./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b68e155d55184c39a54e11a2c420443b840324481c8995060134516395f2d120 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:20:42,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:20:42,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:20:42,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:20:42,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:20:42,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:20:42,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:20:42,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:20:42,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:20:42,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:20:42,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:20:42,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:20:42,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:20:42,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:20:42,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:20:42,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:20:42,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:20:42,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:20:42,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:20:42,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:20:42,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:20:42,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:20:42,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:20:42,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:20:42,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:20:42,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:20:42,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:20:42,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:20:42,092 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:20:42,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:20:42,093 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:20:42,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:20:42,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:20:42,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:20:42,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:20:42,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:20:42,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:20:42,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:20:42,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:20:42,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:20:42,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:20:42,102 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:20:42,126 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:20:42,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:20:42,127 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:20:42,127 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:20:42,128 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:20:42,128 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:20:42,129 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:20:42,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:20:42,130 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:20:42,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:20:42,130 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:20:42,131 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:20:42,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:20:42,131 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:20:42,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:20:42,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:20:42,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:20:42,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:20:42,133 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:20:42,133 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:20:42,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:20:42,133 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:20:42,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:20:42,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:20:42,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:20:42,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:20:42,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:20:42,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:20:42,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:20:42,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:20:42,136 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:20:42,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:20:42,136 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:20:42,137 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:20:42,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:20:42,137 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_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b68e155d55184c39a54e11a2c420443b840324481c8995060134516395f2d120 [2022-11-16 11:20:42,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:20:42,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:20:42,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:20:42,481 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:20:42,482 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:20:42,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c [2022-11-16 11:20:42,558 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/data/8180cd0c9/49317b12d4cc469c89f6aa573928a6de/FLAG604110cc3 [2022-11-16 11:20:43,158 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:20:43,158 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c [2022-11-16 11:20:43,173 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/data/8180cd0c9/49317b12d4cc469c89f6aa573928a6de/FLAG604110cc3 [2022-11-16 11:20:43,483 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/data/8180cd0c9/49317b12d4cc469c89f6aa573928a6de [2022-11-16 11:20:43,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:20:43,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:20:43,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:20:43,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:20:43,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:20:43,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:20:43" (1/1) ... [2022-11-16 11:20:43,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50b0d7da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:43, skipping insertion in model container [2022-11-16 11:20:43,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:20:43" (1/1) ... [2022-11-16 11:20:43,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:20:43,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:20:43,907 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c[3097,3110] [2022-11-16 11:20:43,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:20:43,928 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:20:43,996 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/sv-benchmarks/c/weaver/chl-chromosome-subst.wvr.c[3097,3110] [2022-11-16 11:20:44,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:20:44,041 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:20:44,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:44 WrapperNode [2022-11-16 11:20:44,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:20:44,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:20:44,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:20:44,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:20:44,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:44" (1/1) ... [2022-11-16 11:20:44,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:44" (1/1) ... [2022-11-16 11:20:44,147 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 17, calls inlined = 25, statements flattened = 463 [2022-11-16 11:20:44,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:20:44,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:20:44,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:20:44,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:20:44,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:44" (1/1) ... [2022-11-16 11:20:44,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:44" (1/1) ... [2022-11-16 11:20:44,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:44" (1/1) ... [2022-11-16 11:20:44,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:44" (1/1) ... [2022-11-16 11:20:44,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:44" (1/1) ... [2022-11-16 11:20:44,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:44" (1/1) ... [2022-11-16 11:20:44,190 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:44" (1/1) ... [2022-11-16 11:20:44,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:44" (1/1) ... [2022-11-16 11:20:44,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:20:44,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:20:44,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:20:44,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:20:44,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:44" (1/1) ... [2022-11-16 11:20:44,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:20:44,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:20:44,253 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:20:44,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:20:44,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:20:44,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:20:44,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:20:44,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:20:44,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:20:44,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:20:44,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:20:44,299 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:20:44,299 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 11:20:44,299 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 11:20:44,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:20:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:20:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:20:44,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:20:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:20:44,302 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:20:44,534 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:20:44,544 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:20:45,421 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:20:45,435 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:20:45,436 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-16 11:20:45,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:20:45 BoogieIcfgContainer [2022-11-16 11:20:45,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:20:45,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:20:45,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:20:45,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:20:45,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:20:43" (1/3) ... [2022-11-16 11:20:45,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65001bf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:20:45, skipping insertion in model container [2022-11-16 11:20:45,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:44" (2/3) ... [2022-11-16 11:20:45,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65001bf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:20:45, skipping insertion in model container [2022-11-16 11:20:45,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:20:45" (3/3) ... [2022-11-16 11:20:45,454 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-subst.wvr.c [2022-11-16 11:20:45,463 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:20:45,473 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:20:45,473 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2022-11-16 11:20:45,473 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:20:45,725 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 11:20:45,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 582 places, 605 transitions, 1234 flow [2022-11-16 11:20:46,087 INFO L130 PetriNetUnfolder]: 33/602 cut-off events. [2022-11-16 11:20:46,088 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:20:46,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 615 conditions, 602 events. 33/602 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1319 event pairs, 0 based on Foata normal form. 0/519 useless extension candidates. Maximal degree in co-relation 426. Up to 2 conditions per place. [2022-11-16 11:20:46,102 INFO L82 GeneralOperation]: Start removeDead. Operand has 582 places, 605 transitions, 1234 flow [2022-11-16 11:20:46,114 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 558 places, 579 transitions, 1176 flow [2022-11-16 11:20:46,123 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:20:46,130 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;@78856766, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:20:46,130 INFO L358 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2022-11-16 11:20:46,138 INFO L130 PetriNetUnfolder]: 3/64 cut-off events. [2022-11-16 11:20:46,138 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:20:46,139 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:20:46,139 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] [2022-11-16 11:20:46,140 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-16 11:20:46,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:20:46,145 INFO L85 PathProgramCache]: Analyzing trace with hash 82514416, now seen corresponding path program 1 times [2022-11-16 11:20:46,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:20:46,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081119101] [2022-11-16 11:20:46,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:20:46,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:20:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:46,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:20:46,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:20:46,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081119101] [2022-11-16 11:20:46,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081119101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:20:46,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:20:46,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:20:46,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847128732] [2022-11-16 11:20:46,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:20:46,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:20:46,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:20:46,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:20:46,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:20:46,434 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 575 out of 605 [2022-11-16 11:20:46,443 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 558 places, 579 transitions, 1176 flow. Second operand has 2 states, 2 states have (on average 575.5) internal successors, (1151), 2 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:20:46,444 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:20:46,444 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 575 of 605 [2022-11-16 11:20:46,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:20:46,723 INFO L130 PetriNetUnfolder]: 9/557 cut-off events. [2022-11-16 11:20:46,723 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-16 11:20:46,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 557 events. 9/557 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1272 event pairs, 0 based on Foata normal form. 31/514 useless extension candidates. Maximal degree in co-relation 411. Up to 7 conditions per place. [2022-11-16 11:20:46,743 INFO L137 encePairwiseOnDemand]: 583/605 looper letters, 6 selfloop transitions, 0 changer transitions 7/557 dead transitions. [2022-11-16 11:20:46,744 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 559 places, 557 transitions, 1144 flow [2022-11-16 11:20:46,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:20:46,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 11:20:46,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1178 transitions. [2022-11-16 11:20:46,772 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9735537190082645 [2022-11-16 11:20:46,773 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1178 transitions. [2022-11-16 11:20:46,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1178 transitions. [2022-11-16 11:20:46,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:20:46,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1178 transitions. [2022-11-16 11:20:46,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 589.0) internal successors, (1178), 2 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:20:46,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 605.0) internal successors, (1815), 3 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:20:46,805 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 605.0) internal successors, (1815), 3 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:20:46,807 INFO L175 Difference]: Start difference. First operand has 558 places, 579 transitions, 1176 flow. Second operand 2 states and 1178 transitions. [2022-11-16 11:20:46,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 559 places, 557 transitions, 1144 flow [2022-11-16 11:20:46,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 557 transitions, 1132 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 11:20:46,832 INFO L231 Difference]: Finished difference. Result has 553 places, 550 transitions, 1106 flow [2022-11-16 11:20:46,835 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1120, PETRI_DIFFERENCE_MINUEND_PLACES=552, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=557, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=557, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1106, PETRI_PLACES=553, PETRI_TRANSITIONS=550} [2022-11-16 11:20:46,840 INFO L288 CegarLoopForPetriNet]: 558 programPoint places, -5 predicate places. [2022-11-16 11:20:46,840 INFO L495 AbstractCegarLoop]: Abstraction has has 553 places, 550 transitions, 1106 flow [2022-11-16 11:20:46,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 575.5) internal successors, (1151), 2 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:20:46,842 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:20:46,842 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] [2022-11-16 11:20:46,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:20:46,843 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-16 11:20:46,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:20:46,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1825324751, now seen corresponding path program 1 times [2022-11-16 11:20:46,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:20:46,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587772505] [2022-11-16 11:20:46,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:20:46,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:20:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:46,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:20:46,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:20:46,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587772505] [2022-11-16 11:20:46,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587772505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:20:46,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:20:46,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:20:46,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292906677] [2022-11-16 11:20:46,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:20:46,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:20:46,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:20:46,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:20:46,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:20:46,989 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 605 [2022-11-16 11:20:47,003 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 550 transitions, 1106 flow. Second operand has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:20:47,003 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:20:47,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 605 [2022-11-16 11:20:47,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:20:47,694 INFO L130 PetriNetUnfolder]: 87/1896 cut-off events. [2022-11-16 11:20:47,694 INFO L131 PetriNetUnfolder]: For 11/16 co-relation queries the response was YES. [2022-11-16 11:20:47,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2026 conditions, 1896 events. 87/1896 cut-off events. For 11/16 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 12267 event pairs, 39 based on Foata normal form. 0/1608 useless extension candidates. Maximal degree in co-relation 2023. Up to 105 conditions per place. [2022-11-16 11:20:47,741 INFO L137 encePairwiseOnDemand]: 602/605 looper letters, 15 selfloop transitions, 2 changer transitions 0/549 dead transitions. [2022-11-16 11:20:47,742 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 549 transitions, 1138 flow [2022-11-16 11:20:47,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:20:47,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:20:47,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1707 transitions. [2022-11-16 11:20:47,748 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9404958677685951 [2022-11-16 11:20:47,748 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1707 transitions. [2022-11-16 11:20:47,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1707 transitions. [2022-11-16 11:20:47,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:20:47,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1707 transitions. [2022-11-16 11:20:47,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:20:47,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:20:47,761 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:20:47,761 INFO L175 Difference]: Start difference. First operand has 553 places, 550 transitions, 1106 flow. Second operand 3 states and 1707 transitions. [2022-11-16 11:20:47,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 549 transitions, 1138 flow [2022-11-16 11:20:47,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 547 places, 549 transitions, 1138 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:20:47,772 INFO L231 Difference]: Finished difference. Result has 547 places, 549 transitions, 1108 flow [2022-11-16 11:20:47,773 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1104, PETRI_DIFFERENCE_MINUEND_PLACES=545, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1108, PETRI_PLACES=547, PETRI_TRANSITIONS=549} [2022-11-16 11:20:47,774 INFO L288 CegarLoopForPetriNet]: 558 programPoint places, -11 predicate places. [2022-11-16 11:20:47,774 INFO L495 AbstractCegarLoop]: Abstraction has has 547 places, 549 transitions, 1108 flow [2022-11-16 11:20:47,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:20:47,776 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:20:47,777 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] [2022-11-16 11:20:47,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:20:47,777 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-16 11:20:47,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:20:47,779 INFO L85 PathProgramCache]: Analyzing trace with hash -996331704, now seen corresponding path program 1 times [2022-11-16 11:20:47,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:20:47,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059082405] [2022-11-16 11:20:47,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:20:47,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:20:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:48,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:20:48,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:20:48,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059082405] [2022-11-16 11:20:48,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059082405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:20:48,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:20:48,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:20:48,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395737520] [2022-11-16 11:20:48,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:20:48,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:20:48,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:20:48,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:20:48,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:20:48,499 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 605 [2022-11-16 11:20:48,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 547 places, 549 transitions, 1108 flow. Second operand has 6 states, 6 states have (on average 471.8333333333333) internal successors, (2831), 6 states have internal predecessors, (2831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:20:48,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:20:48,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 605 [2022-11-16 11:20:48,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:21:26,857 INFO L130 PetriNetUnfolder]: 49022/197659 cut-off events. [2022-11-16 11:21:26,857 INFO L131 PetriNetUnfolder]: For 349/614 co-relation queries the response was YES. [2022-11-16 11:21:28,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261657 conditions, 197659 events. 49022/197659 cut-off events. For 349/614 co-relation queries the response was YES. Maximal size of possible extension queue 3431. Compared 3236822 event pairs, 42984 based on Foata normal form. 0/164463 useless extension candidates. Maximal degree in co-relation 261653. Up to 63795 conditions per place. [2022-11-16 11:21:29,282 INFO L137 encePairwiseOnDemand]: 587/605 looper letters, 93 selfloop transitions, 15 changer transitions 0/546 dead transitions. [2022-11-16 11:21:29,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 546 transitions, 1318 flow [2022-11-16 11:21:29,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:21:29,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:21:29,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2931 transitions. [2022-11-16 11:21:29,291 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8074380165289257 [2022-11-16 11:21:29,292 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2931 transitions. [2022-11-16 11:21:29,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2931 transitions. [2022-11-16 11:21:29,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:21:29,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2931 transitions. [2022-11-16 11:21:29,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 488.5) internal successors, (2931), 6 states have internal predecessors, (2931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:29,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:29,316 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:29,317 INFO L175 Difference]: Start difference. First operand has 547 places, 549 transitions, 1108 flow. Second operand 6 states and 2931 transitions. [2022-11-16 11:21:29,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 546 transitions, 1318 flow [2022-11-16 11:21:29,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 547 places, 546 transitions, 1314 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:21:29,330 INFO L231 Difference]: Finished difference. Result has 547 places, 546 transitions, 1128 flow [2022-11-16 11:21:29,331 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1098, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=531, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1128, PETRI_PLACES=547, PETRI_TRANSITIONS=546} [2022-11-16 11:21:29,332 INFO L288 CegarLoopForPetriNet]: 558 programPoint places, -11 predicate places. [2022-11-16 11:21:29,332 INFO L495 AbstractCegarLoop]: Abstraction has has 547 places, 546 transitions, 1128 flow [2022-11-16 11:21:29,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 471.8333333333333) internal successors, (2831), 6 states have internal predecessors, (2831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:29,335 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:21:29,335 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] [2022-11-16 11:21:29,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:21:29,336 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-16 11:21:29,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:21:29,337 INFO L85 PathProgramCache]: Analyzing trace with hash -979806331, now seen corresponding path program 1 times [2022-11-16 11:21:29,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:21:29,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467280917] [2022-11-16 11:21:29,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:29,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:21:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:29,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:21:29,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:21:29,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467280917] [2022-11-16 11:21:29,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467280917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:21:29,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:21:29,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:21:29,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346360280] [2022-11-16 11:21:29,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:21:29,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:21:29,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:21:29,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:21:29,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:21:29,430 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 605 [2022-11-16 11:21:29,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 547 places, 546 transitions, 1128 flow. Second operand has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:29,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:21:29,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 605 [2022-11-16 11:21:29,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:21:29,762 INFO L130 PetriNetUnfolder]: 55/1351 cut-off events. [2022-11-16 11:21:29,762 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-16 11:21:29,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1452 conditions, 1351 events. 55/1351 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6818 event pairs, 21 based on Foata normal form. 0/1156 useless extension candidates. Maximal degree in co-relation 1448. Up to 72 conditions per place. [2022-11-16 11:21:29,784 INFO L137 encePairwiseOnDemand]: 602/605 looper letters, 15 selfloop transitions, 2 changer transitions 0/545 dead transitions. [2022-11-16 11:21:29,785 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 545 transitions, 1160 flow [2022-11-16 11:21:29,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:21:29,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:21:29,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1707 transitions. [2022-11-16 11:21:29,790 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9404958677685951 [2022-11-16 11:21:29,790 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1707 transitions. [2022-11-16 11:21:29,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1707 transitions. [2022-11-16 11:21:29,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:21:29,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1707 transitions. [2022-11-16 11:21:29,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:29,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:29,804 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:29,804 INFO L175 Difference]: Start difference. First operand has 547 places, 546 transitions, 1128 flow. Second operand 3 states and 1707 transitions. [2022-11-16 11:21:29,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 545 transitions, 1160 flow [2022-11-16 11:21:29,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 545 transitions, 1130 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:21:29,815 INFO L231 Difference]: Finished difference. Result has 543 places, 545 transitions, 1100 flow [2022-11-16 11:21:29,816 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1096, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=543, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1100, PETRI_PLACES=543, PETRI_TRANSITIONS=545} [2022-11-16 11:21:29,817 INFO L288 CegarLoopForPetriNet]: 558 programPoint places, -15 predicate places. [2022-11-16 11:21:29,817 INFO L495 AbstractCegarLoop]: Abstraction has has 543 places, 545 transitions, 1100 flow [2022-11-16 11:21:29,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:29,819 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:21:29,819 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] [2022-11-16 11:21:29,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:21:29,820 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-16 11:21:29,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:21:29,821 INFO L85 PathProgramCache]: Analyzing trace with hash 449891909, now seen corresponding path program 1 times [2022-11-16 11:21:29,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:21:29,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78844599] [2022-11-16 11:21:29,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:29,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:21:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:30,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:21:30,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:21:30,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78844599] [2022-11-16 11:21:30,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78844599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:21:30,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:21:30,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:21:30,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810864464] [2022-11-16 11:21:30,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:21:30,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:21:30,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:21:30,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:21:30,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:21:30,096 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 605 [2022-11-16 11:21:30,099 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 543 places, 545 transitions, 1100 flow. Second operand has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:30,099 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:21:30,099 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 605 [2022-11-16 11:21:30,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:21:30,494 INFO L130 PetriNetUnfolder]: 81/1595 cut-off events. [2022-11-16 11:21:30,494 INFO L131 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-11-16 11:21:30,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1713 conditions, 1595 events. 81/1595 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 8830 event pairs, 39 based on Foata normal form. 0/1364 useless extension candidates. Maximal degree in co-relation 1709. Up to 105 conditions per place. [2022-11-16 11:21:30,518 INFO L137 encePairwiseOnDemand]: 602/605 looper letters, 15 selfloop transitions, 2 changer transitions 0/544 dead transitions. [2022-11-16 11:21:30,518 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 544 transitions, 1132 flow [2022-11-16 11:21:30,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:21:30,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:21:30,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1707 transitions. [2022-11-16 11:21:30,524 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9404958677685951 [2022-11-16 11:21:30,524 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1707 transitions. [2022-11-16 11:21:30,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1707 transitions. [2022-11-16 11:21:30,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:21:30,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1707 transitions. [2022-11-16 11:21:30,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:30,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:30,538 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:30,538 INFO L175 Difference]: Start difference. First operand has 543 places, 545 transitions, 1100 flow. Second operand 3 states and 1707 transitions. [2022-11-16 11:21:30,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 544 transitions, 1132 flow [2022-11-16 11:21:30,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 544 transitions, 1128 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:21:30,550 INFO L231 Difference]: Finished difference. Result has 542 places, 544 transitions, 1098 flow [2022-11-16 11:21:30,551 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1094, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1098, PETRI_PLACES=542, PETRI_TRANSITIONS=544} [2022-11-16 11:21:30,552 INFO L288 CegarLoopForPetriNet]: 558 programPoint places, -16 predicate places. [2022-11-16 11:21:30,552 INFO L495 AbstractCegarLoop]: Abstraction has has 542 places, 544 transitions, 1098 flow [2022-11-16 11:21:30,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:30,554 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:21:30,554 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] [2022-11-16 11:21:30,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:21:30,555 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-16 11:21:30,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:21:30,556 INFO L85 PathProgramCache]: Analyzing trace with hash 19383835, now seen corresponding path program 1 times [2022-11-16 11:21:30,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:21:30,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183697065] [2022-11-16 11:21:30,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:30,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:21:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:30,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:21:30,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:21:30,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183697065] [2022-11-16 11:21:30,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183697065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:21:30,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:21:30,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:21:30,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602998680] [2022-11-16 11:21:30,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:21:30,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:21:30,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:21:30,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:21:30,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:21:30,642 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 605 [2022-11-16 11:21:30,644 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 544 transitions, 1098 flow. Second operand has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:30,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:21:30,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 605 [2022-11-16 11:21:30,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:21:30,984 INFO L130 PetriNetUnfolder]: 68/1572 cut-off events. [2022-11-16 11:21:30,984 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 11:21:31,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1685 conditions, 1572 events. 68/1572 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9517 event pairs, 39 based on Foata normal form. 0/1325 useless extension candidates. Maximal degree in co-relation 1681. Up to 85 conditions per place. [2022-11-16 11:21:31,009 INFO L137 encePairwiseOnDemand]: 602/605 looper letters, 15 selfloop transitions, 2 changer transitions 0/543 dead transitions. [2022-11-16 11:21:31,009 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 543 transitions, 1130 flow [2022-11-16 11:21:31,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:21:31,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:21:31,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1707 transitions. [2022-11-16 11:21:31,014 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9404958677685951 [2022-11-16 11:21:31,015 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1707 transitions. [2022-11-16 11:21:31,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1707 transitions. [2022-11-16 11:21:31,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:21:31,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1707 transitions. [2022-11-16 11:21:31,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:31,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:31,027 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:31,027 INFO L175 Difference]: Start difference. First operand has 542 places, 544 transitions, 1098 flow. Second operand 3 states and 1707 transitions. [2022-11-16 11:21:31,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 543 transitions, 1130 flow [2022-11-16 11:21:31,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 541 places, 543 transitions, 1126 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:21:31,038 INFO L231 Difference]: Finished difference. Result has 541 places, 543 transitions, 1096 flow [2022-11-16 11:21:31,040 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1092, PETRI_DIFFERENCE_MINUEND_PLACES=539, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=541, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1096, PETRI_PLACES=541, PETRI_TRANSITIONS=543} [2022-11-16 11:21:31,041 INFO L288 CegarLoopForPetriNet]: 558 programPoint places, -17 predicate places. [2022-11-16 11:21:31,041 INFO L495 AbstractCegarLoop]: Abstraction has has 541 places, 543 transitions, 1096 flow [2022-11-16 11:21:31,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:31,042 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:21:31,042 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] [2022-11-16 11:21:31,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:21:31,043 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-16 11:21:31,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:21:31,044 INFO L85 PathProgramCache]: Analyzing trace with hash 198375490, now seen corresponding path program 1 times [2022-11-16 11:21:31,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:21:31,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529746623] [2022-11-16 11:21:31,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:31,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:21:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:31,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:21:31,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:21:31,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529746623] [2022-11-16 11:21:31,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529746623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:21:31,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:21:31,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:21:31,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961792701] [2022-11-16 11:21:31,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:21:31,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:21:31,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:21:31,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:21:31,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:21:31,112 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 605 [2022-11-16 11:21:31,115 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 543 transitions, 1096 flow. Second operand has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:31,115 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:21:31,115 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 605 [2022-11-16 11:21:31,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:21:31,447 INFO L130 PetriNetUnfolder]: 46/1349 cut-off events. [2022-11-16 11:21:31,448 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-16 11:21:31,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1423 conditions, 1349 events. 46/1349 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 7054 event pairs, 21 based on Foata normal form. 0/1153 useless extension candidates. Maximal degree in co-relation 1419. Up to 58 conditions per place. [2022-11-16 11:21:31,475 INFO L137 encePairwiseOnDemand]: 602/605 looper letters, 15 selfloop transitions, 2 changer transitions 0/542 dead transitions. [2022-11-16 11:21:31,475 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 542 transitions, 1128 flow [2022-11-16 11:21:31,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:21:31,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:21:31,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1707 transitions. [2022-11-16 11:21:31,480 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9404958677685951 [2022-11-16 11:21:31,480 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1707 transitions. [2022-11-16 11:21:31,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1707 transitions. [2022-11-16 11:21:31,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:21:31,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1707 transitions. [2022-11-16 11:21:31,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:31,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:31,490 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:31,490 INFO L175 Difference]: Start difference. First operand has 541 places, 543 transitions, 1096 flow. Second operand 3 states and 1707 transitions. [2022-11-16 11:21:31,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 542 transitions, 1128 flow [2022-11-16 11:21:31,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 542 transitions, 1124 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:21:31,499 INFO L231 Difference]: Finished difference. Result has 540 places, 542 transitions, 1094 flow [2022-11-16 11:21:31,500 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1090, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=542, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1094, PETRI_PLACES=540, PETRI_TRANSITIONS=542} [2022-11-16 11:21:31,501 INFO L288 CegarLoopForPetriNet]: 558 programPoint places, -18 predicate places. [2022-11-16 11:21:31,501 INFO L495 AbstractCegarLoop]: Abstraction has has 540 places, 542 transitions, 1094 flow [2022-11-16 11:21:31,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:31,502 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:21:31,502 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] [2022-11-16 11:21:31,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:21:31,502 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-16 11:21:31,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:21:31,503 INFO L85 PathProgramCache]: Analyzing trace with hash -660455882, now seen corresponding path program 1 times [2022-11-16 11:21:31,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:21:31,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422991920] [2022-11-16 11:21:31,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:31,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:21:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:31,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:21:31,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:21:31,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422991920] [2022-11-16 11:21:31,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422991920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:21:31,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:21:31,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:21:31,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068296434] [2022-11-16 11:21:31,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:21:31,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:21:31,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:21:31,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:21:31,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:21:31,568 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 605 [2022-11-16 11:21:31,569 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 542 transitions, 1094 flow. Second operand has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:31,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:21:31,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 605 [2022-11-16 11:21:31,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:21:31,921 INFO L130 PetriNetUnfolder]: 70/1583 cut-off events. [2022-11-16 11:21:31,921 INFO L131 PetriNetUnfolder]: For 21/29 co-relation queries the response was YES. [2022-11-16 11:21:31,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1681 conditions, 1583 events. 70/1583 cut-off events. For 21/29 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 9276 event pairs, 39 based on Foata normal form. 0/1351 useless extension candidates. Maximal degree in co-relation 1677. Up to 85 conditions per place. [2022-11-16 11:21:31,942 INFO L137 encePairwiseOnDemand]: 602/605 looper letters, 15 selfloop transitions, 2 changer transitions 0/541 dead transitions. [2022-11-16 11:21:31,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 541 transitions, 1126 flow [2022-11-16 11:21:31,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:21:31,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:21:31,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1707 transitions. [2022-11-16 11:21:31,946 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9404958677685951 [2022-11-16 11:21:31,947 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1707 transitions. [2022-11-16 11:21:31,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1707 transitions. [2022-11-16 11:21:31,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:21:31,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1707 transitions. [2022-11-16 11:21:31,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:31,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:31,956 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:31,956 INFO L175 Difference]: Start difference. First operand has 540 places, 542 transitions, 1094 flow. Second operand 3 states and 1707 transitions. [2022-11-16 11:21:31,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 541 transitions, 1126 flow [2022-11-16 11:21:31,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 541 transitions, 1122 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:21:31,967 INFO L231 Difference]: Finished difference. Result has 539 places, 541 transitions, 1092 flow [2022-11-16 11:21:31,968 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1088, PETRI_DIFFERENCE_MINUEND_PLACES=537, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1092, PETRI_PLACES=539, PETRI_TRANSITIONS=541} [2022-11-16 11:21:31,968 INFO L288 CegarLoopForPetriNet]: 558 programPoint places, -19 predicate places. [2022-11-16 11:21:31,969 INFO L495 AbstractCegarLoop]: Abstraction has has 539 places, 541 transitions, 1092 flow [2022-11-16 11:21:31,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:31,970 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:21:31,970 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] [2022-11-16 11:21:31,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:21:31,971 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-16 11:21:31,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:21:31,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1435850668, now seen corresponding path program 1 times [2022-11-16 11:21:31,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:21:31,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119938633] [2022-11-16 11:21:31,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:31,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:21:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:32,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:21:32,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:21:32,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119938633] [2022-11-16 11:21:32,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119938633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:21:32,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:21:32,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:21:32,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295654412] [2022-11-16 11:21:32,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:21:32,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:21:32,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:21:32,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:21:32,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:21:32,042 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 605 [2022-11-16 11:21:32,044 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 541 transitions, 1092 flow. Second operand has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:32,044 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:21:32,044 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 605 [2022-11-16 11:21:32,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:21:32,541 INFO L130 PetriNetUnfolder]: 49/1564 cut-off events. [2022-11-16 11:21:32,541 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 11:21:32,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1631 conditions, 1564 events. 49/1564 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 9564 event pairs, 13 based on Foata normal form. 0/1345 useless extension candidates. Maximal degree in co-relation 1627. Up to 43 conditions per place. [2022-11-16 11:21:32,575 INFO L137 encePairwiseOnDemand]: 601/605 looper letters, 14 selfloop transitions, 2 changer transitions 0/543 dead transitions. [2022-11-16 11:21:32,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 543 transitions, 1130 flow [2022-11-16 11:21:32,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:21:32,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:21:32,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1716 transitions. [2022-11-16 11:21:32,581 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9454545454545454 [2022-11-16 11:21:32,582 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1716 transitions. [2022-11-16 11:21:32,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1716 transitions. [2022-11-16 11:21:32,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:21:32,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1716 transitions. [2022-11-16 11:21:32,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 572.0) internal successors, (1716), 3 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:32,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:32,593 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:32,594 INFO L175 Difference]: Start difference. First operand has 539 places, 541 transitions, 1092 flow. Second operand 3 states and 1716 transitions. [2022-11-16 11:21:32,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 543 transitions, 1130 flow [2022-11-16 11:21:32,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 543 transitions, 1126 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:21:32,608 INFO L231 Difference]: Finished difference. Result has 538 places, 541 transitions, 1098 flow [2022-11-16 11:21:32,609 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=535, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1098, PETRI_PLACES=538, PETRI_TRANSITIONS=541} [2022-11-16 11:21:32,610 INFO L288 CegarLoopForPetriNet]: 558 programPoint places, -20 predicate places. [2022-11-16 11:21:32,610 INFO L495 AbstractCegarLoop]: Abstraction has has 538 places, 541 transitions, 1098 flow [2022-11-16 11:21:32,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:32,612 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:21:32,612 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:21:32,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:21:32,612 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-16 11:21:32,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:21:32,613 INFO L85 PathProgramCache]: Analyzing trace with hash -400552966, now seen corresponding path program 1 times [2022-11-16 11:21:32,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:21:32,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545905165] [2022-11-16 11:21:32,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:32,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:21:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:32,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:21:32,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:21:32,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545905165] [2022-11-16 11:21:32,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545905165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:21:32,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:21:32,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:21:32,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85578593] [2022-11-16 11:21:32,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:21:32,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:21:32,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:21:32,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:21:32,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:21:32,696 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 605 [2022-11-16 11:21:32,698 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 541 transitions, 1098 flow. Second operand has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:32,698 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:21:32,699 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 605 [2022-11-16 11:21:32,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:21:33,082 INFO L130 PetriNetUnfolder]: 36/1216 cut-off events. [2022-11-16 11:21:33,082 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-16 11:21:33,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1269 conditions, 1216 events. 36/1216 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5793 event pairs, 6 based on Foata normal form. 0/1056 useless extension candidates. Maximal degree in co-relation 1265. Up to 31 conditions per place. [2022-11-16 11:21:33,114 INFO L137 encePairwiseOnDemand]: 601/605 looper letters, 14 selfloop transitions, 2 changer transitions 0/543 dead transitions. [2022-11-16 11:21:33,115 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 543 transitions, 1136 flow [2022-11-16 11:21:33,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:21:33,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:21:33,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1716 transitions. [2022-11-16 11:21:33,120 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9454545454545454 [2022-11-16 11:21:33,120 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1716 transitions. [2022-11-16 11:21:33,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1716 transitions. [2022-11-16 11:21:33,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:21:33,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1716 transitions. [2022-11-16 11:21:33,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 572.0) internal successors, (1716), 3 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:33,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:33,131 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:33,131 INFO L175 Difference]: Start difference. First operand has 538 places, 541 transitions, 1098 flow. Second operand 3 states and 1716 transitions. [2022-11-16 11:21:33,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 543 transitions, 1136 flow [2022-11-16 11:21:33,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 543 transitions, 1136 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:21:33,144 INFO L231 Difference]: Finished difference. Result has 539 places, 541 transitions, 1108 flow [2022-11-16 11:21:33,146 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1094, PETRI_DIFFERENCE_MINUEND_PLACES=536, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1108, PETRI_PLACES=539, PETRI_TRANSITIONS=541} [2022-11-16 11:21:33,147 INFO L288 CegarLoopForPetriNet]: 558 programPoint places, -19 predicate places. [2022-11-16 11:21:33,147 INFO L495 AbstractCegarLoop]: Abstraction has has 539 places, 541 transitions, 1108 flow [2022-11-16 11:21:33,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:33,149 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:21:33,149 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:21:33,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:21:33,149 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-16 11:21:33,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:21:33,150 INFO L85 PathProgramCache]: Analyzing trace with hash -350902917, now seen corresponding path program 1 times [2022-11-16 11:21:33,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:21:33,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998161315] [2022-11-16 11:21:33,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:33,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:21:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:33,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:21:33,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:21:33,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998161315] [2022-11-16 11:21:33,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998161315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:21:33,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:21:33,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:21:33,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111497668] [2022-11-16 11:21:33,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:21:33,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:21:33,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:21:33,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:21:33,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:21:33,260 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 605 [2022-11-16 11:21:33,262 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 541 transitions, 1108 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:33,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:21:33,263 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 605 [2022-11-16 11:21:33,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:21:33,590 INFO L130 PetriNetUnfolder]: 55/1142 cut-off events. [2022-11-16 11:21:33,591 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:21:33,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1285 conditions, 1142 events. 55/1142 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6052 event pairs, 28 based on Foata normal form. 0/1001 useless extension candidates. Maximal degree in co-relation 1280. Up to 80 conditions per place. [2022-11-16 11:21:33,619 INFO L137 encePairwiseOnDemand]: 602/605 looper letters, 25 selfloop transitions, 2 changer transitions 0/542 dead transitions. [2022-11-16 11:21:33,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 542 transitions, 1166 flow [2022-11-16 11:21:33,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:21:33,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:21:33,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1693 transitions. [2022-11-16 11:21:33,624 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9327823691460055 [2022-11-16 11:21:33,624 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1693 transitions. [2022-11-16 11:21:33,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1693 transitions. [2022-11-16 11:21:33,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:21:33,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1693 transitions. [2022-11-16 11:21:33,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:33,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:33,633 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:33,633 INFO L175 Difference]: Start difference. First operand has 539 places, 541 transitions, 1108 flow. Second operand 3 states and 1693 transitions. [2022-11-16 11:21:33,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 542 transitions, 1166 flow [2022-11-16 11:21:33,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 542 transitions, 1166 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:21:33,646 INFO L231 Difference]: Finished difference. Result has 540 places, 540 transitions, 1110 flow [2022-11-16 11:21:33,647 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1106, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1110, PETRI_PLACES=540, PETRI_TRANSITIONS=540} [2022-11-16 11:21:33,648 INFO L288 CegarLoopForPetriNet]: 558 programPoint places, -18 predicate places. [2022-11-16 11:21:33,648 INFO L495 AbstractCegarLoop]: Abstraction has has 540 places, 540 transitions, 1110 flow [2022-11-16 11:21:33,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:33,649 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:21:33,649 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:21:33,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:21:33,650 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-16 11:21:33,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:21:33,650 INFO L85 PathProgramCache]: Analyzing trace with hash 279889538, now seen corresponding path program 1 times [2022-11-16 11:21:33,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:21:33,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118034665] [2022-11-16 11:21:33,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:33,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:21:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:33,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:21:33,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:21:33,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118034665] [2022-11-16 11:21:33,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118034665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:21:33,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:21:33,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:21:33,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935514597] [2022-11-16 11:21:33,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:21:33,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:21:33,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:21:33,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:21:33,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:21:33,728 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 605 [2022-11-16 11:21:33,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 540 transitions, 1110 flow. Second operand has 3 states, 3 states have (on average 568.0) internal successors, (1704), 3 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:33,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:21:33,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 605 [2022-11-16 11:21:33,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:21:34,252 INFO L130 PetriNetUnfolder]: 77/2162 cut-off events. [2022-11-16 11:21:34,252 INFO L131 PetriNetUnfolder]: For 13/17 co-relation queries the response was YES. [2022-11-16 11:21:34,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2261 conditions, 2162 events. 77/2162 cut-off events. For 13/17 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 15085 event pairs, 10 based on Foata normal form. 0/1867 useless extension candidates. Maximal degree in co-relation 2255. Up to 66 conditions per place. [2022-11-16 11:21:34,298 INFO L137 encePairwiseOnDemand]: 601/605 looper letters, 14 selfloop transitions, 2 changer transitions 0/542 dead transitions. [2022-11-16 11:21:34,298 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 542 transitions, 1148 flow [2022-11-16 11:21:34,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:21:34,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:21:34,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1716 transitions. [2022-11-16 11:21:34,304 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9454545454545454 [2022-11-16 11:21:34,304 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1716 transitions. [2022-11-16 11:21:34,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1716 transitions. [2022-11-16 11:21:34,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:21:34,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1716 transitions. [2022-11-16 11:21:34,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 572.0) internal successors, (1716), 3 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:34,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:34,314 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:34,314 INFO L175 Difference]: Start difference. First operand has 540 places, 540 transitions, 1110 flow. Second operand 3 states and 1716 transitions. [2022-11-16 11:21:34,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 542 transitions, 1148 flow [2022-11-16 11:21:34,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 542 transitions, 1144 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:21:34,326 INFO L231 Difference]: Finished difference. Result has 539 places, 540 transitions, 1116 flow [2022-11-16 11:21:34,327 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=536, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=538, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=536, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1116, PETRI_PLACES=539, PETRI_TRANSITIONS=540} [2022-11-16 11:21:34,330 INFO L288 CegarLoopForPetriNet]: 558 programPoint places, -19 predicate places. [2022-11-16 11:21:34,330 INFO L495 AbstractCegarLoop]: Abstraction has has 539 places, 540 transitions, 1116 flow [2022-11-16 11:21:34,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 568.0) internal successors, (1704), 3 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:34,331 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:21:34,332 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:21:34,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:21:34,332 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-16 11:21:34,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:21:34,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1798322980, now seen corresponding path program 1 times [2022-11-16 11:21:34,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:21:34,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138693398] [2022-11-16 11:21:34,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:34,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:21:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:34,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:21:34,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:21:34,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138693398] [2022-11-16 11:21:34,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138693398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:21:34,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:21:34,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:21:34,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960059494] [2022-11-16 11:21:34,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:21:34,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:21:34,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:21:34,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:21:34,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:21:34,417 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 605 [2022-11-16 11:21:34,419 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 540 transitions, 1116 flow. Second operand has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:34,419 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:21:34,419 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 605 [2022-11-16 11:21:34,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:21:34,965 INFO L130 PetriNetUnfolder]: 77/1975 cut-off events. [2022-11-16 11:21:34,965 INFO L131 PetriNetUnfolder]: For 11/15 co-relation queries the response was YES. [2022-11-16 11:21:34,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2099 conditions, 1975 events. 77/1975 cut-off events. For 11/15 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 13027 event pairs, 4 based on Foata normal form. 1/1713 useless extension candidates. Maximal degree in co-relation 2093. Up to 69 conditions per place. [2022-11-16 11:21:34,997 INFO L137 encePairwiseOnDemand]: 601/605 looper letters, 17 selfloop transitions, 2 changer transitions 0/545 dead transitions. [2022-11-16 11:21:34,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 545 transitions, 1169 flow [2022-11-16 11:21:34,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:21:34,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:21:35,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1719 transitions. [2022-11-16 11:21:35,002 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.947107438016529 [2022-11-16 11:21:35,002 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1719 transitions. [2022-11-16 11:21:35,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1719 transitions. [2022-11-16 11:21:35,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:21:35,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1719 transitions. [2022-11-16 11:21:35,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 573.0) internal successors, (1719), 3 states have internal predecessors, (1719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:35,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:35,011 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:35,011 INFO L175 Difference]: Start difference. First operand has 539 places, 540 transitions, 1116 flow. Second operand 3 states and 1719 transitions. [2022-11-16 11:21:35,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 545 transitions, 1169 flow [2022-11-16 11:21:35,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 545 transitions, 1169 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:21:35,020 INFO L231 Difference]: Finished difference. Result has 540 places, 540 transitions, 1126 flow [2022-11-16 11:21:35,021 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1112, PETRI_DIFFERENCE_MINUEND_PLACES=537, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=538, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=536, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1126, PETRI_PLACES=540, PETRI_TRANSITIONS=540} [2022-11-16 11:21:35,022 INFO L288 CegarLoopForPetriNet]: 558 programPoint places, -18 predicate places. [2022-11-16 11:21:35,022 INFO L495 AbstractCegarLoop]: Abstraction has has 540 places, 540 transitions, 1126 flow [2022-11-16 11:21:35,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:35,023 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:21:35,023 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:21:35,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:21:35,024 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-16 11:21:35,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:21:35,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1107103324, now seen corresponding path program 1 times [2022-11-16 11:21:35,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:21:35,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26909609] [2022-11-16 11:21:35,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:35,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:21:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:35,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:21:35,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:21:35,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26909609] [2022-11-16 11:21:35,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26909609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:21:35,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:21:35,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:21:35,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348656513] [2022-11-16 11:21:35,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:21:35,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:21:35,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:21:35,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:21:35,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:21:35,186 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 521 out of 605 [2022-11-16 11:21:35,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 540 transitions, 1126 flow. Second operand has 5 states, 5 states have (on average 526.4) internal successors, (2632), 5 states have internal predecessors, (2632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:35,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:21:35,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 521 of 605 [2022-11-16 11:21:35,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:21:35,672 INFO L130 PetriNetUnfolder]: 33/1214 cut-off events. [2022-11-16 11:21:35,672 INFO L131 PetriNetUnfolder]: For 8/14 co-relation queries the response was YES. [2022-11-16 11:21:35,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1352 conditions, 1214 events. 33/1214 cut-off events. For 8/14 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5650 event pairs, 0 based on Foata normal form. 0/1066 useless extension candidates. Maximal degree in co-relation 1345. Up to 58 conditions per place. [2022-11-16 11:21:35,703 INFO L137 encePairwiseOnDemand]: 590/605 looper letters, 72 selfloop transitions, 12 changer transitions 0/567 dead transitions. [2022-11-16 11:21:35,704 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 567 transitions, 1348 flow [2022-11-16 11:21:35,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:21:35,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:21:35,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2692 transitions. [2022-11-16 11:21:35,710 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8899173553719009 [2022-11-16 11:21:35,710 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2692 transitions. [2022-11-16 11:21:35,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2692 transitions. [2022-11-16 11:21:35,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:21:35,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2692 transitions. [2022-11-16 11:21:35,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 538.4) internal successors, (2692), 5 states have internal predecessors, (2692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:35,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 605.0) internal successors, (3630), 6 states have internal predecessors, (3630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:35,724 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 605.0) internal successors, (3630), 6 states have internal predecessors, (3630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:35,724 INFO L175 Difference]: Start difference. First operand has 540 places, 540 transitions, 1126 flow. Second operand 5 states and 2692 transitions. [2022-11-16 11:21:35,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 567 transitions, 1348 flow [2022-11-16 11:21:35,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 567 transitions, 1348 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:21:35,734 INFO L231 Difference]: Finished difference. Result has 545 places, 543 transitions, 1174 flow [2022-11-16 11:21:35,735 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1126, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1174, PETRI_PLACES=545, PETRI_TRANSITIONS=543} [2022-11-16 11:21:35,737 INFO L288 CegarLoopForPetriNet]: 558 programPoint places, -13 predicate places. [2022-11-16 11:21:35,738 INFO L495 AbstractCegarLoop]: Abstraction has has 545 places, 543 transitions, 1174 flow [2022-11-16 11:21:35,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 526.4) internal successors, (2632), 5 states have internal predecessors, (2632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:35,740 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:21:35,740 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:21:35,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:21:35,740 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-16 11:21:35,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:21:35,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1549848950, now seen corresponding path program 1 times [2022-11-16 11:21:35,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:21:35,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31203467] [2022-11-16 11:21:35,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:35,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:21:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:36,041 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 11:21:36,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:21:36,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31203467] [2022-11-16 11:21:36,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31203467] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:21:36,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001032631] [2022-11-16 11:21:36,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:36,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:21:36,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:21:36,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:21:36,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:21:36,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:36,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 11:21:36,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:21:36,553 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 11:21:36,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:21:36,703 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 11:21:36,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001032631] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:21:36,703 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:21:36,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-11-16 11:21:36,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795460622] [2022-11-16 11:21:36,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:21:36,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 11:21:36,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:21:36,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 11:21:36,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:21:36,716 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 518 out of 605 [2022-11-16 11:21:36,722 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 543 transitions, 1174 flow. Second operand has 15 states, 15 states have (on average 523.8) internal successors, (7857), 15 states have internal predecessors, (7857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:36,722 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:21:36,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 518 of 605 [2022-11-16 11:21:36,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:21:37,521 INFO L130 PetriNetUnfolder]: 33/1262 cut-off events. [2022-11-16 11:21:37,521 INFO L131 PetriNetUnfolder]: For 20/26 co-relation queries the response was YES. [2022-11-16 11:21:37,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1465 conditions, 1262 events. 33/1262 cut-off events. For 20/26 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5576 event pairs, 0 based on Foata normal form. 6/1123 useless extension candidates. Maximal degree in co-relation 1456. Up to 34 conditions per place. [2022-11-16 11:21:37,553 INFO L137 encePairwiseOnDemand]: 581/605 looper letters, 90 selfloop transitions, 33 changer transitions 0/603 dead transitions. [2022-11-16 11:21:37,554 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 555 places, 603 transitions, 1546 flow [2022-11-16 11:21:37,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:21:37,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:21:37,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 5827 transitions. [2022-11-16 11:21:37,565 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8755822689706987 [2022-11-16 11:21:37,565 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 5827 transitions. [2022-11-16 11:21:37,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 5827 transitions. [2022-11-16 11:21:37,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:21:37,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 5827 transitions. [2022-11-16 11:21:37,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 529.7272727272727) internal successors, (5827), 11 states have internal predecessors, (5827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:37,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 605.0) internal successors, (7260), 12 states have internal predecessors, (7260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:37,596 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 605.0) internal successors, (7260), 12 states have internal predecessors, (7260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:37,596 INFO L175 Difference]: Start difference. First operand has 545 places, 543 transitions, 1174 flow. Second operand 11 states and 5827 transitions. [2022-11-16 11:21:37,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 555 places, 603 transitions, 1546 flow [2022-11-16 11:21:37,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 552 places, 603 transitions, 1528 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:21:37,609 INFO L231 Difference]: Finished difference. Result has 555 places, 561 transitions, 1323 flow [2022-11-16 11:21:37,611 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1156, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=519, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1323, PETRI_PLACES=555, PETRI_TRANSITIONS=561} [2022-11-16 11:21:37,612 INFO L288 CegarLoopForPetriNet]: 558 programPoint places, -3 predicate places. [2022-11-16 11:21:37,612 INFO L495 AbstractCegarLoop]: Abstraction has has 555 places, 561 transitions, 1323 flow [2022-11-16 11:21:37,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 523.8) internal successors, (7857), 15 states have internal predecessors, (7857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:37,615 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:21:37,616 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:21:37,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:21:37,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-16 11:21:37,823 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-16 11:21:37,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:21:37,824 INFO L85 PathProgramCache]: Analyzing trace with hash -2038839894, now seen corresponding path program 2 times [2022-11-16 11:21:37,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:21:37,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914589579] [2022-11-16 11:21:37,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:37,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:21:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:38,429 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-16 11:21:38,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:21:38,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914589579] [2022-11-16 11:21:38,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914589579] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:21:38,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412988442] [2022-11-16 11:21:38,430 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:21:38,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:21:38,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:21:38,431 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:21:38,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5288403c-6a95-48d5-8d0c-6355be5f7e5b/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:21:38,648 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:21:38,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:21:38,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-16 11:21:38,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:21:39,147 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 [2022-11-16 11:21:39,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:21:39,180 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 [2022-11-16 11:21:39,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:21:39,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:21:39,220 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:21:39,220 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 [2022-11-16 11:21:39,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:21:39,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:21:39,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:21:39,268 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:21:39,270 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 [2022-11-16 11:21:39,308 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-11-16 11:21:39,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:21:39,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412988442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:21:39,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:21:39,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 16 [2022-11-16 11:21:39,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391922054] [2022-11-16 11:21:39,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:21:39,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:21:39,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:21:39,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:21:39,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:21:39,314 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 497 out of 605 [2022-11-16 11:21:39,317 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 555 places, 561 transitions, 1323 flow. Second operand has 7 states, 7 states have (on average 500.85714285714283) internal successors, (3506), 7 states have internal predecessors, (3506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:39,317 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:21:39,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 497 of 605 [2022-11-16 11:21:39,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand