b09-bf66-37067364e15d/bin/uautomizer-tPACEb0tL8 --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 a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 --- 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-e04fb08 [2022-11-16 11:05:09,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:05:09,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:05:09,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:05:09,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:05:09,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:05:09,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:05:09,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:05:09,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:05:09,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:05:09,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:05:09,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:05:09,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:05:09,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:05:09,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:05:09,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:05:09,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:05:09,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:05:09,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:05:09,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:05:09,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:05:09,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:05:09,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:05:09,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:05:09,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:05:09,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:05:09,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:05:09,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:05:09,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:05:09,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:05:09,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:05:09,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:05:09,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:05:09,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:05:09,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:05:09,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:05:09,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:05:09,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:05:09,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:05:09,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:05:09,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:05:09,560 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc534f0-0599-4b09-bf66-37067364e15d/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:05:09,587 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:05:09,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:05:09,588 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:05:09,588 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:05:09,589 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:05:09,589 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:05:09,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:05:09,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:05:09,590 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:05:09,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:05:09,591 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:05:09,591 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:05:09,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:05:09,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:05:09,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:05:09,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:05:09,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:05:09,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:05:09,592 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:05:09,592 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:05:09,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:05:09,593 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:05:09,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:05:09,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:05:09,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:05:09,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:05:09,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:05:09,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:05:09,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:05:09,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:05:09,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:05:09,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:05:09,595 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:05:09,595 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:05:09,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:05:09,595 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_6bc534f0-0599-4b09-bf66-37067364e15d/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc534f0-0599-4b09-bf66-37067364e15d/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 [2022-11-16 11:05:09,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:05:09,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:05:09,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:05:09,963 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:05:09,964 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:05:09,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc534f0-0599-4b09-bf66-37067364e15d/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-11-16 11:05:10,047 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc534f0-0599-4b09-bf66-37067364e15d/bin/uautomizer-tPACEb0tL8/data/349a583e3/ebfa61d616114406bfa768ee4bb77f48/FLAGa9e802023 [2022-11-16 11:05:10,772 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:05:10,773 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc534f0-0599-4b09-bf66-37067364e15d/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-11-16 11:05:10,798 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc534f0-0599-4b09-bf66-37067364e15d/bin/uautomizer-tPACEb0tL8/data/349a583e3/ebfa61d616114406bfa768ee4bb77f48/FLAGa9e802023 [2022-11-16 11:05:10,954 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc534f0-0599-4b09-bf66-37067364e15d/bin/uautomizer-tPACEb0tL8/data/349a583e3/ebfa61d616114406bfa768ee4bb77f48 [2022-11-16 11:05:10,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:05:10,960 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:05:10,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:05:10,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:05:10,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:05:10,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:05:10" (1/1) ... [2022-11-16 11:05:10,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7962c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:10, skipping insertion in model container [2022-11-16 11:05:10,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:05:10" (1/1) ... [2022-11-16 11:05:10,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:05:11,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:05:11,261 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 11:05:11,920 WARN L229 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_6bc534f0-0599-4b09-bf66-37067364e15d/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-11-16 11:05:11,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:05:11,975 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:05:11,987 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 11:05:12,032 WARN L229 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_6bc534f0-0599-4b09-bf66-37067364e15d/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-11-16 11:05:12,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:05:12,170 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:05:12,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:12 WrapperNode [2022-11-16 11:05:12,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:05:12,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:05:12,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:05:12,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:05:12,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:12" (1/1) ... [2022-11-16 11:05:12,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:12" (1/1) ... [2022-11-16 11:05:12,281 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 225 [2022-11-16 11:05:12,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:05:12,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:05:12,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:05:12,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:05:12,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:12" (1/1) ... [2022-11-16 11:05:12,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:12" (1/1) ... [2022-11-16 11:05:12,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:12" (1/1) ... [2022-11-16 11:05:12,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:12" (1/1) ... [2022-11-16 11:05:12,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:12" (1/1) ... [2022-11-16 11:05:12,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:12" (1/1) ... [2022-11-16 11:05:12,373 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:12" (1/1) ... [2022-11-16 11:05:12,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:12" (1/1) ... [2022-11-16 11:05:12,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:05:12,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:05:12,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:05:12,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:05:12,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:12" (1/1) ... [2022-11-16 11:05:12,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:05:12,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc534f0-0599-4b09-bf66-37067364e15d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:05:12,443 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc534f0-0599-4b09-bf66-37067364e15d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:05:12,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bc534f0-0599-4b09-bf66-37067364e15d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:05:12,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:05:12,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:05:12,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:05:12,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:05:12,498 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:05:12,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:05:12,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:05:12,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:05:12,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:05:12,498 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-16 11:05:12,498 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-16 11:05:12,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:05:12,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:05:12,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:05:12,500 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:05:12,850 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:05:12,852 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:05:13,477 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:05:13,663 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:05:13,664 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:05:13,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:05:13 BoogieIcfgContainer [2022-11-16 11:05:13,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:05:13,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:05:13,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:05:13,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:05:13,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:05:10" (1/3) ... [2022-11-16 11:05:13,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37392291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:05:13, skipping insertion in model container [2022-11-16 11:05:13,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:05:12" (2/3) ... [2022-11-16 11:05:13,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37392291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:05:13, skipping insertion in model container [2022-11-16 11:05:13,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:05:13" (3/3) ... [2022-11-16 11:05:13,680 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2022-11-16 11:05:13,693 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:05:13,704 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:05:13,704 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-16 11:05:13,704 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:05:13,837 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 11:05:13,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 247 transitions, 510 flow [2022-11-16 11:05:14,044 INFO L130 PetriNetUnfolder]: 8/324 cut-off events. [2022-11-16 11:05:14,045 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:05:14,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 324 events. 8/324 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 605 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 167. Up to 4 conditions per place. [2022-11-16 11:05:14,052 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 247 transitions, 510 flow [2022-11-16 11:05:14,060 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 245 places, 244 transitions, 500 flow [2022-11-16 11:05:14,079 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:05:14,086 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;@37e67bdd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:05:14,086 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-16 11:05:14,094 INFO L130 PetriNetUnfolder]: 0/42 cut-off events. [2022-11-16 11:05:14,094 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:05:14,095 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:14,095 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:14,096 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:05:14,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:14,101 INFO L85 PathProgramCache]: Analyzing trace with hash -413904667, now seen corresponding path program 1 times [2022-11-16 11:05:14,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:14,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85162041] [2022-11-16 11:05:14,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:14,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:15,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:15,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:15,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85162041] [2022-11-16 11:05:15,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85162041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:15,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:15,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:15,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140617191] [2022-11-16 11:05:15,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:15,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:05:15,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:15,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:05:15,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:05:15,233 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 247 [2022-11-16 11:05:15,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 244 transitions, 500 flow. Second operand has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:15,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:15,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 247 [2022-11-16 11:05:15,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:16,284 INFO L130 PetriNetUnfolder]: 850/2460 cut-off events. [2022-11-16 11:05:16,285 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-16 11:05:16,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3982 conditions, 2460 events. 850/2460 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 16844 event pairs, 849 based on Foata normal form. 36/2317 useless extension candidates. Maximal degree in co-relation 3619. Up to 1499 conditions per place. [2022-11-16 11:05:16,306 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 75 selfloop transitions, 5 changer transitions 17/225 dead transitions. [2022-11-16 11:05:16,306 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 225 transitions, 624 flow [2022-11-16 11:05:16,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:05:16,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:05:16,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 978 transitions. [2022-11-16 11:05:16,331 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.659919028340081 [2022-11-16 11:05:16,332 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 978 transitions. [2022-11-16 11:05:16,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 978 transitions. [2022-11-16 11:05:16,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:16,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 978 transitions. [2022-11-16 11:05:16,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:16,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:16,359 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:16,361 INFO L175 Difference]: Start difference. First operand has 245 places, 244 transitions, 500 flow. Second operand 6 states and 978 transitions. [2022-11-16 11:05:16,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 225 transitions, 624 flow [2022-11-16 11:05:16,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 225 transitions, 616 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:05:16,375 INFO L231 Difference]: Finished difference. Result has 231 places, 208 transitions, 430 flow [2022-11-16 11:05:16,378 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=430, PETRI_PLACES=231, PETRI_TRANSITIONS=208} [2022-11-16 11:05:16,382 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -14 predicate places. [2022-11-16 11:05:16,383 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 208 transitions, 430 flow [2022-11-16 11:05:16,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:16,384 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:16,385 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:16,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:05:16,386 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:05:16,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:16,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1022033083, now seen corresponding path program 1 times [2022-11-16 11:05:16,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:16,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298149105] [2022-11-16 11:05:16,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:16,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:17,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:17,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:17,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298149105] [2022-11-16 11:05:17,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298149105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:17,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:17,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:17,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423750248] [2022-11-16 11:05:17,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:17,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:05:17,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:17,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:05:17,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:05:17,032 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 247 [2022-11-16 11:05:17,034 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 208 transitions, 430 flow. Second operand has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:17,034 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:17,034 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 247 [2022-11-16 11:05:17,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:17,768 INFO L130 PetriNetUnfolder]: 826/2178 cut-off events. [2022-11-16 11:05:17,769 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:05:17,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3652 conditions, 2178 events. 826/2178 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 14521 event pairs, 825 based on Foata normal form. 0/2036 useless extension candidates. Maximal degree in co-relation 3590. Up to 1457 conditions per place. [2022-11-16 11:05:17,783 INFO L137 encePairwiseOnDemand]: 241/247 looper letters, 74 selfloop transitions, 5 changer transitions 0/207 dead transitions. [2022-11-16 11:05:17,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 207 transitions, 586 flow [2022-11-16 11:05:17,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:05:17,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:05:17,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 962 transitions. [2022-11-16 11:05:17,787 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6491228070175439 [2022-11-16 11:05:17,787 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 962 transitions. [2022-11-16 11:05:17,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 962 transitions. [2022-11-16 11:05:17,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:17,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 962 transitions. [2022-11-16 11:05:17,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.33333333333334) internal successors, (962), 6 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:17,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:17,795 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:17,795 INFO L175 Difference]: Start difference. First operand has 231 places, 208 transitions, 430 flow. Second operand 6 states and 962 transitions. [2022-11-16 11:05:17,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 207 transitions, 586 flow [2022-11-16 11:05:17,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 207 transitions, 576 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:05:17,806 INFO L231 Difference]: Finished difference. Result has 213 places, 207 transitions, 428 flow [2022-11-16 11:05:17,807 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=428, PETRI_PLACES=213, PETRI_TRANSITIONS=207} [2022-11-16 11:05:17,808 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -32 predicate places. [2022-11-16 11:05:17,808 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 207 transitions, 428 flow [2022-11-16 11:05:17,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:17,809 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:17,809 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:17,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:05:17,810 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:05:17,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:17,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1828756419, now seen corresponding path program 1 times [2022-11-16 11:05:17,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:17,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25619052] [2022-11-16 11:05:17,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:17,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:18,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:18,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:18,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25619052] [2022-11-16 11:05:18,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25619052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:18,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:18,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:18,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803665071] [2022-11-16 11:05:18,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:18,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:05:18,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:18,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:05:18,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:05:18,365 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 247 [2022-11-16 11:05:18,367 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 207 transitions, 428 flow. Second operand has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:18,367 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:18,367 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 247 [2022-11-16 11:05:18,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:19,619 INFO L130 PetriNetUnfolder]: 1102/2630 cut-off events. [2022-11-16 11:05:19,620 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:05:19,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4569 conditions, 2630 events. 1102/2630 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 17578 event pairs, 903 based on Foata normal form. 0/2490 useless extension candidates. Maximal degree in co-relation 4496. Up to 1827 conditions per place. [2022-11-16 11:05:19,638 INFO L137 encePairwiseOnDemand]: 234/247 looper letters, 82 selfloop transitions, 30 changer transitions 0/236 dead transitions. [2022-11-16 11:05:19,639 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 236 transitions, 710 flow [2022-11-16 11:05:19,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:05:19,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:05:19,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2022-11-16 11:05:19,642 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6470985155195681 [2022-11-16 11:05:19,642 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2022-11-16 11:05:19,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2022-11-16 11:05:19,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:19,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2022-11-16 11:05:19,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:19,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:19,650 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:19,651 INFO L175 Difference]: Start difference. First operand has 213 places, 207 transitions, 428 flow. Second operand 6 states and 959 transitions. [2022-11-16 11:05:19,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 236 transitions, 710 flow [2022-11-16 11:05:19,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 236 transitions, 700 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:05:19,657 INFO L231 Difference]: Finished difference. Result has 218 places, 236 transitions, 620 flow [2022-11-16 11:05:19,657 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=620, PETRI_PLACES=218, PETRI_TRANSITIONS=236} [2022-11-16 11:05:19,660 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -27 predicate places. [2022-11-16 11:05:19,660 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 236 transitions, 620 flow [2022-11-16 11:05:19,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:19,661 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:19,661 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:19,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:05:19,662 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:05:19,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:19,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1585514794, now seen corresponding path program 1 times [2022-11-16 11:05:19,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:19,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473682379] [2022-11-16 11:05:19,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:19,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:19,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:19,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:19,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:19,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473682379] [2022-11-16 11:05:19,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473682379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:19,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:19,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:19,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545867525] [2022-11-16 11:05:19,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:19,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:05:19,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:19,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:05:19,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:05:19,824 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 247 [2022-11-16 11:05:19,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 236 transitions, 620 flow. Second operand has 5 states, 5 states have (on average 205.8) internal successors, (1029), 5 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:19,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:19,827 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 247 [2022-11-16 11:05:19,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:20,331 INFO L130 PetriNetUnfolder]: 533/2101 cut-off events. [2022-11-16 11:05:20,332 INFO L131 PetriNetUnfolder]: For 561/609 co-relation queries the response was YES. [2022-11-16 11:05:20,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3827 conditions, 2101 events. 533/2101 cut-off events. For 561/609 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 14595 event pairs, 348 based on Foata normal form. 0/1991 useless extension candidates. Maximal degree in co-relation 2605. Up to 738 conditions per place. [2022-11-16 11:05:20,347 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 50 selfloop transitions, 4 changer transitions 0/241 dead transitions. [2022-11-16 11:05:20,348 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 241 transitions, 738 flow [2022-11-16 11:05:20,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:05:20,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:05:20,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1255 transitions. [2022-11-16 11:05:20,353 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8468286099865048 [2022-11-16 11:05:20,357 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1255 transitions. [2022-11-16 11:05:20,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1255 transitions. [2022-11-16 11:05:20,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:20,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1255 transitions. [2022-11-16 11:05:20,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.16666666666666) internal successors, (1255), 6 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:20,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:20,365 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:20,365 INFO L175 Difference]: Start difference. First operand has 218 places, 236 transitions, 620 flow. Second operand 6 states and 1255 transitions. [2022-11-16 11:05:20,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 241 transitions, 738 flow [2022-11-16 11:05:20,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 241 transitions, 738 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:05:20,381 INFO L231 Difference]: Finished difference. Result has 227 places, 239 transitions, 649 flow [2022-11-16 11:05:20,382 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=649, PETRI_PLACES=227, PETRI_TRANSITIONS=239} [2022-11-16 11:05:20,383 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -18 predicate places. [2022-11-16 11:05:20,383 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 239 transitions, 649 flow [2022-11-16 11:05:20,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 205.8) internal successors, (1029), 5 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:20,384 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:20,385 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:20,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:05:20,385 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:05:20,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:20,386 INFO L85 PathProgramCache]: Analyzing trace with hash 523906389, now seen corresponding path program 1 times [2022-11-16 11:05:20,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:20,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13238685] [2022-11-16 11:05:20,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:20,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:20,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:20,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:20,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13238685] [2022-11-16 11:05:20,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13238685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:20,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:20,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:20,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164084238] [2022-11-16 11:05:20,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:20,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:05:20,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:20,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:05:20,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:05:20,991 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 247 [2022-11-16 11:05:20,992 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 239 transitions, 649 flow. Second operand has 6 states, 6 states have (on average 145.33333333333334) internal successors, (872), 6 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:20,992 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:20,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 247 [2022-11-16 11:05:20,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:22,235 INFO L130 PetriNetUnfolder]: 1233/2876 cut-off events. [2022-11-16 11:05:22,236 INFO L131 PetriNetUnfolder]: For 919/967 co-relation queries the response was YES. [2022-11-16 11:05:22,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6739 conditions, 2876 events. 1233/2876 cut-off events. For 919/967 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 18588 event pairs, 837 based on Foata normal form. 0/2761 useless extension candidates. Maximal degree in co-relation 6636. Up to 2032 conditions per place. [2022-11-16 11:05:22,256 INFO L137 encePairwiseOnDemand]: 234/247 looper letters, 110 selfloop transitions, 30 changer transitions 0/268 dead transitions. [2022-11-16 11:05:22,256 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 268 transitions, 1035 flow [2022-11-16 11:05:22,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:05:22,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:05:22,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2022-11-16 11:05:22,259 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6470985155195681 [2022-11-16 11:05:22,259 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2022-11-16 11:05:22,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2022-11-16 11:05:22,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:22,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2022-11-16 11:05:22,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:22,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:22,265 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:22,265 INFO L175 Difference]: Start difference. First operand has 227 places, 239 transitions, 649 flow. Second operand 6 states and 959 transitions. [2022-11-16 11:05:22,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 268 transitions, 1035 flow [2022-11-16 11:05:22,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 268 transitions, 1034 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:05:22,274 INFO L231 Difference]: Finished difference. Result has 236 places, 268 transitions, 898 flow [2022-11-16 11:05:22,274 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=898, PETRI_PLACES=236, PETRI_TRANSITIONS=268} [2022-11-16 11:05:22,275 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -9 predicate places. [2022-11-16 11:05:22,275 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 268 transitions, 898 flow [2022-11-16 11:05:22,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.33333333333334) internal successors, (872), 6 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:22,276 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:22,276 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:22,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:05:22,276 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:05:22,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:22,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1879858362, now seen corresponding path program 1 times [2022-11-16 11:05:22,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:22,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952927513] [2022-11-16 11:05:22,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:22,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:22,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:22,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:22,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952927513] [2022-11-16 11:05:22,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952927513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:22,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:22,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:22,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309831245] [2022-11-16 11:05:22,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:22,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:05:22,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:22,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:05:22,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:05:22,838 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 247 [2022-11-16 11:05:22,839 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 268 transitions, 898 flow. Second operand has 6 states, 6 states have (on average 148.16666666666666) internal successors, (889), 6 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:22,839 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:22,840 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 247 [2022-11-16 11:05:22,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:24,188 INFO L130 PetriNetUnfolder]: 1434/3383 cut-off events. [2022-11-16 11:05:24,188 INFO L131 PetriNetUnfolder]: For 2465/2561 co-relation queries the response was YES. [2022-11-16 11:05:24,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9544 conditions, 3383 events. 1434/3383 cut-off events. For 2465/2561 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 22270 event pairs, 638 based on Foata normal form. 0/3287 useless extension candidates. Maximal degree in co-relation 8176. Up to 2134 conditions per place. [2022-11-16 11:05:24,220 INFO L137 encePairwiseOnDemand]: 231/247 looper letters, 146 selfloop transitions, 26 changer transitions 0/303 dead transitions. [2022-11-16 11:05:24,220 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 303 transitions, 1412 flow [2022-11-16 11:05:24,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:05:24,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:05:24,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 976 transitions. [2022-11-16 11:05:24,223 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6585695006747638 [2022-11-16 11:05:24,224 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 976 transitions. [2022-11-16 11:05:24,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 976 transitions. [2022-11-16 11:05:24,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:24,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 976 transitions. [2022-11-16 11:05:24,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:24,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:24,233 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:24,233 INFO L175 Difference]: Start difference. First operand has 236 places, 268 transitions, 898 flow. Second operand 6 states and 976 transitions. [2022-11-16 11:05:24,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 303 transitions, 1412 flow [2022-11-16 11:05:24,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 303 transitions, 1364 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-11-16 11:05:24,252 INFO L231 Difference]: Finished difference. Result has 245 places, 288 transitions, 1082 flow [2022-11-16 11:05:24,253 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1082, PETRI_PLACES=245, PETRI_TRANSITIONS=288} [2022-11-16 11:05:24,255 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 0 predicate places. [2022-11-16 11:05:24,256 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 288 transitions, 1082 flow [2022-11-16 11:05:24,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.16666666666666) internal successors, (889), 6 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:24,257 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:24,257 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:24,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:05:24,257 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:05:24,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:24,258 INFO L85 PathProgramCache]: Analyzing trace with hash 148556689, now seen corresponding path program 1 times [2022-11-16 11:05:24,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:24,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498394422] [2022-11-16 11:05:24,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:24,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:25,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:25,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:25,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498394422] [2022-11-16 11:05:25,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498394422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:25,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:25,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:25,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023078058] [2022-11-16 11:05:25,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:25,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:05:25,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:25,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:05:25,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:05:25,023 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 247 [2022-11-16 11:05:25,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 288 transitions, 1082 flow. Second operand has 6 states, 6 states have (on average 155.16666666666666) internal successors, (931), 6 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:25,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:25,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 247 [2022-11-16 11:05:25,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:26,436 INFO L130 PetriNetUnfolder]: 1431/3530 cut-off events. [2022-11-16 11:05:26,437 INFO L131 PetriNetUnfolder]: For 4176/4328 co-relation queries the response was YES. [2022-11-16 11:05:26,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10875 conditions, 3530 events. 1431/3530 cut-off events. For 4176/4328 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 23607 event pairs, 616 based on Foata normal form. 0/3435 useless extension candidates. Maximal degree in co-relation 8433. Up to 2288 conditions per place. [2022-11-16 11:05:26,471 INFO L137 encePairwiseOnDemand]: 236/247 looper letters, 177 selfloop transitions, 22 changer transitions 0/336 dead transitions. [2022-11-16 11:05:26,471 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 336 transitions, 1730 flow [2022-11-16 11:05:26,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:05:26,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:05:26,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1029 transitions. [2022-11-16 11:05:26,475 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.694331983805668 [2022-11-16 11:05:26,475 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1029 transitions. [2022-11-16 11:05:26,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1029 transitions. [2022-11-16 11:05:26,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:26,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1029 transitions. [2022-11-16 11:05:26,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 171.5) internal successors, (1029), 6 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:26,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:26,482 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:26,482 INFO L175 Difference]: Start difference. First operand has 245 places, 288 transitions, 1082 flow. Second operand 6 states and 1029 transitions. [2022-11-16 11:05:26,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 336 transitions, 1730 flow [2022-11-16 11:05:26,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 336 transitions, 1730 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:05:26,498 INFO L231 Difference]: Finished difference. Result has 255 places, 309 transitions, 1336 flow [2022-11-16 11:05:26,499 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1082, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1336, PETRI_PLACES=255, PETRI_TRANSITIONS=309} [2022-11-16 11:05:26,499 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 10 predicate places. [2022-11-16 11:05:26,499 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 309 transitions, 1336 flow [2022-11-16 11:05:26,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.16666666666666) internal successors, (931), 6 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:26,500 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:26,500 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:26,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:05:26,501 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:05:26,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:26,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1768853339, now seen corresponding path program 1 times [2022-11-16 11:05:26,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:26,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198036243] [2022-11-16 11:05:26,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:26,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:26,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:26,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:26,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198036243] [2022-11-16 11:05:26,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198036243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:26,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:26,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:26,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936710586] [2022-11-16 11:05:26,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:26,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:05:26,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:26,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:05:26,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:05:26,692 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 247 [2022-11-16 11:05:26,693 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 309 transitions, 1336 flow. Second operand has 5 states, 5 states have (on average 207.2) internal successors, (1036), 5 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:26,693 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:26,693 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 247 [2022-11-16 11:05:26,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:27,219 INFO L130 PetriNetUnfolder]: 381/1324 cut-off events. [2022-11-16 11:05:27,219 INFO L131 PetriNetUnfolder]: For 2876/3020 co-relation queries the response was YES. [2022-11-16 11:05:27,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3852 conditions, 1324 events. 381/1324 cut-off events. For 2876/3020 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 7557 event pairs, 111 based on Foata normal form. 16/1310 useless extension candidates. Maximal degree in co-relation 3752. Up to 419 conditions per place. [2022-11-16 11:05:27,236 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 65 selfloop transitions, 4 changer transitions 1/253 dead transitions. [2022-11-16 11:05:27,236 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 253 transitions, 1162 flow [2022-11-16 11:05:27,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:05:27,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:05:27,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1278 transitions. [2022-11-16 11:05:27,240 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8623481781376519 [2022-11-16 11:05:27,240 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1278 transitions. [2022-11-16 11:05:27,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1278 transitions. [2022-11-16 11:05:27,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:27,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1278 transitions. [2022-11-16 11:05:27,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:27,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:27,249 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:27,249 INFO L175 Difference]: Start difference. First operand has 255 places, 309 transitions, 1336 flow. Second operand 6 states and 1278 transitions. [2022-11-16 11:05:27,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 253 transitions, 1162 flow [2022-11-16 11:05:27,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 253 transitions, 1066 flow, removed 15 selfloop flow, removed 24 redundant places. [2022-11-16 11:05:27,260 INFO L231 Difference]: Finished difference. Result has 234 places, 227 transitions, 727 flow [2022-11-16 11:05:27,260 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=727, PETRI_PLACES=234, PETRI_TRANSITIONS=227} [2022-11-16 11:05:27,264 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -11 predicate places. [2022-11-16 11:05:27,264 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 227 transitions, 727 flow [2022-11-16 11:05:27,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 207.2) internal successors, (1036), 5 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:27,265 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:27,265 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:27,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:05:27,265 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:05:27,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:27,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1486266262, now seen corresponding path program 1 times [2022-11-16 11:05:27,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:27,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369066809] [2022-11-16 11:05:27,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:27,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:29,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:29,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:29,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369066809] [2022-11-16 11:05:29,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369066809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:29,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:29,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:05:29,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497180741] [2022-11-16 11:05:29,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:29,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:05:29,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:29,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:05:29,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:05:29,398 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:05:29,401 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 227 transitions, 727 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:29,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:29,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:05:29,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:34,295 INFO L130 PetriNetUnfolder]: 1512/3516 cut-off events. [2022-11-16 11:05:34,295 INFO L131 PetriNetUnfolder]: For 5723/5723 co-relation queries the response was YES. [2022-11-16 11:05:34,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10862 conditions, 3516 events. 1512/3516 cut-off events. For 5723/5723 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 22392 event pairs, 708 based on Foata normal form. 8/3442 useless extension candidates. Maximal degree in co-relation 10581. Up to 1690 conditions per place. [2022-11-16 11:05:34,320 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 225 selfloop transitions, 107 changer transitions 0/443 dead transitions. [2022-11-16 11:05:34,320 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 443 transitions, 2439 flow [2022-11-16 11:05:34,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-16 11:05:34,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-16 11:05:34,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3876 transitions. [2022-11-16 11:05:34,329 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5604395604395604 [2022-11-16 11:05:34,329 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3876 transitions. [2022-11-16 11:05:34,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3876 transitions. [2022-11-16 11:05:34,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:34,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3876 transitions. [2022-11-16 11:05:34,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 138.42857142857142) internal successors, (3876), 28 states have internal predecessors, (3876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:34,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 247.0) internal successors, (7163), 29 states have internal predecessors, (7163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:34,354 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 247.0) internal successors, (7163), 29 states have internal predecessors, (7163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:34,355 INFO L175 Difference]: Start difference. First operand has 234 places, 227 transitions, 727 flow. Second operand 28 states and 3876 transitions. [2022-11-16 11:05:34,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 443 transitions, 2439 flow [2022-11-16 11:05:34,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 443 transitions, 2411 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-11-16 11:05:34,400 INFO L231 Difference]: Finished difference. Result has 270 places, 309 transitions, 1716 flow [2022-11-16 11:05:34,400 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1716, PETRI_PLACES=270, PETRI_TRANSITIONS=309} [2022-11-16 11:05:34,402 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 25 predicate places. [2022-11-16 11:05:34,402 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 309 transitions, 1716 flow [2022-11-16 11:05:34,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:34,412 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:34,412 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:34,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:05:34,413 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:05:34,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:34,413 INFO L85 PathProgramCache]: Analyzing trace with hash -835602740, now seen corresponding path program 2 times [2022-11-16 11:05:34,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:34,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034301364] [2022-11-16 11:05:34,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:34,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:37,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:37,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:37,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034301364] [2022-11-16 11:05:37,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034301364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:37,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:37,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:05:37,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754857376] [2022-11-16 11:05:37,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:37,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:05:37,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:37,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:05:37,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:05:37,717 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:05:37,720 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 309 transitions, 1716 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:37,720 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:37,720 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:05:37,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:40,572 INFO L130 PetriNetUnfolder]: 1628/3288 cut-off events. [2022-11-16 11:05:40,573 INFO L131 PetriNetUnfolder]: For 12052/12136 co-relation queries the response was YES. [2022-11-16 11:05:40,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13722 conditions, 3288 events. 1628/3288 cut-off events. For 12052/12136 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 19398 event pairs, 123 based on Foata normal form. 8/3233 useless extension candidates. Maximal degree in co-relation 13430. Up to 1349 conditions per place. [2022-11-16 11:05:40,600 INFO L137 encePairwiseOnDemand]: 228/247 looper letters, 361 selfloop transitions, 96 changer transitions 0/568 dead transitions. [2022-11-16 11:05:40,600 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 568 transitions, 4427 flow [2022-11-16 11:05:40,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:05:40,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:05:40,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2821 transitions. [2022-11-16 11:05:40,607 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5710526315789474 [2022-11-16 11:05:40,608 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2821 transitions. [2022-11-16 11:05:40,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2821 transitions. [2022-11-16 11:05:40,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:40,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2821 transitions. [2022-11-16 11:05:40,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.05) internal successors, (2821), 20 states have internal predecessors, (2821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:40,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:40,625 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:40,625 INFO L175 Difference]: Start difference. First operand has 270 places, 309 transitions, 1716 flow. Second operand 20 states and 2821 transitions. [2022-11-16 11:05:40,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 568 transitions, 4427 flow [2022-11-16 11:05:40,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 568 transitions, 4348 flow, removed 34 selfloop flow, removed 6 redundant places. [2022-11-16 11:05:40,683 INFO L231 Difference]: Finished difference. Result has 292 places, 372 transitions, 2728 flow [2022-11-16 11:05:40,685 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1661, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2728, PETRI_PLACES=292, PETRI_TRANSITIONS=372} [2022-11-16 11:05:40,685 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 47 predicate places. [2022-11-16 11:05:40,686 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 372 transitions, 2728 flow [2022-11-16 11:05:40,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:40,687 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:40,687 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:40,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:05:40,687 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:05:40,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:40,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1936868808, now seen corresponding path program 3 times [2022-11-16 11:05:40,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:40,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047867181] [2022-11-16 11:05:40,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:40,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:42,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:42,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:42,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047867181] [2022-11-16 11:05:42,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047867181] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:42,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:42,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:05:42,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922518496] [2022-11-16 11:05:42,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:42,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:05:42,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:42,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:05:42,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:05:42,975 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:05:42,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 372 transitions, 2728 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:42,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:42,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:05:42,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:46,468 INFO L130 PetriNetUnfolder]: 1725/3422 cut-off events. [2022-11-16 11:05:46,469 INFO L131 PetriNetUnfolder]: For 23489/23594 co-relation queries the response was YES. [2022-11-16 11:05:46,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17448 conditions, 3422 events. 1725/3422 cut-off events. For 23489/23594 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 20237 event pairs, 99 based on Foata normal form. 8/3364 useless extension candidates. Maximal degree in co-relation 17147. Up to 2107 conditions per place. [2022-11-16 11:05:46,506 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 326 selfloop transitions, 112 changer transitions 0/549 dead transitions. [2022-11-16 11:05:46,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 549 transitions, 4963 flow [2022-11-16 11:05:46,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:05:46,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-16 11:05:46,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2414 transitions. [2022-11-16 11:05:46,513 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5748987854251012 [2022-11-16 11:05:46,514 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2414 transitions. [2022-11-16 11:05:46,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2414 transitions. [2022-11-16 11:05:46,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:46,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2414 transitions. [2022-11-16 11:05:46,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 142.0) internal successors, (2414), 17 states have internal predecessors, (2414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:46,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:46,529 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:46,529 INFO L175 Difference]: Start difference. First operand has 292 places, 372 transitions, 2728 flow. Second operand 17 states and 2414 transitions. [2022-11-16 11:05:46,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 549 transitions, 4963 flow [2022-11-16 11:05:46,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 549 transitions, 4822 flow, removed 39 selfloop flow, removed 9 redundant places. [2022-11-16 11:05:46,674 INFO L231 Difference]: Finished difference. Result has 307 places, 426 transitions, 3933 flow [2022-11-16 11:05:46,675 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=2625, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3933, PETRI_PLACES=307, PETRI_TRANSITIONS=426} [2022-11-16 11:05:46,676 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 62 predicate places. [2022-11-16 11:05:46,676 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 426 transitions, 3933 flow [2022-11-16 11:05:46,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:46,677 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:46,677 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:46,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:05:46,678 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:05:46,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:46,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1696890546, now seen corresponding path program 4 times [2022-11-16 11:05:46,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:46,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489407822] [2022-11-16 11:05:46,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:46,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:49,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:49,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:49,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489407822] [2022-11-16 11:05:49,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489407822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:49,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:49,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:05:49,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196033038] [2022-11-16 11:05:49,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:49,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:05:49,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:49,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:05:49,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:05:49,301 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:05:49,304 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 426 transitions, 3933 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:49,304 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:49,304 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:05:49,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:52,948 INFO L130 PetriNetUnfolder]: 2005/4221 cut-off events. [2022-11-16 11:05:52,948 INFO L131 PetriNetUnfolder]: For 38370/38674 co-relation queries the response was YES. [2022-11-16 11:05:52,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22919 conditions, 4221 events. 2005/4221 cut-off events. For 38370/38674 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 26776 event pairs, 483 based on Foata normal form. 8/4131 useless extension candidates. Maximal degree in co-relation 22610. Up to 1863 conditions per place. [2022-11-16 11:05:52,990 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 391 selfloop transitions, 170 changer transitions 0/672 dead transitions. [2022-11-16 11:05:52,991 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 672 transitions, 7645 flow [2022-11-16 11:05:52,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:05:52,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:05:52,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2823 transitions. [2022-11-16 11:05:52,997 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5714574898785425 [2022-11-16 11:05:52,998 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2823 transitions. [2022-11-16 11:05:52,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2823 transitions. [2022-11-16 11:05:52,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:52,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2823 transitions. [2022-11-16 11:05:53,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.15) internal successors, (2823), 20 states have internal predecessors, (2823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:53,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:53,014 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:53,015 INFO L175 Difference]: Start difference. First operand has 307 places, 426 transitions, 3933 flow. Second operand 20 states and 2823 transitions. [2022-11-16 11:05:53,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 672 transitions, 7645 flow [2022-11-16 11:05:53,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 672 transitions, 7488 flow, removed 63 selfloop flow, removed 9 redundant places. [2022-11-16 11:05:53,212 INFO L231 Difference]: Finished difference. Result has 324 places, 499 transitions, 5845 flow [2022-11-16 11:05:53,213 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=3796, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5845, PETRI_PLACES=324, PETRI_TRANSITIONS=499} [2022-11-16 11:05:53,213 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 79 predicate places. [2022-11-16 11:05:53,213 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 499 transitions, 5845 flow [2022-11-16 11:05:53,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:53,214 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:53,215 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:53,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:05:53,215 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:05:53,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:53,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1167389018, now seen corresponding path program 5 times [2022-11-16 11:05:53,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:53,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553712969] [2022-11-16 11:05:53,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:53,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:55,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:55,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:55,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553712969] [2022-11-16 11:05:55,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553712969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:55,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:55,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:05:55,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841925488] [2022-11-16 11:05:55,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:55,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:05:55,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:55,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:05:55,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:05:55,364 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:05:55,367 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 499 transitions, 5845 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:55,367 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:05:55,367 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:05:55,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:05:59,501 INFO L130 PetriNetUnfolder]: 2164/4608 cut-off events. [2022-11-16 11:05:59,501 INFO L131 PetriNetUnfolder]: For 62813/62897 co-relation queries the response was YES. [2022-11-16 11:05:59,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28520 conditions, 4608 events. 2164/4608 cut-off events. For 62813/62897 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 30035 event pairs, 692 based on Foata normal form. 8/4530 useless extension candidates. Maximal degree in co-relation 28205. Up to 2493 conditions per place. [2022-11-16 11:05:59,540 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 367 selfloop transitions, 200 changer transitions 0/678 dead transitions. [2022-11-16 11:05:59,540 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 678 transitions, 8747 flow [2022-11-16 11:05:59,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:05:59,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 11:05:59,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2553 transitions. [2022-11-16 11:05:59,556 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5742240215924427 [2022-11-16 11:05:59,556 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2553 transitions. [2022-11-16 11:05:59,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2553 transitions. [2022-11-16 11:05:59,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:05:59,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2553 transitions. [2022-11-16 11:05:59,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 141.83333333333334) internal successors, (2553), 18 states have internal predecessors, (2553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:59,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:59,579 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:59,579 INFO L175 Difference]: Start difference. First operand has 324 places, 499 transitions, 5845 flow. Second operand 18 states and 2553 transitions. [2022-11-16 11:05:59,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 678 transitions, 8747 flow [2022-11-16 11:05:59,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 678 transitions, 8432 flow, removed 101 selfloop flow, removed 12 redundant places. [2022-11-16 11:05:59,841 INFO L231 Difference]: Finished difference. Result has 334 places, 543 transitions, 7307 flow [2022-11-16 11:05:59,841 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=5579, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=499, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7307, PETRI_PLACES=334, PETRI_TRANSITIONS=543} [2022-11-16 11:05:59,842 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 89 predicate places. [2022-11-16 11:05:59,842 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 543 transitions, 7307 flow [2022-11-16 11:05:59,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:05:59,843 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:05:59,843 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:59,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:05:59,843 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:05:59,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:59,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1228355224, now seen corresponding path program 6 times [2022-11-16 11:05:59,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:59,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530294674] [2022-11-16 11:05:59,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:59,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:02,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:02,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:02,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530294674] [2022-11-16 11:06:02,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530294674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:02,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:02,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:06:02,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252307773] [2022-11-16 11:06:02,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:02,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:06:02,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:02,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:06:02,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:06:02,127 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:06:02,130 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 543 transitions, 7307 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:02,130 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:02,130 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:06:02,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:05,910 INFO L130 PetriNetUnfolder]: 2238/4591 cut-off events. [2022-11-16 11:06:05,910 INFO L131 PetriNetUnfolder]: For 79829/80237 co-relation queries the response was YES. [2022-11-16 11:06:05,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30960 conditions, 4591 events. 2238/4591 cut-off events. For 79829/80237 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 29359 event pairs, 495 based on Foata normal form. 8/4506 useless extension candidates. Maximal degree in co-relation 30640. Up to 2136 conditions per place. [2022-11-16 11:06:05,951 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 433 selfloop transitions, 207 changer transitions 0/751 dead transitions. [2022-11-16 11:06:05,951 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 751 transitions, 10954 flow [2022-11-16 11:06:05,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:06:05,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:06:05,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2823 transitions. [2022-11-16 11:06:05,957 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5714574898785425 [2022-11-16 11:06:05,957 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2823 transitions. [2022-11-16 11:06:05,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2823 transitions. [2022-11-16 11:06:05,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:05,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2823 transitions. [2022-11-16 11:06:05,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.15) internal successors, (2823), 20 states have internal predecessors, (2823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:05,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:05,975 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:05,975 INFO L175 Difference]: Start difference. First operand has 334 places, 543 transitions, 7307 flow. Second operand 20 states and 2823 transitions. [2022-11-16 11:06:05,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 751 transitions, 10954 flow [2022-11-16 11:06:06,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 751 transitions, 10682 flow, removed 85 selfloop flow, removed 10 redundant places. [2022-11-16 11:06:06,325 INFO L231 Difference]: Finished difference. Result has 349 places, 575 transitions, 8420 flow [2022-11-16 11:06:06,326 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=7101, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8420, PETRI_PLACES=349, PETRI_TRANSITIONS=575} [2022-11-16 11:06:06,327 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 104 predicate places. [2022-11-16 11:06:06,327 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 575 transitions, 8420 flow [2022-11-16 11:06:06,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:06,328 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:06,328 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:06:06,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:06:06,329 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:06:06,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:06,329 INFO L85 PathProgramCache]: Analyzing trace with hash 55440128, now seen corresponding path program 7 times [2022-11-16 11:06:06,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:06,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630514714] [2022-11-16 11:06:06,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:06,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:08,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:08,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:08,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630514714] [2022-11-16 11:06:08,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630514714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:08,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:08,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:06:08,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277014324] [2022-11-16 11:06:08,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:08,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:06:08,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:08,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:06:08,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:06:08,415 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:06:08,417 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 575 transitions, 8420 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:08,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:08,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:06:08,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:12,205 INFO L130 PetriNetUnfolder]: 2462/5186 cut-off events. [2022-11-16 11:06:12,205 INFO L131 PetriNetUnfolder]: For 96041/96125 co-relation queries the response was YES. [2022-11-16 11:06:12,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36861 conditions, 5186 events. 2462/5186 cut-off events. For 96041/96125 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 34776 event pairs, 730 based on Foata normal form. 8/5108 useless extension candidates. Maximal degree in co-relation 36535. Up to 2775 conditions per place. [2022-11-16 11:06:12,260 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 398 selfloop transitions, 270 changer transitions 0/779 dead transitions. [2022-11-16 11:06:12,260 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 779 transitions, 12540 flow [2022-11-16 11:06:12,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:06:12,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 11:06:12,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2552 transitions. [2022-11-16 11:06:12,265 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5739991003148898 [2022-11-16 11:06:12,265 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2552 transitions. [2022-11-16 11:06:12,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2552 transitions. [2022-11-16 11:06:12,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:12,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2552 transitions. [2022-11-16 11:06:12,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 141.77777777777777) internal successors, (2552), 18 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:12,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:12,280 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:12,280 INFO L175 Difference]: Start difference. First operand has 349 places, 575 transitions, 8420 flow. Second operand 18 states and 2552 transitions. [2022-11-16 11:06:12,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 779 transitions, 12540 flow [2022-11-16 11:06:12,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 779 transitions, 12342 flow, removed 39 selfloop flow, removed 12 redundant places. [2022-11-16 11:06:12,710 INFO L231 Difference]: Finished difference. Result has 361 places, 655 transitions, 11409 flow [2022-11-16 11:06:12,711 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=8240, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=575, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=195, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=11409, PETRI_PLACES=361, PETRI_TRANSITIONS=655} [2022-11-16 11:06:12,712 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 116 predicate places. [2022-11-16 11:06:12,712 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 655 transitions, 11409 flow [2022-11-16 11:06:12,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:12,713 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:12,713 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:06:12,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:06:12,714 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:06:12,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:12,715 INFO L85 PathProgramCache]: Analyzing trace with hash 122936360, now seen corresponding path program 8 times [2022-11-16 11:06:12,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:12,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44681294] [2022-11-16 11:06:12,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:12,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:12,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:14,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:14,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:14,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44681294] [2022-11-16 11:06:14,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44681294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:14,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:14,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:06:14,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122322184] [2022-11-16 11:06:14,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:14,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:06:14,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:14,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:06:14,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:06:14,494 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:06:14,496 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 655 transitions, 11409 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:14,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:14,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:06:14,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:18,610 INFO L130 PetriNetUnfolder]: 2508/5077 cut-off events. [2022-11-16 11:06:18,610 INFO L131 PetriNetUnfolder]: For 120441/120567 co-relation queries the response was YES. [2022-11-16 11:06:18,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39957 conditions, 5077 events. 2508/5077 cut-off events. For 120441/120567 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 33216 event pairs, 274 based on Foata normal form. 8/5003 useless extension candidates. Maximal degree in co-relation 39624. Up to 2486 conditions per place. [2022-11-16 11:06:18,656 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 475 selfloop transitions, 262 changer transitions 0/848 dead transitions. [2022-11-16 11:06:18,656 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 848 transitions, 15279 flow [2022-11-16 11:06:18,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:06:18,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-16 11:06:18,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2686 transitions. [2022-11-16 11:06:18,661 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5723417856381845 [2022-11-16 11:06:18,661 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2686 transitions. [2022-11-16 11:06:18,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2686 transitions. [2022-11-16 11:06:18,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:18,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2686 transitions. [2022-11-16 11:06:18,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 141.3684210526316) internal successors, (2686), 19 states have internal predecessors, (2686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:18,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:18,673 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:18,673 INFO L175 Difference]: Start difference. First operand has 361 places, 655 transitions, 11409 flow. Second operand 19 states and 2686 transitions. [2022-11-16 11:06:18,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 848 transitions, 15279 flow [2022-11-16 11:06:19,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 848 transitions, 14715 flow, removed 256 selfloop flow, removed 9 redundant places. [2022-11-16 11:06:19,109 INFO L231 Difference]: Finished difference. Result has 375 places, 674 transitions, 12452 flow [2022-11-16 11:06:19,109 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=10982, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=655, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=12452, PETRI_PLACES=375, PETRI_TRANSITIONS=674} [2022-11-16 11:06:19,110 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 130 predicate places. [2022-11-16 11:06:19,110 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 674 transitions, 12452 flow [2022-11-16 11:06:19,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:19,111 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:19,111 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:06:19,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:06:19,111 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:06:19,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:19,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1031504102, now seen corresponding path program 9 times [2022-11-16 11:06:19,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:19,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018195858] [2022-11-16 11:06:19,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:19,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:20,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:20,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:20,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018195858] [2022-11-16 11:06:20,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018195858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:20,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:20,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:06:20,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343803879] [2022-11-16 11:06:20,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:20,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:06:20,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:20,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:06:20,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:06:20,878 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:06:20,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 674 transitions, 12452 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:20,880 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:20,880 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:06:20,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:25,007 INFO L130 PetriNetUnfolder]: 2746/5382 cut-off events. [2022-11-16 11:06:25,007 INFO L131 PetriNetUnfolder]: For 142754/142838 co-relation queries the response was YES. [2022-11-16 11:06:25,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45718 conditions, 5382 events. 2746/5382 cut-off events. For 142754/142838 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 35093 event pairs, 246 based on Foata normal form. 8/5318 useless extension candidates. Maximal degree in co-relation 45380. Up to 3188 conditions per place. [2022-11-16 11:06:25,073 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 479 selfloop transitions, 293 changer transitions 0/883 dead transitions. [2022-11-16 11:06:25,073 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 883 transitions, 17037 flow [2022-11-16 11:06:25,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:06:25,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 11:06:25,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2551 transitions. [2022-11-16 11:06:25,078 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.573774179037337 [2022-11-16 11:06:25,078 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2551 transitions. [2022-11-16 11:06:25,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2551 transitions. [2022-11-16 11:06:25,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:25,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2551 transitions. [2022-11-16 11:06:25,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 141.72222222222223) internal successors, (2551), 18 states have internal predecessors, (2551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:25,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:25,093 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:25,093 INFO L175 Difference]: Start difference. First operand has 375 places, 674 transitions, 12452 flow. Second operand 18 states and 2551 transitions. [2022-11-16 11:06:25,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 883 transitions, 17037 flow [2022-11-16 11:06:25,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 883 transitions, 16833 flow, removed 40 selfloop flow, removed 12 redundant places. [2022-11-16 11:06:25,790 INFO L231 Difference]: Finished difference. Result has 387 places, 740 transitions, 15448 flow [2022-11-16 11:06:25,790 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=12254, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=674, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=231, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=15448, PETRI_PLACES=387, PETRI_TRANSITIONS=740} [2022-11-16 11:06:25,791 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 142 predicate places. [2022-11-16 11:06:25,791 INFO L495 AbstractCegarLoop]: Abstraction has has 387 places, 740 transitions, 15448 flow [2022-11-16 11:06:25,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:25,791 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:25,791 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:06:25,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:06:25,792 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:06:25,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:25,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1635161404, now seen corresponding path program 10 times [2022-11-16 11:06:25,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:25,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520918930] [2022-11-16 11:06:25,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:25,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:27,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:27,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:27,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520918930] [2022-11-16 11:06:27,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520918930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:27,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:27,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:06:27,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264184614] [2022-11-16 11:06:27,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:27,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:06:27,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:27,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:06:27,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:06:27,700 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:06:27,702 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 740 transitions, 15448 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:27,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:27,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:06:27,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:32,817 INFO L130 PetriNetUnfolder]: 2954/5719 cut-off events. [2022-11-16 11:06:32,817 INFO L131 PetriNetUnfolder]: For 187764/187869 co-relation queries the response was YES. [2022-11-16 11:06:32,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52734 conditions, 5719 events. 2954/5719 cut-off events. For 187764/187869 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 37767 event pairs, 225 based on Foata normal form. 8/5661 useless extension candidates. Maximal degree in co-relation 52389. Up to 3015 conditions per place. [2022-11-16 11:06:32,884 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 439 selfloop transitions, 425 changer transitions 0/975 dead transitions. [2022-11-16 11:06:32,884 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 975 transitions, 21235 flow [2022-11-16 11:06:32,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:06:32,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:06:32,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2814 transitions. [2022-11-16 11:06:32,888 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5696356275303643 [2022-11-16 11:06:32,888 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2814 transitions. [2022-11-16 11:06:32,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2814 transitions. [2022-11-16 11:06:32,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:32,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2814 transitions. [2022-11-16 11:06:32,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.7) internal successors, (2814), 20 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:32,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:32,900 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:32,900 INFO L175 Difference]: Start difference. First operand has 387 places, 740 transitions, 15448 flow. Second operand 20 states and 2814 transitions. [2022-11-16 11:06:32,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 975 transitions, 21235 flow [2022-11-16 11:06:34,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 975 transitions, 21078 flow, removed 50 selfloop flow, removed 10 redundant places. [2022-11-16 11:06:34,063 INFO L231 Difference]: Finished difference. Result has 406 places, 843 transitions, 19876 flow [2022-11-16 11:06:34,064 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=15318, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=740, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=328, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=19876, PETRI_PLACES=406, PETRI_TRANSITIONS=843} [2022-11-16 11:06:34,064 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 161 predicate places. [2022-11-16 11:06:34,065 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 843 transitions, 19876 flow [2022-11-16 11:06:34,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:34,065 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:34,066 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:06:34,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:06:34,066 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:06:34,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:34,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1717714866, now seen corresponding path program 11 times [2022-11-16 11:06:34,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:34,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645910588] [2022-11-16 11:06:34,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:34,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:35,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:35,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:35,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645910588] [2022-11-16 11:06:35,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645910588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:35,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:35,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:06:35,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522834730] [2022-11-16 11:06:35,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:35,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:06:35,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:35,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:06:35,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:06:35,780 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:06:35,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 843 transitions, 19876 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:35,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:35,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:06:35,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:40,653 INFO L130 PetriNetUnfolder]: 2958/5941 cut-off events. [2022-11-16 11:06:40,653 INFO L131 PetriNetUnfolder]: For 211186/211312 co-relation queries the response was YES. [2022-11-16 11:06:40,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56696 conditions, 5941 events. 2958/5941 cut-off events. For 211186/211312 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 40399 event pairs, 278 based on Foata normal form. 8/5867 useless extension candidates. Maximal degree in co-relation 56341. Up to 2975 conditions per place. [2022-11-16 11:06:40,717 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 569 selfloop transitions, 337 changer transitions 0/1017 dead transitions. [2022-11-16 11:06:40,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 1017 transitions, 23549 flow [2022-11-16 11:06:40,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:06:40,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:06:40,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2821 transitions. [2022-11-16 11:06:40,723 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5710526315789474 [2022-11-16 11:06:40,723 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2821 transitions. [2022-11-16 11:06:40,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2821 transitions. [2022-11-16 11:06:40,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:40,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2821 transitions. [2022-11-16 11:06:40,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.05) internal successors, (2821), 20 states have internal predecessors, (2821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:40,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:40,735 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:40,735 INFO L175 Difference]: Start difference. First operand has 406 places, 843 transitions, 19876 flow. Second operand 20 states and 2821 transitions. [2022-11-16 11:06:40,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 1017 transitions, 23549 flow [2022-11-16 11:06:41,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 1017 transitions, 22977 flow, removed 273 selfloop flow, removed 8 redundant places. [2022-11-16 11:06:41,824 INFO L231 Difference]: Finished difference. Result has 421 places, 861 transitions, 20814 flow [2022-11-16 11:06:41,824 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=19324, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=843, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=322, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=513, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=20814, PETRI_PLACES=421, PETRI_TRANSITIONS=861} [2022-11-16 11:06:41,825 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 176 predicate places. [2022-11-16 11:06:41,825 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 861 transitions, 20814 flow [2022-11-16 11:06:41,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:41,826 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:41,826 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:06:41,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:06:41,826 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:06:41,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:41,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1489991590, now seen corresponding path program 12 times [2022-11-16 11:06:41,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:41,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423246671] [2022-11-16 11:06:41,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:41,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:43,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:43,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:43,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423246671] [2022-11-16 11:06:43,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423246671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:43,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:43,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:06:43,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59395411] [2022-11-16 11:06:43,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:43,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:06:43,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:43,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:06:43,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:06:43,652 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:06:43,654 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 861 transitions, 20814 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:43,654 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:43,654 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:06:43,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:49,587 INFO L130 PetriNetUnfolder]: 3061/6345 cut-off events. [2022-11-16 11:06:49,587 INFO L131 PetriNetUnfolder]: For 229843/229969 co-relation queries the response was YES. [2022-11-16 11:06:49,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60546 conditions, 6345 events. 3061/6345 cut-off events. For 229843/229969 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 44408 event pairs, 706 based on Foata normal form. 8/6264 useless extension candidates. Maximal degree in co-relation 60187. Up to 3548 conditions per place. [2022-11-16 11:06:49,678 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 567 selfloop transitions, 358 changer transitions 0/1036 dead transitions. [2022-11-16 11:06:49,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 1036 transitions, 24935 flow [2022-11-16 11:06:49,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:06:49,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:06:49,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2818 transitions. [2022-11-16 11:06:49,685 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5704453441295546 [2022-11-16 11:06:49,685 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2818 transitions. [2022-11-16 11:06:49,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2818 transitions. [2022-11-16 11:06:49,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:49,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2818 transitions. [2022-11-16 11:06:49,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.9) internal successors, (2818), 20 states have internal predecessors, (2818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:49,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:49,696 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:49,696 INFO L175 Difference]: Start difference. First operand has 421 places, 861 transitions, 20814 flow. Second operand 20 states and 2818 transitions. [2022-11-16 11:06:49,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 1036 transitions, 24935 flow [2022-11-16 11:06:50,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 1036 transitions, 24746 flow, removed 35 selfloop flow, removed 13 redundant places. [2022-11-16 11:06:50,918 INFO L231 Difference]: Finished difference. Result has 434 places, 900 transitions, 23424 flow [2022-11-16 11:06:50,919 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=20625, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=861, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=320, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=524, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=23424, PETRI_PLACES=434, PETRI_TRANSITIONS=900} [2022-11-16 11:06:50,919 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 189 predicate places. [2022-11-16 11:06:50,919 INFO L495 AbstractCegarLoop]: Abstraction has has 434 places, 900 transitions, 23424 flow [2022-11-16 11:06:50,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:50,920 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:50,920 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:06:50,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 11:06:50,920 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:06:50,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:50,921 INFO L85 PathProgramCache]: Analyzing trace with hash 775787818, now seen corresponding path program 13 times [2022-11-16 11:06:50,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:50,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804761500] [2022-11-16 11:06:50,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:50,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:52,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:52,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:52,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804761500] [2022-11-16 11:06:52,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804761500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:52,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:52,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:06:52,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674399968] [2022-11-16 11:06:52,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:52,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:06:52,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:52,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:06:52,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:06:52,880 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:06:52,882 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 900 transitions, 23424 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:52,882 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:52,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:06:52,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:58,474 INFO L130 PetriNetUnfolder]: 3228/6261 cut-off events. [2022-11-16 11:06:58,475 INFO L131 PetriNetUnfolder]: For 286199/286489 co-relation queries the response was YES. [2022-11-16 11:06:58,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67081 conditions, 6261 events. 3228/6261 cut-off events. For 286199/286489 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 42529 event pairs, 235 based on Foata normal form. 11/6231 useless extension candidates. Maximal degree in co-relation 66715. Up to 3614 conditions per place. [2022-11-16 11:06:58,566 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 582 selfloop transitions, 404 changer transitions 0/1097 dead transitions. [2022-11-16 11:06:58,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 1097 transitions, 28768 flow [2022-11-16 11:06:58,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:06:58,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:06:58,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2818 transitions. [2022-11-16 11:06:58,572 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5704453441295546 [2022-11-16 11:06:58,572 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2818 transitions. [2022-11-16 11:06:58,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2818 transitions. [2022-11-16 11:06:58,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:58,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2818 transitions. [2022-11-16 11:06:58,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.9) internal successors, (2818), 20 states have internal predecessors, (2818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:58,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:58,587 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:58,587 INFO L175 Difference]: Start difference. First operand has 434 places, 900 transitions, 23424 flow. Second operand 20 states and 2818 transitions. [2022-11-16 11:06:58,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 1097 transitions, 28768 flow [2022-11-16 11:07:00,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 1097 transitions, 28430 flow, removed 110 selfloop flow, removed 12 redundant places. [2022-11-16 11:07:00,418 INFO L231 Difference]: Finished difference. Result has 449 places, 964 transitions, 26846 flow [2022-11-16 11:07:00,419 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=23104, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=900, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=346, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=535, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=26846, PETRI_PLACES=449, PETRI_TRANSITIONS=964} [2022-11-16 11:07:00,419 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 204 predicate places. [2022-11-16 11:07:00,420 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 964 transitions, 26846 flow [2022-11-16 11:07:00,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:00,420 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:00,421 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:00,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 11:07:00,421 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:07:00,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:00,421 INFO L85 PathProgramCache]: Analyzing trace with hash -279861176, now seen corresponding path program 14 times [2022-11-16 11:07:00,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:00,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648566167] [2022-11-16 11:07:00,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:00,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:01,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:01,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:01,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648566167] [2022-11-16 11:07:01,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648566167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:01,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:01,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:07:01,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966451097] [2022-11-16 11:07:01,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:01,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:07:01,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:01,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:07:01,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:07:01,939 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:07:01,941 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 964 transitions, 26846 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:01,941 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:01,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:07:01,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:07,790 INFO L130 PetriNetUnfolder]: 3358/6544 cut-off events. [2022-11-16 11:07:07,790 INFO L131 PetriNetUnfolder]: For 332684/332894 co-relation queries the response was YES. [2022-11-16 11:07:07,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73749 conditions, 6544 events. 3358/6544 cut-off events. For 332684/332894 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 44857 event pairs, 259 based on Foata normal form. 10/6482 useless extension candidates. Maximal degree in co-relation 73375. Up to 3900 conditions per place. [2022-11-16 11:07:07,883 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 608 selfloop transitions, 424 changer transitions 0/1143 dead transitions. [2022-11-16 11:07:07,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 1143 transitions, 31948 flow [2022-11-16 11:07:07,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:07:07,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-16 11:07:07,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2685 transitions. [2022-11-16 11:07:07,888 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5721287023226082 [2022-11-16 11:07:07,888 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2685 transitions. [2022-11-16 11:07:07,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2685 transitions. [2022-11-16 11:07:07,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:07,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2685 transitions. [2022-11-16 11:07:07,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 141.31578947368422) internal successors, (2685), 19 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:07,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:07,899 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:07,900 INFO L175 Difference]: Start difference. First operand has 449 places, 964 transitions, 26846 flow. Second operand 19 states and 2685 transitions. [2022-11-16 11:07:07,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 1143 transitions, 31948 flow [2022-11-16 11:07:10,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 1143 transitions, 31370 flow, removed 271 selfloop flow, removed 9 redundant places. [2022-11-16 11:07:10,619 INFO L231 Difference]: Finished difference. Result has 465 places, 1017 transitions, 30321 flow [2022-11-16 11:07:10,621 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=26410, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=964, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=374, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=30321, PETRI_PLACES=465, PETRI_TRANSITIONS=1017} [2022-11-16 11:07:10,621 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 220 predicate places. [2022-11-16 11:07:10,621 INFO L495 AbstractCegarLoop]: Abstraction has has 465 places, 1017 transitions, 30321 flow [2022-11-16 11:07:10,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:10,622 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:10,622 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:10,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 11:07:10,623 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:07:10,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:10,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1549417170, now seen corresponding path program 15 times [2022-11-16 11:07:10,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:10,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391405454] [2022-11-16 11:07:10,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:10,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:12,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:12,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:12,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391405454] [2022-11-16 11:07:12,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391405454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:12,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:12,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:07:12,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010671150] [2022-11-16 11:07:12,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:12,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:07:12,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:12,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:07:12,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:07:12,337 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:07:12,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 1017 transitions, 30321 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:12,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:12,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:07:12,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:18,506 INFO L130 PetriNetUnfolder]: 3404/6798 cut-off events. [2022-11-16 11:07:18,506 INFO L131 PetriNetUnfolder]: For 364708/364913 co-relation queries the response was YES. [2022-11-16 11:07:18,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77399 conditions, 6798 events. 3404/6798 cut-off events. For 364708/364913 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 47748 event pairs, 510 based on Foata normal form. 10/6756 useless extension candidates. Maximal degree in co-relation 77018. Up to 3942 conditions per place. [2022-11-16 11:07:18,593 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 612 selfloop transitions, 438 changer transitions 0/1161 dead transitions. [2022-11-16 11:07:18,593 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 1161 transitions, 34049 flow [2022-11-16 11:07:18,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:07:18,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-16 11:07:18,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2682 transitions. [2022-11-16 11:07:18,596 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.571489452375879 [2022-11-16 11:07:18,597 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2682 transitions. [2022-11-16 11:07:18,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2682 transitions. [2022-11-16 11:07:18,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:18,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2682 transitions. [2022-11-16 11:07:18,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 141.1578947368421) internal successors, (2682), 19 states have internal predecessors, (2682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:18,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:18,607 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:18,607 INFO L175 Difference]: Start difference. First operand has 465 places, 1017 transitions, 30321 flow. Second operand 19 states and 2682 transitions. [2022-11-16 11:07:18,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 1161 transitions, 34049 flow [2022-11-16 11:07:21,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 1161 transitions, 33769 flow, removed 99 selfloop flow, removed 11 redundant places. [2022-11-16 11:07:21,171 INFO L231 Difference]: Finished difference. Result has 478 places, 1039 transitions, 32524 flow [2022-11-16 11:07:21,171 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=30042, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1017, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=416, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=588, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=32524, PETRI_PLACES=478, PETRI_TRANSITIONS=1039} [2022-11-16 11:07:21,172 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 233 predicate places. [2022-11-16 11:07:21,172 INFO L495 AbstractCegarLoop]: Abstraction has has 478 places, 1039 transitions, 32524 flow [2022-11-16 11:07:21,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:21,172 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:21,172 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:21,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 11:07:21,173 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:07:21,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:21,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1517041002, now seen corresponding path program 16 times [2022-11-16 11:07:21,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:21,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409744244] [2022-11-16 11:07:21,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:21,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:22,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:22,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:22,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409744244] [2022-11-16 11:07:22,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409744244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:22,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:22,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:07:22,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151161790] [2022-11-16 11:07:22,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:22,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:07:22,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:22,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:07:22,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:07:22,715 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:07:22,717 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 1039 transitions, 32524 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:22,717 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:22,717 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:07:22,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:29,659 INFO L130 PetriNetUnfolder]: 3528/6926 cut-off events. [2022-11-16 11:07:29,659 INFO L131 PetriNetUnfolder]: For 408395/408833 co-relation queries the response was YES. [2022-11-16 11:07:29,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82579 conditions, 6926 events. 3528/6926 cut-off events. For 408395/408833 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 48345 event pairs, 482 based on Foata normal form. 14/6896 useless extension candidates. Maximal degree in co-relation 82192. Up to 3950 conditions per place. [2022-11-16 11:07:29,748 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 613 selfloop transitions, 472 changer transitions 0/1196 dead transitions. [2022-11-16 11:07:29,748 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 497 places, 1196 transitions, 36560 flow [2022-11-16 11:07:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:07:29,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:07:29,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2819 transitions. [2022-11-16 11:07:29,752 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5706477732793522 [2022-11-16 11:07:29,752 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2819 transitions. [2022-11-16 11:07:29,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2819 transitions. [2022-11-16 11:07:29,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:29,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2819 transitions. [2022-11-16 11:07:29,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.95) internal successors, (2819), 20 states have internal predecessors, (2819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:29,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:29,759 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:29,759 INFO L175 Difference]: Start difference. First operand has 478 places, 1039 transitions, 32524 flow. Second operand 20 states and 2819 transitions. [2022-11-16 11:07:29,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 497 places, 1196 transitions, 36560 flow [2022-11-16 11:07:33,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 1196 transitions, 36297 flow, removed 103 selfloop flow, removed 10 redundant places. [2022-11-16 11:07:33,069 INFO L231 Difference]: Finished difference. Result has 491 places, 1066 transitions, 34494 flow [2022-11-16 11:07:33,069 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=32269, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1039, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=449, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=34494, PETRI_PLACES=491, PETRI_TRANSITIONS=1066} [2022-11-16 11:07:33,070 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 246 predicate places. [2022-11-16 11:07:33,070 INFO L495 AbstractCegarLoop]: Abstraction has has 491 places, 1066 transitions, 34494 flow [2022-11-16 11:07:33,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:33,070 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:33,071 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:33,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 11:07:33,071 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:07:33,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:33,071 INFO L85 PathProgramCache]: Analyzing trace with hash 350218474, now seen corresponding path program 17 times [2022-11-16 11:07:33,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:33,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055974838] [2022-11-16 11:07:33,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:33,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:34,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:34,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:34,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055974838] [2022-11-16 11:07:34,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055974838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:34,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:34,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:07:34,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386103380] [2022-11-16 11:07:34,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:34,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:07:34,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:34,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:07:34,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:07:34,569 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:07:34,571 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 1066 transitions, 34494 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:34,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:34,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:07:34,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:41,196 INFO L130 PetriNetUnfolder]: 3532/6954 cut-off events. [2022-11-16 11:07:41,196 INFO L131 PetriNetUnfolder]: For 433325/433763 co-relation queries the response was YES. [2022-11-16 11:07:41,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85036 conditions, 6954 events. 3532/6954 cut-off events. For 433325/433763 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 48777 event pairs, 500 based on Foata normal form. 14/6924 useless extension candidates. Maximal degree in co-relation 84645. Up to 4076 conditions per place. [2022-11-16 11:07:41,297 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 637 selfloop transitions, 464 changer transitions 0/1212 dead transitions. [2022-11-16 11:07:41,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 1212 transitions, 38228 flow [2022-11-16 11:07:41,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:07:41,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:07:41,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2820 transitions. [2022-11-16 11:07:41,301 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5708502024291497 [2022-11-16 11:07:41,301 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2820 transitions. [2022-11-16 11:07:41,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2820 transitions. [2022-11-16 11:07:41,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:41,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2820 transitions. [2022-11-16 11:07:41,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.0) internal successors, (2820), 20 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:41,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:41,310 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:41,310 INFO L175 Difference]: Start difference. First operand has 491 places, 1066 transitions, 34494 flow. Second operand 20 states and 2820 transitions. [2022-11-16 11:07:41,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 1212 transitions, 38228 flow [2022-11-16 11:07:44,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 1212 transitions, 37729 flow, removed 162 selfloop flow, removed 12 redundant places. [2022-11-16 11:07:44,239 INFO L231 Difference]: Finished difference. Result has 502 places, 1086 transitions, 36010 flow [2022-11-16 11:07:44,240 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=34079, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1066, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=447, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=611, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=36010, PETRI_PLACES=502, PETRI_TRANSITIONS=1086} [2022-11-16 11:07:44,240 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 257 predicate places. [2022-11-16 11:07:44,240 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 1086 transitions, 36010 flow [2022-11-16 11:07:44,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:44,241 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:44,241 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:44,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 11:07:44,241 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:07:44,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:44,241 INFO L85 PathProgramCache]: Analyzing trace with hash -486107910, now seen corresponding path program 18 times [2022-11-16 11:07:44,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:44,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672838203] [2022-11-16 11:07:44,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:44,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:45,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:45,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:45,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672838203] [2022-11-16 11:07:45,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672838203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:45,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:45,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:07:45,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838369397] [2022-11-16 11:07:45,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:45,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:07:45,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:45,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:07:45,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:07:45,974 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:07:45,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 1086 transitions, 36010 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:45,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:45,977 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:07:45,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:52,866 INFO L130 PetriNetUnfolder]: 3606/7080 cut-off events. [2022-11-16 11:07:52,867 INFO L131 PetriNetUnfolder]: For 453320/453758 co-relation queries the response was YES. [2022-11-16 11:07:52,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88814 conditions, 7080 events. 3606/7080 cut-off events. For 453320/453758 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 49771 event pairs, 500 based on Foata normal form. 14/7050 useless extension candidates. Maximal degree in co-relation 88419. Up to 4088 conditions per place. [2022-11-16 11:07:52,999 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 653 selfloop transitions, 482 changer transitions 0/1246 dead transitions. [2022-11-16 11:07:52,999 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 1246 transitions, 40486 flow [2022-11-16 11:07:52,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:07:52,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:07:53,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2822 transitions. [2022-11-16 11:07:53,003 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.571255060728745 [2022-11-16 11:07:53,003 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2822 transitions. [2022-11-16 11:07:53,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2822 transitions. [2022-11-16 11:07:53,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:53,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2822 transitions. [2022-11-16 11:07:53,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.1) internal successors, (2822), 20 states have internal predecessors, (2822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:53,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:53,013 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:53,014 INFO L175 Difference]: Start difference. First operand has 502 places, 1086 transitions, 36010 flow. Second operand 20 states and 2822 transitions. [2022-11-16 11:07:53,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 1246 transitions, 40486 flow [2022-11-16 11:07:56,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 1246 transitions, 40206 flow, removed 34 selfloop flow, removed 13 redundant places. [2022-11-16 11:07:57,019 INFO L231 Difference]: Finished difference. Result has 513 places, 1118 transitions, 38344 flow [2022-11-16 11:07:57,020 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=35740, PETRI_DIFFERENCE_MINUEND_PLACES=489, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1086, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=453, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=619, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=38344, PETRI_PLACES=513, PETRI_TRANSITIONS=1118} [2022-11-16 11:07:57,020 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 268 predicate places. [2022-11-16 11:07:57,021 INFO L495 AbstractCegarLoop]: Abstraction has has 513 places, 1118 transitions, 38344 flow [2022-11-16 11:07:57,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:57,021 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:57,022 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:57,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 11:07:57,022 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:07:57,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:57,022 INFO L85 PathProgramCache]: Analyzing trace with hash 386443478, now seen corresponding path program 19 times [2022-11-16 11:07:57,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:57,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655100826] [2022-11-16 11:07:57,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:57,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:58,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:58,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:58,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655100826] [2022-11-16 11:07:58,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655100826] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:58,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:58,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:07:58,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207328781] [2022-11-16 11:07:58,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:58,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:07:58,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:58,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:07:58,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:07:58,913 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:07:58,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 1118 transitions, 38344 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:58,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:58,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:07:58,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:05,578 INFO L130 PetriNetUnfolder]: 3610/7180 cut-off events. [2022-11-16 11:08:05,578 INFO L131 PetriNetUnfolder]: For 476953/477158 co-relation queries the response was YES. [2022-11-16 11:08:05,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91510 conditions, 7180 events. 3610/7180 cut-off events. For 476953/477158 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 51050 event pairs, 520 based on Foata normal form. 10/7137 useless extension candidates. Maximal degree in co-relation 91110. Up to 4156 conditions per place. [2022-11-16 11:08:05,675 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 661 selfloop transitions, 488 changer transitions 0/1260 dead transitions. [2022-11-16 11:08:05,675 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 1260 transitions, 42224 flow [2022-11-16 11:08:05,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:08:05,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:08:05,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2817 transitions. [2022-11-16 11:08:05,679 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5702429149797571 [2022-11-16 11:08:05,680 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2817 transitions. [2022-11-16 11:08:05,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2817 transitions. [2022-11-16 11:08:05,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:05,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2817 transitions. [2022-11-16 11:08:05,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.85) internal successors, (2817), 20 states have internal predecessors, (2817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:05,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:05,688 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:05,689 INFO L175 Difference]: Start difference. First operand has 513 places, 1118 transitions, 38344 flow. Second operand 20 states and 2817 transitions. [2022-11-16 11:08:05,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 1260 transitions, 42224 flow [2022-11-16 11:08:08,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 520 places, 1260 transitions, 41587 flow, removed 225 selfloop flow, removed 12 redundant places. [2022-11-16 11:08:09,028 INFO L231 Difference]: Finished difference. Result has 524 places, 1138 transitions, 39859 flow [2022-11-16 11:08:09,030 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=37815, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=471, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=639, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=39859, PETRI_PLACES=524, PETRI_TRANSITIONS=1138} [2022-11-16 11:08:09,030 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 279 predicate places. [2022-11-16 11:08:09,030 INFO L495 AbstractCegarLoop]: Abstraction has has 524 places, 1138 transitions, 39859 flow [2022-11-16 11:08:09,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:09,031 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:09,032 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:09,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-16 11:08:09,032 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:08:09,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:09,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1578112080, now seen corresponding path program 20 times [2022-11-16 11:08:09,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:09,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349686298] [2022-11-16 11:08:09,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:09,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:10,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:10,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:10,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349686298] [2022-11-16 11:08:10,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349686298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:10,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:10,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:08:10,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340350243] [2022-11-16 11:08:10,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:10,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:08:10,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:10,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:08:10,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:08:10,538 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:08:10,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 1138 transitions, 39859 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:10,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:10,539 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:08:10,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:18,322 INFO L130 PetriNetUnfolder]: 3810/7476 cut-off events. [2022-11-16 11:08:18,322 INFO L131 PetriNetUnfolder]: For 518373/518811 co-relation queries the response was YES. [2022-11-16 11:08:18,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98248 conditions, 7476 events. 3810/7476 cut-off events. For 518373/518811 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 53353 event pairs, 516 based on Foata normal form. 11/7438 useless extension candidates. Maximal degree in co-relation 97844. Up to 4147 conditions per place. [2022-11-16 11:08:18,448 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 611 selfloop transitions, 608 changer transitions 0/1330 dead transitions. [2022-11-16 11:08:18,449 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 1330 transitions, 45861 flow [2022-11-16 11:08:18,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:08:18,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:08:18,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2822 transitions. [2022-11-16 11:08:18,453 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.571255060728745 [2022-11-16 11:08:18,453 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2822 transitions. [2022-11-16 11:08:18,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2822 transitions. [2022-11-16 11:08:18,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:18,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2822 transitions. [2022-11-16 11:08:18,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.1) internal successors, (2822), 20 states have internal predecessors, (2822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:18,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:18,462 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:18,463 INFO L175 Difference]: Start difference. First operand has 524 places, 1138 transitions, 39859 flow. Second operand 20 states and 2822 transitions. [2022-11-16 11:08:18,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 1330 transitions, 45861 flow [2022-11-16 11:08:22,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 530 places, 1330 transitions, 45593 flow, removed 34 selfloop flow, removed 13 redundant places. [2022-11-16 11:08:22,524 INFO L231 Difference]: Finished difference. Result has 539 places, 1212 transitions, 44700 flow [2022-11-16 11:08:22,525 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=39591, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=541, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=44700, PETRI_PLACES=539, PETRI_TRANSITIONS=1212} [2022-11-16 11:08:22,525 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 294 predicate places. [2022-11-16 11:08:22,525 INFO L495 AbstractCegarLoop]: Abstraction has has 539 places, 1212 transitions, 44700 flow [2022-11-16 11:08:22,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:22,526 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:22,526 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:22,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-16 11:08:22,527 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:08:22,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:22,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1978965522, now seen corresponding path program 21 times [2022-11-16 11:08:22,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:22,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586051452] [2022-11-16 11:08:22,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:22,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:23,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:23,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:23,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586051452] [2022-11-16 11:08:23,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586051452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:23,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:23,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:08:23,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667150121] [2022-11-16 11:08:23,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:23,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:08:23,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:23,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:08:23,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:08:23,826 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:08:23,828 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 1212 transitions, 44700 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:23,828 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:23,828 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:08:23,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:31,092 INFO L130 PetriNetUnfolder]: 3856/7562 cut-off events. [2022-11-16 11:08:31,092 INFO L131 PetriNetUnfolder]: For 576401/576839 co-relation queries the response was YES. [2022-11-16 11:08:31,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103048 conditions, 7562 events. 3856/7562 cut-off events. For 576401/576839 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 54167 event pairs, 512 based on Foata normal form. 11/7525 useless extension candidates. Maximal degree in co-relation 102635. Up to 4169 conditions per place. [2022-11-16 11:08:31,211 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 608 selfloop transitions, 630 changer transitions 0/1349 dead transitions. [2022-11-16 11:08:31,211 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 1349 transitions, 48860 flow [2022-11-16 11:08:31,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:08:31,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-16 11:08:31,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2678 transitions. [2022-11-16 11:08:31,215 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5706371191135734 [2022-11-16 11:08:31,215 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2678 transitions. [2022-11-16 11:08:31,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2678 transitions. [2022-11-16 11:08:31,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:31,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2678 transitions. [2022-11-16 11:08:31,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 140.94736842105263) internal successors, (2678), 19 states have internal predecessors, (2678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:31,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:31,225 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:31,225 INFO L175 Difference]: Start difference. First operand has 539 places, 1212 transitions, 44700 flow. Second operand 19 states and 2678 transitions. [2022-11-16 11:08:31,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 1349 transitions, 48860 flow [2022-11-16 11:08:35,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 548 places, 1349 transitions, 48249 flow, removed 273 selfloop flow, removed 9 redundant places. [2022-11-16 11:08:35,536 INFO L231 Difference]: Finished difference. Result has 554 places, 1234 transitions, 47267 flow [2022-11-16 11:08:35,538 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=44126, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=608, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=591, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=47267, PETRI_PLACES=554, PETRI_TRANSITIONS=1234} [2022-11-16 11:08:35,539 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 309 predicate places. [2022-11-16 11:08:35,539 INFO L495 AbstractCegarLoop]: Abstraction has has 554 places, 1234 transitions, 47267 flow [2022-11-16 11:08:35,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:35,539 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:35,540 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:35,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-16 11:08:35,540 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:08:35,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:35,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1542707644, now seen corresponding path program 22 times [2022-11-16 11:08:35,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:35,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23329931] [2022-11-16 11:08:35,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:35,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:35,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:37,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:37,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:37,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23329931] [2022-11-16 11:08:37,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23329931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:37,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:37,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:08:37,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549442003] [2022-11-16 11:08:37,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:37,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:08:37,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:37,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:08:37,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:08:37,097 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:08:37,099 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 554 places, 1234 transitions, 47267 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:37,099 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:37,099 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:08:37,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:45,639 INFO L130 PetriNetUnfolder]: 3959/7769 cut-off events. [2022-11-16 11:08:45,639 INFO L131 PetriNetUnfolder]: For 647063/647501 co-relation queries the response was YES. [2022-11-16 11:08:45,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108482 conditions, 7769 events. 3959/7769 cut-off events. For 647063/647501 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 56060 event pairs, 492 based on Foata normal form. 11/7732 useless extension candidates. Maximal degree in co-relation 108063. Up to 4289 conditions per place. [2022-11-16 11:08:45,777 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 632 selfloop transitions, 653 changer transitions 0/1396 dead transitions. [2022-11-16 11:08:45,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 573 places, 1396 transitions, 52367 flow [2022-11-16 11:08:45,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:08:45,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:08:45,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2819 transitions. [2022-11-16 11:08:45,781 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5706477732793522 [2022-11-16 11:08:45,781 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2819 transitions. [2022-11-16 11:08:45,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2819 transitions. [2022-11-16 11:08:45,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:45,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2819 transitions. [2022-11-16 11:08:45,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.95) internal successors, (2819), 20 states have internal predecessors, (2819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:45,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:45,790 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:45,790 INFO L175 Difference]: Start difference. First operand has 554 places, 1234 transitions, 47267 flow. Second operand 20 states and 2819 transitions. [2022-11-16 11:08:45,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 573 places, 1396 transitions, 52367 flow [2022-11-16 11:08:50,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 562 places, 1396 transitions, 51978 flow, removed 69 selfloop flow, removed 11 redundant places. [2022-11-16 11:08:50,381 INFO L231 Difference]: Finished difference. Result has 569 places, 1275 transitions, 50823 flow [2022-11-16 11:08:50,382 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=46880, PETRI_DIFFERENCE_MINUEND_PLACES=543, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=615, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=604, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=50823, PETRI_PLACES=569, PETRI_TRANSITIONS=1275} [2022-11-16 11:08:50,382 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 324 predicate places. [2022-11-16 11:08:50,383 INFO L495 AbstractCegarLoop]: Abstraction has has 569 places, 1275 transitions, 50823 flow [2022-11-16 11:08:50,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:50,383 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:50,384 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:50,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-16 11:08:50,384 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:08:50,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:50,384 INFO L85 PathProgramCache]: Analyzing trace with hash 683815016, now seen corresponding path program 23 times [2022-11-16 11:08:50,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:50,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603913542] [2022-11-16 11:08:50,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:50,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:51,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:51,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:51,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603913542] [2022-11-16 11:08:51,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603913542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:51,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:51,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:08:51,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801904173] [2022-11-16 11:08:51,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:51,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:08:51,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:51,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:08:51,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:08:51,721 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 11:08:51,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 569 places, 1275 transitions, 50823 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:51,724 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:51,724 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 11:08:51,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand