./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/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_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/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_a7766b8c-bd19-4442-a41d-cf68206122bc/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 e9065224c0b163ad014fc0aee4009feab43ed37ef70e06d8d8f3b14d045f755a --- 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 19:49:16,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:49:16,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:49:16,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:49:16,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:49:16,251 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:49:16,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:49:16,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:49:16,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:49:16,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:49:16,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:49:16,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:49:16,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:49:16,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:49:16,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:49:16,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:49:16,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:49:16,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:49:16,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:49:16,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:49:16,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:49:16,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:49:16,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:49:16,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:49:16,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:49:16,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:49:16,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:49:16,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:49:16,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:49:16,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:49:16,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:49:16,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:49:16,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:49:16,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:49:16,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:49:16,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:49:16,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:49:16,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:49:16,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:49:16,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:49:16,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:49:16,327 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 19:49:16,369 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:49:16,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:49:16,370 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:49:16,370 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:49:16,372 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:49:16,372 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:49:16,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:49:16,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:49:16,373 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:49:16,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:49:16,375 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:49:16,375 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:49:16,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:49:16,376 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:49:16,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:49:16,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:49:16,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:49:16,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:49:16,378 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 19:49:16,378 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:49:16,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:49:16,379 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:49:16,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:49:16,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:49:16,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:49:16,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:49:16,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:49:16,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:49:16,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:49:16,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:49:16,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:49:16,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:49:16,382 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:49:16,382 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:49:16,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:49:16,383 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_a7766b8c-bd19-4442-a41d-cf68206122bc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9065224c0b163ad014fc0aee4009feab43ed37ef70e06d8d8f3b14d045f755a [2022-11-18 19:49:16,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:49:16,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:49:16,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:49:16,740 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:49:16,741 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:49:16,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2022-11-18 19:49:16,821 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/data/98c711877/7b3601608ca6465286fe6b60432515da/FLAG12d2da395 [2022-11-18 19:49:17,304 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:49:17,309 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2022-11-18 19:49:17,319 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/data/98c711877/7b3601608ca6465286fe6b60432515da/FLAG12d2da395 [2022-11-18 19:49:17,676 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/data/98c711877/7b3601608ca6465286fe6b60432515da [2022-11-18 19:49:17,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:49:17,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:49:17,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:49:17,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:49:17,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:49:17,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:49:17" (1/1) ... [2022-11-18 19:49:17,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1887b2ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:17, skipping insertion in model container [2022-11-18 19:49:17,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:49:17" (1/1) ... [2022-11-18 19:49:17,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:49:17,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:49:18,089 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_a7766b8c-bd19-4442-a41d-cf68206122bc/sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c[2566,2579] [2022-11-18 19:49:18,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:49:18,114 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:49:18,168 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_a7766b8c-bd19-4442-a41d-cf68206122bc/sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c[2566,2579] [2022-11-18 19:49:18,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:49:18,191 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:49:18,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:18 WrapperNode [2022-11-18 19:49:18,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:49:18,192 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:49:18,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:49:18,193 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:49:18,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:18" (1/1) ... [2022-11-18 19:49:18,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:18" (1/1) ... [2022-11-18 19:49:18,293 INFO L138 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 290 [2022-11-18 19:49:18,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:49:18,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:49:18,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:49:18,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:49:18,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:18" (1/1) ... [2022-11-18 19:49:18,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:18" (1/1) ... [2022-11-18 19:49:18,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:18" (1/1) ... [2022-11-18 19:49:18,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:18" (1/1) ... [2022-11-18 19:49:18,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:18" (1/1) ... [2022-11-18 19:49:18,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:18" (1/1) ... [2022-11-18 19:49:18,359 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:18" (1/1) ... [2022-11-18 19:49:18,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:18" (1/1) ... [2022-11-18 19:49:18,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:49:18,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:49:18,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:49:18,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:49:18,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:18" (1/1) ... [2022-11-18 19:49:18,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:49:18,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:49:18,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:49:18,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:49:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:49:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 19:49:18,463 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 19:49:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 19:49:18,463 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 19:49:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:49:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:49:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:49:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:49:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:49:18,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:49:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:49:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:49:18,466 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 19:49:18,581 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:49:18,583 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:49:19,409 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:49:19,424 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:49:19,424 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 19:49:19,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:49:19 BoogieIcfgContainer [2022-11-18 19:49:19,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:49:19,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:49:19,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:49:19,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:49:19,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:49:17" (1/3) ... [2022-11-18 19:49:19,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b966bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:49:19, skipping insertion in model container [2022-11-18 19:49:19,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:49:18" (2/3) ... [2022-11-18 19:49:19,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b966bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:49:19, skipping insertion in model container [2022-11-18 19:49:19,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:49:19" (3/3) ... [2022-11-18 19:49:19,441 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2022-11-18 19:49:19,452 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:49:19,461 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:49:19,461 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-11-18 19:49:19,461 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:49:19,626 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 19:49:19,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 347 places, 359 transitions, 734 flow [2022-11-18 19:49:19,847 INFO L130 PetriNetUnfolder]: 19/357 cut-off events. [2022-11-18 19:49:19,847 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 19:49:19,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 357 events. 19/357 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 658 event pairs, 0 based on Foata normal form. 0/306 useless extension candidates. Maximal degree in co-relation 233. Up to 3 conditions per place. [2022-11-18 19:49:19,860 INFO L82 GeneralOperation]: Start removeDead. Operand has 347 places, 359 transitions, 734 flow [2022-11-18 19:49:19,876 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 328 places, 339 transitions, 690 flow [2022-11-18 19:49:19,894 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:49:19,903 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;@39bd99f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:49:19,903 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2022-11-18 19:49:19,932 INFO L130 PetriNetUnfolder]: 3/60 cut-off events. [2022-11-18 19:49:19,932 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:49:19,933 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:49:19,933 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] [2022-11-18 19:49:19,935 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:49:19,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:19,943 INFO L85 PathProgramCache]: Analyzing trace with hash 130810750, now seen corresponding path program 1 times [2022-11-18 19:49:19,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:19,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85945240] [2022-11-18 19:49:19,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:19,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:20,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:49:20,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:20,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85945240] [2022-11-18 19:49:20,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85945240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:20,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:20,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:49:20,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434456813] [2022-11-18 19:49:20,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:20,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:49:20,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:20,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:49:20,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:49:20,293 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 359 [2022-11-18 19:49:20,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 339 transitions, 690 flow. Second operand has 2 states, 2 states have (on average 343.5) internal successors, (687), 2 states have internal predecessors, (687), 0 states have call successors, (0), 0 states 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 19:49:20,302 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:49:20,302 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 359 [2022-11-18 19:49:20,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:49:20,426 INFO L130 PetriNetUnfolder]: 8/329 cut-off events. [2022-11-18 19:49:20,426 INFO L131 PetriNetUnfolder]: For 9/10 co-relation queries the response was YES. [2022-11-18 19:49:20,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 329 events. 8/329 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 639 event pairs, 0 based on Foata normal form. 12/296 useless extension candidates. Maximal degree in co-relation 226. Up to 5 conditions per place. [2022-11-18 19:49:20,435 INFO L137 encePairwiseOnDemand]: 349/359 looper letters, 4 selfloop transitions, 0 changer transitions 4/329 dead transitions. [2022-11-18 19:49:20,435 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 329 transitions, 678 flow [2022-11-18 19:49:20,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:49:20,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 19:49:20,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 700 transitions. [2022-11-18 19:49:20,473 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9749303621169917 [2022-11-18 19:49:20,474 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 700 transitions. [2022-11-18 19:49:20,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 700 transitions. [2022-11-18 19:49:20,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:49:20,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 700 transitions. [2022-11-18 19:49:20,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 350.0) internal successors, (700), 2 states have internal predecessors, (700), 0 states have call successors, (0), 0 states 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 19:49:20,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states 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 19:49:20,497 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states 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 19:49:20,499 INFO L175 Difference]: Start difference. First operand has 328 places, 339 transitions, 690 flow. Second operand 2 states and 700 transitions. [2022-11-18 19:49:20,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 329 transitions, 678 flow [2022-11-18 19:49:20,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 329 transitions, 670 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 19:49:20,513 INFO L231 Difference]: Finished difference. Result has 325 places, 325 transitions, 654 flow [2022-11-18 19:49:20,515 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=654, PETRI_PLACES=325, PETRI_TRANSITIONS=325} [2022-11-18 19:49:20,519 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -3 predicate places. [2022-11-18 19:49:20,519 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 325 transitions, 654 flow [2022-11-18 19:49:20,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 343.5) internal successors, (687), 2 states have internal predecessors, (687), 0 states have call successors, (0), 0 states 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 19:49:20,520 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:49:20,521 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] [2022-11-18 19:49:20,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:49:20,521 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:49:20,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:20,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1873621085, now seen corresponding path program 1 times [2022-11-18 19:49:20,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:20,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51217731] [2022-11-18 19:49:20,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:20,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:20,638 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 19:49:20,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:20,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51217731] [2022-11-18 19:49:20,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51217731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:20,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:20,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:49:20,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254386574] [2022-11-18 19:49:20,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:20,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:49:20,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:20,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:49:20,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:49:20,645 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 359 [2022-11-18 19:49:20,647 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 325 transitions, 654 flow. Second operand has 3 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 0 states 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 19:49:20,647 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:49:20,648 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 359 [2022-11-18 19:49:20,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:49:20,969 INFO L130 PetriNetUnfolder]: 109/1126 cut-off events. [2022-11-18 19:49:20,969 INFO L131 PetriNetUnfolder]: For 21/22 co-relation queries the response was YES. [2022-11-18 19:49:20,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1287 conditions, 1126 events. 109/1126 cut-off events. For 21/22 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6025 event pairs, 48 based on Foata normal form. 0/916 useless extension candidates. Maximal degree in co-relation 1284. Up to 149 conditions per place. [2022-11-18 19:49:20,981 INFO L137 encePairwiseOnDemand]: 356/359 looper letters, 19 selfloop transitions, 2 changer transitions 0/324 dead transitions. [2022-11-18 19:49:20,981 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 324 transitions, 694 flow [2022-11-18 19:49:20,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:49:20,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:49:20,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 997 transitions. [2022-11-18 19:49:20,984 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9257195914577531 [2022-11-18 19:49:20,984 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 997 transitions. [2022-11-18 19:49:20,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 997 transitions. [2022-11-18 19:49:20,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:49:20,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 997 transitions. [2022-11-18 19:49:20,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 332.3333333333333) internal successors, (997), 3 states have internal predecessors, (997), 0 states have call successors, (0), 0 states 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 19:49:20,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:49:20,994 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:49:20,994 INFO L175 Difference]: Start difference. First operand has 325 places, 325 transitions, 654 flow. Second operand 3 states and 997 transitions. [2022-11-18 19:49:20,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 324 transitions, 694 flow [2022-11-18 19:49:20,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 324 transitions, 694 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:49:21,003 INFO L231 Difference]: Finished difference. Result has 322 places, 324 transitions, 656 flow [2022-11-18 19:49:21,003 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=656, PETRI_PLACES=322, PETRI_TRANSITIONS=324} [2022-11-18 19:49:21,006 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -6 predicate places. [2022-11-18 19:49:21,006 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 324 transitions, 656 flow [2022-11-18 19:49:21,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 0 states 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 19:49:21,007 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:49:21,007 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] [2022-11-18 19:49:21,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:49:21,008 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:49:21,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:21,008 INFO L85 PathProgramCache]: Analyzing trace with hash 239792728, now seen corresponding path program 1 times [2022-11-18 19:49:21,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:21,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050895762] [2022-11-18 19:49:21,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:21,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:21,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:21,704 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 19:49:21,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:21,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050895762] [2022-11-18 19:49:21,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050895762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:21,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:21,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:49:21,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439457082] [2022-11-18 19:49:21,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:21,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:49:21,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:21,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:49:21,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:49:21,711 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 359 [2022-11-18 19:49:21,713 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 324 transitions, 656 flow. Second operand has 6 states, 6 states have (on average 250.83333333333334) internal successors, (1505), 6 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states 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 19:49:21,714 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:49:21,714 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 359 [2022-11-18 19:49:21,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:49:27,475 INFO L130 PetriNetUnfolder]: 9053/25239 cut-off events. [2022-11-18 19:49:27,476 INFO L131 PetriNetUnfolder]: For 68/78 co-relation queries the response was YES. [2022-11-18 19:49:27,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38438 conditions, 25239 events. 9053/25239 cut-off events. For 68/78 co-relation queries the response was YES. Maximal size of possible extension queue 614. Compared 262833 event pairs, 7968 based on Foata normal form. 0/20445 useless extension candidates. Maximal degree in co-relation 38434. Up to 13158 conditions per place. [2022-11-18 19:49:27,683 INFO L137 encePairwiseOnDemand]: 347/359 looper letters, 86 selfloop transitions, 10 changer transitions 0/322 dead transitions. [2022-11-18 19:49:27,683 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 322 transitions, 844 flow [2022-11-18 19:49:27,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:49:27,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:49:27,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1592 transitions. [2022-11-18 19:49:27,688 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7390900649953575 [2022-11-18 19:49:27,688 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1592 transitions. [2022-11-18 19:49:27,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1592 transitions. [2022-11-18 19:49:27,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:49:27,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1592 transitions. [2022-11-18 19:49:27,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 265.3333333333333) internal successors, (1592), 6 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states 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 19:49:27,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:49:27,702 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:49:27,702 INFO L175 Difference]: Start difference. First operand has 322 places, 324 transitions, 656 flow. Second operand 6 states and 1592 transitions. [2022-11-18 19:49:27,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 322 transitions, 844 flow [2022-11-18 19:49:27,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 322 transitions, 840 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:49:27,709 INFO L231 Difference]: Finished difference. Result has 323 places, 322 transitions, 668 flow [2022-11-18 19:49:27,710 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=668, PETRI_PLACES=323, PETRI_TRANSITIONS=322} [2022-11-18 19:49:27,713 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -5 predicate places. [2022-11-18 19:49:27,713 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 322 transitions, 668 flow [2022-11-18 19:49:27,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 250.83333333333334) internal successors, (1505), 6 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states 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 19:49:27,714 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:49:27,715 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:27,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:49:27,715 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:49:27,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:27,717 INFO L85 PathProgramCache]: Analyzing trace with hash -834678727, now seen corresponding path program 1 times [2022-11-18 19:49:27,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:27,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923806439] [2022-11-18 19:49:27,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:27,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:27,809 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 19:49:27,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:27,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923806439] [2022-11-18 19:49:27,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923806439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:27,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:27,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:49:27,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095401031] [2022-11-18 19:49:27,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:27,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:49:27,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:27,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:49:27,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:49:27,820 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 359 [2022-11-18 19:49:27,822 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 322 transitions, 668 flow. Second operand has 3 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 0 states 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 19:49:27,822 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:49:27,822 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 359 [2022-11-18 19:49:27,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:49:28,039 INFO L130 PetriNetUnfolder]: 101/1115 cut-off events. [2022-11-18 19:49:28,039 INFO L131 PetriNetUnfolder]: For 18/19 co-relation queries the response was YES. [2022-11-18 19:49:28,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1279 conditions, 1115 events. 101/1115 cut-off events. For 18/19 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6081 event pairs, 48 based on Foata normal form. 0/920 useless extension candidates. Maximal degree in co-relation 1275. Up to 141 conditions per place. [2022-11-18 19:49:28,050 INFO L137 encePairwiseOnDemand]: 356/359 looper letters, 19 selfloop transitions, 2 changer transitions 0/321 dead transitions. [2022-11-18 19:49:28,050 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 321 transitions, 708 flow [2022-11-18 19:49:28,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:49:28,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:49:28,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 997 transitions. [2022-11-18 19:49:28,053 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9257195914577531 [2022-11-18 19:49:28,053 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 997 transitions. [2022-11-18 19:49:28,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 997 transitions. [2022-11-18 19:49:28,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:49:28,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 997 transitions. [2022-11-18 19:49:28,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 332.3333333333333) internal successors, (997), 3 states have internal predecessors, (997), 0 states have call successors, (0), 0 states 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 19:49:28,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:49:28,064 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:49:28,064 INFO L175 Difference]: Start difference. First operand has 323 places, 322 transitions, 668 flow. Second operand 3 states and 997 transitions. [2022-11-18 19:49:28,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 321 transitions, 708 flow [2022-11-18 19:49:28,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 321 transitions, 688 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:49:28,071 INFO L231 Difference]: Finished difference. Result has 319 places, 321 transitions, 650 flow [2022-11-18 19:49:28,072 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=650, PETRI_PLACES=319, PETRI_TRANSITIONS=321} [2022-11-18 19:49:28,073 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -9 predicate places. [2022-11-18 19:49:28,078 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 321 transitions, 650 flow [2022-11-18 19:49:28,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 0 states 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 19:49:28,079 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:49:28,080 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:28,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:49:28,081 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:49:28,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:28,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1541190120, now seen corresponding path program 1 times [2022-11-18 19:49:28,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:28,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670702905] [2022-11-18 19:49:28,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:28,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:28,176 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 19:49:28,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:28,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670702905] [2022-11-18 19:49:28,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670702905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:28,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:28,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:49:28,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824448247] [2022-11-18 19:49:28,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:28,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:49:28,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:28,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:49:28,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:49:28,184 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 359 [2022-11-18 19:49:28,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 321 transitions, 650 flow. Second operand has 3 states, 3 states have (on average 332.3333333333333) internal successors, (997), 3 states have internal predecessors, (997), 0 states have call successors, (0), 0 states 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 19:49:28,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:49:28,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 359 [2022-11-18 19:49:28,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:49:28,385 INFO L130 PetriNetUnfolder]: 41/772 cut-off events. [2022-11-18 19:49:28,385 INFO L131 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2022-11-18 19:49:28,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 832 conditions, 772 events. 41/772 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3713 event pairs, 15 based on Foata normal form. 0/643 useless extension candidates. Maximal degree in co-relation 828. Up to 48 conditions per place. [2022-11-18 19:49:28,392 INFO L137 encePairwiseOnDemand]: 356/359 looper letters, 13 selfloop transitions, 2 changer transitions 0/320 dead transitions. [2022-11-18 19:49:28,392 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 320 transitions, 678 flow [2022-11-18 19:49:28,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:49:28,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:49:28,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1009 transitions. [2022-11-18 19:49:28,395 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9368616527390901 [2022-11-18 19:49:28,396 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1009 transitions. [2022-11-18 19:49:28,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1009 transitions. [2022-11-18 19:49:28,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:49:28,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1009 transitions. [2022-11-18 19:49:28,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states 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 19:49:28,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:49:28,404 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:49:28,404 INFO L175 Difference]: Start difference. First operand has 319 places, 321 transitions, 650 flow. Second operand 3 states and 1009 transitions. [2022-11-18 19:49:28,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 320 transitions, 678 flow [2022-11-18 19:49:28,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 320 transitions, 674 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:49:28,412 INFO L231 Difference]: Finished difference. Result has 318 places, 320 transitions, 648 flow [2022-11-18 19:49:28,413 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=648, PETRI_PLACES=318, PETRI_TRANSITIONS=320} [2022-11-18 19:49:28,415 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -10 predicate places. [2022-11-18 19:49:28,415 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 320 transitions, 648 flow [2022-11-18 19:49:28,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 332.3333333333333) internal successors, (997), 3 states have internal predecessors, (997), 0 states have call successors, (0), 0 states 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 19:49:28,417 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:49:28,417 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:28,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:49:28,418 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:49:28,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:28,419 INFO L85 PathProgramCache]: Analyzing trace with hash -183626181, now seen corresponding path program 1 times [2022-11-18 19:49:28,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:28,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039698589] [2022-11-18 19:49:28,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:28,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:28,488 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 19:49:28,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:28,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039698589] [2022-11-18 19:49:28,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039698589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:28,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:28,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:49:28,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161993686] [2022-11-18 19:49:28,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:28,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:49:28,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:28,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:49:28,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:49:28,494 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 359 [2022-11-18 19:49:28,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 320 transitions, 648 flow. Second operand has 3 states, 3 states have (on average 332.3333333333333) internal successors, (997), 3 states have internal predecessors, (997), 0 states have call successors, (0), 0 states 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 19:49:28,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:49:28,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 359 [2022-11-18 19:49:28,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:49:28,643 INFO L130 PetriNetUnfolder]: 38/723 cut-off events. [2022-11-18 19:49:28,643 INFO L131 PetriNetUnfolder]: For 5/49 co-relation queries the response was YES. [2022-11-18 19:49:28,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 783 conditions, 723 events. 38/723 cut-off events. For 5/49 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3656 event pairs, 15 based on Foata normal form. 0/607 useless extension candidates. Maximal degree in co-relation 779. Up to 48 conditions per place. [2022-11-18 19:49:28,650 INFO L137 encePairwiseOnDemand]: 356/359 looper letters, 13 selfloop transitions, 2 changer transitions 0/319 dead transitions. [2022-11-18 19:49:28,650 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 319 transitions, 676 flow [2022-11-18 19:49:28,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:49:28,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:49:28,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1009 transitions. [2022-11-18 19:49:28,654 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9368616527390901 [2022-11-18 19:49:28,654 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1009 transitions. [2022-11-18 19:49:28,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1009 transitions. [2022-11-18 19:49:28,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:49:28,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1009 transitions. [2022-11-18 19:49:28,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states 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 19:49:28,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:49:28,662 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:49:28,662 INFO L175 Difference]: Start difference. First operand has 318 places, 320 transitions, 648 flow. Second operand 3 states and 1009 transitions. [2022-11-18 19:49:28,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 319 transitions, 676 flow [2022-11-18 19:49:28,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 319 transitions, 672 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:49:28,670 INFO L231 Difference]: Finished difference. Result has 317 places, 319 transitions, 646 flow [2022-11-18 19:49:28,671 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=646, PETRI_PLACES=317, PETRI_TRANSITIONS=319} [2022-11-18 19:49:28,672 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -11 predicate places. [2022-11-18 19:49:28,672 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 319 transitions, 646 flow [2022-11-18 19:49:28,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 332.3333333333333) internal successors, (997), 3 states have internal predecessors, (997), 0 states have call successors, (0), 0 states 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 19:49:28,673 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:49:28,673 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:28,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:49:28,674 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:49:28,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:28,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1679386230, now seen corresponding path program 1 times [2022-11-18 19:49:28,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:28,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562193922] [2022-11-18 19:49:28,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:28,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:28,731 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 19:49:28,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:28,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562193922] [2022-11-18 19:49:28,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562193922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:28,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:28,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:49:28,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454552924] [2022-11-18 19:49:28,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:28,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:49:28,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:28,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:49:28,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:49:28,735 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 359 [2022-11-18 19:49:28,737 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 319 transitions, 646 flow. Second operand has 3 states, 3 states have (on average 335.6666666666667) internal successors, (1007), 3 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states 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 19:49:28,737 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:49:28,738 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 359 [2022-11-18 19:49:28,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:49:28,871 INFO L130 PetriNetUnfolder]: 31/710 cut-off events. [2022-11-18 19:49:28,872 INFO L131 PetriNetUnfolder]: For 4/5 co-relation queries the response was YES. [2022-11-18 19:49:28,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 749 conditions, 710 events. 31/710 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3156 event pairs, 5 based on Foata normal form. 0/606 useless extension candidates. Maximal degree in co-relation 745. Up to 25 conditions per place. [2022-11-18 19:49:28,879 INFO L137 encePairwiseOnDemand]: 355/359 looper letters, 11 selfloop transitions, 2 changer transitions 0/320 dead transitions. [2022-11-18 19:49:28,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 320 transitions, 675 flow [2022-11-18 19:49:28,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:49:28,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:49:28,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1017 transitions. [2022-11-18 19:49:28,882 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9442896935933147 [2022-11-18 19:49:28,883 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1017 transitions. [2022-11-18 19:49:28,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1017 transitions. [2022-11-18 19:49:28,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:49:28,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1017 transitions. [2022-11-18 19:49:28,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states 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 19:49:28,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:49:28,890 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:49:28,890 INFO L175 Difference]: Start difference. First operand has 317 places, 319 transitions, 646 flow. Second operand 3 states and 1017 transitions. [2022-11-18 19:49:28,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 320 transitions, 675 flow [2022-11-18 19:49:28,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 320 transitions, 671 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:49:28,898 INFO L231 Difference]: Finished difference. Result has 316 places, 319 transitions, 652 flow [2022-11-18 19:49:28,899 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=652, PETRI_PLACES=316, PETRI_TRANSITIONS=319} [2022-11-18 19:49:28,900 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -12 predicate places. [2022-11-18 19:49:28,900 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 319 transitions, 652 flow [2022-11-18 19:49:28,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 335.6666666666667) internal successors, (1007), 3 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states 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 19:49:28,901 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:49:28,902 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:28,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:49:28,902 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:49:28,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:28,903 INFO L85 PathProgramCache]: Analyzing trace with hash 467351011, now seen corresponding path program 1 times [2022-11-18 19:49:28,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:28,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132968405] [2022-11-18 19:49:28,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:28,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:28,959 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 19:49:28,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:28,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132968405] [2022-11-18 19:49:28,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132968405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:28,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:28,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:49:28,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066857688] [2022-11-18 19:49:28,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:28,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:49:28,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:28,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:49:28,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:49:28,964 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 359 [2022-11-18 19:49:28,965 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 319 transitions, 652 flow. Second operand has 3 states, 3 states have (on average 336.0) internal successors, (1008), 3 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states 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 19:49:28,965 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:49:28,966 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 359 [2022-11-18 19:49:28,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:49:29,098 INFO L130 PetriNetUnfolder]: 32/690 cut-off events. [2022-11-18 19:49:29,098 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 19:49:29,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 690 events. 32/690 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3412 event pairs, 3 based on Foata normal form. 0/595 useless extension candidates. Maximal degree in co-relation 733. Up to 26 conditions per place. [2022-11-18 19:49:29,105 INFO L137 encePairwiseOnDemand]: 355/359 looper letters, 11 selfloop transitions, 2 changer transitions 0/320 dead transitions. [2022-11-18 19:49:29,105 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 320 transitions, 681 flow [2022-11-18 19:49:29,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:49:29,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:49:29,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1017 transitions. [2022-11-18 19:49:29,109 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9442896935933147 [2022-11-18 19:49:29,109 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1017 transitions. [2022-11-18 19:49:29,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1017 transitions. [2022-11-18 19:49:29,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:49:29,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1017 transitions. [2022-11-18 19:49:29,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states 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 19:49:29,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:49:29,116 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:49:29,117 INFO L175 Difference]: Start difference. First operand has 316 places, 319 transitions, 652 flow. Second operand 3 states and 1017 transitions. [2022-11-18 19:49:29,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 320 transitions, 681 flow [2022-11-18 19:49:29,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 320 transitions, 681 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:49:29,124 INFO L231 Difference]: Finished difference. Result has 317 places, 319 transitions, 662 flow [2022-11-18 19:49:29,125 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=662, PETRI_PLACES=317, PETRI_TRANSITIONS=319} [2022-11-18 19:49:29,126 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -11 predicate places. [2022-11-18 19:49:29,126 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 319 transitions, 662 flow [2022-11-18 19:49:29,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.0) internal successors, (1008), 3 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states 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 19:49:29,127 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:49:29,127 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:29,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:49:29,128 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:49:29,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:29,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1448263309, now seen corresponding path program 1 times [2022-11-18 19:49:29,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:29,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940245106] [2022-11-18 19:49:29,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:29,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:29,252 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 19:49:29,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:29,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940245106] [2022-11-18 19:49:29,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940245106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:29,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:29,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:49:29,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892085555] [2022-11-18 19:49:29,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:29,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:49:29,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:29,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:49:29,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:49:29,257 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 359 [2022-11-18 19:49:29,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 319 transitions, 662 flow. Second operand has 5 states, 5 states have (on average 310.6) internal successors, (1553), 5 states have internal predecessors, (1553), 0 states have call successors, (0), 0 states 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 19:49:29,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:49:29,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 359 [2022-11-18 19:49:29,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:49:29,452 INFO L130 PetriNetUnfolder]: 16/490 cut-off events. [2022-11-18 19:49:29,453 INFO L131 PetriNetUnfolder]: For 3/4 co-relation queries the response was YES. [2022-11-18 19:49:29,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 570 conditions, 490 events. 16/490 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1629 event pairs, 0 based on Foata normal form. 0/434 useless extension candidates. Maximal degree in co-relation 565. Up to 36 conditions per place. [2022-11-18 19:49:29,458 INFO L137 encePairwiseOnDemand]: 349/359 looper letters, 48 selfloop transitions, 8 changer transitions 0/337 dead transitions. [2022-11-18 19:49:29,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 337 transitions, 810 flow [2022-11-18 19:49:29,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:49:29,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 19:49:29,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1593 transitions. [2022-11-18 19:49:29,463 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8874651810584958 [2022-11-18 19:49:29,463 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1593 transitions. [2022-11-18 19:49:29,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1593 transitions. [2022-11-18 19:49:29,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:49:29,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1593 transitions. [2022-11-18 19:49:29,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 318.6) internal successors, (1593), 5 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states 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 19:49:29,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states 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 19:49:29,474 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states 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 19:49:29,474 INFO L175 Difference]: Start difference. First operand has 317 places, 319 transitions, 662 flow. Second operand 5 states and 1593 transitions. [2022-11-18 19:49:29,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 337 transitions, 810 flow [2022-11-18 19:49:29,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 337 transitions, 810 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:49:29,482 INFO L231 Difference]: Finished difference. Result has 322 places, 321 transitions, 694 flow [2022-11-18 19:49:29,483 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=694, PETRI_PLACES=322, PETRI_TRANSITIONS=321} [2022-11-18 19:49:29,483 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, -6 predicate places. [2022-11-18 19:49:29,484 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 321 transitions, 694 flow [2022-11-18 19:49:29,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 310.6) internal successors, (1553), 5 states have internal predecessors, (1553), 0 states have call successors, (0), 0 states 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 19:49:29,485 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:49:29,485 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:29,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:49:29,486 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:49:29,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:29,486 INFO L85 PathProgramCache]: Analyzing trace with hash 212733105, now seen corresponding path program 1 times [2022-11-18 19:49:29,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:29,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328243660] [2022-11-18 19:49:29,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:29,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:29,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:29,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:49:29,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:29,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328243660] [2022-11-18 19:49:29,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328243660] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:49:29,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380142218] [2022-11-18 19:49:29,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:29,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:49:29,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:49:29,736 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:49:29,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:49:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:29,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:49:29,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:49:30,055 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:49:30,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:49:30,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:49:30,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380142218] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:49:30,161 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:49:30,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-11-18 19:49:30,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661457529] [2022-11-18 19:49:30,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:49:30,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 19:49:30,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:30,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 19:49:30,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-18 19:49:30,168 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 359 [2022-11-18 19:49:30,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 321 transitions, 694 flow. Second operand has 15 states, 15 states have (on average 309.53333333333336) internal successors, (4643), 15 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states 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 19:49:30,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:49:30,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 359 [2022-11-18 19:49:30,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:49:30,558 INFO L130 PetriNetUnfolder]: 16/522 cut-off events. [2022-11-18 19:49:30,558 INFO L131 PetriNetUnfolder]: For 11/12 co-relation queries the response was YES. [2022-11-18 19:49:30,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 646 conditions, 522 events. 16/522 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1583 event pairs, 0 based on Foata normal form. 4/472 useless extension candidates. Maximal degree in co-relation 639. Up to 20 conditions per place. [2022-11-18 19:49:30,564 INFO L137 encePairwiseOnDemand]: 343/359 looper letters, 60 selfloop transitions, 22 changer transitions 0/361 dead transitions. [2022-11-18 19:49:30,564 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 361 transitions, 942 flow [2022-11-18 19:49:30,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:49:30,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 19:49:30,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3441 transitions. [2022-11-18 19:49:30,571 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8713598379336541 [2022-11-18 19:49:30,571 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3441 transitions. [2022-11-18 19:49:30,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3441 transitions. [2022-11-18 19:49:30,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:49:30,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3441 transitions. [2022-11-18 19:49:30,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 312.8181818181818) internal successors, (3441), 11 states have internal predecessors, (3441), 0 states have call successors, (0), 0 states 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 19:49:30,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 359.0) internal successors, (4308), 12 states have internal predecessors, (4308), 0 states have call successors, (0), 0 states 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 19:49:30,590 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 359.0) internal successors, (4308), 12 states have internal predecessors, (4308), 0 states have call successors, (0), 0 states 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 19:49:30,590 INFO L175 Difference]: Start difference. First operand has 322 places, 321 transitions, 694 flow. Second operand 11 states and 3441 transitions. [2022-11-18 19:49:30,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 361 transitions, 942 flow [2022-11-18 19:49:30,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 361 transitions, 930 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:49:30,599 INFO L231 Difference]: Finished difference. Result has 332 places, 333 transitions, 793 flow [2022-11-18 19:49:30,599 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=793, PETRI_PLACES=332, PETRI_TRANSITIONS=333} [2022-11-18 19:49:30,600 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, 4 predicate places. [2022-11-18 19:49:30,600 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 333 transitions, 793 flow [2022-11-18 19:49:30,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 309.53333333333336) internal successors, (4643), 15 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states 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 19:49:30,602 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:49:30,603 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:49:30,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:49:30,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 19:49:30,809 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:49:30,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:30,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1837150983, now seen corresponding path program 2 times [2022-11-18 19:49:30,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:30,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942161346] [2022-11-18 19:49:30,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:30,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:31,292 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-18 19:49:31,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:31,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942161346] [2022-11-18 19:49:31,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942161346] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:49:31,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060092116] [2022-11-18 19:49:31,293 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:49:31,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:49:31,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:49:31,294 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:49:31,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:49:31,446 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 19:49:31,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:49:31,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-18 19:49:31,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:49:31,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:49:31,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:31,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-18 19:49:31,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:31,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:31,808 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:49:31,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-18 19:49:31,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:31,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:31,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:49:31,853 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:49:31,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-11-18 19:49:31,896 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-18 19:49:31,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:49:31,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060092116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:31,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:49:31,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 16 [2022-11-18 19:49:31,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636605599] [2022-11-18 19:49:31,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:31,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:49:31,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:31,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:49:31,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:49:31,901 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 359 [2022-11-18 19:49:31,903 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 333 transitions, 793 flow. Second operand has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states 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 19:49:31,904 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:49:31,904 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 359 [2022-11-18 19:49:31,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:49:36,965 INFO L130 PetriNetUnfolder]: 9081/19297 cut-off events. [2022-11-18 19:49:36,966 INFO L131 PetriNetUnfolder]: For 47/631 co-relation queries the response was YES. [2022-11-18 19:49:37,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33347 conditions, 19297 events. 9081/19297 cut-off events. For 47/631 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 167552 event pairs, 2424 based on Foata normal form. 80/16624 useless extension candidates. Maximal degree in co-relation 33337. Up to 4395 conditions per place. [2022-11-18 19:49:37,116 INFO L137 encePairwiseOnDemand]: 353/359 looper letters, 264 selfloop transitions, 5 changer transitions 0/524 dead transitions. [2022-11-18 19:49:37,116 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 524 transitions, 1713 flow [2022-11-18 19:49:37,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:49:37,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 19:49:37,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2125 transitions. [2022-11-18 19:49:37,122 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8456028651014723 [2022-11-18 19:49:37,123 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2125 transitions. [2022-11-18 19:49:37,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2125 transitions. [2022-11-18 19:49:37,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:49:37,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2125 transitions. [2022-11-18 19:49:37,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 303.57142857142856) internal successors, (2125), 7 states have internal predecessors, (2125), 0 states have call successors, (0), 0 states 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 19:49:37,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 359.0) internal successors, (2872), 8 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states 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 19:49:37,134 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 359.0) internal successors, (2872), 8 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states 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 19:49:37,135 INFO L175 Difference]: Start difference. First operand has 332 places, 333 transitions, 793 flow. Second operand 7 states and 2125 transitions. [2022-11-18 19:49:37,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 524 transitions, 1713 flow [2022-11-18 19:49:37,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 524 transitions, 1696 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-18 19:49:37,150 INFO L231 Difference]: Finished difference. Result has 334 places, 332 transitions, 784 flow [2022-11-18 19:49:37,151 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=784, PETRI_PLACES=334, PETRI_TRANSITIONS=332} [2022-11-18 19:49:37,152 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, 6 predicate places. [2022-11-18 19:49:37,152 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 332 transitions, 784 flow [2022-11-18 19:49:37,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states 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 19:49:37,153 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:49:37,154 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:49:37,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:49:37,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:49:37,360 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:49:37,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:37,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1481191379, now seen corresponding path program 1 times [2022-11-18 19:49:37,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:37,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092489918] [2022-11-18 19:49:37,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:37,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:37,489 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-18 19:49:37,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:37,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092489918] [2022-11-18 19:49:37,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092489918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:37,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:37,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:49:37,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612920424] [2022-11-18 19:49:37,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:37,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:49:37,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:37,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:49:37,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:49:37,495 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 359 [2022-11-18 19:49:37,496 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 332 transitions, 784 flow. Second operand has 3 states, 3 states have (on average 329.6666666666667) internal successors, (989), 3 states have internal predecessors, (989), 0 states have call successors, (0), 0 states 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 19:49:37,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:49:37,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 359 [2022-11-18 19:49:37,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:49:37,753 INFO L130 PetriNetUnfolder]: 80/1144 cut-off events. [2022-11-18 19:49:37,753 INFO L131 PetriNetUnfolder]: For 26/27 co-relation queries the response was YES. [2022-11-18 19:49:37,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1340 conditions, 1144 events. 80/1144 cut-off events. For 26/27 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5906 event pairs, 12 based on Foata normal form. 0/997 useless extension candidates. Maximal degree in co-relation 1330. Up to 94 conditions per place. [2022-11-18 19:49:37,766 INFO L137 encePairwiseOnDemand]: 353/359 looper letters, 17 selfloop transitions, 2 changer transitions 0/333 dead transitions. [2022-11-18 19:49:37,766 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 333 transitions, 827 flow [2022-11-18 19:49:37,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:49:37,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:49:37,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1007 transitions. [2022-11-18 19:49:37,770 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9350046425255338 [2022-11-18 19:49:37,770 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1007 transitions. [2022-11-18 19:49:37,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1007 transitions. [2022-11-18 19:49:37,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:49:37,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1007 transitions. [2022-11-18 19:49:37,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 335.6666666666667) internal successors, (1007), 3 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states 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 19:49:37,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:49:37,777 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:49:37,777 INFO L175 Difference]: Start difference. First operand has 334 places, 332 transitions, 784 flow. Second operand 3 states and 1007 transitions. [2022-11-18 19:49:37,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 333 transitions, 827 flow [2022-11-18 19:49:37,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 333 transitions, 818 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:49:37,787 INFO L231 Difference]: Finished difference. Result has 328 places, 330 transitions, 781 flow [2022-11-18 19:49:37,787 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=767, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=781, PETRI_PLACES=328, PETRI_TRANSITIONS=330} [2022-11-18 19:49:37,789 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, 0 predicate places. [2022-11-18 19:49:37,789 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 330 transitions, 781 flow [2022-11-18 19:49:37,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 329.6666666666667) internal successors, (989), 3 states have internal predecessors, (989), 0 states have call successors, (0), 0 states 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 19:49:37,790 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:49:37,790 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:49:37,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 19:49:37,791 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:49:37,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:37,791 INFO L85 PathProgramCache]: Analyzing trace with hash -150183849, now seen corresponding path program 1 times [2022-11-18 19:49:37,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:37,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286454224] [2022-11-18 19:49:37,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:37,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:38,244 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-18 19:49:38,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:38,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286454224] [2022-11-18 19:49:38,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286454224] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:49:38,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13951043] [2022-11-18 19:49:38,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:38,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:49:38,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:49:38,248 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:49:38,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:49:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:38,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 19:49:38,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:49:38,786 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-18 19:49:38,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:49:38,996 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-18 19:49:38,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13951043] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:49:38,996 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:49:38,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-11-18 19:49:38,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019579060] [2022-11-18 19:49:38,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:49:38,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 19:49:38,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:38,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 19:49:38,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-11-18 19:49:39,004 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 359 [2022-11-18 19:49:39,011 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 330 transitions, 781 flow. Second operand has 22 states, 22 states have (on average 309.8636363636364) internal successors, (6817), 22 states have internal predecessors, (6817), 0 states have call successors, (0), 0 states 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 19:49:39,011 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:49:39,011 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 359 [2022-11-18 19:49:39,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:49:39,820 INFO L130 PetriNetUnfolder]: 25/710 cut-off events. [2022-11-18 19:49:39,820 INFO L131 PetriNetUnfolder]: For 43/46 co-relation queries the response was YES. [2022-11-18 19:49:39,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 957 conditions, 710 events. 25/710 cut-off events. For 43/46 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2391 event pairs, 0 based on Foata normal form. 4/646 useless extension candidates. Maximal degree in co-relation 947. Up to 25 conditions per place. [2022-11-18 19:49:39,827 INFO L137 encePairwiseOnDemand]: 343/359 looper letters, 88 selfloop transitions, 34 changer transitions 0/398 dead transitions. [2022-11-18 19:49:39,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 398 transitions, 1217 flow [2022-11-18 19:49:39,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 19:49:39,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-18 19:49:39,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 5311 transitions. [2022-11-18 19:49:39,841 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8702277568408979 [2022-11-18 19:49:39,842 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 5311 transitions. [2022-11-18 19:49:39,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 5311 transitions. [2022-11-18 19:49:39,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:49:39,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 5311 transitions. [2022-11-18 19:49:39,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 312.4117647058824) internal successors, (5311), 17 states have internal predecessors, (5311), 0 states have call successors, (0), 0 states 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 19:49:39,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 359.0) internal successors, (6462), 18 states have internal predecessors, (6462), 0 states have call successors, (0), 0 states 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 19:49:39,873 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 359.0) internal successors, (6462), 18 states have internal predecessors, (6462), 0 states have call successors, (0), 0 states 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 19:49:39,873 INFO L175 Difference]: Start difference. First operand has 328 places, 330 transitions, 781 flow. Second operand 17 states and 5311 transitions. [2022-11-18 19:49:39,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 398 transitions, 1217 flow [2022-11-18 19:49:39,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 398 transitions, 1217 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:49:39,884 INFO L231 Difference]: Finished difference. Result has 347 places, 344 transitions, 956 flow [2022-11-18 19:49:39,884 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=956, PETRI_PLACES=347, PETRI_TRANSITIONS=344} [2022-11-18 19:49:39,886 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, 19 predicate places. [2022-11-18 19:49:39,886 INFO L495 AbstractCegarLoop]: Abstraction has has 347 places, 344 transitions, 956 flow [2022-11-18 19:49:39,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 309.8636363636364) internal successors, (6817), 22 states have internal predecessors, (6817), 0 states have call successors, (0), 0 states 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 19:49:39,888 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:49:39,889 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:49:39,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:49:40,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 19:49:40,095 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:49:40,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:40,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1971687183, now seen corresponding path program 2 times [2022-11-18 19:49:40,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:40,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235594673] [2022-11-18 19:49:40,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:40,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:41,393 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-18 19:49:41,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:41,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235594673] [2022-11-18 19:49:41,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235594673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:41,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:41,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:49:41,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79089236] [2022-11-18 19:49:41,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:41,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:49:41,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:41,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:49:41,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:49:41,401 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 359 [2022-11-18 19:49:41,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 344 transitions, 956 flow. Second operand has 6 states, 6 states have (on average 261.5) internal successors, (1569), 6 states have internal predecessors, (1569), 0 states have call successors, (0), 0 states 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 19:49:41,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:49:41,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 359 [2022-11-18 19:49:41,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:49:47,288 INFO L130 PetriNetUnfolder]: 11200/24664 cut-off events. [2022-11-18 19:49:47,288 INFO L131 PetriNetUnfolder]: For 112/115 co-relation queries the response was YES. [2022-11-18 19:49:47,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43341 conditions, 24664 events. 11200/24664 cut-off events. For 112/115 co-relation queries the response was YES. Maximal size of possible extension queue 553. Compared 230678 event pairs, 2368 based on Foata normal form. 0/21680 useless extension candidates. Maximal degree in co-relation 43327. Up to 11243 conditions per place. [2022-11-18 19:49:47,467 INFO L137 encePairwiseOnDemand]: 352/359 looper letters, 215 selfloop transitions, 5 changer transitions 0/478 dead transitions. [2022-11-18 19:49:47,468 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 478 transitions, 1674 flow [2022-11-18 19:49:47,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:49:47,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:49:47,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1770 transitions. [2022-11-18 19:49:47,472 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8217270194986073 [2022-11-18 19:49:47,472 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1770 transitions. [2022-11-18 19:49:47,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1770 transitions. [2022-11-18 19:49:47,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:49:47,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1770 transitions. [2022-11-18 19:49:47,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 295.0) internal successors, (1770), 6 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states 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 19:49:47,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:49:47,482 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:49:47,483 INFO L175 Difference]: Start difference. First operand has 347 places, 344 transitions, 956 flow. Second operand 6 states and 1770 transitions. [2022-11-18 19:49:47,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 478 transitions, 1674 flow [2022-11-18 19:49:47,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 478 transitions, 1629 flow, removed 8 selfloop flow, removed 8 redundant places. [2022-11-18 19:49:47,492 INFO L231 Difference]: Finished difference. Result has 342 places, 342 transitions, 917 flow [2022-11-18 19:49:47,493 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=907, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=917, PETRI_PLACES=342, PETRI_TRANSITIONS=342} [2022-11-18 19:49:47,494 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, 14 predicate places. [2022-11-18 19:49:47,494 INFO L495 AbstractCegarLoop]: Abstraction has has 342 places, 342 transitions, 917 flow [2022-11-18 19:49:47,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 261.5) internal successors, (1569), 6 states have internal predecessors, (1569), 0 states have call successors, (0), 0 states 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 19:49:47,495 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:49:47,495 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:49:47,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 19:49:47,496 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:49:47,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:47,496 INFO L85 PathProgramCache]: Analyzing trace with hash 634517156, now seen corresponding path program 1 times [2022-11-18 19:49:47,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:47,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926568201] [2022-11-18 19:49:47,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:47,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:47,632 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-18 19:49:47,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:47,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926568201] [2022-11-18 19:49:47,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926568201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:47,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:47,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:49:47,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381652666] [2022-11-18 19:49:47,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:47,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:49:47,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:47,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:49:47,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:49:47,635 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 359 [2022-11-18 19:49:47,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 342 transitions, 917 flow. Second operand has 3 states, 3 states have (on average 330.0) internal successors, (990), 3 states have internal predecessors, (990), 0 states have call successors, (0), 0 states 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 19:49:47,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:49:47,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 359 [2022-11-18 19:49:47,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:49:47,944 INFO L130 PetriNetUnfolder]: 90/1355 cut-off events. [2022-11-18 19:49:47,944 INFO L131 PetriNetUnfolder]: For 83/84 co-relation queries the response was YES. [2022-11-18 19:49:47,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1691 conditions, 1355 events. 90/1355 cut-off events. For 83/84 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 7297 event pairs, 16 based on Foata normal form. 0/1228 useless extension candidates. Maximal degree in co-relation 1677. Up to 116 conditions per place. [2022-11-18 19:49:47,956 INFO L137 encePairwiseOnDemand]: 353/359 looper letters, 17 selfloop transitions, 2 changer transitions 0/343 dead transitions. [2022-11-18 19:49:47,957 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 343 transitions, 960 flow [2022-11-18 19:49:47,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:49:47,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:49:47,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1007 transitions. [2022-11-18 19:49:47,961 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9350046425255338 [2022-11-18 19:49:47,961 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1007 transitions. [2022-11-18 19:49:47,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1007 transitions. [2022-11-18 19:49:47,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:49:47,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1007 transitions. [2022-11-18 19:49:47,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 335.6666666666667) internal successors, (1007), 3 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states 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 19:49:47,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:49:47,967 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:49:47,967 INFO L175 Difference]: Start difference. First operand has 342 places, 342 transitions, 917 flow. Second operand 3 states and 1007 transitions. [2022-11-18 19:49:47,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 343 transitions, 960 flow [2022-11-18 19:49:47,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 343 transitions, 950 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:49:47,975 INFO L231 Difference]: Finished difference. Result has 336 places, 340 transitions, 913 flow [2022-11-18 19:49:47,976 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=899, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=913, PETRI_PLACES=336, PETRI_TRANSITIONS=340} [2022-11-18 19:49:47,976 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, 8 predicate places. [2022-11-18 19:49:47,977 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 340 transitions, 913 flow [2022-11-18 19:49:47,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 330.0) internal successors, (990), 3 states have internal predecessors, (990), 0 states have call successors, (0), 0 states 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 19:49:47,977 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:49:47,978 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:49:47,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 19:49:47,978 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:49:47,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:47,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1358329128, now seen corresponding path program 1 times [2022-11-18 19:49:47,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:47,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824019348] [2022-11-18 19:49:47,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:47,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:48,882 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-18 19:49:48,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:48,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824019348] [2022-11-18 19:49:48,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824019348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:48,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:48,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:49:48,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22627069] [2022-11-18 19:49:48,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:48,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:49:48,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:48,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:49:48,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:49:48,889 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 359 [2022-11-18 19:49:48,891 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 340 transitions, 913 flow. Second operand has 6 states, 6 states have (on average 261.6666666666667) internal successors, (1570), 6 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states 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 19:49:48,891 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:49:48,892 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 359 [2022-11-18 19:49:48,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:49:53,814 INFO L130 PetriNetUnfolder]: 10346/22844 cut-off events. [2022-11-18 19:49:53,814 INFO L131 PetriNetUnfolder]: For 126/145 co-relation queries the response was YES. [2022-11-18 19:49:53,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40509 conditions, 22844 events. 10346/22844 cut-off events. For 126/145 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 209216 event pairs, 2067 based on Foata normal form. 0/20894 useless extension candidates. Maximal degree in co-relation 40495. Up to 10551 conditions per place. [2022-11-18 19:49:54,006 INFO L137 encePairwiseOnDemand]: 352/359 looper letters, 222 selfloop transitions, 5 changer transitions 0/483 dead transitions. [2022-11-18 19:49:54,007 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 483 transitions, 1662 flow [2022-11-18 19:49:54,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:49:54,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:49:54,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1777 transitions. [2022-11-18 19:49:54,013 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8249767873723306 [2022-11-18 19:49:54,013 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1777 transitions. [2022-11-18 19:49:54,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1777 transitions. [2022-11-18 19:49:54,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:49:54,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1777 transitions. [2022-11-18 19:49:54,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 296.1666666666667) internal successors, (1777), 6 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states 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 19:49:54,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:49:54,026 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:49:54,027 INFO L175 Difference]: Start difference. First operand has 336 places, 340 transitions, 913 flow. Second operand 6 states and 1777 transitions. [2022-11-18 19:49:54,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 483 transitions, 1662 flow [2022-11-18 19:49:54,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 483 transitions, 1662 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:49:54,040 INFO L231 Difference]: Finished difference. Result has 339 places, 338 transitions, 919 flow [2022-11-18 19:49:54,040 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=909, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=919, PETRI_PLACES=339, PETRI_TRANSITIONS=338} [2022-11-18 19:49:54,041 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, 11 predicate places. [2022-11-18 19:49:54,041 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 338 transitions, 919 flow [2022-11-18 19:49:54,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 261.6666666666667) internal successors, (1570), 6 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states 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 19:49:54,042 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:49:54,043 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:49:54,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 19:49:54,043 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:49:54,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:54,044 INFO L85 PathProgramCache]: Analyzing trace with hash 945997877, now seen corresponding path program 1 times [2022-11-18 19:49:54,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:54,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963319619] [2022-11-18 19:49:54,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:54,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:55,087 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-18 19:49:55,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:55,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963319619] [2022-11-18 19:49:55,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963319619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:55,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:55,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:49:55,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127748394] [2022-11-18 19:49:55,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:55,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:49:55,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:55,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:49:55,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:49:55,092 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 359 [2022-11-18 19:49:55,093 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 338 transitions, 919 flow. Second operand has 6 states, 6 states have (on average 262.5) internal successors, (1575), 6 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states 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 19:49:55,094 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:49:55,094 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 359 [2022-11-18 19:49:55,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:50:00,419 INFO L130 PetriNetUnfolder]: 9951/23584 cut-off events. [2022-11-18 19:50:00,419 INFO L131 PetriNetUnfolder]: For 710/716 co-relation queries the response was YES. [2022-11-18 19:50:00,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41635 conditions, 23584 events. 9951/23584 cut-off events. For 710/716 co-relation queries the response was YES. Maximal size of possible extension queue 574. Compared 227290 event pairs, 3956 based on Foata normal form. 0/21805 useless extension candidates. Maximal degree in co-relation 41620. Up to 7094 conditions per place. [2022-11-18 19:50:00,590 INFO L137 encePairwiseOnDemand]: 352/359 looper letters, 203 selfloop transitions, 5 changer transitions 0/464 dead transitions. [2022-11-18 19:50:00,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 464 transitions, 1629 flow [2022-11-18 19:50:00,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:50:00,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:50:00,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1758 transitions. [2022-11-18 19:50:00,600 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8161559888579387 [2022-11-18 19:50:00,601 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1758 transitions. [2022-11-18 19:50:00,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1758 transitions. [2022-11-18 19:50:00,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:50:00,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1758 transitions. [2022-11-18 19:50:00,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 293.0) internal successors, (1758), 6 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states 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 19:50:00,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:50:00,617 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:50:00,617 INFO L175 Difference]: Start difference. First operand has 339 places, 338 transitions, 919 flow. Second operand 6 states and 1758 transitions. [2022-11-18 19:50:00,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 464 transitions, 1629 flow [2022-11-18 19:50:00,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 464 transitions, 1587 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:50:00,631 INFO L231 Difference]: Finished difference. Result has 337 places, 336 transitions, 915 flow [2022-11-18 19:50:00,632 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=905, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=915, PETRI_PLACES=337, PETRI_TRANSITIONS=336} [2022-11-18 19:50:00,633 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, 9 predicate places. [2022-11-18 19:50:00,633 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 336 transitions, 915 flow [2022-11-18 19:50:00,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 262.5) internal successors, (1575), 6 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states 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 19:50:00,634 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:50:00,634 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:00,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 19:50:00,634 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:50:00,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:00,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1655918158, now seen corresponding path program 1 times [2022-11-18 19:50:00,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:00,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841945763] [2022-11-18 19:50:00,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:00,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:01,565 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-18 19:50:01,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:01,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841945763] [2022-11-18 19:50:01,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841945763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:01,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:01,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:50:01,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238338041] [2022-11-18 19:50:01,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:01,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:50:01,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:01,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:50:01,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:50:01,569 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 359 [2022-11-18 19:50:01,571 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 336 transitions, 915 flow. Second operand has 6 states, 6 states have (on average 262.6666666666667) internal successors, (1576), 6 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states 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 19:50:01,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:50:01,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 359 [2022-11-18 19:50:01,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:50:06,822 INFO L130 PetriNetUnfolder]: 9329/22585 cut-off events. [2022-11-18 19:50:06,822 INFO L131 PetriNetUnfolder]: For 758/777 co-relation queries the response was YES. [2022-11-18 19:50:06,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39538 conditions, 22585 events. 9329/22585 cut-off events. For 758/777 co-relation queries the response was YES. Maximal size of possible extension queue 575. Compared 217859 event pairs, 3690 based on Foata normal form. 0/21197 useless extension candidates. Maximal degree in co-relation 39523. Up to 6711 conditions per place. [2022-11-18 19:50:06,972 INFO L137 encePairwiseOnDemand]: 352/359 looper letters, 210 selfloop transitions, 5 changer transitions 0/471 dead transitions. [2022-11-18 19:50:06,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 471 transitions, 1656 flow [2022-11-18 19:50:06,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:50:06,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:50:06,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1765 transitions. [2022-11-18 19:50:06,978 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.819405756731662 [2022-11-18 19:50:06,979 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1765 transitions. [2022-11-18 19:50:06,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1765 transitions. [2022-11-18 19:50:06,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:50:06,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1765 transitions. [2022-11-18 19:50:06,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 294.1666666666667) internal successors, (1765), 6 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states 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 19:50:06,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:50:06,989 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:50:06,990 INFO L175 Difference]: Start difference. First operand has 337 places, 336 transitions, 915 flow. Second operand 6 states and 1765 transitions. [2022-11-18 19:50:06,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 471 transitions, 1656 flow [2022-11-18 19:50:06,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 471 transitions, 1614 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:50:07,002 INFO L231 Difference]: Finished difference. Result has 335 places, 334 transitions, 911 flow [2022-11-18 19:50:07,003 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=911, PETRI_PLACES=335, PETRI_TRANSITIONS=334} [2022-11-18 19:50:07,003 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, 7 predicate places. [2022-11-18 19:50:07,004 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 334 transitions, 911 flow [2022-11-18 19:50:07,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 262.6666666666667) internal successors, (1576), 6 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states 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 19:50:07,004 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:50:07,005 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:07,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 19:50:07,005 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:50:07,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:07,006 INFO L85 PathProgramCache]: Analyzing trace with hash -137513576, now seen corresponding path program 1 times [2022-11-18 19:50:07,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:07,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054509545] [2022-11-18 19:50:07,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:07,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:07,941 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-18 19:50:07,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:07,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054509545] [2022-11-18 19:50:07,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054509545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:07,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:07,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:50:07,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507470377] [2022-11-18 19:50:07,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:07,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:50:07,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:07,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:50:07,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:50:07,948 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 359 [2022-11-18 19:50:07,951 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 334 transitions, 911 flow. Second operand has 6 states, 6 states have (on average 269.5) internal successors, (1617), 6 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states 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 19:50:07,951 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:50:07,951 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 359 [2022-11-18 19:50:07,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:50:12,153 INFO L130 PetriNetUnfolder]: 5939/17916 cut-off events. [2022-11-18 19:50:12,153 INFO L131 PetriNetUnfolder]: For 466/488 co-relation queries the response was YES. [2022-11-18 19:50:12,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28989 conditions, 17916 events. 5939/17916 cut-off events. For 466/488 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 177078 event pairs, 5175 based on Foata normal form. 8/16865 useless extension candidates. Maximal degree in co-relation 28974. Up to 8652 conditions per place. [2022-11-18 19:50:12,295 INFO L137 encePairwiseOnDemand]: 354/359 looper letters, 144 selfloop transitions, 4 changer transitions 0/413 dead transitions. [2022-11-18 19:50:12,295 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 413 transitions, 1397 flow [2022-11-18 19:50:12,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:50:12,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:50:12,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1739 transitions. [2022-11-18 19:50:12,301 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8073351903435468 [2022-11-18 19:50:12,301 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1739 transitions. [2022-11-18 19:50:12,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1739 transitions. [2022-11-18 19:50:12,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:50:12,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1739 transitions. [2022-11-18 19:50:12,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 289.8333333333333) internal successors, (1739), 6 states have internal predecessors, (1739), 0 states have call successors, (0), 0 states 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 19:50:12,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:50:12,313 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:50:12,313 INFO L175 Difference]: Start difference. First operand has 335 places, 334 transitions, 911 flow. Second operand 6 states and 1739 transitions. [2022-11-18 19:50:12,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 413 transitions, 1397 flow [2022-11-18 19:50:12,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 413 transitions, 1355 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:50:12,330 INFO L231 Difference]: Finished difference. Result has 334 places, 333 transitions, 907 flow [2022-11-18 19:50:12,331 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=899, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=907, PETRI_PLACES=334, PETRI_TRANSITIONS=333} [2022-11-18 19:50:12,331 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, 6 predicate places. [2022-11-18 19:50:12,332 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 333 transitions, 907 flow [2022-11-18 19:50:12,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 269.5) internal successors, (1617), 6 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states 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 19:50:12,332 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:50:12,333 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:12,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 19:50:12,333 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:50:12,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:12,334 INFO L85 PathProgramCache]: Analyzing trace with hash 119983581, now seen corresponding path program 1 times [2022-11-18 19:50:12,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:12,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113483908] [2022-11-18 19:50:12,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:12,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:12,671 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-18 19:50:12,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:12,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113483908] [2022-11-18 19:50:12,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113483908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:12,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:12,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:50:12,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799040449] [2022-11-18 19:50:12,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:12,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:50:12,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:12,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:50:12,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:50:12,675 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 359 [2022-11-18 19:50:12,676 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 333 transitions, 907 flow. Second operand has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states 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 19:50:12,677 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:50:12,677 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 359 [2022-11-18 19:50:12,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:50:12,840 INFO L130 PetriNetUnfolder]: 36/769 cut-off events. [2022-11-18 19:50:12,841 INFO L131 PetriNetUnfolder]: For 63/68 co-relation queries the response was YES. [2022-11-18 19:50:12,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1008 conditions, 769 events. 36/769 cut-off events. For 63/68 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2847 event pairs, 2 based on Foata normal form. 1/738 useless extension candidates. Maximal degree in co-relation 993. Up to 28 conditions per place. [2022-11-18 19:50:12,845 INFO L137 encePairwiseOnDemand]: 356/359 looper letters, 10 selfloop transitions, 2 changer transitions 0/333 dead transitions. [2022-11-18 19:50:12,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 333 transitions, 932 flow [2022-11-18 19:50:12,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:50:12,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:50:12,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1018 transitions. [2022-11-18 19:50:12,848 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9452181987000928 [2022-11-18 19:50:12,848 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1018 transitions. [2022-11-18 19:50:12,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1018 transitions. [2022-11-18 19:50:12,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:50:12,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1018 transitions. [2022-11-18 19:50:12,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.3333333333333) internal successors, (1018), 3 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states 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 19:50:12,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:50:12,855 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:50:12,855 INFO L175 Difference]: Start difference. First operand has 334 places, 333 transitions, 907 flow. Second operand 3 states and 1018 transitions. [2022-11-18 19:50:12,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 333 transitions, 932 flow [2022-11-18 19:50:12,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 333 transitions, 925 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 19:50:12,864 INFO L231 Difference]: Finished difference. Result has 331 places, 332 transitions, 902 flow [2022-11-18 19:50:12,864 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=902, PETRI_PLACES=331, PETRI_TRANSITIONS=332} [2022-11-18 19:50:12,865 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, 3 predicate places. [2022-11-18 19:50:12,865 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 332 transitions, 902 flow [2022-11-18 19:50:12,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states 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 19:50:12,866 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:50:12,866 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:12,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 19:50:12,867 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:50:12,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:12,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1494326070, now seen corresponding path program 1 times [2022-11-18 19:50:12,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:12,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763181643] [2022-11-18 19:50:12,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:12,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:12,992 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-18 19:50:12,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:12,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763181643] [2022-11-18 19:50:12,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763181643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:12,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:12,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:50:12,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647338154] [2022-11-18 19:50:12,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:12,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:50:12,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:12,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:50:12,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:50:12,996 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 359 [2022-11-18 19:50:12,998 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 332 transitions, 902 flow. Second operand has 3 states, 3 states have (on average 336.6666666666667) internal successors, (1010), 3 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states 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 19:50:12,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:50:12,998 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 359 [2022-11-18 19:50:12,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:50:13,165 INFO L130 PetriNetUnfolder]: 39/766 cut-off events. [2022-11-18 19:50:13,165 INFO L131 PetriNetUnfolder]: For 70/75 co-relation queries the response was YES. [2022-11-18 19:50:13,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 993 conditions, 766 events. 39/766 cut-off events. For 70/75 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2821 event pairs, 2 based on Foata normal form. 1/735 useless extension candidates. Maximal degree in co-relation 978. Up to 28 conditions per place. [2022-11-18 19:50:13,169 INFO L137 encePairwiseOnDemand]: 356/359 looper letters, 9 selfloop transitions, 2 changer transitions 0/332 dead transitions. [2022-11-18 19:50:13,170 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 332 transitions, 925 flow [2022-11-18 19:50:13,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:50:13,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:50:13,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1017 transitions. [2022-11-18 19:50:13,172 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9442896935933147 [2022-11-18 19:50:13,172 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1017 transitions. [2022-11-18 19:50:13,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1017 transitions. [2022-11-18 19:50:13,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:50:13,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1017 transitions. [2022-11-18 19:50:13,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states 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 19:50:13,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:50:13,178 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:50:13,178 INFO L175 Difference]: Start difference. First operand has 331 places, 332 transitions, 902 flow. Second operand 3 states and 1017 transitions. [2022-11-18 19:50:13,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 332 transitions, 925 flow [2022-11-18 19:50:13,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 332 transitions, 921 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:50:13,185 INFO L231 Difference]: Finished difference. Result has 330 places, 331 transitions, 900 flow [2022-11-18 19:50:13,186 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=900, PETRI_PLACES=330, PETRI_TRANSITIONS=331} [2022-11-18 19:50:13,186 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, 2 predicate places. [2022-11-18 19:50:13,186 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 331 transitions, 900 flow [2022-11-18 19:50:13,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.6666666666667) internal successors, (1010), 3 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states 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 19:50:13,187 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:50:13,187 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:13,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 19:50:13,188 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:50:13,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:13,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1820524084, now seen corresponding path program 1 times [2022-11-18 19:50:13,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:13,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54696590] [2022-11-18 19:50:13,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:13,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:13,302 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-18 19:50:13,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:13,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54696590] [2022-11-18 19:50:13,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54696590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:13,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:13,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:50:13,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666774274] [2022-11-18 19:50:13,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:13,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:50:13,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:13,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:50:13,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:50:13,305 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 359 [2022-11-18 19:50:13,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 331 transitions, 900 flow. Second operand has 3 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states 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 19:50:13,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:50:13,307 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 359 [2022-11-18 19:50:13,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:50:13,456 INFO L130 PetriNetUnfolder]: 34/761 cut-off events. [2022-11-18 19:50:13,456 INFO L131 PetriNetUnfolder]: For 63/66 co-relation queries the response was YES. [2022-11-18 19:50:13,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 977 conditions, 761 events. 34/761 cut-off events. For 63/66 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2746 event pairs, 2 based on Foata normal form. 0/734 useless extension candidates. Maximal degree in co-relation 962. Up to 22 conditions per place. [2022-11-18 19:50:13,461 INFO L137 encePairwiseOnDemand]: 357/359 looper letters, 7 selfloop transitions, 1 changer transitions 0/330 dead transitions. [2022-11-18 19:50:13,462 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 330 transitions, 914 flow [2022-11-18 19:50:13,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:50:13,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:50:13,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1020 transitions. [2022-11-18 19:50:13,464 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.947075208913649 [2022-11-18 19:50:13,464 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1020 transitions. [2022-11-18 19:50:13,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1020 transitions. [2022-11-18 19:50:13,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:50:13,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1020 transitions. [2022-11-18 19:50:13,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 340.0) internal successors, (1020), 3 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states 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 19:50:13,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:50:13,469 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:50:13,469 INFO L175 Difference]: Start difference. First operand has 330 places, 331 transitions, 900 flow. Second operand 3 states and 1020 transitions. [2022-11-18 19:50:13,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 330 transitions, 914 flow [2022-11-18 19:50:13,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 330 transitions, 910 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:50:13,476 INFO L231 Difference]: Finished difference. Result has 329 places, 330 transitions, 896 flow [2022-11-18 19:50:13,477 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=896, PETRI_PLACES=329, PETRI_TRANSITIONS=330} [2022-11-18 19:50:13,477 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, 1 predicate places. [2022-11-18 19:50:13,477 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 330 transitions, 896 flow [2022-11-18 19:50:13,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states 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 19:50:13,478 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:50:13,478 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:13,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 19:50:13,479 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-18 19:50:13,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:13,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1471978324, now seen corresponding path program 1 times [2022-11-18 19:50:13,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:13,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166355473] [2022-11-18 19:50:13,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:13,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:13,600 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-18 19:50:13,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:13,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166355473] [2022-11-18 19:50:13,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166355473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:13,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:13,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:50:13,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702729135] [2022-11-18 19:50:13,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:13,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:50:13,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:13,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:50:13,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:50:13,604 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 359 [2022-11-18 19:50:13,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 330 transitions, 896 flow. Second operand has 3 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states 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 19:50:13,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:50:13,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 359 [2022-11-18 19:50:13,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:50:13,717 INFO L130 PetriNetUnfolder]: 35/757 cut-off events. [2022-11-18 19:50:13,718 INFO L131 PetriNetUnfolder]: For 66/69 co-relation queries the response was YES. [2022-11-18 19:50:13,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 966 conditions, 757 events. 35/757 cut-off events. For 66/69 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2728 event pairs, 2 based on Foata normal form. 2/730 useless extension candidates. Maximal degree in co-relation 951. Up to 24 conditions per place. [2022-11-18 19:50:13,721 INFO L137 encePairwiseOnDemand]: 357/359 looper letters, 0 selfloop transitions, 0 changer transitions 329/329 dead transitions. [2022-11-18 19:50:13,721 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 329 transitions, 908 flow [2022-11-18 19:50:13,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:50:13,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:50:13,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1019 transitions. [2022-11-18 19:50:13,725 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9461467038068709 [2022-11-18 19:50:13,725 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1019 transitions. [2022-11-18 19:50:13,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1019 transitions. [2022-11-18 19:50:13,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:50:13,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1019 transitions. [2022-11-18 19:50:13,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.6666666666667) internal successors, (1019), 3 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states 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 19:50:13,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:50:13,731 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 19:50:13,731 INFO L175 Difference]: Start difference. First operand has 329 places, 330 transitions, 896 flow. Second operand 3 states and 1019 transitions. [2022-11-18 19:50:13,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 329 transitions, 908 flow [2022-11-18 19:50:13,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 329 transitions, 907 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:50:13,737 INFO L231 Difference]: Finished difference. Result has 329 places, 0 transitions, 0 flow [2022-11-18 19:50:13,738 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=329, PETRI_TRANSITIONS=0} [2022-11-18 19:50:13,739 INFO L288 CegarLoopForPetriNet]: 328 programPoint places, 1 predicate places. [2022-11-18 19:50:13,739 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 0 transitions, 0 flow [2022-11-18 19:50:13,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states 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 19:50:13,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (55 of 56 remaining) [2022-11-18 19:50:13,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2022-11-18 19:50:13,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2022-11-18 19:50:13,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2022-11-18 19:50:13,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2022-11-18 19:50:13,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2022-11-18 19:50:13,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (49 of 56 remaining) [2022-11-18 19:50:13,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2022-11-18 19:50:13,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (47 of 56 remaining) [2022-11-18 19:50:13,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (46 of 56 remaining) [2022-11-18 19:50:13,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2022-11-18 19:50:13,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2022-11-18 19:50:13,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2022-11-18 19:50:13,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2022-11-18 19:50:13,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2022-11-18 19:50:13,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2022-11-18 19:50:13,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2022-11-18 19:50:13,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2022-11-18 19:50:13,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2022-11-18 19:50:13,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (36 of 56 remaining) [2022-11-18 19:50:13,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2022-11-18 19:50:13,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2022-11-18 19:50:13,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2022-11-18 19:50:13,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2022-11-18 19:50:13,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2022-11-18 19:50:13,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2022-11-18 19:50:13,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2022-11-18 19:50:13,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2022-11-18 19:50:13,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2022-11-18 19:50:13,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 56 remaining) [2022-11-18 19:50:13,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (25 of 56 remaining) [2022-11-18 19:50:13,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2022-11-18 19:50:13,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 56 remaining) [2022-11-18 19:50:13,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 56 remaining) [2022-11-18 19:50:13,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2022-11-18 19:50:13,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2022-11-18 19:50:13,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2022-11-18 19:50:13,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2022-11-18 19:50:13,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2022-11-18 19:50:13,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2022-11-18 19:50:13,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2022-11-18 19:50:13,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2022-11-18 19:50:13,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2022-11-18 19:50:13,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2022-11-18 19:50:13,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2022-11-18 19:50:13,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2022-11-18 19:50:13,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2022-11-18 19:50:13,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2022-11-18 19:50:13,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2022-11-18 19:50:13,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2022-11-18 19:50:13,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2022-11-18 19:50:13,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2022-11-18 19:50:13,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2022-11-18 19:50:13,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2022-11-18 19:50:13,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2022-11-18 19:50:13,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2022-11-18 19:50:13,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-18 19:50:13,756 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:13,762 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 19:50:13,762 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:50:13,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:50:13 BasicIcfg [2022-11-18 19:50:13,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:50:13,769 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:50:13,770 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:50:13,770 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:50:13,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:49:19" (3/4) ... [2022-11-18 19:50:13,773 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 19:50:13,779 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-18 19:50:13,779 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-18 19:50:13,786 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-18 19:50:13,787 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 19:50:13,787 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 19:50:13,787 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:50:13,851 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:50:13,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:50:13,852 INFO L158 Benchmark]: Toolchain (without parser) took 56171.14ms. Allocated memory was 86.0MB in the beginning and 11.2GB in the end (delta: 11.1GB). Free memory was 50.9MB in the beginning and 8.7GB in the end (delta: -8.7GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2022-11-18 19:50:13,853 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 86.0MB. Free memory was 67.2MB in the beginning and 67.1MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:50:13,853 INFO L158 Benchmark]: CACSL2BoogieTranslator took 507.25ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 50.8MB in the beginning and 83.8MB in the end (delta: -33.0MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-11-18 19:50:13,853 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.72ms. Allocated memory is still 109.1MB. Free memory was 83.8MB in the beginning and 80.5MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:50:13,854 INFO L158 Benchmark]: Boogie Preprocessor took 81.53ms. Allocated memory is still 109.1MB. Free memory was 80.5MB in the beginning and 77.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:50:13,854 INFO L158 Benchmark]: RCFGBuilder took 1046.12ms. Allocated memory is still 109.1MB. Free memory was 77.5MB in the beginning and 73.3MB in the end (delta: 4.2MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2022-11-18 19:50:13,854 INFO L158 Benchmark]: TraceAbstraction took 54340.12ms. Allocated memory was 109.1MB in the beginning and 11.2GB in the end (delta: 11.1GB). Free memory was 72.5MB in the beginning and 8.7GB in the end (delta: -8.6GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2022-11-18 19:50:13,855 INFO L158 Benchmark]: Witness Printer took 81.76ms. Allocated memory is still 11.2GB. Free memory was 8.7GB in the beginning and 8.7GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:50:13,861 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 86.0MB. Free memory was 67.2MB in the beginning and 67.1MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 507.25ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 50.8MB in the beginning and 83.8MB in the end (delta: -33.0MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.72ms. Allocated memory is still 109.1MB. Free memory was 83.8MB in the beginning and 80.5MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.53ms. Allocated memory is still 109.1MB. Free memory was 80.5MB in the beginning and 77.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1046.12ms. Allocated memory is still 109.1MB. Free memory was 77.5MB in the beginning and 73.3MB in the end (delta: 4.2MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * TraceAbstraction took 54340.12ms. Allocated memory was 109.1MB in the beginning and 11.2GB in the end (delta: 11.1GB). Free memory was 72.5MB in the beginning and 8.7GB in the end (delta: -8.6GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. * Witness Printer took 81.76ms. Allocated memory is still 11.2GB. Free memory was 8.7GB in the beginning and 8.7GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 499 locations, 56 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 54.1s, OverallIterations: 23, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 42.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1158 SdHoareTripleChecker+Valid, 4.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1158 mSDsluCounter, 605 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 771 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3386 IncrementalHoareTripleChecker+Invalid, 4157 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 771 mSolverCounterUnsat, 547 mSDtfsCounter, 3386 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1001 GetRequests, 886 SyntacticMatches, 5 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=956occurred in iteration=13, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 4800 NumberOfCodeBlocks, 4716 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 5119 ConstructedInterpolants, 0 QuantifiedInterpolants, 7607 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1108 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 28 InterpolantComputations, 21 PerfectInterpolantSequences, 3263/3446 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 32 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 19:50:13,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7766b8c-bd19-4442-a41d-cf68206122bc/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE