./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/sssc12_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_10fdf176-e15b-4aa4-a06e-c015f73cedd4/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fdf176-e15b-4aa4-a06e-c015f73cedd4/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fdf176-e15b-4aa4-a06e-c015f73cedd4/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fdf176-e15b-4aa4-a06e-c015f73cedd4/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/sssc12_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fdf176-e15b-4aa4-a06e-c015f73cedd4/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fdf176-e15b-4aa4-a06e-c015f73cedd4/bin/uautomizer-TMbwUNV5ro --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 7be74b3f1207f4387a275e1f4e0e57734d5f1b215282bd8d49efde8c6948d207 --- 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-8393723 [2022-11-18 18:49:44,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:49:44,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:49:44,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:49:44,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:49:44,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:49:44,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:49:44,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:49:44,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:49:44,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:49:44,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:49:44,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:49:44,320 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:49:44,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:49:44,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:49:44,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:49:44,324 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:49:44,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:49:44,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:49:44,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:49:44,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:49:44,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:49:44,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:49:44,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:49:44,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:49:44,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:49:44,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:49:44,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:49:44,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:49:44,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:49:44,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:49:44,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:49:44,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:49:44,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:49:44,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:49:44,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:49:44,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:49:44,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:49:44,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:49:44,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:49:44,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:49:44,387 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fdf176-e15b-4aa4-a06e-c015f73cedd4/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 18:49:44,422 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:49:44,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:49:44,423 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:49:44,423 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:49:44,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:49:44,424 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:49:44,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:49:44,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:49:44,425 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:49:44,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:49:44,431 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:49:44,431 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:49:44,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:49:44,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:49:44,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:49:44,432 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:49:44,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:49:44,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:49:44,432 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 18:49:44,433 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:49:44,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:49:44,433 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:49:44,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:49:44,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:49:44,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:49:44,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:49:44,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:49:44,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:49:44,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:49:44,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:49:44,438 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:49:44,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:49:44,438 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:49:44,438 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:49:44,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:49:44,439 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_10fdf176-e15b-4aa4-a06e-c015f73cedd4/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fdf176-e15b-4aa4-a06e-c015f73cedd4/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7be74b3f1207f4387a275e1f4e0e57734d5f1b215282bd8d49efde8c6948d207 [2022-11-18 18:49:44,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:49:44,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:49:44,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:49:44,730 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:49:44,731 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:49:44,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fdf176-e15b-4aa4-a06e-c015f73cedd4/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-lit/sssc12_variant.i [2022-11-18 18:49:44,798 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fdf176-e15b-4aa4-a06e-c015f73cedd4/bin/uautomizer-TMbwUNV5ro/data/14e0f8cc0/27e62f61cb124b019d448cd8889789fc/FLAG7f0811927 [2022-11-18 18:49:45,462 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:49:45,463 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fdf176-e15b-4aa4-a06e-c015f73cedd4/sv-benchmarks/c/pthread-lit/sssc12_variant.i [2022-11-18 18:49:45,478 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fdf176-e15b-4aa4-a06e-c015f73cedd4/bin/uautomizer-TMbwUNV5ro/data/14e0f8cc0/27e62f61cb124b019d448cd8889789fc/FLAG7f0811927 [2022-11-18 18:49:45,709 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fdf176-e15b-4aa4-a06e-c015f73cedd4/bin/uautomizer-TMbwUNV5ro/data/14e0f8cc0/27e62f61cb124b019d448cd8889789fc [2022-11-18 18:49:45,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:49:45,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:49:45,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:49:45,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:49:45,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:49:45,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:49:45" (1/1) ... [2022-11-18 18:49:45,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31bb5718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:45, skipping insertion in model container [2022-11-18 18:49:45,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:49:45" (1/1) ... [2022-11-18 18:49:45,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:49:45,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:49:46,310 WARN L234 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_10fdf176-e15b-4aa4-a06e-c015f73cedd4/sv-benchmarks/c/pthread-lit/sssc12_variant.i[46865,46878] [2022-11-18 18:49:46,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:49:46,352 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:49:46,383 WARN L234 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_10fdf176-e15b-4aa4-a06e-c015f73cedd4/sv-benchmarks/c/pthread-lit/sssc12_variant.i[46865,46878] [2022-11-18 18:49:46,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:49:46,444 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:49:46,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:46 WrapperNode [2022-11-18 18:49:46,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:49:46,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:49:46,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:49:46,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:49:46,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:46" (1/1) ... [2022-11-18 18:49:46,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:46" (1/1) ... [2022-11-18 18:49:46,499 INFO L138 Inliner]: procedures = 275, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 156 [2022-11-18 18:49:46,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:49:46,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:49:46,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:49:46,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:49:46,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:46" (1/1) ... [2022-11-18 18:49:46,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:46" (1/1) ... [2022-11-18 18:49:46,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:46" (1/1) ... [2022-11-18 18:49:46,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:46" (1/1) ... [2022-11-18 18:49:46,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:46" (1/1) ... [2022-11-18 18:49:46,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:46" (1/1) ... [2022-11-18 18:49:46,529 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:46" (1/1) ... [2022-11-18 18:49:46,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:46" (1/1) ... [2022-11-18 18:49:46,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:49:46,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:49:46,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:49:46,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:49:46,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:46" (1/1) ... [2022-11-18 18:49:46,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:49:46,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fdf176-e15b-4aa4-a06e-c015f73cedd4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:49:46,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fdf176-e15b-4aa4-a06e-c015f73cedd4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:49:46,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fdf176-e15b-4aa4-a06e-c015f73cedd4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:49:46,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 18:49:46,622 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2022-11-18 18:49:46,622 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2022-11-18 18:49:46,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:49:46,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:49:46,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 18:49:46,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:49:46,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:49:46,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 18:49:46,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:49:46,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:49:46,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:49:46,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:49:46,626 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:49:46,826 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:49:46,828 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:49:47,259 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:49:47,316 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:49:47,316 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 18:49:47,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:49:47 BoogieIcfgContainer [2022-11-18 18:49:47,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:49:47,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:49:47,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:49:47,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:49:47,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:49:45" (1/3) ... [2022-11-18 18:49:47,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce67794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:49:47, skipping insertion in model container [2022-11-18 18:49:47,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:46" (2/3) ... [2022-11-18 18:49:47,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce67794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:49:47, skipping insertion in model container [2022-11-18 18:49:47,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:49:47" (3/3) ... [2022-11-18 18:49:47,328 INFO L112 eAbstractionObserver]: Analyzing ICFG sssc12_variant.i [2022-11-18 18:49:47,337 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:49:47,348 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:49:47,348 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2022-11-18 18:49:47,348 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:49:47,422 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 18:49:47,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 167 transitions, 339 flow [2022-11-18 18:49:47,573 INFO L130 PetriNetUnfolder]: 7/179 cut-off events. [2022-11-18 18:49:47,573 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:49:47,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 179 events. 7/179 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 150 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 103. Up to 4 conditions per place. [2022-11-18 18:49:47,581 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 167 transitions, 339 flow [2022-11-18 18:49:47,587 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 164 places, 167 transitions, 339 flow [2022-11-18 18:49:47,598 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:49:47,606 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;@b40fdd4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:49:47,606 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2022-11-18 18:49:47,613 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2022-11-18 18:49:47,614 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:49:47,614 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:47,614 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] [2022-11-18 18:49:47,615 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 18:49:47,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:47,621 INFO L85 PathProgramCache]: Analyzing trace with hash 646296359, now seen corresponding path program 1 times [2022-11-18 18:49:47,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:47,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65232139] [2022-11-18 18:49:47,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:47,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:47,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:47,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:47,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65232139] [2022-11-18 18:49:47,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65232139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:47,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:47,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:47,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736610368] [2022-11-18 18:49:47,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:47,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:47,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:47,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:47,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:47,942 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 167 [2022-11-18 18:49:47,951 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 167 transitions, 339 flow. Second operand has 3 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:47,951 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:47,951 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 167 [2022-11-18 18:49:47,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:48,057 INFO L130 PetriNetUnfolder]: 2/154 cut-off events. [2022-11-18 18:49:48,058 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 18:49:48,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 154 events. 2/154 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 7/141 useless extension candidates. Maximal degree in co-relation 90. Up to 7 conditions per place. [2022-11-18 18:49:48,065 INFO L137 encePairwiseOnDemand]: 155/167 looper letters, 6 selfloop transitions, 2 changer transitions 1/150 dead transitions. [2022-11-18 18:49:48,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 150 transitions, 321 flow [2022-11-18 18:49:48,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:48,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:48,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 462 transitions. [2022-11-18 18:49:48,091 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9221556886227545 [2022-11-18 18:49:48,092 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 462 transitions. [2022-11-18 18:49:48,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 462 transitions. [2022-11-18 18:49:48,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:48,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 462 transitions. [2022-11-18 18:49:48,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,116 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,118 INFO L175 Difference]: Start difference. First operand has 164 places, 167 transitions, 339 flow. Second operand 3 states and 462 transitions. [2022-11-18 18:49:48,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 150 transitions, 321 flow [2022-11-18 18:49:48,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 150 transitions, 321 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:49:48,130 INFO L231 Difference]: Finished difference. Result has 153 places, 149 transitions, 307 flow [2022-11-18 18:49:48,133 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=307, PETRI_PLACES=153, PETRI_TRANSITIONS=149} [2022-11-18 18:49:48,139 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, -11 predicate places. [2022-11-18 18:49:48,139 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 149 transitions, 307 flow [2022-11-18 18:49:48,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,140 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:48,140 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] [2022-11-18 18:49:48,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:49:48,141 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 18:49:48,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:48,143 INFO L85 PathProgramCache]: Analyzing trace with hash -259616743, now seen corresponding path program 1 times [2022-11-18 18:49:48,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:48,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890616032] [2022-11-18 18:49:48,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:48,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:48,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:48,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:48,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890616032] [2022-11-18 18:49:48,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890616032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:48,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:48,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:48,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756518284] [2022-11-18 18:49:48,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:48,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:48,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:48,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:48,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:48,259 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 167 [2022-11-18 18:49:48,260 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 149 transitions, 307 flow. Second operand has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:48,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 167 [2022-11-18 18:49:48,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:48,324 INFO L130 PetriNetUnfolder]: 2/152 cut-off events. [2022-11-18 18:49:48,324 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 18:49:48,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 152 events. 2/152 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 149. Up to 19 conditions per place. [2022-11-18 18:49:48,325 INFO L137 encePairwiseOnDemand]: 164/167 looper letters, 18 selfloop transitions, 2 changer transitions 0/148 dead transitions. [2022-11-18 18:49:48,326 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 148 transitions, 345 flow [2022-11-18 18:49:48,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:48,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:48,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 429 transitions. [2022-11-18 18:49:48,328 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8562874251497006 [2022-11-18 18:49:48,328 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 429 transitions. [2022-11-18 18:49:48,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 429 transitions. [2022-11-18 18:49:48,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:48,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 429 transitions. [2022-11-18 18:49:48,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,333 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,333 INFO L175 Difference]: Start difference. First operand has 153 places, 149 transitions, 307 flow. Second operand 3 states and 429 transitions. [2022-11-18 18:49:48,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 148 transitions, 345 flow [2022-11-18 18:49:48,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 148 transitions, 341 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:49:48,338 INFO L231 Difference]: Finished difference. Result has 151 places, 148 transitions, 305 flow [2022-11-18 18:49:48,339 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=305, PETRI_PLACES=151, PETRI_TRANSITIONS=148} [2022-11-18 18:49:48,340 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, -13 predicate places. [2022-11-18 18:49:48,340 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 148 transitions, 305 flow [2022-11-18 18:49:48,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,341 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:48,341 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:48,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:49:48,341 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 18:49:48,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:48,342 INFO L85 PathProgramCache]: Analyzing trace with hash -900896030, now seen corresponding path program 1 times [2022-11-18 18:49:48,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:48,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153585518] [2022-11-18 18:49:48,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:48,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:48,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:48,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:48,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153585518] [2022-11-18 18:49:48,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153585518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:48,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:48,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:48,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968279177] [2022-11-18 18:49:48,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:48,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:48,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:48,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:48,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:48,402 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 167 [2022-11-18 18:49:48,402 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 148 transitions, 305 flow. Second operand has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:48,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 167 [2022-11-18 18:49:48,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:48,454 INFO L130 PetriNetUnfolder]: 2/151 cut-off events. [2022-11-18 18:49:48,454 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 18:49:48,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 151 events. 2/151 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 140. Up to 16 conditions per place. [2022-11-18 18:49:48,455 INFO L137 encePairwiseOnDemand]: 164/167 looper letters, 15 selfloop transitions, 2 changer transitions 0/147 dead transitions. [2022-11-18 18:49:48,456 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 147 transitions, 337 flow [2022-11-18 18:49:48,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:48,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:48,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2022-11-18 18:49:48,458 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8682634730538922 [2022-11-18 18:49:48,458 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 435 transitions. [2022-11-18 18:49:48,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 435 transitions. [2022-11-18 18:49:48,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:48,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 435 transitions. [2022-11-18 18:49:48,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,462 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,462 INFO L175 Difference]: Start difference. First operand has 151 places, 148 transitions, 305 flow. Second operand 3 states and 435 transitions. [2022-11-18 18:49:48,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 147 transitions, 337 flow [2022-11-18 18:49:48,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 147 transitions, 333 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:49:48,466 INFO L231 Difference]: Finished difference. Result has 150 places, 147 transitions, 303 flow [2022-11-18 18:49:48,468 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=303, PETRI_PLACES=150, PETRI_TRANSITIONS=147} [2022-11-18 18:49:48,469 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, -14 predicate places. [2022-11-18 18:49:48,469 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 147 transitions, 303 flow [2022-11-18 18:49:48,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,470 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:48,470 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] [2022-11-18 18:49:48,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:49:48,471 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 18:49:48,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:48,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1097208890, now seen corresponding path program 1 times [2022-11-18 18:49:48,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:48,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426292019] [2022-11-18 18:49:48,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:48,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:48,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:48,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:48,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426292019] [2022-11-18 18:49:48,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426292019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:48,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:48,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:48,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559449180] [2022-11-18 18:49:48,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:48,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:48,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:48,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:48,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:48,522 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 167 [2022-11-18 18:49:48,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 147 transitions, 303 flow. Second operand has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:48,523 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 167 [2022-11-18 18:49:48,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:48,575 INFO L130 PetriNetUnfolder]: 2/148 cut-off events. [2022-11-18 18:49:48,575 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 18:49:48,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 148 events. 2/148 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 123. Up to 9 conditions per place. [2022-11-18 18:49:48,577 INFO L137 encePairwiseOnDemand]: 163/167 looper letters, 10 selfloop transitions, 1 changer transitions 0/144 dead transitions. [2022-11-18 18:49:48,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 144 transitions, 319 flow [2022-11-18 18:49:48,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:48,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:48,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 440 transitions. [2022-11-18 18:49:48,579 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8782435129740519 [2022-11-18 18:49:48,580 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 440 transitions. [2022-11-18 18:49:48,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 440 transitions. [2022-11-18 18:49:48,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:48,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 440 transitions. [2022-11-18 18:49:48,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,589 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,589 INFO L175 Difference]: Start difference. First operand has 150 places, 147 transitions, 303 flow. Second operand 3 states and 440 transitions. [2022-11-18 18:49:48,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 144 transitions, 319 flow [2022-11-18 18:49:48,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 144 transitions, 315 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:49:48,595 INFO L231 Difference]: Finished difference. Result has 147 places, 144 transitions, 295 flow [2022-11-18 18:49:48,595 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=295, PETRI_PLACES=147, PETRI_TRANSITIONS=144} [2022-11-18 18:49:48,597 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, -17 predicate places. [2022-11-18 18:49:48,602 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 144 transitions, 295 flow [2022-11-18 18:49:48,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,603 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:48,603 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:48,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:49:48,604 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 18:49:48,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:48,604 INFO L85 PathProgramCache]: Analyzing trace with hash 865260037, now seen corresponding path program 1 times [2022-11-18 18:49:48,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:48,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116167477] [2022-11-18 18:49:48,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:48,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:48,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:48,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:48,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116167477] [2022-11-18 18:49:48,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116167477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:48,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:48,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:48,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501650774] [2022-11-18 18:49:48,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:48,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:48,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:48,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:48,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:48,736 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 167 [2022-11-18 18:49:48,736 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 144 transitions, 295 flow. Second operand has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,737 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:48,737 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 167 [2022-11-18 18:49:48,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:48,807 INFO L130 PetriNetUnfolder]: 2/147 cut-off events. [2022-11-18 18:49:48,807 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 18:49:48,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 147 events. 2/147 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 128. Up to 16 conditions per place. [2022-11-18 18:49:48,808 INFO L137 encePairwiseOnDemand]: 164/167 looper letters, 15 selfloop transitions, 2 changer transitions 0/143 dead transitions. [2022-11-18 18:49:48,808 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 143 transitions, 327 flow [2022-11-18 18:49:48,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:48,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:48,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2022-11-18 18:49:48,811 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8682634730538922 [2022-11-18 18:49:48,811 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 435 transitions. [2022-11-18 18:49:48,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 435 transitions. [2022-11-18 18:49:48,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:48,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 435 transitions. [2022-11-18 18:49:48,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,816 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,816 INFO L175 Difference]: Start difference. First operand has 147 places, 144 transitions, 295 flow. Second operand 3 states and 435 transitions. [2022-11-18 18:49:48,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 143 transitions, 327 flow [2022-11-18 18:49:48,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 143 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:49:48,820 INFO L231 Difference]: Finished difference. Result has 147 places, 143 transitions, 296 flow [2022-11-18 18:49:48,821 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=147, PETRI_TRANSITIONS=143} [2022-11-18 18:49:48,824 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, -17 predicate places. [2022-11-18 18:49:48,824 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 143 transitions, 296 flow [2022-11-18 18:49:48,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:48,825 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:48,825 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:48,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:49:48,826 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 18:49:48,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:48,831 INFO L85 PathProgramCache]: Analyzing trace with hash 825338466, now seen corresponding path program 1 times [2022-11-18 18:49:48,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:48,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972701094] [2022-11-18 18:49:48,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:48,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:49:48,882 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:49:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:49:48,963 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:49:48,963 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:49:48,964 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2022-11-18 18:49:48,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2022-11-18 18:49:48,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2022-11-18 18:49:48,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2022-11-18 18:49:48,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2022-11-18 18:49:48,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2022-11-18 18:49:48,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2022-11-18 18:49:48,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2022-11-18 18:49:48,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2022-11-18 18:49:48,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2022-11-18 18:49:48,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2022-11-18 18:49:48,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2022-11-18 18:49:48,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2022-11-18 18:49:48,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2022-11-18 18:49:48,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2022-11-18 18:49:48,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2022-11-18 18:49:48,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2022-11-18 18:49:48,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2022-11-18 18:49:48,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2022-11-18 18:49:48,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2022-11-18 18:49:48,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2022-11-18 18:49:48,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2022-11-18 18:49:48,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2022-11-18 18:49:48,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2022-11-18 18:49:48,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2022-11-18 18:49:48,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2022-11-18 18:49:48,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2022-11-18 18:49:48,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2022-11-18 18:49:48,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2022-11-18 18:49:48,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2022-11-18 18:49:48,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2022-11-18 18:49:48,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2022-11-18 18:49:48,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2022-11-18 18:49:48,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2022-11-18 18:49:48,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2022-11-18 18:49:48,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2022-11-18 18:49:48,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2022-11-18 18:49:48,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:49:48,982 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-18 18:49:48,985 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 18:49:48,985 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-18 18:49:49,076 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 18:49:49,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 257 transitions, 526 flow [2022-11-18 18:49:49,171 INFO L130 PetriNetUnfolder]: 12/283 cut-off events. [2022-11-18 18:49:49,171 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 18:49:49,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 283 events. 12/283 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 552 event pairs, 0 based on Foata normal form. 0/232 useless extension candidates. Maximal degree in co-relation 192. Up to 6 conditions per place. [2022-11-18 18:49:49,177 INFO L82 GeneralOperation]: Start removeDead. Operand has 252 places, 257 transitions, 526 flow [2022-11-18 18:49:49,183 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 252 places, 257 transitions, 526 flow [2022-11-18 18:49:49,185 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:49:49,194 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;@b40fdd4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:49:49,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2022-11-18 18:49:49,198 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2022-11-18 18:49:49,198 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:49:49,199 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:49,199 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] [2022-11-18 18:49:49,199 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 18:49:49,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:49,200 INFO L85 PathProgramCache]: Analyzing trace with hash -254925657, now seen corresponding path program 1 times [2022-11-18 18:49:49,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:49,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071350613] [2022-11-18 18:49:49,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:49,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:49,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:49,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:49,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071350613] [2022-11-18 18:49:49,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071350613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:49,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:49,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:49,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789072391] [2022-11-18 18:49:49,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:49,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:49,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:49,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:49,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:49,254 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 257 [2022-11-18 18:49:49,255 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 257 transitions, 526 flow. Second operand has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:49,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:49,256 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 257 [2022-11-18 18:49:49,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:49,372 INFO L130 PetriNetUnfolder]: 14/429 cut-off events. [2022-11-18 18:49:49,372 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-18 18:49:49,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 429 events. 14/429 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1465 event pairs, 6 based on Foata normal form. 25/390 useless extension candidates. Maximal degree in co-relation 163. Up to 22 conditions per place. [2022-11-18 18:49:49,379 INFO L137 encePairwiseOnDemand]: 239/257 looper letters, 9 selfloop transitions, 2 changer transitions 1/233 dead transitions. [2022-11-18 18:49:49,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 233 transitions, 500 flow [2022-11-18 18:49:49,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:49,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:49,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 711 transitions. [2022-11-18 18:49:49,381 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9221789883268483 [2022-11-18 18:49:49,381 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 711 transitions. [2022-11-18 18:49:49,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 711 transitions. [2022-11-18 18:49:49,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:49,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 711 transitions. [2022-11-18 18:49:49,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 237.0) internal successors, (711), 3 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:49,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:49,387 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:49,387 INFO L175 Difference]: Start difference. First operand has 252 places, 257 transitions, 526 flow. Second operand 3 states and 711 transitions. [2022-11-18 18:49:49,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 233 transitions, 500 flow [2022-11-18 18:49:49,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 233 transitions, 498 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-11-18 18:49:49,393 INFO L231 Difference]: Finished difference. Result has 236 places, 232 transitions, 478 flow [2022-11-18 18:49:49,394 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=478, PETRI_PLACES=236, PETRI_TRANSITIONS=232} [2022-11-18 18:49:49,396 INFO L288 CegarLoopForPetriNet]: 252 programPoint places, -16 predicate places. [2022-11-18 18:49:49,396 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 232 transitions, 478 flow [2022-11-18 18:49:49,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:49,397 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:49,397 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] [2022-11-18 18:49:49,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:49:49,397 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 18:49:49,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:49,398 INFO L85 PathProgramCache]: Analyzing trace with hash 266821466, now seen corresponding path program 1 times [2022-11-18 18:49:49,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:49,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307270319] [2022-11-18 18:49:49,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:49,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:49,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:49,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:49,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307270319] [2022-11-18 18:49:49,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307270319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:49,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:49,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:49,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183563349] [2022-11-18 18:49:49,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:49,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:49,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:49,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:49,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:49,447 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 257 [2022-11-18 18:49:49,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 232 transitions, 478 flow. Second operand has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:49,449 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:49,449 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 257 [2022-11-18 18:49:49,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:49,815 INFO L130 PetriNetUnfolder]: 255/1494 cut-off events. [2022-11-18 18:49:49,815 INFO L131 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2022-11-18 18:49:49,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2023 conditions, 1494 events. 255/1494 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 10502 event pairs, 210 based on Foata normal form. 0/1206 useless extension candidates. Maximal degree in co-relation 1990. Up to 471 conditions per place. [2022-11-18 18:49:49,831 INFO L137 encePairwiseOnDemand]: 254/257 looper letters, 33 selfloop transitions, 2 changer transitions 0/231 dead transitions. [2022-11-18 18:49:49,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 231 transitions, 546 flow [2022-11-18 18:49:49,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:49,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:49,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 648 transitions. [2022-11-18 18:49:49,834 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8404669260700389 [2022-11-18 18:49:49,834 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 648 transitions. [2022-11-18 18:49:49,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 648 transitions. [2022-11-18 18:49:49,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:49,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 648 transitions. [2022-11-18 18:49:49,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 216.0) internal successors, (648), 3 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:49,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:49,841 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:49,841 INFO L175 Difference]: Start difference. First operand has 236 places, 232 transitions, 478 flow. Second operand 3 states and 648 transitions. [2022-11-18 18:49:49,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 231 transitions, 546 flow [2022-11-18 18:49:49,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 231 transitions, 542 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:49:49,847 INFO L231 Difference]: Finished difference. Result has 234 places, 231 transitions, 476 flow [2022-11-18 18:49:49,848 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=476, PETRI_PLACES=234, PETRI_TRANSITIONS=231} [2022-11-18 18:49:49,849 INFO L288 CegarLoopForPetriNet]: 252 programPoint places, -18 predicate places. [2022-11-18 18:49:49,849 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 231 transitions, 476 flow [2022-11-18 18:49:49,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:49,850 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:49,850 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:49,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:49:49,851 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 18:49:49,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:49,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1060621763, now seen corresponding path program 1 times [2022-11-18 18:49:49,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:49,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217914911] [2022-11-18 18:49:49,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:49,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:49,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:49,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:49,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217914911] [2022-11-18 18:49:49,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217914911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:49,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:49,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:49,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327348042] [2022-11-18 18:49:49,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:49,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:49,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:49,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:49,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:49,912 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 257 [2022-11-18 18:49:49,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 231 transitions, 476 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:49,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:49,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 257 [2022-11-18 18:49:49,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:50,110 INFO L130 PetriNetUnfolder]: 50/864 cut-off events. [2022-11-18 18:49:50,110 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-18 18:49:50,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 977 conditions, 864 events. 50/864 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5007 event pairs, 30 based on Foata normal form. 0/716 useless extension candidates. Maximal degree in co-relation 939. Up to 82 conditions per place. [2022-11-18 18:49:50,118 INFO L137 encePairwiseOnDemand]: 254/257 looper letters, 21 selfloop transitions, 2 changer transitions 0/230 dead transitions. [2022-11-18 18:49:50,118 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 230 transitions, 520 flow [2022-11-18 18:49:50,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:50,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:50,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 672 transitions. [2022-11-18 18:49:50,121 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8715953307392996 [2022-11-18 18:49:50,121 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 672 transitions. [2022-11-18 18:49:50,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 672 transitions. [2022-11-18 18:49:50,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:50,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 672 transitions. [2022-11-18 18:49:50,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,125 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,126 INFO L175 Difference]: Start difference. First operand has 234 places, 231 transitions, 476 flow. Second operand 3 states and 672 transitions. [2022-11-18 18:49:50,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 230 transitions, 520 flow [2022-11-18 18:49:50,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 230 transitions, 516 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:49:50,131 INFO L231 Difference]: Finished difference. Result has 233 places, 230 transitions, 474 flow [2022-11-18 18:49:50,131 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=474, PETRI_PLACES=233, PETRI_TRANSITIONS=230} [2022-11-18 18:49:50,133 INFO L288 CegarLoopForPetriNet]: 252 programPoint places, -19 predicate places. [2022-11-18 18:49:50,133 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 230 transitions, 474 flow [2022-11-18 18:49:50,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,133 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:50,133 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] [2022-11-18 18:49:50,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:49:50,134 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 18:49:50,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:50,134 INFO L85 PathProgramCache]: Analyzing trace with hash 543075943, now seen corresponding path program 1 times [2022-11-18 18:49:50,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:50,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014823918] [2022-11-18 18:49:50,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:50,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:50,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:50,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:50,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014823918] [2022-11-18 18:49:50,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014823918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:50,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:50,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:50,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581237954] [2022-11-18 18:49:50,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:50,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:50,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:50,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:50,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:50,168 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 257 [2022-11-18 18:49:50,169 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 230 transitions, 474 flow. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,169 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:50,170 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 257 [2022-11-18 18:49:50,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:50,319 INFO L130 PetriNetUnfolder]: 38/774 cut-off events. [2022-11-18 18:49:50,319 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-18 18:49:50,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 857 conditions, 774 events. 38/774 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4219 event pairs, 20 based on Foata normal form. 0/656 useless extension candidates. Maximal degree in co-relation 811. Up to 54 conditions per place. [2022-11-18 18:49:50,327 INFO L137 encePairwiseOnDemand]: 252/257 looper letters, 15 selfloop transitions, 1 changer transitions 0/226 dead transitions. [2022-11-18 18:49:50,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 226 transitions, 498 flow [2022-11-18 18:49:50,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:50,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:50,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 677 transitions. [2022-11-18 18:49:50,330 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8780804150453956 [2022-11-18 18:49:50,330 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 677 transitions. [2022-11-18 18:49:50,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 677 transitions. [2022-11-18 18:49:50,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:50,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 677 transitions. [2022-11-18 18:49:50,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 225.66666666666666) internal successors, (677), 3 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,335 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,335 INFO L175 Difference]: Start difference. First operand has 233 places, 230 transitions, 474 flow. Second operand 3 states and 677 transitions. [2022-11-18 18:49:50,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 226 transitions, 498 flow [2022-11-18 18:49:50,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 226 transitions, 494 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:49:50,340 INFO L231 Difference]: Finished difference. Result has 229 places, 226 transitions, 464 flow [2022-11-18 18:49:50,341 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=464, PETRI_PLACES=229, PETRI_TRANSITIONS=226} [2022-11-18 18:49:50,342 INFO L288 CegarLoopForPetriNet]: 252 programPoint places, -23 predicate places. [2022-11-18 18:49:50,342 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 226 transitions, 464 flow [2022-11-18 18:49:50,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,343 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:50,343 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:50,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 18:49:50,343 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 18:49:50,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:50,350 INFO L85 PathProgramCache]: Analyzing trace with hash -740922043, now seen corresponding path program 1 times [2022-11-18 18:49:50,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:50,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241959477] [2022-11-18 18:49:50,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:50,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:50,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:50,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:50,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241959477] [2022-11-18 18:49:50,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241959477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:50,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:50,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:50,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248267484] [2022-11-18 18:49:50,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:50,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:50,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:50,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:50,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:50,408 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 257 [2022-11-18 18:49:50,409 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 226 transitions, 464 flow. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,409 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:50,409 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 257 [2022-11-18 18:49:50,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:50,712 INFO L130 PetriNetUnfolder]: 162/1290 cut-off events. [2022-11-18 18:49:50,713 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-11-18 18:49:50,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1651 conditions, 1290 events. 162/1290 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 8027 event pairs, 132 based on Foata normal form. 0/1073 useless extension candidates. Maximal degree in co-relation 1606. Up to 312 conditions per place. [2022-11-18 18:49:50,724 INFO L137 encePairwiseOnDemand]: 254/257 looper letters, 27 selfloop transitions, 2 changer transitions 0/225 dead transitions. [2022-11-18 18:49:50,724 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 225 transitions, 520 flow [2022-11-18 18:49:50,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:50,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:50,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 660 transitions. [2022-11-18 18:49:50,727 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8560311284046692 [2022-11-18 18:49:50,727 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 660 transitions. [2022-11-18 18:49:50,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 660 transitions. [2022-11-18 18:49:50,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:50,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 660 transitions. [2022-11-18 18:49:50,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,732 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,732 INFO L175 Difference]: Start difference. First operand has 229 places, 226 transitions, 464 flow. Second operand 3 states and 660 transitions. [2022-11-18 18:49:50,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 225 transitions, 520 flow [2022-11-18 18:49:50,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 225 transitions, 519 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:49:50,737 INFO L231 Difference]: Finished difference. Result has 229 places, 225 transitions, 465 flow [2022-11-18 18:49:50,738 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=465, PETRI_PLACES=229, PETRI_TRANSITIONS=225} [2022-11-18 18:49:50,738 INFO L288 CegarLoopForPetriNet]: 252 programPoint places, -23 predicate places. [2022-11-18 18:49:50,738 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 225 transitions, 465 flow [2022-11-18 18:49:50,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,739 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:50,739 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:50,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 18:49:50,740 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 18:49:50,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:50,741 INFO L85 PathProgramCache]: Analyzing trace with hash -2105209945, now seen corresponding path program 1 times [2022-11-18 18:49:50,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:50,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363460625] [2022-11-18 18:49:50,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:50,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:50,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:50,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:50,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:50,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363460625] [2022-11-18 18:49:50,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363460625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:50,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:50,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:50,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631186144] [2022-11-18 18:49:50,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:50,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:50,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:50,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:50,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:50,791 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 257 [2022-11-18 18:49:50,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 225 transitions, 465 flow. Second operand has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:50,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 257 [2022-11-18 18:49:50,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:51,286 INFO L130 PetriNetUnfolder]: 254/2552 cut-off events. [2022-11-18 18:49:51,287 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2022-11-18 18:49:51,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3064 conditions, 2552 events. 254/2552 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 21921 event pairs, 83 based on Foata normal form. 0/2158 useless extension candidates. Maximal degree in co-relation 3018. Up to 280 conditions per place. [2022-11-18 18:49:51,310 INFO L137 encePairwiseOnDemand]: 237/257 looper letters, 41 selfloop transitions, 14 changer transitions 0/248 dead transitions. [2022-11-18 18:49:51,310 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 248 transitions, 626 flow [2022-11-18 18:49:51,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:51,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:51,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2022-11-18 18:49:51,312 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8845654993514915 [2022-11-18 18:49:51,313 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 682 transitions. [2022-11-18 18:49:51,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 682 transitions. [2022-11-18 18:49:51,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:51,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 682 transitions. [2022-11-18 18:49:51,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,317 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,318 INFO L175 Difference]: Start difference. First operand has 229 places, 225 transitions, 465 flow. Second operand 3 states and 682 transitions. [2022-11-18 18:49:51,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 248 transitions, 626 flow [2022-11-18 18:49:51,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 248 transitions, 622 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:49:51,323 INFO L231 Difference]: Finished difference. Result has 231 places, 239 transitions, 585 flow [2022-11-18 18:49:51,324 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=585, PETRI_PLACES=231, PETRI_TRANSITIONS=239} [2022-11-18 18:49:51,324 INFO L288 CegarLoopForPetriNet]: 252 programPoint places, -21 predicate places. [2022-11-18 18:49:51,325 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 239 transitions, 585 flow [2022-11-18 18:49:51,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,325 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:51,326 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:51,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 18:49:51,326 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-18 18:49:51,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:51,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1386812684, now seen corresponding path program 1 times [2022-11-18 18:49:51,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:51,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135871713] [2022-11-18 18:49:51,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:51,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:49:51,343 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:49:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:49:51,363 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:49:51,364 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:49:51,364 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 52 remaining) [2022-11-18 18:49:51,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (50 of 52 remaining) [2022-11-18 18:49:51,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (49 of 52 remaining) [2022-11-18 18:49:51,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (48 of 52 remaining) [2022-11-18 18:49:51,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (47 of 52 remaining) [2022-11-18 18:49:51,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (46 of 52 remaining) [2022-11-18 18:49:51,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (45 of 52 remaining) [2022-11-18 18:49:51,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (44 of 52 remaining) [2022-11-18 18:49:51,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (43 of 52 remaining) [2022-11-18 18:49:51,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (42 of 52 remaining) [2022-11-18 18:49:51,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (41 of 52 remaining) [2022-11-18 18:49:51,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (40 of 52 remaining) [2022-11-18 18:49:51,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (39 of 52 remaining) [2022-11-18 18:49:51,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (38 of 52 remaining) [2022-11-18 18:49:51,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (37 of 52 remaining) [2022-11-18 18:49:51,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (36 of 52 remaining) [2022-11-18 18:49:51,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (35 of 52 remaining) [2022-11-18 18:49:51,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (34 of 52 remaining) [2022-11-18 18:49:51,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (33 of 52 remaining) [2022-11-18 18:49:51,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (32 of 52 remaining) [2022-11-18 18:49:51,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (31 of 52 remaining) [2022-11-18 18:49:51,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (30 of 52 remaining) [2022-11-18 18:49:51,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (29 of 52 remaining) [2022-11-18 18:49:51,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (28 of 52 remaining) [2022-11-18 18:49:51,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (27 of 52 remaining) [2022-11-18 18:49:51,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (26 of 52 remaining) [2022-11-18 18:49:51,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (25 of 52 remaining) [2022-11-18 18:49:51,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (24 of 52 remaining) [2022-11-18 18:49:51,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (23 of 52 remaining) [2022-11-18 18:49:51,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (22 of 52 remaining) [2022-11-18 18:49:51,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (21 of 52 remaining) [2022-11-18 18:49:51,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (20 of 52 remaining) [2022-11-18 18:49:51,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (19 of 52 remaining) [2022-11-18 18:49:51,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (18 of 52 remaining) [2022-11-18 18:49:51,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (17 of 52 remaining) [2022-11-18 18:49:51,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (16 of 52 remaining) [2022-11-18 18:49:51,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (15 of 52 remaining) [2022-11-18 18:49:51,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (14 of 52 remaining) [2022-11-18 18:49:51,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (13 of 52 remaining) [2022-11-18 18:49:51,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (12 of 52 remaining) [2022-11-18 18:49:51,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (11 of 52 remaining) [2022-11-18 18:49:51,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 52 remaining) [2022-11-18 18:49:51,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (9 of 52 remaining) [2022-11-18 18:49:51,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (8 of 52 remaining) [2022-11-18 18:49:51,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (7 of 52 remaining) [2022-11-18 18:49:51,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (6 of 52 remaining) [2022-11-18 18:49:51,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (5 of 52 remaining) [2022-11-18 18:49:51,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (4 of 52 remaining) [2022-11-18 18:49:51,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (3 of 52 remaining) [2022-11-18 18:49:51,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (2 of 52 remaining) [2022-11-18 18:49:51,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (1 of 52 remaining) [2022-11-18 18:49:51,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (0 of 52 remaining) [2022-11-18 18:49:51,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 18:49:51,374 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:51,374 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 18:49:51,374 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-18 18:49:51,425 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 18:49:51,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 340 places, 347 transitions, 715 flow [2022-11-18 18:49:51,517 INFO L130 PetriNetUnfolder]: 17/387 cut-off events. [2022-11-18 18:49:51,518 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-18 18:49:51,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 403 conditions, 387 events. 17/387 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1091 event pairs, 0 based on Foata normal form. 0/315 useless extension candidates. Maximal degree in co-relation 287. Up to 8 conditions per place. [2022-11-18 18:49:51,524 INFO L82 GeneralOperation]: Start removeDead. Operand has 340 places, 347 transitions, 715 flow [2022-11-18 18:49:51,536 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 340 places, 347 transitions, 715 flow [2022-11-18 18:49:51,537 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:49:51,537 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;@b40fdd4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:49:51,537 INFO L358 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2022-11-18 18:49:51,540 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2022-11-18 18:49:51,540 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:49:51,540 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:51,540 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] [2022-11-18 18:49:51,540 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-11-18 18:49:51,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:51,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1202158887, now seen corresponding path program 1 times [2022-11-18 18:49:51,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:51,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030293488] [2022-11-18 18:49:51,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:51,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:51,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:51,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:51,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:51,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030293488] [2022-11-18 18:49:51,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030293488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:51,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:51,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:51,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243219182] [2022-11-18 18:49:51,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:51,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:51,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:51,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:51,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:51,584 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 347 [2022-11-18 18:49:51,586 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 347 transitions, 715 flow. Second operand has 3 states, 3 states have (on average 309.3333333333333) internal successors, (928), 3 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,586 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:51,586 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 347 [2022-11-18 18:49:51,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:51,881 INFO L130 PetriNetUnfolder]: 68/1272 cut-off events. [2022-11-18 18:49:51,881 INFO L131 PetriNetUnfolder]: For 91/91 co-relation queries the response was YES. [2022-11-18 18:49:51,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1437 conditions, 1272 events. 68/1272 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 8405 event pairs, 42 based on Foata normal form. 91/1167 useless extension candidates. Maximal degree in co-relation 460. Up to 85 conditions per place. [2022-11-18 18:49:51,908 INFO L137 encePairwiseOnDemand]: 323/347 looper letters, 12 selfloop transitions, 2 changer transitions 1/316 dead transitions. [2022-11-18 18:49:51,909 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 316 transitions, 681 flow [2022-11-18 18:49:51,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:51,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:51,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 960 transitions. [2022-11-18 18:49:51,933 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9221902017291066 [2022-11-18 18:49:51,933 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 960 transitions. [2022-11-18 18:49:51,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 960 transitions. [2022-11-18 18:49:51,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:51,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 960 transitions. [2022-11-18 18:49:51,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 320.0) internal successors, (960), 3 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,939 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,940 INFO L175 Difference]: Start difference. First operand has 340 places, 347 transitions, 715 flow. Second operand 3 states and 960 transitions. [2022-11-18 18:49:51,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 316 transitions, 681 flow [2022-11-18 18:49:51,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 316 transitions, 675 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-11-18 18:49:51,947 INFO L231 Difference]: Finished difference. Result has 319 places, 315 transitions, 649 flow [2022-11-18 18:49:51,948 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=649, PETRI_PLACES=319, PETRI_TRANSITIONS=315} [2022-11-18 18:49:51,949 INFO L288 CegarLoopForPetriNet]: 340 programPoint places, -21 predicate places. [2022-11-18 18:49:51,949 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 315 transitions, 649 flow [2022-11-18 18:49:51,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 309.3333333333333) internal successors, (928), 3 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,949 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:51,950 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] [2022-11-18 18:49:51,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 18:49:51,950 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-11-18 18:49:51,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:51,951 INFO L85 PathProgramCache]: Analyzing trace with hash 827208053, now seen corresponding path program 1 times [2022-11-18 18:49:51,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:51,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121631379] [2022-11-18 18:49:51,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:51,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:51,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:51,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:51,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121631379] [2022-11-18 18:49:51,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121631379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:51,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:51,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:51,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19509377] [2022-11-18 18:49:51,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:51,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:51,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:51,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:51,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:51,976 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 347 [2022-11-18 18:49:51,977 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 315 transitions, 649 flow. Second operand has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,978 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:51,978 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 347 [2022-11-18 18:49:51,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:56,915 INFO L130 PetriNetUnfolder]: 7401/24111 cut-off events. [2022-11-18 18:49:56,915 INFO L131 PetriNetUnfolder]: For 721/721 co-relation queries the response was YES. [2022-11-18 18:49:57,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35485 conditions, 24111 events. 7401/24111 cut-off events. For 721/721 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 285427 event pairs, 6510 based on Foata normal form. 0/18968 useless extension candidates. Maximal degree in co-relation 35451. Up to 10626 conditions per place. [2022-11-18 18:49:57,282 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 48 selfloop transitions, 2 changer transitions 0/314 dead transitions. [2022-11-18 18:49:57,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 314 transitions, 747 flow [2022-11-18 18:49:57,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:57,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:57,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 867 transitions. [2022-11-18 18:49:57,285 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8328530259365994 [2022-11-18 18:49:57,286 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 867 transitions. [2022-11-18 18:49:57,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 867 transitions. [2022-11-18 18:49:57,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:57,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 867 transitions. [2022-11-18 18:49:57,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:57,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:57,293 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:57,293 INFO L175 Difference]: Start difference. First operand has 319 places, 315 transitions, 649 flow. Second operand 3 states and 867 transitions. [2022-11-18 18:49:57,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 314 transitions, 747 flow [2022-11-18 18:49:57,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 314 transitions, 743 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:49:57,302 INFO L231 Difference]: Finished difference. Result has 317 places, 314 transitions, 647 flow [2022-11-18 18:49:57,303 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=647, PETRI_PLACES=317, PETRI_TRANSITIONS=314} [2022-11-18 18:49:57,304 INFO L288 CegarLoopForPetriNet]: 340 programPoint places, -23 predicate places. [2022-11-18 18:49:57,305 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 314 transitions, 647 flow [2022-11-18 18:49:57,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:57,305 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:57,306 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:57,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 18:49:57,306 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-11-18 18:49:57,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:57,307 INFO L85 PathProgramCache]: Analyzing trace with hash 283105726, now seen corresponding path program 1 times [2022-11-18 18:49:57,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:57,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291578014] [2022-11-18 18:49:57,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:57,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:57,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:57,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:57,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291578014] [2022-11-18 18:49:57,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291578014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:57,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:57,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:57,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843438048] [2022-11-18 18:49:57,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:57,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:57,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:57,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:57,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:57,350 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 347 [2022-11-18 18:49:57,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 314 transitions, 647 flow. Second operand has 3 states, 3 states have (on average 294.3333333333333) internal successors, (883), 3 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:57,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:57,352 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 347 [2022-11-18 18:49:57,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:58,431 INFO L130 PetriNetUnfolder]: 524/5469 cut-off events. [2022-11-18 18:49:58,431 INFO L131 PetriNetUnfolder]: For 127/127 co-relation queries the response was YES. [2022-11-18 18:49:58,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6279 conditions, 5469 events. 524/5469 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 58557 event pairs, 390 based on Foata normal form. 0/4459 useless extension candidates. Maximal degree in co-relation 6240. Up to 658 conditions per place. [2022-11-18 18:49:58,481 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 27 selfloop transitions, 2 changer transitions 0/313 dead transitions. [2022-11-18 18:49:58,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 313 transitions, 703 flow [2022-11-18 18:49:58,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:58,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:58,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 909 transitions. [2022-11-18 18:49:58,484 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8731988472622478 [2022-11-18 18:49:58,484 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 909 transitions. [2022-11-18 18:49:58,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 909 transitions. [2022-11-18 18:49:58,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:58,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 909 transitions. [2022-11-18 18:49:58,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:58,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:58,492 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:58,492 INFO L175 Difference]: Start difference. First operand has 317 places, 314 transitions, 647 flow. Second operand 3 states and 909 transitions. [2022-11-18 18:49:58,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 313 transitions, 703 flow [2022-11-18 18:49:58,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 313 transitions, 699 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:49:58,498 INFO L231 Difference]: Finished difference. Result has 316 places, 313 transitions, 645 flow [2022-11-18 18:49:58,499 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=645, PETRI_PLACES=316, PETRI_TRANSITIONS=313} [2022-11-18 18:49:58,499 INFO L288 CegarLoopForPetriNet]: 340 programPoint places, -24 predicate places. [2022-11-18 18:49:58,500 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 313 transitions, 645 flow [2022-11-18 18:49:58,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 294.3333333333333) internal successors, (883), 3 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:58,500 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:58,501 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] [2022-11-18 18:49:58,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 18:49:58,501 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-11-18 18:49:58,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:58,502 INFO L85 PathProgramCache]: Analyzing trace with hash -2021833822, now seen corresponding path program 1 times [2022-11-18 18:49:58,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:58,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183636127] [2022-11-18 18:49:58,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:58,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:58,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:58,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:58,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183636127] [2022-11-18 18:49:58,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183636127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:58,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:58,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:58,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398955186] [2022-11-18 18:49:58,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:58,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:58,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:58,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:58,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:58,529 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 347 [2022-11-18 18:49:58,531 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 313 transitions, 645 flow. Second operand has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:58,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:58,531 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 347 [2022-11-18 18:49:58,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:59,260 INFO L130 PetriNetUnfolder]: 324/4168 cut-off events. [2022-11-18 18:49:59,261 INFO L131 PetriNetUnfolder]: For 92/92 co-relation queries the response was YES. [2022-11-18 18:49:59,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4662 conditions, 4168 events. 324/4168 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 42116 event pairs, 220 based on Foata normal form. 0/3492 useless extension candidates. Maximal degree in co-relation 4615. Up to 379 conditions per place. [2022-11-18 18:49:59,344 INFO L137 encePairwiseOnDemand]: 341/347 looper letters, 20 selfloop transitions, 1 changer transitions 0/308 dead transitions. [2022-11-18 18:49:59,345 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 308 transitions, 677 flow [2022-11-18 18:49:59,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:59,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:59,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 914 transitions. [2022-11-18 18:49:59,348 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.878001921229587 [2022-11-18 18:49:59,349 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 914 transitions. [2022-11-18 18:49:59,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 914 transitions. [2022-11-18 18:49:59,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:59,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 914 transitions. [2022-11-18 18:49:59,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:59,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:59,357 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:59,357 INFO L175 Difference]: Start difference. First operand has 316 places, 313 transitions, 645 flow. Second operand 3 states and 914 transitions. [2022-11-18 18:49:59,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 308 transitions, 677 flow [2022-11-18 18:49:59,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 308 transitions, 673 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:49:59,365 INFO L231 Difference]: Finished difference. Result has 311 places, 308 transitions, 633 flow [2022-11-18 18:49:59,366 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=633, PETRI_PLACES=311, PETRI_TRANSITIONS=308} [2022-11-18 18:49:59,367 INFO L288 CegarLoopForPetriNet]: 340 programPoint places, -29 predicate places. [2022-11-18 18:49:59,367 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 308 transitions, 633 flow [2022-11-18 18:49:59,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:59,368 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:59,368 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:59,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 18:49:59,368 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-11-18 18:49:59,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:59,369 INFO L85 PathProgramCache]: Analyzing trace with hash 466230533, now seen corresponding path program 1 times [2022-11-18 18:49:59,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:59,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209737027] [2022-11-18 18:49:59,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:59,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:59,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:59,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:59,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209737027] [2022-11-18 18:49:59,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209737027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:59,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:59,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:59,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446766926] [2022-11-18 18:49:59,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:59,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:59,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:59,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:59,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:59,412 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 347 [2022-11-18 18:49:59,414 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 308 transitions, 633 flow. Second operand has 3 states, 3 states have (on average 282.3333333333333) internal successors, (847), 3 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:59,414 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:59,414 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 347 [2022-11-18 18:49:59,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:02,355 INFO L130 PetriNetUnfolder]: 3778/16890 cut-off events. [2022-11-18 18:50:02,355 INFO L131 PetriNetUnfolder]: For 469/469 co-relation queries the response was YES. [2022-11-18 18:50:02,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23008 conditions, 16890 events. 3778/16890 cut-off events. For 469/469 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 195712 event pairs, 3300 based on Foata normal form. 0/13621 useless extension candidates. Maximal degree in co-relation 22962. Up to 5624 conditions per place. [2022-11-18 18:50:02,517 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 39 selfloop transitions, 2 changer transitions 0/307 dead transitions. [2022-11-18 18:50:02,517 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 307 transitions, 713 flow [2022-11-18 18:50:02,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:02,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:02,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 885 transitions. [2022-11-18 18:50:02,523 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8501440922190202 [2022-11-18 18:50:02,524 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 885 transitions. [2022-11-18 18:50:02,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 885 transitions. [2022-11-18 18:50:02,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:02,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 885 transitions. [2022-11-18 18:50:02,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 295.0) internal successors, (885), 3 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:02,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:02,550 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:02,550 INFO L175 Difference]: Start difference. First operand has 311 places, 308 transitions, 633 flow. Second operand 3 states and 885 transitions. [2022-11-18 18:50:02,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 307 transitions, 713 flow [2022-11-18 18:50:02,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 307 transitions, 712 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:50:02,556 INFO L231 Difference]: Finished difference. Result has 311 places, 307 transitions, 634 flow [2022-11-18 18:50:02,557 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=634, PETRI_PLACES=311, PETRI_TRANSITIONS=307} [2022-11-18 18:50:02,558 INFO L288 CegarLoopForPetriNet]: 340 programPoint places, -29 predicate places. [2022-11-18 18:50:02,559 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 307 transitions, 634 flow [2022-11-18 18:50:02,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.3333333333333) internal successors, (847), 3 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:02,560 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:02,560 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:02,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 18:50:02,561 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-11-18 18:50:02,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:02,561 INFO L85 PathProgramCache]: Analyzing trace with hash -459775211, now seen corresponding path program 1 times [2022-11-18 18:50:02,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:02,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351120137] [2022-11-18 18:50:02,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:02,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:02,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:02,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:02,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351120137] [2022-11-18 18:50:02,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351120137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:02,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:02,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:02,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930462548] [2022-11-18 18:50:02,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:02,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:02,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:02,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:02,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:02,615 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 347 [2022-11-18 18:50:02,616 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 307 transitions, 634 flow. Second operand has 3 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:02,616 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:02,616 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 347 [2022-11-18 18:50:02,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:08,634 INFO L130 PetriNetUnfolder]: 8342/44003 cut-off events. [2022-11-18 18:50:08,634 INFO L131 PetriNetUnfolder]: For 721/721 co-relation queries the response was YES. [2022-11-18 18:50:08,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56928 conditions, 44003 events. 8342/44003 cut-off events. For 721/721 co-relation queries the response was YES. Maximal size of possible extension queue 1150. Compared 647186 event pairs, 3043 based on Foata normal form. 0/36430 useless extension candidates. Maximal degree in co-relation 56881. Up to 7470 conditions per place. [2022-11-18 18:50:09,083 INFO L137 encePairwiseOnDemand]: 317/347 looper letters, 61 selfloop transitions, 21 changer transitions 0/342 dead transitions. [2022-11-18 18:50:09,084 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 342 transitions, 878 flow [2022-11-18 18:50:09,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:09,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:09,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 916 transitions. [2022-11-18 18:50:09,087 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8799231508165226 [2022-11-18 18:50:09,087 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 916 transitions. [2022-11-18 18:50:09,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 916 transitions. [2022-11-18 18:50:09,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:09,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 916 transitions. [2022-11-18 18:50:09,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:09,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:09,093 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:09,094 INFO L175 Difference]: Start difference. First operand has 311 places, 307 transitions, 634 flow. Second operand 3 states and 916 transitions. [2022-11-18 18:50:09,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 342 transitions, 878 flow [2022-11-18 18:50:09,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 342 transitions, 874 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:09,105 INFO L231 Difference]: Finished difference. Result has 313 places, 328 transitions, 816 flow [2022-11-18 18:50:09,106 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=816, PETRI_PLACES=313, PETRI_TRANSITIONS=328} [2022-11-18 18:50:09,106 INFO L288 CegarLoopForPetriNet]: 340 programPoint places, -27 predicate places. [2022-11-18 18:50:09,106 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 328 transitions, 816 flow [2022-11-18 18:50:09,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:09,107 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:09,108 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:09,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 18:50:09,108 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-11-18 18:50:09,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:09,109 INFO L85 PathProgramCache]: Analyzing trace with hash -2062388031, now seen corresponding path program 1 times [2022-11-18 18:50:09,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:09,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478258884] [2022-11-18 18:50:09,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:09,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:50:09,154 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:50:09,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:50:09,173 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:50:09,174 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:50:09,174 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (66 of 67 remaining) [2022-11-18 18:50:09,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (65 of 67 remaining) [2022-11-18 18:50:09,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (64 of 67 remaining) [2022-11-18 18:50:09,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (63 of 67 remaining) [2022-11-18 18:50:09,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (62 of 67 remaining) [2022-11-18 18:50:09,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (61 of 67 remaining) [2022-11-18 18:50:09,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (60 of 67 remaining) [2022-11-18 18:50:09,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (59 of 67 remaining) [2022-11-18 18:50:09,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (58 of 67 remaining) [2022-11-18 18:50:09,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (57 of 67 remaining) [2022-11-18 18:50:09,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (56 of 67 remaining) [2022-11-18 18:50:09,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (55 of 67 remaining) [2022-11-18 18:50:09,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (54 of 67 remaining) [2022-11-18 18:50:09,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (53 of 67 remaining) [2022-11-18 18:50:09,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (52 of 67 remaining) [2022-11-18 18:50:09,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (51 of 67 remaining) [2022-11-18 18:50:09,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (50 of 67 remaining) [2022-11-18 18:50:09,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (49 of 67 remaining) [2022-11-18 18:50:09,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (48 of 67 remaining) [2022-11-18 18:50:09,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (47 of 67 remaining) [2022-11-18 18:50:09,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (46 of 67 remaining) [2022-11-18 18:50:09,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (45 of 67 remaining) [2022-11-18 18:50:09,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (44 of 67 remaining) [2022-11-18 18:50:09,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (43 of 67 remaining) [2022-11-18 18:50:09,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (42 of 67 remaining) [2022-11-18 18:50:09,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (41 of 67 remaining) [2022-11-18 18:50:09,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (40 of 67 remaining) [2022-11-18 18:50:09,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (39 of 67 remaining) [2022-11-18 18:50:09,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (38 of 67 remaining) [2022-11-18 18:50:09,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (37 of 67 remaining) [2022-11-18 18:50:09,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (36 of 67 remaining) [2022-11-18 18:50:09,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (35 of 67 remaining) [2022-11-18 18:50:09,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (34 of 67 remaining) [2022-11-18 18:50:09,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (33 of 67 remaining) [2022-11-18 18:50:09,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (32 of 67 remaining) [2022-11-18 18:50:09,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (31 of 67 remaining) [2022-11-18 18:50:09,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (30 of 67 remaining) [2022-11-18 18:50:09,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (29 of 67 remaining) [2022-11-18 18:50:09,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (28 of 67 remaining) [2022-11-18 18:50:09,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (27 of 67 remaining) [2022-11-18 18:50:09,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (26 of 67 remaining) [2022-11-18 18:50:09,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (25 of 67 remaining) [2022-11-18 18:50:09,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (24 of 67 remaining) [2022-11-18 18:50:09,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (23 of 67 remaining) [2022-11-18 18:50:09,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (22 of 67 remaining) [2022-11-18 18:50:09,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (21 of 67 remaining) [2022-11-18 18:50:09,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (20 of 67 remaining) [2022-11-18 18:50:09,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (19 of 67 remaining) [2022-11-18 18:50:09,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (18 of 67 remaining) [2022-11-18 18:50:09,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (17 of 67 remaining) [2022-11-18 18:50:09,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (16 of 67 remaining) [2022-11-18 18:50:09,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (15 of 67 remaining) [2022-11-18 18:50:09,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (14 of 67 remaining) [2022-11-18 18:50:09,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (13 of 67 remaining) [2022-11-18 18:50:09,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (12 of 67 remaining) [2022-11-18 18:50:09,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (11 of 67 remaining) [2022-11-18 18:50:09,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 67 remaining) [2022-11-18 18:50:09,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (9 of 67 remaining) [2022-11-18 18:50:09,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (8 of 67 remaining) [2022-11-18 18:50:09,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (7 of 67 remaining) [2022-11-18 18:50:09,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (6 of 67 remaining) [2022-11-18 18:50:09,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (5 of 67 remaining) [2022-11-18 18:50:09,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (4 of 67 remaining) [2022-11-18 18:50:09,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (3 of 67 remaining) [2022-11-18 18:50:09,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (2 of 67 remaining) [2022-11-18 18:50:09,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (1 of 67 remaining) [2022-11-18 18:50:09,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (0 of 67 remaining) [2022-11-18 18:50:09,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 18:50:09,186 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:09,187 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 18:50:09,187 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-11-18 18:50:09,245 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 18:50:09,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 428 places, 437 transitions, 906 flow [2022-11-18 18:50:09,371 INFO L130 PetriNetUnfolder]: 22/491 cut-off events. [2022-11-18 18:50:09,372 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-18 18:50:09,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 514 conditions, 491 events. 22/491 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1704 event pairs, 0 based on Foata normal form. 0/398 useless extension candidates. Maximal degree in co-relation 395. Up to 10 conditions per place. [2022-11-18 18:50:09,382 INFO L82 GeneralOperation]: Start removeDead. Operand has 428 places, 437 transitions, 906 flow [2022-11-18 18:50:09,390 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 428 places, 437 transitions, 906 flow [2022-11-18 18:50:09,392 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:50:09,392 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;@b40fdd4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:50:09,393 INFO L358 AbstractCegarLoop]: Starting to check reachability of 82 error locations. [2022-11-18 18:50:09,394 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2022-11-18 18:50:09,395 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:50:09,395 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:09,395 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] [2022-11-18 18:50:09,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-11-18 18:50:09,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:09,399 INFO L85 PathProgramCache]: Analyzing trace with hash 722582695, now seen corresponding path program 1 times [2022-11-18 18:50:09,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:09,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694399874] [2022-11-18 18:50:09,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:09,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:09,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:09,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:09,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694399874] [2022-11-18 18:50:09,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694399874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:09,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:09,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:09,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303103952] [2022-11-18 18:50:09,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:09,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:09,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:09,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:09,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:09,447 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 437 [2022-11-18 18:50:09,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 437 transitions, 906 flow. Second operand has 3 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:09,450 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:09,450 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 437 [2022-11-18 18:50:09,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:10,649 INFO L130 PetriNetUnfolder]: 284/3855 cut-off events. [2022-11-18 18:50:10,649 INFO L131 PetriNetUnfolder]: For 496/496 co-relation queries the response was YES. [2022-11-18 18:50:10,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4480 conditions, 3855 events. 284/3855 cut-off events. For 496/496 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 36638 event pairs, 204 based on Foata normal form. 339/3602 useless extension candidates. Maximal degree in co-relation 1396. Up to 328 conditions per place. [2022-11-18 18:50:10,754 INFO L137 encePairwiseOnDemand]: 407/437 looper letters, 15 selfloop transitions, 2 changer transitions 1/399 dead transitions. [2022-11-18 18:50:10,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 399 transitions, 864 flow [2022-11-18 18:50:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:10,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:10,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1209 transitions. [2022-11-18 18:50:10,759 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9221967963386728 [2022-11-18 18:50:10,760 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1209 transitions. [2022-11-18 18:50:10,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1209 transitions. [2022-11-18 18:50:10,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:10,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1209 transitions. [2022-11-18 18:50:10,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 403.0) internal successors, (1209), 3 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:10,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:10,770 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:10,770 INFO L175 Difference]: Start difference. First operand has 428 places, 437 transitions, 906 flow. Second operand 3 states and 1209 transitions. [2022-11-18 18:50:10,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 399 transitions, 864 flow [2022-11-18 18:50:10,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 399 transitions, 852 flow, removed 6 selfloop flow, removed 0 redundant places. [2022-11-18 18:50:10,782 INFO L231 Difference]: Finished difference. Result has 402 places, 398 transitions, 820 flow [2022-11-18 18:50:10,782 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=818, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=820, PETRI_PLACES=402, PETRI_TRANSITIONS=398} [2022-11-18 18:50:10,783 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -26 predicate places. [2022-11-18 18:50:10,783 INFO L495 AbstractCegarLoop]: Abstraction has has 402 places, 398 transitions, 820 flow [2022-11-18 18:50:10,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:10,784 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:10,784 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] [2022-11-18 18:50:10,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 18:50:10,785 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-11-18 18:50:10,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:10,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1421543018, now seen corresponding path program 1 times [2022-11-18 18:50:10,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:10,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848240770] [2022-11-18 18:50:10,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:10,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:10,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:10,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:10,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848240770] [2022-11-18 18:50:10,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848240770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:10,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:10,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:10,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481431857] [2022-11-18 18:50:10,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:10,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:10,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:10,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:10,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:10,847 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 437 [2022-11-18 18:50:10,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 398 transitions, 820 flow. Second operand has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:10,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:10,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 437 [2022-11-18 18:50:10,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand