./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-50.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-50.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3fef2534d7e571caae7ed965d7471ed1f22fea3d397b160035401f5a41da921e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:38:50,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:38:50,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:38:50,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:38:50,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:38:50,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:38:50,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:38:50,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:38:50,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:38:50,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:38:50,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:38:50,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:38:50,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:38:50,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:38:50,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:38:50,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:38:50,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:38:50,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:38:50,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:38:50,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:38:50,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:38:50,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:38:50,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:38:50,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:38:50,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:38:50,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:38:50,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:38:50,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:38:50,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:38:50,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:38:50,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:38:50,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:38:50,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:38:50,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:38:50,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:38:50,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:38:50,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:38:50,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:38:50,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:38:50,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:38:50,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:38:50,098 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 18:38:50,140 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:38:50,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:38:50,141 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:38:50,141 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:38:50,142 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:38:50,142 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:38:50,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:38:50,143 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:38:50,143 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:38:50,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:38:50,144 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:38:50,144 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:38:50,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:38:50,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:38:50,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:38:50,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:38:50,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:38:50,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:38:50,145 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 18:38:50,145 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:38:50,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:38:50,146 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:38:50,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:38:50,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:38:50,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:38:50,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:38:50,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:38:50,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:38:50,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:38:50,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:38:50,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:38:50,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:38:50,150 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:38:50,150 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:38:50,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:38:50,150 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_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fef2534d7e571caae7ed965d7471ed1f22fea3d397b160035401f5a41da921e [2022-11-18 18:38:50,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:38:50,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:38:50,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:38:50,521 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:38:50,521 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:38:50,523 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-50.i [2022-11-18 18:38:50,588 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/data/02ed64b53/03422a896cce4faf8a5af702f85d1761/FLAGbc8575aeb [2022-11-18 18:38:51,184 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:38:51,185 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/sv-benchmarks/c/pthread-deagle/reorder_c11_bad-50.i [2022-11-18 18:38:51,208 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/data/02ed64b53/03422a896cce4faf8a5af702f85d1761/FLAGbc8575aeb [2022-11-18 18:38:51,452 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/data/02ed64b53/03422a896cce4faf8a5af702f85d1761 [2022-11-18 18:38:51,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:38:51,457 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:38:51,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:38:51,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:38:51,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:38:51,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:38:51" (1/1) ... [2022-11-18 18:38:51,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@241e3e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:51, skipping insertion in model container [2022-11-18 18:38:51,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:38:51" (1/1) ... [2022-11-18 18:38:51,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:38:51,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:38:51,944 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/sv-benchmarks/c/pthread-deagle/reorder_c11_bad-50.i[30190,30203] [2022-11-18 18:38:51,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:38:51,981 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:38:52,029 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/sv-benchmarks/c/pthread-deagle/reorder_c11_bad-50.i[30190,30203] [2022-11-18 18:38:52,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:38:52,064 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:38:52,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:52 WrapperNode [2022-11-18 18:38:52,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:38:52,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:38:52,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:38:52,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:38:52,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:52" (1/1) ... [2022-11-18 18:38:52,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:52" (1/1) ... [2022-11-18 18:38:52,117 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 137 [2022-11-18 18:38:52,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:38:52,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:38:52,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:38:52,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:38:52,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:52" (1/1) ... [2022-11-18 18:38:52,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:52" (1/1) ... [2022-11-18 18:38:52,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:52" (1/1) ... [2022-11-18 18:38:52,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:52" (1/1) ... [2022-11-18 18:38:52,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:52" (1/1) ... [2022-11-18 18:38:52,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:52" (1/1) ... [2022-11-18 18:38:52,190 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:52" (1/1) ... [2022-11-18 18:38:52,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:52" (1/1) ... [2022-11-18 18:38:52,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:38:52,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:38:52,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:38:52,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:38:52,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:52" (1/1) ... [2022-11-18 18:38:52,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:38:52,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:38:52,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:38:52,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:38:52,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:38:52,281 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-11-18 18:38:52,281 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-11-18 18:38:52,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:38:52,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 18:38:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:38:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:38:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:38:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-11-18 18:38:52,282 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-11-18 18:38:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:38:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 18:38:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:38:52,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:38:52,284 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:38:52,411 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:38:52,413 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:38:52,820 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:38:52,851 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:38:52,852 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 18:38:52,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:38:52 BoogieIcfgContainer [2022-11-18 18:38:52,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:38:52,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:38:52,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:38:52,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:38:52,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:38:51" (1/3) ... [2022-11-18 18:38:52,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741dc428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:38:52, skipping insertion in model container [2022-11-18 18:38:52,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:38:52" (2/3) ... [2022-11-18 18:38:52,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741dc428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:38:52, skipping insertion in model container [2022-11-18 18:38:52,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:38:52" (3/3) ... [2022-11-18 18:38:52,869 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_c11_bad-50.i [2022-11-18 18:38:52,878 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:38:52,889 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:38:52,889 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-18 18:38:52,890 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:38:52,982 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-18 18:38:53,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 210 transitions, 442 flow [2022-11-18 18:38:53,207 INFO L130 PetriNetUnfolder]: 30/521 cut-off events. [2022-11-18 18:38:53,208 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-18 18:38:53,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 521 events. 30/521 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2110 event pairs, 0 based on Foata normal form. 0/410 useless extension candidates. Maximal degree in co-relation 247. Up to 8 conditions per place. [2022-11-18 18:38:53,222 INFO L82 GeneralOperation]: Start removeDead. Operand has 203 places, 210 transitions, 442 flow [2022-11-18 18:38:53,235 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 203 places, 210 transitions, 442 flow [2022-11-18 18:38:53,255 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:38:53,284 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;@36f5ce54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:38:53,284 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-11-18 18:38:53,289 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-18 18:38:53,289 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:38:53,290 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:53,290 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] [2022-11-18 18:38:53,291 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-18 18:38:53,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:53,296 INFO L85 PathProgramCache]: Analyzing trace with hash 534724535, now seen corresponding path program 1 times [2022-11-18 18:38:53,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:53,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570035019] [2022-11-18 18:38:53,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:53,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:53,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:53,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:53,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570035019] [2022-11-18 18:38:53,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570035019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:53,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:53,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:38:53,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540138060] [2022-11-18 18:38:53,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:53,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:38:53,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:53,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:38:53,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:38:53,682 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 210 [2022-11-18 18:38:53,688 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 210 transitions, 442 flow. Second operand has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:53,688 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:53,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 210 [2022-11-18 18:38:53,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:54,093 INFO L130 PetriNetUnfolder]: 192/1120 cut-off events. [2022-11-18 18:38:54,093 INFO L131 PetriNetUnfolder]: For 41/41 co-relation queries the response was YES. [2022-11-18 18:38:54,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1675 conditions, 1120 events. 192/1120 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6233 event pairs, 168 based on Foata normal form. 114/1048 useless extension candidates. Maximal degree in co-relation 1286. Up to 521 conditions per place. [2022-11-18 18:38:54,105 INFO L137 encePairwiseOnDemand]: 200/210 looper letters, 68 selfloop transitions, 2 changer transitions 0/201 dead transitions. [2022-11-18 18:38:54,105 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 201 transitions, 564 flow [2022-11-18 18:38:54,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:38:54,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:38:54,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 471 transitions. [2022-11-18 18:38:54,130 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7476190476190476 [2022-11-18 18:38:54,131 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 471 transitions. [2022-11-18 18:38:54,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 471 transitions. [2022-11-18 18:38:54,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:54,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 471 transitions. [2022-11-18 18:38:54,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:54,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:54,153 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:54,155 INFO L175 Difference]: Start difference. First operand has 203 places, 210 transitions, 442 flow. Second operand 3 states and 471 transitions. [2022-11-18 18:38:54,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 201 transitions, 564 flow [2022-11-18 18:38:54,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 201 transitions, 564 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:38:54,166 INFO L231 Difference]: Finished difference. Result has 201 places, 201 transitions, 428 flow [2022-11-18 18:38:54,168 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=428, PETRI_PLACES=201, PETRI_TRANSITIONS=201} [2022-11-18 18:38:54,172 INFO L288 CegarLoopForPetriNet]: 203 programPoint places, -2 predicate places. [2022-11-18 18:38:54,173 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 201 transitions, 428 flow [2022-11-18 18:38:54,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:54,174 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:54,174 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] [2022-11-18 18:38:54,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:38:54,175 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-18 18:38:54,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:54,175 INFO L85 PathProgramCache]: Analyzing trace with hash -54656402, now seen corresponding path program 1 times [2022-11-18 18:38:54,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:54,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892073180] [2022-11-18 18:38:54,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:54,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:54,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:54,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:54,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892073180] [2022-11-18 18:38:54,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892073180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:54,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:54,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:38:54,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889493397] [2022-11-18 18:38:54,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:54,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:38:54,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:54,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:38:54,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:38:54,250 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 210 [2022-11-18 18:38:54,251 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 201 transitions, 428 flow. Second operand has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:54,251 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:54,251 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 210 [2022-11-18 18:38:54,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:54,528 INFO L130 PetriNetUnfolder]: 156/1011 cut-off events. [2022-11-18 18:38:54,528 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-11-18 18:38:54,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1457 conditions, 1011 events. 156/1011 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 5521 event pairs, 78 based on Foata normal form. 0/898 useless extension candidates. Maximal degree in co-relation 1422. Up to 243 conditions per place. [2022-11-18 18:38:54,538 INFO L137 encePairwiseOnDemand]: 187/210 looper letters, 46 selfloop transitions, 11 changer transitions 0/191 dead transitions. [2022-11-18 18:38:54,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 191 transitions, 522 flow [2022-11-18 18:38:54,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:38:54,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:38:54,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 471 transitions. [2022-11-18 18:38:54,541 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7476190476190476 [2022-11-18 18:38:54,541 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 471 transitions. [2022-11-18 18:38:54,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 471 transitions. [2022-11-18 18:38:54,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:54,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 471 transitions. [2022-11-18 18:38:54,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:54,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:54,545 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:54,546 INFO L175 Difference]: Start difference. First operand has 201 places, 201 transitions, 428 flow. Second operand 3 states and 471 transitions. [2022-11-18 18:38:54,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 191 transitions, 522 flow [2022-11-18 18:38:54,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 191 transitions, 518 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:38:54,551 INFO L231 Difference]: Finished difference. Result has 189 places, 189 transitions, 422 flow [2022-11-18 18:38:54,552 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=422, PETRI_PLACES=189, PETRI_TRANSITIONS=189} [2022-11-18 18:38:54,553 INFO L288 CegarLoopForPetriNet]: 203 programPoint places, -14 predicate places. [2022-11-18 18:38:54,553 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 189 transitions, 422 flow [2022-11-18 18:38:54,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:54,554 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:54,554 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] [2022-11-18 18:38:54,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:38:54,555 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-18 18:38:54,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:54,555 INFO L85 PathProgramCache]: Analyzing trace with hash -2045341073, now seen corresponding path program 1 times [2022-11-18 18:38:54,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:54,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768123478] [2022-11-18 18:38:54,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:54,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:54,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:54,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:54,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768123478] [2022-11-18 18:38:54,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768123478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:54,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:54,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:38:54,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723427824] [2022-11-18 18:38:54,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:54,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:38:54,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:54,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:38:54,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:38:54,682 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 210 [2022-11-18 18:38:54,683 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 189 transitions, 422 flow. Second operand has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:54,683 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:54,683 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 210 [2022-11-18 18:38:54,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:54,937 INFO L130 PetriNetUnfolder]: 99/707 cut-off events. [2022-11-18 18:38:54,937 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-18 18:38:54,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1064 conditions, 707 events. 99/707 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2625 event pairs, 52 based on Foata normal form. 0/632 useless extension candidates. Maximal degree in co-relation 819. Up to 160 conditions per place. [2022-11-18 18:38:54,944 INFO L137 encePairwiseOnDemand]: 198/210 looper letters, 61 selfloop transitions, 8 changer transitions 9/215 dead transitions. [2022-11-18 18:38:54,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 215 transitions, 622 flow [2022-11-18 18:38:54,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:38:54,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:38:54,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 546 transitions. [2022-11-18 18:38:54,947 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2022-11-18 18:38:54,948 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 546 transitions. [2022-11-18 18:38:54,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 546 transitions. [2022-11-18 18:38:54,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:54,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 546 transitions. [2022-11-18 18:38:54,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:54,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:54,953 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:54,953 INFO L175 Difference]: Start difference. First operand has 189 places, 189 transitions, 422 flow. Second operand 3 states and 546 transitions. [2022-11-18 18:38:54,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 215 transitions, 622 flow [2022-11-18 18:38:54,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 215 transitions, 600 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:38:54,959 INFO L231 Difference]: Finished difference. Result has 190 places, 182 transitions, 418 flow [2022-11-18 18:38:54,959 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=418, PETRI_PLACES=190, PETRI_TRANSITIONS=182} [2022-11-18 18:38:54,962 INFO L288 CegarLoopForPetriNet]: 203 programPoint places, -13 predicate places. [2022-11-18 18:38:54,962 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 182 transitions, 418 flow [2022-11-18 18:38:54,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:54,963 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:54,963 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] [2022-11-18 18:38:54,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:38:54,963 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-18 18:38:54,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:54,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1824961802, now seen corresponding path program 1 times [2022-11-18 18:38:54,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:54,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547166944] [2022-11-18 18:38:54,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:54,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:55,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:55,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547166944] [2022-11-18 18:38:55,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547166944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:55,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:55,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:38:55,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904774614] [2022-11-18 18:38:55,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:55,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:38:55,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:55,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:38:55,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:38:55,071 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 210 [2022-11-18 18:38:55,072 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 182 transitions, 418 flow. Second operand has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:55,072 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:55,072 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 210 [2022-11-18 18:38:55,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:55,273 INFO L130 PetriNetUnfolder]: 113/714 cut-off events. [2022-11-18 18:38:55,273 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-11-18 18:38:55,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1099 conditions, 714 events. 113/714 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2644 event pairs, 99 based on Foata normal form. 0/656 useless extension candidates. Maximal degree in co-relation 869. Up to 302 conditions per place. [2022-11-18 18:38:55,279 INFO L137 encePairwiseOnDemand]: 207/210 looper letters, 57 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2022-11-18 18:38:55,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 183 transitions, 538 flow [2022-11-18 18:38:55,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:38:55,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:38:55,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2022-11-18 18:38:55,282 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.719047619047619 [2022-11-18 18:38:55,282 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 453 transitions. [2022-11-18 18:38:55,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 453 transitions. [2022-11-18 18:38:55,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:55,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 453 transitions. [2022-11-18 18:38:55,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:55,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:55,286 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:55,286 INFO L175 Difference]: Start difference. First operand has 190 places, 182 transitions, 418 flow. Second operand 3 states and 453 transitions. [2022-11-18 18:38:55,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 183 transitions, 538 flow [2022-11-18 18:38:55,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 183 transitions, 530 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:38:55,291 INFO L231 Difference]: Finished difference. Result has 182 places, 181 transitions, 412 flow [2022-11-18 18:38:55,292 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=412, PETRI_PLACES=182, PETRI_TRANSITIONS=181} [2022-11-18 18:38:55,292 INFO L288 CegarLoopForPetriNet]: 203 programPoint places, -21 predicate places. [2022-11-18 18:38:55,293 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 181 transitions, 412 flow [2022-11-18 18:38:55,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:55,293 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:55,294 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:38:55,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:38:55,294 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-18 18:38:55,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:55,295 INFO L85 PathProgramCache]: Analyzing trace with hash -474470198, now seen corresponding path program 1 times [2022-11-18 18:38:55,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:55,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283295887] [2022-11-18 18:38:55,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:55,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:55,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:55,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283295887] [2022-11-18 18:38:55,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283295887] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:38:55,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957065008] [2022-11-18 18:38:55,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:55,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:38:55,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:38:55,402 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:38:55,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:38:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:38:55,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:38:55,539 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 18:38:55,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:38:55,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957065008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:55,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:38:55,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-18 18:38:55,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85055402] [2022-11-18 18:38:55,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:55,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:38:55,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:55,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:38:55,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:38:55,542 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 210 [2022-11-18 18:38:55,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 181 transitions, 412 flow. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:55,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:55,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 210 [2022-11-18 18:38:55,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:55,738 INFO L130 PetriNetUnfolder]: 111/709 cut-off events. [2022-11-18 18:38:55,738 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-11-18 18:38:55,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1084 conditions, 709 events. 111/709 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2622 event pairs, 97 based on Foata normal form. 0/654 useless extension candidates. Maximal degree in co-relation 856. Up to 297 conditions per place. [2022-11-18 18:38:55,744 INFO L137 encePairwiseOnDemand]: 207/210 looper letters, 56 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2022-11-18 18:38:55,744 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 182 transitions, 530 flow [2022-11-18 18:38:55,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:38:55,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:38:55,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 452 transitions. [2022-11-18 18:38:55,746 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7174603174603175 [2022-11-18 18:38:55,746 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 452 transitions. [2022-11-18 18:38:55,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 452 transitions. [2022-11-18 18:38:55,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:55,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 452 transitions. [2022-11-18 18:38:55,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:55,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:55,750 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:55,751 INFO L175 Difference]: Start difference. First operand has 182 places, 181 transitions, 412 flow. Second operand 3 states and 452 transitions. [2022-11-18 18:38:55,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 182 transitions, 530 flow [2022-11-18 18:38:55,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 182 transitions, 526 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:38:55,755 INFO L231 Difference]: Finished difference. Result has 181 places, 180 transitions, 410 flow [2022-11-18 18:38:55,756 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=410, PETRI_PLACES=181, PETRI_TRANSITIONS=180} [2022-11-18 18:38:55,757 INFO L288 CegarLoopForPetriNet]: 203 programPoint places, -22 predicate places. [2022-11-18 18:38:55,757 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 180 transitions, 410 flow [2022-11-18 18:38:55,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:55,757 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:55,758 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:38:55,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:38:55,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:38:55,964 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-18 18:38:55,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:55,965 INFO L85 PathProgramCache]: Analyzing trace with hash -252428761, now seen corresponding path program 1 times [2022-11-18 18:38:55,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:55,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376131238] [2022-11-18 18:38:55,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:55,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:38:55,993 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:38:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:38:56,039 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:38:56,040 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:38:56,041 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2022-11-18 18:38:56,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2022-11-18 18:38:56,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2022-11-18 18:38:56,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2022-11-18 18:38:56,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2022-11-18 18:38:56,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2022-11-18 18:38:56,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2022-11-18 18:38:56,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2022-11-18 18:38:56,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2022-11-18 18:38:56,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2022-11-18 18:38:56,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2022-11-18 18:38:56,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2022-11-18 18:38:56,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2022-11-18 18:38:56,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2022-11-18 18:38:56,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2022-11-18 18:38:56,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2022-11-18 18:38:56,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2022-11-18 18:38:56,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2022-11-18 18:38:56,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2022-11-18 18:38:56,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2022-11-18 18:38:56,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2022-11-18 18:38:56,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2022-11-18 18:38:56,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2022-11-18 18:38:56,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2022-11-18 18:38:56,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2022-11-18 18:38:56,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2022-11-18 18:38:56,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2022-11-18 18:38:56,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2022-11-18 18:38:56,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2022-11-18 18:38:56,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 36 remaining) [2022-11-18 18:38:56,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2022-11-18 18:38:56,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2022-11-18 18:38:56,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2022-11-18 18:38:56,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2022-11-18 18:38:56,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2022-11-18 18:38:56,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2022-11-18 18:38:56,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:38:56,049 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-18 18:38:56,052 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 18:38:56,052 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-18 18:38:56,090 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-18 18:38:56,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 249 places, 260 transitions, 568 flow [2022-11-18 18:38:56,404 INFO L130 PetriNetUnfolder]: 125/1739 cut-off events. [2022-11-18 18:38:56,404 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-18 18:38:56,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1836 conditions, 1739 events. 125/1739 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 10322 event pairs, 2 based on Foata normal form. 0/1374 useless extension candidates. Maximal degree in co-relation 980. Up to 32 conditions per place. [2022-11-18 18:38:56,419 INFO L82 GeneralOperation]: Start removeDead. Operand has 249 places, 260 transitions, 568 flow [2022-11-18 18:38:56,432 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 249 places, 260 transitions, 568 flow [2022-11-18 18:38:56,433 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:38:56,434 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;@36f5ce54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:38:56,434 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2022-11-18 18:38:56,437 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-18 18:38:56,437 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:38:56,437 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:56,437 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] [2022-11-18 18:38:56,438 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-18 18:38:56,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:56,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1775485511, now seen corresponding path program 1 times [2022-11-18 18:38:56,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:56,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944019681] [2022-11-18 18:38:56,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:56,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:56,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:56,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:56,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944019681] [2022-11-18 18:38:56,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944019681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:56,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:56,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:38:56,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855649669] [2022-11-18 18:38:56,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:56,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:38:56,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:56,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:38:56,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:38:56,466 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 260 [2022-11-18 18:38:56,467 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 260 transitions, 568 flow. Second operand has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:56,467 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:56,467 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 260 [2022-11-18 18:38:56,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:58,988 INFO L130 PetriNetUnfolder]: 2687/8550 cut-off events. [2022-11-18 18:38:58,988 INFO L131 PetriNetUnfolder]: For 648/684 co-relation queries the response was YES. [2022-11-18 18:38:59,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13897 conditions, 8550 events. 2687/8550 cut-off events. For 648/684 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 68398 event pairs, 2481 based on Foata normal form. 2081/9444 useless extension candidates. Maximal degree in co-relation 7299. Up to 5052 conditions per place. [2022-11-18 18:38:59,158 INFO L137 encePairwiseOnDemand]: 247/260 looper letters, 76 selfloop transitions, 2 changer transitions 0/247 dead transitions. [2022-11-18 18:38:59,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 247 transitions, 698 flow [2022-11-18 18:38:59,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:38:59,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:38:59,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 596 transitions. [2022-11-18 18:38:59,161 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.764102564102564 [2022-11-18 18:38:59,161 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 596 transitions. [2022-11-18 18:38:59,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 596 transitions. [2022-11-18 18:38:59,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:59,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 596 transitions. [2022-11-18 18:38:59,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:59,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:59,166 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:59,166 INFO L175 Difference]: Start difference. First operand has 249 places, 260 transitions, 568 flow. Second operand 3 states and 596 transitions. [2022-11-18 18:38:59,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 247 transitions, 698 flow [2022-11-18 18:38:59,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 247 transitions, 698 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:38:59,175 INFO L231 Difference]: Finished difference. Result has 244 places, 247 transitions, 546 flow [2022-11-18 18:38:59,176 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=546, PETRI_PLACES=244, PETRI_TRANSITIONS=247} [2022-11-18 18:38:59,177 INFO L288 CegarLoopForPetriNet]: 249 programPoint places, -5 predicate places. [2022-11-18 18:38:59,179 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 247 transitions, 546 flow [2022-11-18 18:38:59,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:59,181 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:59,181 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] [2022-11-18 18:38:59,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:38:59,181 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-18 18:38:59,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:59,182 INFO L85 PathProgramCache]: Analyzing trace with hash -965929490, now seen corresponding path program 1 times [2022-11-18 18:38:59,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:59,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550733961] [2022-11-18 18:38:59,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:59,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:59,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:59,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:59,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550733961] [2022-11-18 18:38:59,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550733961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:59,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:59,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:38:59,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824091874] [2022-11-18 18:38:59,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:59,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:38:59,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:59,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:38:59,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:38:59,246 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 260 [2022-11-18 18:38:59,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 247 transitions, 546 flow. Second operand has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:59,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:59,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 260 [2022-11-18 18:38:59,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:39:00,962 INFO L130 PetriNetUnfolder]: 2173/7264 cut-off events. [2022-11-18 18:39:00,962 INFO L131 PetriNetUnfolder]: For 649/685 co-relation queries the response was YES. [2022-11-18 18:39:01,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11565 conditions, 7264 events. 2173/7264 cut-off events. For 649/685 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 56953 event pairs, 1169 based on Foata normal form. 0/6585 useless extension candidates. Maximal degree in co-relation 11528. Up to 2412 conditions per place. [2022-11-18 18:39:01,065 INFO L137 encePairwiseOnDemand]: 237/260 looper letters, 56 selfloop transitions, 11 changer transitions 0/239 dead transitions. [2022-11-18 18:39:01,065 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 239 transitions, 664 flow [2022-11-18 18:39:01,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:39:01,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:39:01,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 595 transitions. [2022-11-18 18:39:01,067 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7628205128205128 [2022-11-18 18:39:01,067 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 595 transitions. [2022-11-18 18:39:01,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 595 transitions. [2022-11-18 18:39:01,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:39:01,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 595 transitions. [2022-11-18 18:39:01,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:01,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:01,072 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:01,072 INFO L175 Difference]: Start difference. First operand has 244 places, 247 transitions, 546 flow. Second operand 3 states and 595 transitions. [2022-11-18 18:39:01,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 239 transitions, 664 flow [2022-11-18 18:39:01,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 239 transitions, 660 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:39:01,077 INFO L231 Difference]: Finished difference. Result has 232 places, 235 transitions, 540 flow [2022-11-18 18:39:01,078 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=540, PETRI_PLACES=232, PETRI_TRANSITIONS=235} [2022-11-18 18:39:01,079 INFO L288 CegarLoopForPetriNet]: 249 programPoint places, -17 predicate places. [2022-11-18 18:39:01,079 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 235 transitions, 540 flow [2022-11-18 18:39:01,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:01,079 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:39:01,080 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:01,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:39:01,080 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-18 18:39:01,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:01,081 INFO L85 PathProgramCache]: Analyzing trace with hash -957051023, now seen corresponding path program 1 times [2022-11-18 18:39:01,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:01,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616383007] [2022-11-18 18:39:01,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:01,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:01,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:01,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:01,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616383007] [2022-11-18 18:39:01,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616383007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:01,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:01,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:39:01,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367984884] [2022-11-18 18:39:01,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:01,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:39:01,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:01,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:39:01,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:39:01,128 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 260 [2022-11-18 18:39:01,129 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 235 transitions, 540 flow. Second operand has 3 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:01,129 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:39:01,129 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 260 [2022-11-18 18:39:01,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:39:03,165 INFO L130 PetriNetUnfolder]: 2174/7894 cut-off events. [2022-11-18 18:39:03,165 INFO L131 PetriNetUnfolder]: For 258/258 co-relation queries the response was YES. [2022-11-18 18:39:03,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12828 conditions, 7894 events. 2174/7894 cut-off events. For 258/258 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 63130 event pairs, 994 based on Foata normal form. 0/7194 useless extension candidates. Maximal degree in co-relation 5478. Up to 2249 conditions per place. [2022-11-18 18:39:03,288 INFO L137 encePairwiseOnDemand]: 248/260 looper letters, 85 selfloop transitions, 8 changer transitions 0/275 dead transitions. [2022-11-18 18:39:03,288 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 275 transitions, 830 flow [2022-11-18 18:39:03,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:39:03,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:39:03,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2022-11-18 18:39:03,291 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8743589743589744 [2022-11-18 18:39:03,291 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 682 transitions. [2022-11-18 18:39:03,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 682 transitions. [2022-11-18 18:39:03,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:39:03,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 682 transitions. [2022-11-18 18:39:03,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:03,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:03,296 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:03,296 INFO L175 Difference]: Start difference. First operand has 232 places, 235 transitions, 540 flow. Second operand 3 states and 682 transitions. [2022-11-18 18:39:03,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 275 transitions, 830 flow [2022-11-18 18:39:03,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 275 transitions, 808 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:39:03,304 INFO L231 Difference]: Finished difference. Result has 233 places, 239 transitions, 566 flow [2022-11-18 18:39:03,305 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=566, PETRI_PLACES=233, PETRI_TRANSITIONS=239} [2022-11-18 18:39:03,307 INFO L288 CegarLoopForPetriNet]: 249 programPoint places, -16 predicate places. [2022-11-18 18:39:03,307 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 239 transitions, 566 flow [2022-11-18 18:39:03,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:03,308 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:39:03,308 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] [2022-11-18 18:39:03,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:39:03,309 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-18 18:39:03,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:03,309 INFO L85 PathProgramCache]: Analyzing trace with hash 26835934, now seen corresponding path program 1 times [2022-11-18 18:39:03,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:03,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322906862] [2022-11-18 18:39:03,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:03,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:03,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:03,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:03,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322906862] [2022-11-18 18:39:03,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322906862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:03,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:03,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:39:03,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368584724] [2022-11-18 18:39:03,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:03,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:39:03,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:03,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:39:03,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:39:03,368 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 260 [2022-11-18 18:39:03,369 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 239 transitions, 566 flow. Second operand has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:03,369 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:39:03,369 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 260 [2022-11-18 18:39:03,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:39:04,983 INFO L130 PetriNetUnfolder]: 2124/7842 cut-off events. [2022-11-18 18:39:04,983 INFO L131 PetriNetUnfolder]: For 740/740 co-relation queries the response was YES. [2022-11-18 18:39:05,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12608 conditions, 7842 events. 2124/7842 cut-off events. For 740/740 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 63138 event pairs, 1928 based on Foata normal form. 0/7271 useless extension candidates. Maximal degree in co-relation 5609. Up to 3941 conditions per place. [2022-11-18 18:39:05,151 INFO L137 encePairwiseOnDemand]: 257/260 looper letters, 67 selfloop transitions, 2 changer transitions 0/242 dead transitions. [2022-11-18 18:39:05,152 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 242 transitions, 710 flow [2022-11-18 18:39:05,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:39:05,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:39:05,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 577 transitions. [2022-11-18 18:39:05,156 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7397435897435898 [2022-11-18 18:39:05,156 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 577 transitions. [2022-11-18 18:39:05,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 577 transitions. [2022-11-18 18:39:05,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:39:05,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 577 transitions. [2022-11-18 18:39:05,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:05,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:05,165 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:05,165 INFO L175 Difference]: Start difference. First operand has 233 places, 239 transitions, 566 flow. Second operand 3 states and 577 transitions. [2022-11-18 18:39:05,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 242 transitions, 710 flow [2022-11-18 18:39:05,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 242 transitions, 702 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:39:05,171 INFO L231 Difference]: Finished difference. Result has 233 places, 238 transitions, 560 flow [2022-11-18 18:39:05,172 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=560, PETRI_PLACES=233, PETRI_TRANSITIONS=238} [2022-11-18 18:39:05,173 INFO L288 CegarLoopForPetriNet]: 249 programPoint places, -16 predicate places. [2022-11-18 18:39:05,173 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 238 transitions, 560 flow [2022-11-18 18:39:05,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:05,174 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:39:05,174 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:05,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 18:39:05,174 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-18 18:39:05,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:05,175 INFO L85 PathProgramCache]: Analyzing trace with hash -363605896, now seen corresponding path program 1 times [2022-11-18 18:39:05,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:05,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172352367] [2022-11-18 18:39:05,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:05,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:05,298 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:05,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:05,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172352367] [2022-11-18 18:39:05,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172352367] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:39:05,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595234911] [2022-11-18 18:39:05,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:05,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:39:05,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:39:05,303 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:39:05,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 18:39:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:05,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:39:05,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:05,425 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 18:39:05,425 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:39:05,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595234911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:05,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:39:05,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-18 18:39:05,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336160683] [2022-11-18 18:39:05,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:05,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:39:05,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:05,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:39:05,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:39:05,428 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 260 [2022-11-18 18:39:05,429 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 238 transitions, 560 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:05,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:39:05,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 260 [2022-11-18 18:39:05,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:39:07,027 INFO L130 PetriNetUnfolder]: 2110/7804 cut-off events. [2022-11-18 18:39:07,027 INFO L131 PetriNetUnfolder]: For 751/751 co-relation queries the response was YES. [2022-11-18 18:39:07,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12469 conditions, 7804 events. 2110/7804 cut-off events. For 751/751 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 62750 event pairs, 1914 based on Foata normal form. 0/7245 useless extension candidates. Maximal degree in co-relation 5521. Up to 3915 conditions per place. [2022-11-18 18:39:07,118 INFO L137 encePairwiseOnDemand]: 257/260 looper letters, 66 selfloop transitions, 2 changer transitions 0/241 dead transitions. [2022-11-18 18:39:07,118 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 241 transitions, 702 flow [2022-11-18 18:39:07,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:39:07,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:39:07,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 576 transitions. [2022-11-18 18:39:07,121 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7384615384615385 [2022-11-18 18:39:07,121 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 576 transitions. [2022-11-18 18:39:07,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 576 transitions. [2022-11-18 18:39:07,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:39:07,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 576 transitions. [2022-11-18 18:39:07,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:07,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:07,126 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:07,126 INFO L175 Difference]: Start difference. First operand has 233 places, 238 transitions, 560 flow. Second operand 3 states and 576 transitions. [2022-11-18 18:39:07,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 241 transitions, 702 flow [2022-11-18 18:39:07,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 241 transitions, 698 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:39:07,133 INFO L231 Difference]: Finished difference. Result has 232 places, 237 transitions, 558 flow [2022-11-18 18:39:07,134 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=558, PETRI_PLACES=232, PETRI_TRANSITIONS=237} [2022-11-18 18:39:07,134 INFO L288 CegarLoopForPetriNet]: 249 programPoint places, -17 predicate places. [2022-11-18 18:39:07,134 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 237 transitions, 558 flow [2022-11-18 18:39:07,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:07,135 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:39:07,135 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:07,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-18 18:39:07,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:39:07,343 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-18 18:39:07,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:07,344 INFO L85 PathProgramCache]: Analyzing trace with hash -723349642, now seen corresponding path program 1 times [2022-11-18 18:39:07,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:07,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528874448] [2022-11-18 18:39:07,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:07,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:07,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:07,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:07,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528874448] [2022-11-18 18:39:07,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528874448] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:39:07,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924924705] [2022-11-18 18:39:07,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:07,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:39:07,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:39:07,506 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:39:07,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 18:39:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:07,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:39:07,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:07,642 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 18:39:07,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:39:07,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924924705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:07,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:39:07,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-18 18:39:07,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647756885] [2022-11-18 18:39:07,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:07,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:39:07,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:07,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:39:07,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:39:07,647 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 260 [2022-11-18 18:39:07,649 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 237 transitions, 558 flow. Second operand has 3 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:07,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:39:07,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 260 [2022-11-18 18:39:07,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:39:13,500 INFO L130 PetriNetUnfolder]: 6387/40069 cut-off events. [2022-11-18 18:39:13,500 INFO L131 PetriNetUnfolder]: For 11074/87833 co-relation queries the response was YES. [2022-11-18 18:39:13,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53036 conditions, 40069 events. 6387/40069 cut-off events. For 11074/87833 co-relation queries the response was YES. Maximal size of possible extension queue 937. Compared 570836 event pairs, 1961 based on Foata normal form. 69/33888 useless extension candidates. Maximal degree in co-relation 45284. Up to 4468 conditions per place. [2022-11-18 18:39:13,812 INFO L137 encePairwiseOnDemand]: 246/260 looper letters, 39 selfloop transitions, 10 changer transitions 0/258 dead transitions. [2022-11-18 18:39:13,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 258 transitions, 727 flow [2022-11-18 18:39:13,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:39:13,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:39:13,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 713 transitions. [2022-11-18 18:39:13,815 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9141025641025641 [2022-11-18 18:39:13,815 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 713 transitions. [2022-11-18 18:39:13,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 713 transitions. [2022-11-18 18:39:13,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:39:13,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 713 transitions. [2022-11-18 18:39:13,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 237.66666666666666) internal successors, (713), 3 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:13,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:13,820 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:13,820 INFO L175 Difference]: Start difference. First operand has 232 places, 237 transitions, 558 flow. Second operand 3 states and 713 transitions. [2022-11-18 18:39:13,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 258 transitions, 727 flow [2022-11-18 18:39:13,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 258 transitions, 723 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:39:13,857 INFO L231 Difference]: Finished difference. Result has 234 places, 247 transitions, 642 flow [2022-11-18 18:39:13,858 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=642, PETRI_PLACES=234, PETRI_TRANSITIONS=247} [2022-11-18 18:39:13,858 INFO L288 CegarLoopForPetriNet]: 249 programPoint places, -15 predicate places. [2022-11-18 18:39:13,858 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 247 transitions, 642 flow [2022-11-18 18:39:13,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:13,859 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:39:13,859 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:13,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:14,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 18:39:14,071 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-18 18:39:14,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:14,072 INFO L85 PathProgramCache]: Analyzing trace with hash 645704468, now seen corresponding path program 1 times [2022-11-18 18:39:14,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:14,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751533934] [2022-11-18 18:39:14,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:14,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:14,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:14,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:14,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751533934] [2022-11-18 18:39:14,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751533934] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:39:14,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318923634] [2022-11-18 18:39:14,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:14,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:39:14,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:39:14,187 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:39:14,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 18:39:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:14,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:39:14,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:39:14,373 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:14,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:39:14,448 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:14,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318923634] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:39:14,448 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:39:14,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 18:39:14,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435319034] [2022-11-18 18:39:14,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:39:14,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:39:14,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:14,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:39:14,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:39:14,454 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 260 [2022-11-18 18:39:14,456 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 247 transitions, 642 flow. Second operand has 10 states, 10 states have (on average 195.9) internal successors, (1959), 10 states have internal predecessors, (1959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:14,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:39:14,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 260 [2022-11-18 18:39:14,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:39:14,571 INFO L130 PetriNetUnfolder]: 76/339 cut-off events. [2022-11-18 18:39:14,571 INFO L131 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2022-11-18 18:39:14,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 585 conditions, 339 events. 76/339 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1173 event pairs, 0 based on Foata normal form. 12/343 useless extension candidates. Maximal degree in co-relation 576. Up to 63 conditions per place. [2022-11-18 18:39:14,573 INFO L137 encePairwiseOnDemand]: 255/260 looper letters, 32 selfloop transitions, 7 changer transitions 0/83 dead transitions. [2022-11-18 18:39:14,573 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 83 transitions, 284 flow [2022-11-18 18:39:14,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:39:14,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 18:39:14,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1778 transitions. [2022-11-18 18:39:14,578 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7598290598290598 [2022-11-18 18:39:14,578 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1778 transitions. [2022-11-18 18:39:14,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1778 transitions. [2022-11-18 18:39:14,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:39:14,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1778 transitions. [2022-11-18 18:39:14,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 197.55555555555554) internal successors, (1778), 9 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:14,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 260.0) internal successors, (2600), 10 states have internal predecessors, (2600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:14,590 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 260.0) internal successors, (2600), 10 states have internal predecessors, (2600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:14,590 INFO L175 Difference]: Start difference. First operand has 234 places, 247 transitions, 642 flow. Second operand 9 states and 1778 transitions. [2022-11-18 18:39:14,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 83 transitions, 284 flow [2022-11-18 18:39:14,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 83 transitions, 282 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-11-18 18:39:14,592 INFO L231 Difference]: Finished difference. Result has 77 places, 61 transitions, 156 flow [2022-11-18 18:39:14,593 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=156, PETRI_PLACES=77, PETRI_TRANSITIONS=61} [2022-11-18 18:39:14,593 INFO L288 CegarLoopForPetriNet]: 249 programPoint places, -172 predicate places. [2022-11-18 18:39:14,593 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 61 transitions, 156 flow [2022-11-18 18:39:14,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 195.9) internal successors, (1959), 10 states have internal predecessors, (1959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:14,596 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:39:14,596 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:14,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:39:14,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1b8e40-57cf-4c4b-b47b-f2ee7578b19e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 18:39:14,801 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-18 18:39:14,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:14,801 INFO L85 PathProgramCache]: Analyzing trace with hash 759265801, now seen corresponding path program 1 times [2022-11-18 18:39:14,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:14,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336984930] [2022-11-18 18:39:14,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:14,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:39:14,818 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:39:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:39:14,847 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:39:14,847 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:39:14,848 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 42 remaining) [2022-11-18 18:39:14,848 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (40 of 42 remaining) [2022-11-18 18:39:14,848 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (39 of 42 remaining) [2022-11-18 18:39:14,848 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (38 of 42 remaining) [2022-11-18 18:39:14,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (37 of 42 remaining) [2022-11-18 18:39:14,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (36 of 42 remaining) [2022-11-18 18:39:14,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (35 of 42 remaining) [2022-11-18 18:39:14,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 42 remaining) [2022-11-18 18:39:14,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 42 remaining) [2022-11-18 18:39:14,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 42 remaining) [2022-11-18 18:39:14,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 42 remaining) [2022-11-18 18:39:14,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (30 of 42 remaining) [2022-11-18 18:39:14,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (29 of 42 remaining) [2022-11-18 18:39:14,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 42 remaining) [2022-11-18 18:39:14,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 42 remaining) [2022-11-18 18:39:14,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (26 of 42 remaining) [2022-11-18 18:39:14,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (25 of 42 remaining) [2022-11-18 18:39:14,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (24 of 42 remaining) [2022-11-18 18:39:14,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 42 remaining) [2022-11-18 18:39:14,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (22 of 42 remaining) [2022-11-18 18:39:14,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (21 of 42 remaining) [2022-11-18 18:39:14,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (20 of 42 remaining) [2022-11-18 18:39:14,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (19 of 42 remaining) [2022-11-18 18:39:14,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (18 of 42 remaining) [2022-11-18 18:39:14,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (17 of 42 remaining) [2022-11-18 18:39:14,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (16 of 42 remaining) [2022-11-18 18:39:14,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (15 of 42 remaining) [2022-11-18 18:39:14,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (14 of 42 remaining) [2022-11-18 18:39:14,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (13 of 42 remaining) [2022-11-18 18:39:14,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 42 remaining) [2022-11-18 18:39:14,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (11 of 42 remaining) [2022-11-18 18:39:14,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (10 of 42 remaining) [2022-11-18 18:39:14,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (9 of 42 remaining) [2022-11-18 18:39:14,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (8 of 42 remaining) [2022-11-18 18:39:14,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 42 remaining) [2022-11-18 18:39:14,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 42 remaining) [2022-11-18 18:39:14,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 42 remaining) [2022-11-18 18:39:14,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 42 remaining) [2022-11-18 18:39:14,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 42 remaining) [2022-11-18 18:39:14,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 42 remaining) [2022-11-18 18:39:14,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 42 remaining) [2022-11-18 18:39:14,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 42 remaining) [2022-11-18 18:39:14,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 18:39:14,857 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:14,858 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 18:39:14,858 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-18 18:39:14,927 INFO L144 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2022-11-18 18:39:14,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 295 places, 310 transitions, 698 flow [2022-11-18 18:39:16,154 INFO L130 PetriNetUnfolder]: 532/5843 cut-off events. [2022-11-18 18:39:16,155 INFO L131 PetriNetUnfolder]: For 419/419 co-relation queries the response was YES. [2022-11-18 18:39:16,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6294 conditions, 5843 events. 532/5843 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 47085 event pairs, 64 based on Foata normal form. 0/4654 useless extension candidates. Maximal degree in co-relation 3338. Up to 192 conditions per place. [2022-11-18 18:39:16,205 INFO L82 GeneralOperation]: Start removeDead. Operand has 295 places, 310 transitions, 698 flow [2022-11-18 18:39:16,261 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 295 places, 310 transitions, 698 flow [2022-11-18 18:39:16,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:39:16,263 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;@36f5ce54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:39:16,263 INFO L358 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2022-11-18 18:39:16,266 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-18 18:39:16,266 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:39:16,266 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:39:16,266 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] [2022-11-18 18:39:16,267 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-11-18 18:39:16,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:16,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1692627181, now seen corresponding path program 1 times [2022-11-18 18:39:16,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:16,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239867321] [2022-11-18 18:39:16,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:16,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:16,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:16,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:16,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:16,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239867321] [2022-11-18 18:39:16,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239867321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:16,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:16,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:39:16,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541483611] [2022-11-18 18:39:16,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:16,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:39:16,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:16,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:39:16,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:39:16,302 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 310 [2022-11-18 18:39:16,304 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 310 transitions, 698 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:16,304 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:39:16,305 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 310 [2022-11-18 18:39:16,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:39:32,795 INFO L130 PetriNetUnfolder]: 28496/68376 cut-off events. [2022-11-18 18:39:32,796 INFO L131 PetriNetUnfolder]: For 7595/7967 co-relation queries the response was YES. [2022-11-18 18:39:33,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116502 conditions, 68376 events. 28496/68376 cut-off events. For 7595/7967 co-relation queries the response was YES. Maximal size of possible extension queue 614. Compared 680315 event pairs, 26638 based on Foata normal form. 24357/84841 useless extension candidates. Maximal degree in co-relation 61368. Up to 45367 conditions per place. [2022-11-18 18:39:34,828 INFO L137 encePairwiseOnDemand]: 294/310 looper letters, 84 selfloop transitions, 2 changer transitions 0/293 dead transitions. [2022-11-18 18:39:34,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 293 transitions, 836 flow [2022-11-18 18:39:34,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:39:34,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:39:34,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 721 transitions. [2022-11-18 18:39:34,834 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7752688172043011 [2022-11-18 18:39:34,834 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 721 transitions. [2022-11-18 18:39:34,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 721 transitions. [2022-11-18 18:39:34,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:39:34,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 721 transitions. [2022-11-18 18:39:34,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 240.33333333333334) internal successors, (721), 3 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:34,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 310.0) internal successors, (1240), 4 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:34,840 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 310.0) internal successors, (1240), 4 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:34,840 INFO L175 Difference]: Start difference. First operand has 295 places, 310 transitions, 698 flow. Second operand 3 states and 721 transitions. [2022-11-18 18:39:34,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 293 transitions, 836 flow [2022-11-18 18:39:34,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 293 transitions, 836 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:39:34,852 INFO L231 Difference]: Finished difference. Result has 287 places, 293 transitions, 668 flow [2022-11-18 18:39:34,852 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=310, PETRI_DIFFERENCE_MINUEND_FLOW=664, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=668, PETRI_PLACES=287, PETRI_TRANSITIONS=293} [2022-11-18 18:39:34,853 INFO L288 CegarLoopForPetriNet]: 295 programPoint places, -8 predicate places. [2022-11-18 18:39:34,853 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 293 transitions, 668 flow [2022-11-18 18:39:34,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:34,854 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:39:34,854 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] [2022-11-18 18:39:34,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 18:39:34,854 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-11-18 18:39:34,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:34,855 INFO L85 PathProgramCache]: Analyzing trace with hash 2141278446, now seen corresponding path program 1 times [2022-11-18 18:39:34,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:34,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472741403] [2022-11-18 18:39:34,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:34,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:34,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:34,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:34,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472741403] [2022-11-18 18:39:34,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472741403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:34,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:34,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:39:34,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932926704] [2022-11-18 18:39:34,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:34,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:39:34,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:34,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:39:34,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:39:34,881 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 310 [2022-11-18 18:39:34,882 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 293 transitions, 668 flow. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:34,883 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:39:34,883 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 310 [2022-11-18 18:39:34,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand